Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
6b6b6042 TR |
2 | /* |
3 | * Copyright (C) 2013 NVIDIA Corporation | |
6b6b6042 TR |
4 | */ |
5 | ||
6 | #include <linux/clk.h> | |
b299221c | 7 | #include <linux/clk-provider.h> |
a82752e1 | 8 | #include <linux/debugfs.h> |
6b6b6042 | 9 | #include <linux/io.h> |
eb1df694 | 10 | #include <linux/module.h> |
722d4f06 | 11 | #include <linux/of.h> |
6b6b6042 | 12 | #include <linux/platform_device.h> |
aaff8bd2 | 13 | #include <linux/pm_runtime.h> |
459cc2c6 | 14 | #include <linux/regulator/consumer.h> |
6b6b6042 | 15 | #include <linux/reset.h> |
306a7f91 | 16 | |
7232398a | 17 | #include <soc/tegra/pmc.h> |
6b6b6042 | 18 | |
da68386d | 19 | #include <drm/display/drm_dp_helper.h> |
644edf52 | 20 | #include <drm/display/drm_scdc_helper.h> |
4aa3df71 | 21 | #include <drm/drm_atomic_helper.h> |
eb1df694 | 22 | #include <drm/drm_debugfs.h> |
11aa6d78 | 23 | #include <drm/drm_edid.h> |
439590ac | 24 | #include <drm/drm_eld.h> |
eb1df694 | 25 | #include <drm/drm_file.h> |
6fad8f66 | 26 | #include <drm/drm_panel.h> |
4d0e95e0 | 27 | #include <drm/drm_simple_kms_helper.h> |
6b6b6042 TR |
28 | |
29 | #include "dc.h" | |
9a42c7c6 | 30 | #include "dp.h" |
6b6b6042 | 31 | #include "drm.h" |
fad7b806 | 32 | #include "hda.h" |
6b6b6042 | 33 | #include "sor.h" |
932f6529 | 34 | #include "trace.h" |
6b6b6042 | 35 | |
459cc2c6 TR |
36 | #define SOR_REKEY 0x38 |
37 | ||
38 | struct tegra_sor_hdmi_settings { | |
39 | unsigned long frequency; | |
40 | ||
41 | u8 vcocap; | |
c57997bc | 42 | u8 filter; |
459cc2c6 TR |
43 | u8 ichpmp; |
44 | u8 loadadj; | |
c57997bc TR |
45 | u8 tmds_termadj; |
46 | u8 tx_pu_value; | |
47 | u8 bg_temp_coef; | |
48 | u8 bg_vref_level; | |
49 | u8 avdd10_level; | |
50 | u8 avdd14_level; | |
51 | u8 sparepll; | |
459cc2c6 TR |
52 | |
53 | u8 drive_current[4]; | |
54 | u8 preemphasis[4]; | |
55 | }; | |
56 | ||
57 | #if 1 | |
58 | static const struct tegra_sor_hdmi_settings tegra210_sor_hdmi_defaults[] = { | |
59 | { | |
60 | .frequency = 54000000, | |
61 | .vcocap = 0x0, | |
c57997bc | 62 | .filter = 0x0, |
459cc2c6 TR |
63 | .ichpmp = 0x1, |
64 | .loadadj = 0x3, | |
c57997bc TR |
65 | .tmds_termadj = 0x9, |
66 | .tx_pu_value = 0x10, | |
67 | .bg_temp_coef = 0x3, | |
68 | .bg_vref_level = 0x8, | |
69 | .avdd10_level = 0x4, | |
70 | .avdd14_level = 0x4, | |
71 | .sparepll = 0x0, | |
459cc2c6 TR |
72 | .drive_current = { 0x33, 0x3a, 0x3a, 0x3a }, |
73 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
74 | }, { | |
75 | .frequency = 75000000, | |
76 | .vcocap = 0x3, | |
c57997bc | 77 | .filter = 0x0, |
459cc2c6 TR |
78 | .ichpmp = 0x1, |
79 | .loadadj = 0x3, | |
c57997bc TR |
80 | .tmds_termadj = 0x9, |
81 | .tx_pu_value = 0x40, | |
82 | .bg_temp_coef = 0x3, | |
83 | .bg_vref_level = 0x8, | |
84 | .avdd10_level = 0x4, | |
85 | .avdd14_level = 0x4, | |
86 | .sparepll = 0x0, | |
459cc2c6 TR |
87 | .drive_current = { 0x33, 0x3a, 0x3a, 0x3a }, |
88 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
89 | }, { | |
90 | .frequency = 150000000, | |
91 | .vcocap = 0x3, | |
c57997bc | 92 | .filter = 0x0, |
459cc2c6 TR |
93 | .ichpmp = 0x1, |
94 | .loadadj = 0x3, | |
c57997bc TR |
95 | .tmds_termadj = 0x9, |
96 | .tx_pu_value = 0x66, | |
97 | .bg_temp_coef = 0x3, | |
98 | .bg_vref_level = 0x8, | |
99 | .avdd10_level = 0x4, | |
100 | .avdd14_level = 0x4, | |
101 | .sparepll = 0x0, | |
459cc2c6 TR |
102 | .drive_current = { 0x33, 0x3a, 0x3a, 0x3a }, |
103 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
104 | }, { | |
105 | .frequency = 300000000, | |
106 | .vcocap = 0x3, | |
c57997bc | 107 | .filter = 0x0, |
459cc2c6 TR |
108 | .ichpmp = 0x1, |
109 | .loadadj = 0x3, | |
c57997bc TR |
110 | .tmds_termadj = 0x9, |
111 | .tx_pu_value = 0x66, | |
112 | .bg_temp_coef = 0x3, | |
113 | .bg_vref_level = 0xa, | |
114 | .avdd10_level = 0x4, | |
115 | .avdd14_level = 0x4, | |
116 | .sparepll = 0x0, | |
459cc2c6 TR |
117 | .drive_current = { 0x33, 0x3f, 0x3f, 0x3f }, |
118 | .preemphasis = { 0x00, 0x17, 0x17, 0x17 }, | |
119 | }, { | |
120 | .frequency = 600000000, | |
121 | .vcocap = 0x3, | |
c57997bc | 122 | .filter = 0x0, |
459cc2c6 TR |
123 | .ichpmp = 0x1, |
124 | .loadadj = 0x3, | |
c57997bc TR |
125 | .tmds_termadj = 0x9, |
126 | .tx_pu_value = 0x66, | |
127 | .bg_temp_coef = 0x3, | |
128 | .bg_vref_level = 0x8, | |
129 | .avdd10_level = 0x4, | |
130 | .avdd14_level = 0x4, | |
131 | .sparepll = 0x0, | |
459cc2c6 TR |
132 | .drive_current = { 0x33, 0x3f, 0x3f, 0x3f }, |
133 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
134 | }, | |
135 | }; | |
136 | #else | |
137 | static const struct tegra_sor_hdmi_settings tegra210_sor_hdmi_defaults[] = { | |
138 | { | |
139 | .frequency = 75000000, | |
140 | .vcocap = 0x3, | |
c57997bc | 141 | .filter = 0x0, |
459cc2c6 TR |
142 | .ichpmp = 0x1, |
143 | .loadadj = 0x3, | |
c57997bc TR |
144 | .tmds_termadj = 0x9, |
145 | .tx_pu_value = 0x40, | |
146 | .bg_temp_coef = 0x3, | |
147 | .bg_vref_level = 0x8, | |
148 | .avdd10_level = 0x4, | |
149 | .avdd14_level = 0x4, | |
150 | .sparepll = 0x0, | |
459cc2c6 TR |
151 | .drive_current = { 0x29, 0x29, 0x29, 0x29 }, |
152 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
153 | }, { | |
154 | .frequency = 150000000, | |
155 | .vcocap = 0x3, | |
c57997bc | 156 | .filter = 0x0, |
459cc2c6 TR |
157 | .ichpmp = 0x1, |
158 | .loadadj = 0x3, | |
c57997bc TR |
159 | .tmds_termadj = 0x9, |
160 | .tx_pu_value = 0x66, | |
161 | .bg_temp_coef = 0x3, | |
162 | .bg_vref_level = 0x8, | |
163 | .avdd10_level = 0x4, | |
164 | .avdd14_level = 0x4, | |
165 | .sparepll = 0x0, | |
459cc2c6 TR |
166 | .drive_current = { 0x30, 0x37, 0x37, 0x37 }, |
167 | .preemphasis = { 0x01, 0x02, 0x02, 0x02 }, | |
168 | }, { | |
169 | .frequency = 300000000, | |
170 | .vcocap = 0x3, | |
c57997bc | 171 | .filter = 0x0, |
459cc2c6 TR |
172 | .ichpmp = 0x6, |
173 | .loadadj = 0x3, | |
c57997bc TR |
174 | .tmds_termadj = 0x9, |
175 | .tx_pu_value = 0x66, | |
176 | .bg_temp_coef = 0x3, | |
177 | .bg_vref_level = 0xf, | |
178 | .avdd10_level = 0x4, | |
179 | .avdd14_level = 0x4, | |
180 | .sparepll = 0x0, | |
459cc2c6 TR |
181 | .drive_current = { 0x30, 0x37, 0x37, 0x37 }, |
182 | .preemphasis = { 0x10, 0x3e, 0x3e, 0x3e }, | |
183 | }, { | |
184 | .frequency = 600000000, | |
185 | .vcocap = 0x3, | |
c57997bc | 186 | .filter = 0x0, |
459cc2c6 TR |
187 | .ichpmp = 0xa, |
188 | .loadadj = 0x3, | |
c57997bc TR |
189 | .tmds_termadj = 0xb, |
190 | .tx_pu_value = 0x66, | |
191 | .bg_temp_coef = 0x3, | |
192 | .bg_vref_level = 0xe, | |
193 | .avdd10_level = 0x4, | |
194 | .avdd14_level = 0x4, | |
195 | .sparepll = 0x0, | |
459cc2c6 TR |
196 | .drive_current = { 0x35, 0x3e, 0x3e, 0x3e }, |
197 | .preemphasis = { 0x02, 0x3f, 0x3f, 0x3f }, | |
198 | }, | |
199 | }; | |
200 | #endif | |
201 | ||
c57997bc TR |
202 | static const struct tegra_sor_hdmi_settings tegra186_sor_hdmi_defaults[] = { |
203 | { | |
204 | .frequency = 54000000, | |
205 | .vcocap = 0, | |
206 | .filter = 5, | |
207 | .ichpmp = 5, | |
208 | .loadadj = 3, | |
209 | .tmds_termadj = 0xf, | |
210 | .tx_pu_value = 0, | |
211 | .bg_temp_coef = 3, | |
212 | .bg_vref_level = 8, | |
213 | .avdd10_level = 4, | |
214 | .avdd14_level = 4, | |
215 | .sparepll = 0x54, | |
216 | .drive_current = { 0x3a, 0x3a, 0x3a, 0x33 }, | |
217 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
218 | }, { | |
219 | .frequency = 75000000, | |
220 | .vcocap = 1, | |
221 | .filter = 5, | |
222 | .ichpmp = 5, | |
223 | .loadadj = 3, | |
224 | .tmds_termadj = 0xf, | |
225 | .tx_pu_value = 0, | |
226 | .bg_temp_coef = 3, | |
227 | .bg_vref_level = 8, | |
228 | .avdd10_level = 4, | |
229 | .avdd14_level = 4, | |
230 | .sparepll = 0x44, | |
231 | .drive_current = { 0x3a, 0x3a, 0x3a, 0x33 }, | |
232 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
233 | }, { | |
234 | .frequency = 150000000, | |
235 | .vcocap = 3, | |
236 | .filter = 5, | |
237 | .ichpmp = 5, | |
238 | .loadadj = 3, | |
239 | .tmds_termadj = 15, | |
240 | .tx_pu_value = 0x66 /* 0 */, | |
241 | .bg_temp_coef = 3, | |
242 | .bg_vref_level = 8, | |
243 | .avdd10_level = 4, | |
244 | .avdd14_level = 4, | |
245 | .sparepll = 0x00, /* 0x34 */ | |
246 | .drive_current = { 0x3a, 0x3a, 0x3a, 0x37 }, | |
247 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
248 | }, { | |
249 | .frequency = 300000000, | |
250 | .vcocap = 3, | |
251 | .filter = 5, | |
252 | .ichpmp = 5, | |
253 | .loadadj = 3, | |
254 | .tmds_termadj = 15, | |
255 | .tx_pu_value = 64, | |
256 | .bg_temp_coef = 3, | |
257 | .bg_vref_level = 8, | |
258 | .avdd10_level = 4, | |
259 | .avdd14_level = 4, | |
260 | .sparepll = 0x34, | |
261 | .drive_current = { 0x3d, 0x3d, 0x3d, 0x33 }, | |
262 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
263 | }, { | |
264 | .frequency = 600000000, | |
265 | .vcocap = 3, | |
266 | .filter = 5, | |
267 | .ichpmp = 5, | |
268 | .loadadj = 3, | |
269 | .tmds_termadj = 12, | |
270 | .tx_pu_value = 96, | |
271 | .bg_temp_coef = 3, | |
272 | .bg_vref_level = 8, | |
273 | .avdd10_level = 4, | |
274 | .avdd14_level = 4, | |
275 | .sparepll = 0x34, | |
276 | .drive_current = { 0x3d, 0x3d, 0x3d, 0x33 }, | |
277 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
278 | } | |
279 | }; | |
280 | ||
9b6c14b8 TR |
281 | static const struct tegra_sor_hdmi_settings tegra194_sor_hdmi_defaults[] = { |
282 | { | |
283 | .frequency = 54000000, | |
284 | .vcocap = 0, | |
285 | .filter = 5, | |
286 | .ichpmp = 5, | |
287 | .loadadj = 3, | |
288 | .tmds_termadj = 0xf, | |
289 | .tx_pu_value = 0, | |
290 | .bg_temp_coef = 3, | |
291 | .bg_vref_level = 8, | |
292 | .avdd10_level = 4, | |
293 | .avdd14_level = 4, | |
294 | .sparepll = 0x54, | |
295 | .drive_current = { 0x3a, 0x3a, 0x3a, 0x33 }, | |
296 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
297 | }, { | |
298 | .frequency = 75000000, | |
299 | .vcocap = 1, | |
300 | .filter = 5, | |
301 | .ichpmp = 5, | |
302 | .loadadj = 3, | |
303 | .tmds_termadj = 0xf, | |
304 | .tx_pu_value = 0, | |
305 | .bg_temp_coef = 3, | |
306 | .bg_vref_level = 8, | |
307 | .avdd10_level = 4, | |
308 | .avdd14_level = 4, | |
309 | .sparepll = 0x44, | |
310 | .drive_current = { 0x3a, 0x3a, 0x3a, 0x33 }, | |
311 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
312 | }, { | |
313 | .frequency = 150000000, | |
314 | .vcocap = 3, | |
315 | .filter = 5, | |
316 | .ichpmp = 5, | |
317 | .loadadj = 3, | |
318 | .tmds_termadj = 15, | |
319 | .tx_pu_value = 0x66 /* 0 */, | |
320 | .bg_temp_coef = 3, | |
321 | .bg_vref_level = 8, | |
322 | .avdd10_level = 4, | |
323 | .avdd14_level = 4, | |
324 | .sparepll = 0x00, /* 0x34 */ | |
325 | .drive_current = { 0x3a, 0x3a, 0x3a, 0x37 }, | |
326 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
327 | }, { | |
328 | .frequency = 300000000, | |
329 | .vcocap = 3, | |
330 | .filter = 5, | |
331 | .ichpmp = 5, | |
332 | .loadadj = 3, | |
333 | .tmds_termadj = 15, | |
334 | .tx_pu_value = 64, | |
335 | .bg_temp_coef = 3, | |
336 | .bg_vref_level = 8, | |
337 | .avdd10_level = 4, | |
338 | .avdd14_level = 4, | |
339 | .sparepll = 0x34, | |
340 | .drive_current = { 0x3d, 0x3d, 0x3d, 0x33 }, | |
341 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
342 | }, { | |
343 | .frequency = 600000000, | |
344 | .vcocap = 3, | |
345 | .filter = 5, | |
346 | .ichpmp = 5, | |
347 | .loadadj = 3, | |
348 | .tmds_termadj = 12, | |
349 | .tx_pu_value = 96, | |
350 | .bg_temp_coef = 3, | |
351 | .bg_vref_level = 8, | |
352 | .avdd10_level = 4, | |
353 | .avdd14_level = 4, | |
354 | .sparepll = 0x34, | |
355 | .drive_current = { 0x3d, 0x3d, 0x3d, 0x33 }, | |
356 | .preemphasis = { 0x00, 0x00, 0x00, 0x00 }, | |
357 | } | |
358 | }; | |
359 | ||
880cee0b TR |
360 | struct tegra_sor_regs { |
361 | unsigned int head_state0; | |
362 | unsigned int head_state1; | |
363 | unsigned int head_state2; | |
364 | unsigned int head_state3; | |
365 | unsigned int head_state4; | |
366 | unsigned int head_state5; | |
367 | unsigned int pll0; | |
368 | unsigned int pll1; | |
369 | unsigned int pll2; | |
370 | unsigned int pll3; | |
371 | unsigned int dp_padctl0; | |
372 | unsigned int dp_padctl2; | |
373 | }; | |
374 | ||
459cc2c6 | 375 | struct tegra_sor_soc { |
459cc2c6 TR |
376 | bool supports_lvds; |
377 | bool supports_hdmi; | |
378 | bool supports_dp; | |
d278e4a9 TR |
379 | bool supports_audio; |
380 | bool supports_hdcp; | |
459cc2c6 | 381 | |
880cee0b | 382 | const struct tegra_sor_regs *regs; |
c57997bc | 383 | bool has_nvdisplay; |
880cee0b | 384 | |
459cc2c6 TR |
385 | const struct tegra_sor_hdmi_settings *settings; |
386 | unsigned int num_settings; | |
30b49435 TR |
387 | |
388 | const u8 *xbar_cfg; | |
c1763937 TR |
389 | const u8 *lane_map; |
390 | ||
391 | const u8 (*voltage_swing)[4][4]; | |
392 | const u8 (*pre_emphasis)[4][4]; | |
393 | const u8 (*post_cursor)[4][4]; | |
394 | const u8 (*tx_pu)[4][4]; | |
459cc2c6 TR |
395 | }; |
396 | ||
397 | struct tegra_sor; | |
398 | ||
399 | struct tegra_sor_ops { | |
400 | const char *name; | |
401 | int (*probe)(struct tegra_sor *sor); | |
85d0c4b5 TR |
402 | void (*audio_enable)(struct tegra_sor *sor); |
403 | void (*audio_disable)(struct tegra_sor *sor); | |
459cc2c6 TR |
404 | }; |
405 | ||
6b6b6042 TR |
406 | struct tegra_sor { |
407 | struct host1x_client client; | |
408 | struct tegra_output output; | |
409 | struct device *dev; | |
410 | ||
459cc2c6 | 411 | const struct tegra_sor_soc *soc; |
6b6b6042 | 412 | void __iomem *regs; |
c57997bc | 413 | unsigned int index; |
8e2988a7 | 414 | unsigned int irq; |
6b6b6042 TR |
415 | |
416 | struct reset_control *rst; | |
417 | struct clk *clk_parent; | |
418 | struct clk *clk_safe; | |
e1335e2f TR |
419 | struct clk *clk_out; |
420 | struct clk *clk_pad; | |
6b6b6042 TR |
421 | struct clk *clk_dp; |
422 | struct clk *clk; | |
423 | ||
6d6c815d TR |
424 | u8 xbar_cfg[5]; |
425 | ||
c1763937 | 426 | struct drm_dp_link link; |
9542c237 | 427 | struct drm_dp_aux *aux; |
6b6b6042 | 428 | |
dab16336 | 429 | struct drm_info_list *debugfs_files; |
459cc2c6 TR |
430 | |
431 | const struct tegra_sor_ops *ops; | |
c57997bc | 432 | enum tegra_io_pad pad; |
459cc2c6 TR |
433 | |
434 | /* for HDMI 2.0 */ | |
435 | struct tegra_sor_hdmi_settings *settings; | |
436 | unsigned int num_settings; | |
437 | ||
438 | struct regulator *avdd_io_supply; | |
439 | struct regulator *vdd_pll_supply; | |
440 | struct regulator *hdmi_supply; | |
36e90221 TR |
441 | |
442 | struct delayed_work scdc; | |
443 | bool scdc_enabled; | |
8e2988a7 | 444 | |
fad7b806 | 445 | struct tegra_hda_format format; |
6b6b6042 TR |
446 | }; |
447 | ||
c31efa7a TR |
448 | struct tegra_sor_state { |
449 | struct drm_connector_state base; | |
450 | ||
36e90221 TR |
451 | unsigned int link_speed; |
452 | unsigned long pclk; | |
c31efa7a TR |
453 | unsigned int bpc; |
454 | }; | |
455 | ||
456 | static inline struct tegra_sor_state * | |
457 | to_sor_state(struct drm_connector_state *state) | |
458 | { | |
459 | return container_of(state, struct tegra_sor_state, base); | |
460 | } | |
461 | ||
34fa183b TR |
462 | struct tegra_sor_config { |
463 | u32 bits_per_pixel; | |
464 | ||
465 | u32 active_polarity; | |
466 | u32 active_count; | |
467 | u32 tu_size; | |
468 | u32 active_frac; | |
469 | u32 watermark; | |
7890b576 TR |
470 | |
471 | u32 hblank_symbols; | |
472 | u32 vblank_symbols; | |
34fa183b TR |
473 | }; |
474 | ||
6b6b6042 TR |
475 | static inline struct tegra_sor * |
476 | host1x_client_to_sor(struct host1x_client *client) | |
477 | { | |
478 | return container_of(client, struct tegra_sor, client); | |
479 | } | |
480 | ||
481 | static inline struct tegra_sor *to_sor(struct tegra_output *output) | |
482 | { | |
483 | return container_of(output, struct tegra_sor, output); | |
484 | } | |
485 | ||
5c5f1301 | 486 | static inline u32 tegra_sor_readl(struct tegra_sor *sor, unsigned int offset) |
6b6b6042 | 487 | { |
932f6529 TR |
488 | u32 value = readl(sor->regs + (offset << 2)); |
489 | ||
490 | trace_sor_readl(sor->dev, offset, value); | |
491 | ||
492 | return value; | |
6b6b6042 TR |
493 | } |
494 | ||
28fe2076 | 495 | static inline void tegra_sor_writel(struct tegra_sor *sor, u32 value, |
5c5f1301 | 496 | unsigned int offset) |
6b6b6042 | 497 | { |
932f6529 | 498 | trace_sor_writel(sor->dev, offset, value); |
6b6b6042 TR |
499 | writel(value, sor->regs + (offset << 2)); |
500 | } | |
501 | ||
25bb2cec TR |
502 | static int tegra_sor_set_parent_clock(struct tegra_sor *sor, struct clk *parent) |
503 | { | |
504 | int err; | |
505 | ||
506 | clk_disable_unprepare(sor->clk); | |
507 | ||
e1335e2f | 508 | err = clk_set_parent(sor->clk_out, parent); |
25bb2cec TR |
509 | if (err < 0) |
510 | return err; | |
511 | ||
512 | err = clk_prepare_enable(sor->clk); | |
513 | if (err < 0) | |
514 | return err; | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
e1335e2f | 519 | struct tegra_clk_sor_pad { |
b299221c TR |
520 | struct clk_hw hw; |
521 | struct tegra_sor *sor; | |
522 | }; | |
523 | ||
e1335e2f | 524 | static inline struct tegra_clk_sor_pad *to_pad(struct clk_hw *hw) |
b299221c | 525 | { |
e1335e2f | 526 | return container_of(hw, struct tegra_clk_sor_pad, hw); |
b299221c TR |
527 | } |
528 | ||
4bdf4710 TR |
529 | static const char * const tegra_clk_sor_pad_parents[2][2] = { |
530 | { "pll_d_out0", "pll_dp" }, | |
531 | { "pll_d2_out0", "pll_dp" }, | |
b299221c TR |
532 | }; |
533 | ||
61417aaa TR |
534 | /* |
535 | * Implementing ->set_parent() here isn't really required because the parent | |
536 | * will be explicitly selected in the driver code via the DP_CLK_SEL mux in | |
537 | * the SOR_CLK_CNTRL register. This is primarily for compatibility with the | |
538 | * Tegra186 and later SoC generations where the BPMP implements this clock | |
539 | * and doesn't expose the mux via the common clock framework. | |
540 | */ | |
541 | ||
e1335e2f | 542 | static int tegra_clk_sor_pad_set_parent(struct clk_hw *hw, u8 index) |
b299221c | 543 | { |
e1335e2f TR |
544 | struct tegra_clk_sor_pad *pad = to_pad(hw); |
545 | struct tegra_sor *sor = pad->sor; | |
b299221c TR |
546 | u32 value; |
547 | ||
548 | value = tegra_sor_readl(sor, SOR_CLK_CNTRL); | |
549 | value &= ~SOR_CLK_CNTRL_DP_CLK_SEL_MASK; | |
550 | ||
551 | switch (index) { | |
552 | case 0: | |
553 | value |= SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_PCLK; | |
554 | break; | |
555 | ||
556 | case 1: | |
557 | value |= SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_DPCLK; | |
558 | break; | |
559 | } | |
560 | ||
561 | tegra_sor_writel(sor, value, SOR_CLK_CNTRL); | |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
e1335e2f | 566 | static u8 tegra_clk_sor_pad_get_parent(struct clk_hw *hw) |
b299221c | 567 | { |
e1335e2f TR |
568 | struct tegra_clk_sor_pad *pad = to_pad(hw); |
569 | struct tegra_sor *sor = pad->sor; | |
b299221c TR |
570 | u8 parent = U8_MAX; |
571 | u32 value; | |
572 | ||
573 | value = tegra_sor_readl(sor, SOR_CLK_CNTRL); | |
574 | ||
575 | switch (value & SOR_CLK_CNTRL_DP_CLK_SEL_MASK) { | |
576 | case SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_PCLK: | |
577 | case SOR_CLK_CNTRL_DP_CLK_SEL_DIFF_PCLK: | |
578 | parent = 0; | |
579 | break; | |
580 | ||
581 | case SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_DPCLK: | |
582 | case SOR_CLK_CNTRL_DP_CLK_SEL_DIFF_DPCLK: | |
583 | parent = 1; | |
584 | break; | |
585 | } | |
586 | ||
587 | return parent; | |
588 | } | |
589 | ||
e1335e2f | 590 | static const struct clk_ops tegra_clk_sor_pad_ops = { |
3867497d | 591 | .determine_rate = clk_hw_determine_rate_no_reparent, |
e1335e2f TR |
592 | .set_parent = tegra_clk_sor_pad_set_parent, |
593 | .get_parent = tegra_clk_sor_pad_get_parent, | |
b299221c TR |
594 | }; |
595 | ||
e1335e2f TR |
596 | static struct clk *tegra_clk_sor_pad_register(struct tegra_sor *sor, |
597 | const char *name) | |
b299221c | 598 | { |
e1335e2f | 599 | struct tegra_clk_sor_pad *pad; |
b299221c TR |
600 | struct clk_init_data init; |
601 | struct clk *clk; | |
602 | ||
e1335e2f TR |
603 | pad = devm_kzalloc(sor->dev, sizeof(*pad), GFP_KERNEL); |
604 | if (!pad) | |
b299221c TR |
605 | return ERR_PTR(-ENOMEM); |
606 | ||
e1335e2f | 607 | pad->sor = sor; |
b299221c TR |
608 | |
609 | init.name = name; | |
610 | init.flags = 0; | |
4bdf4710 TR |
611 | init.parent_names = tegra_clk_sor_pad_parents[sor->index]; |
612 | init.num_parents = ARRAY_SIZE(tegra_clk_sor_pad_parents[sor->index]); | |
e1335e2f | 613 | init.ops = &tegra_clk_sor_pad_ops; |
b299221c | 614 | |
e1335e2f | 615 | pad->hw.init = &init; |
b299221c | 616 | |
e1335e2f | 617 | clk = devm_clk_register(sor->dev, &pad->hw); |
b299221c TR |
618 | |
619 | return clk; | |
620 | } | |
621 | ||
c9533131 TR |
622 | static void tegra_sor_filter_rates(struct tegra_sor *sor) |
623 | { | |
624 | struct drm_dp_link *link = &sor->link; | |
625 | unsigned int i; | |
626 | ||
627 | /* Tegra only supports RBR, HBR and HBR2 */ | |
628 | for (i = 0; i < link->num_rates; i++) { | |
629 | switch (link->rates[i]) { | |
630 | case 1620000: | |
631 | case 2700000: | |
632 | case 5400000: | |
633 | break; | |
634 | ||
635 | default: | |
636 | DRM_DEBUG_KMS("link rate %lu kHz not supported\n", | |
637 | link->rates[i]); | |
638 | link->rates[i] = 0; | |
639 | break; | |
640 | } | |
641 | } | |
642 | ||
643 | drm_dp_link_update_rates(link); | |
644 | } | |
645 | ||
c1763937 | 646 | static int tegra_sor_power_up_lanes(struct tegra_sor *sor, unsigned int lanes) |
6b6b6042 | 647 | { |
c1763937 | 648 | unsigned long timeout; |
28fe2076 | 649 | u32 value; |
6b6b6042 | 650 | |
c1763937 TR |
651 | /* |
652 | * Clear or set the PD_TXD bit corresponding to each lane, depending | |
653 | * on whether it is used or not. | |
654 | */ | |
655 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); | |
6b6b6042 | 656 | |
c1763937 TR |
657 | if (lanes <= 2) |
658 | value &= ~(SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[3]) | | |
659 | SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[2])); | |
660 | else | |
661 | value |= SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[3]) | | |
662 | SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[2]); | |
663 | ||
664 | if (lanes <= 1) | |
665 | value &= ~SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[1]); | |
666 | else | |
667 | value |= SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[1]); | |
668 | ||
669 | if (lanes == 0) | |
670 | value &= ~SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[0]); | |
671 | else | |
672 | value |= SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[0]); | |
673 | ||
674 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); | |
675 | ||
676 | /* start lane sequencer */ | |
677 | value = SOR_LANE_SEQ_CTL_TRIGGER | SOR_LANE_SEQ_CTL_SEQUENCE_DOWN | | |
678 | SOR_LANE_SEQ_CTL_POWER_STATE_UP; | |
679 | tegra_sor_writel(sor, value, SOR_LANE_SEQ_CTL); | |
680 | ||
681 | timeout = jiffies + msecs_to_jiffies(250); | |
682 | ||
683 | while (time_before(jiffies, timeout)) { | |
684 | value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL); | |
685 | if ((value & SOR_LANE_SEQ_CTL_TRIGGER) == 0) | |
686 | break; | |
687 | ||
688 | usleep_range(250, 1000); | |
689 | } | |
690 | ||
691 | if ((value & SOR_LANE_SEQ_CTL_TRIGGER) != 0) | |
692 | return -ETIMEDOUT; | |
6b6b6042 | 693 | |
c1763937 TR |
694 | return 0; |
695 | } | |
6b6b6042 | 696 | |
c1763937 TR |
697 | static int tegra_sor_power_down_lanes(struct tegra_sor *sor) |
698 | { | |
699 | unsigned long timeout; | |
700 | u32 value; | |
6b6b6042 | 701 | |
c1763937 | 702 | /* power down all lanes */ |
880cee0b | 703 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); |
c1763937 TR |
704 | value &= ~(SOR_DP_PADCTL_PD_TXD_3 | SOR_DP_PADCTL_PD_TXD_0 | |
705 | SOR_DP_PADCTL_PD_TXD_1 | SOR_DP_PADCTL_PD_TXD_2); | |
880cee0b | 706 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); |
6b6b6042 | 707 | |
c1763937 TR |
708 | /* start lane sequencer */ |
709 | value = SOR_LANE_SEQ_CTL_TRIGGER | SOR_LANE_SEQ_CTL_SEQUENCE_UP | | |
710 | SOR_LANE_SEQ_CTL_POWER_STATE_DOWN; | |
711 | tegra_sor_writel(sor, value, SOR_LANE_SEQ_CTL); | |
712 | ||
713 | timeout = jiffies + msecs_to_jiffies(250); | |
714 | ||
715 | while (time_before(jiffies, timeout)) { | |
716 | value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL); | |
717 | if ((value & SOR_LANE_SEQ_CTL_TRIGGER) == 0) | |
718 | break; | |
719 | ||
720 | usleep_range(25, 100); | |
721 | } | |
722 | ||
723 | if ((value & SOR_LANE_SEQ_CTL_TRIGGER) != 0) | |
724 | return -ETIMEDOUT; | |
725 | ||
726 | return 0; | |
727 | } | |
728 | ||
729 | static void tegra_sor_dp_precharge(struct tegra_sor *sor, unsigned int lanes) | |
730 | { | |
731 | u32 value; | |
732 | ||
733 | /* pre-charge all used lanes */ | |
880cee0b | 734 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); |
c1763937 TR |
735 | |
736 | if (lanes <= 2) | |
737 | value &= ~(SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[3]) | | |
738 | SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[2])); | |
739 | else | |
740 | value |= SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[3]) | | |
741 | SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[2]); | |
742 | ||
743 | if (lanes <= 1) | |
744 | value &= ~SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[1]); | |
745 | else | |
746 | value |= SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[1]); | |
747 | ||
748 | if (lanes == 0) | |
749 | value &= ~SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[0]); | |
750 | else | |
751 | value |= SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[0]); | |
752 | ||
880cee0b | 753 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); |
6b6b6042 | 754 | |
c1763937 | 755 | usleep_range(15, 100); |
6b6b6042 | 756 | |
880cee0b | 757 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); |
6b6b6042 TR |
758 | value &= ~(SOR_DP_PADCTL_CM_TXD_3 | SOR_DP_PADCTL_CM_TXD_2 | |
759 | SOR_DP_PADCTL_CM_TXD_1 | SOR_DP_PADCTL_CM_TXD_0); | |
880cee0b | 760 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); |
c1763937 | 761 | } |
6b6b6042 | 762 | |
c1763937 TR |
763 | static void tegra_sor_dp_term_calibrate(struct tegra_sor *sor) |
764 | { | |
765 | u32 mask = 0x08, adj = 0, value; | |
766 | ||
767 | /* enable pad calibration logic */ | |
768 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); | |
769 | value &= ~SOR_DP_PADCTL_PAD_CAL_PD; | |
770 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); | |
771 | ||
772 | value = tegra_sor_readl(sor, sor->soc->regs->pll1); | |
773 | value |= SOR_PLL1_TMDS_TERM; | |
774 | tegra_sor_writel(sor, value, sor->soc->regs->pll1); | |
775 | ||
776 | while (mask) { | |
777 | adj |= mask; | |
778 | ||
779 | value = tegra_sor_readl(sor, sor->soc->regs->pll1); | |
780 | value &= ~SOR_PLL1_TMDS_TERMADJ_MASK; | |
781 | value |= SOR_PLL1_TMDS_TERMADJ(adj); | |
782 | tegra_sor_writel(sor, value, sor->soc->regs->pll1); | |
6b6b6042 | 783 | |
c1763937 TR |
784 | usleep_range(100, 200); |
785 | ||
786 | value = tegra_sor_readl(sor, sor->soc->regs->pll1); | |
787 | if (value & SOR_PLL1_TERM_COMPOUT) | |
788 | adj &= ~mask; | |
789 | ||
790 | mask >>= 1; | |
6b6b6042 TR |
791 | } |
792 | ||
c1763937 TR |
793 | value = tegra_sor_readl(sor, sor->soc->regs->pll1); |
794 | value &= ~SOR_PLL1_TMDS_TERMADJ_MASK; | |
795 | value |= SOR_PLL1_TMDS_TERMADJ(adj); | |
796 | tegra_sor_writel(sor, value, sor->soc->regs->pll1); | |
6b6b6042 | 797 | |
c1763937 TR |
798 | /* disable pad calibration logic */ |
799 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); | |
800 | value |= SOR_DP_PADCTL_PAD_CAL_PD; | |
801 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); | |
802 | } | |
6b6b6042 | 803 | |
c1763937 TR |
804 | static int tegra_sor_dp_link_apply_training(struct drm_dp_link *link) |
805 | { | |
806 | struct tegra_sor *sor = container_of(link, struct tegra_sor, link); | |
807 | u32 voltage_swing = 0, pre_emphasis = 0, post_cursor = 0; | |
808 | const struct tegra_sor_soc *soc = sor->soc; | |
809 | u32 pattern = 0, tx_pu = 0, value; | |
810 | unsigned int i; | |
6b6b6042 | 811 | |
c1763937 TR |
812 | for (value = 0, i = 0; i < link->lanes; i++) { |
813 | u8 vs = link->train.request.voltage_swing[i]; | |
814 | u8 pe = link->train.request.pre_emphasis[i]; | |
815 | u8 pc = link->train.request.post_cursor[i]; | |
816 | u8 shift = sor->soc->lane_map[i] << 3; | |
817 | ||
818 | voltage_swing |= soc->voltage_swing[pc][vs][pe] << shift; | |
819 | pre_emphasis |= soc->pre_emphasis[pc][vs][pe] << shift; | |
820 | post_cursor |= soc->post_cursor[pc][vs][pe] << shift; | |
821 | ||
822 | if (sor->soc->tx_pu[pc][vs][pe] > tx_pu) | |
823 | tx_pu = sor->soc->tx_pu[pc][vs][pe]; | |
824 | ||
825 | switch (link->train.pattern) { | |
826 | case DP_TRAINING_PATTERN_DISABLE: | |
827 | value = SOR_DP_TPG_SCRAMBLER_GALIOS | | |
828 | SOR_DP_TPG_PATTERN_NONE; | |
829 | break; | |
830 | ||
831 | case DP_TRAINING_PATTERN_1: | |
832 | value = SOR_DP_TPG_SCRAMBLER_NONE | | |
833 | SOR_DP_TPG_PATTERN_TRAIN1; | |
834 | break; | |
835 | ||
836 | case DP_TRAINING_PATTERN_2: | |
837 | value = SOR_DP_TPG_SCRAMBLER_NONE | | |
838 | SOR_DP_TPG_PATTERN_TRAIN2; | |
839 | break; | |
6b6b6042 | 840 | |
c1763937 TR |
841 | case DP_TRAINING_PATTERN_3: |
842 | value = SOR_DP_TPG_SCRAMBLER_NONE | | |
843 | SOR_DP_TPG_PATTERN_TRAIN3; | |
844 | break; | |
845 | ||
846 | default: | |
847 | return -EINVAL; | |
848 | } | |
849 | ||
850 | if (link->caps.channel_coding) | |
851 | value |= SOR_DP_TPG_CHANNEL_CODING; | |
852 | ||
853 | pattern = pattern << 8 | value; | |
6b6b6042 TR |
854 | } |
855 | ||
c1763937 TR |
856 | tegra_sor_writel(sor, voltage_swing, SOR_LANE_DRIVE_CURRENT0); |
857 | tegra_sor_writel(sor, pre_emphasis, SOR_LANE_PREEMPHASIS0); | |
6b6b6042 | 858 | |
c1763937 TR |
859 | if (link->caps.tps3_supported) |
860 | tegra_sor_writel(sor, post_cursor, SOR_LANE_POSTCURSOR0); | |
6b6b6042 | 861 | |
c1763937 TR |
862 | tegra_sor_writel(sor, pattern, SOR_DP_TPG); |
863 | ||
864 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); | |
865 | value &= ~SOR_DP_PADCTL_TX_PU_MASK; | |
866 | value |= SOR_DP_PADCTL_TX_PU_ENABLE; | |
867 | value |= SOR_DP_PADCTL_TX_PU(tx_pu); | |
868 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); | |
869 | ||
870 | usleep_range(20, 100); | |
6b6b6042 | 871 | |
c1763937 TR |
872 | return 0; |
873 | } | |
874 | ||
875 | static int tegra_sor_dp_link_configure(struct drm_dp_link *link) | |
876 | { | |
877 | struct tegra_sor *sor = container_of(link, struct tegra_sor, link); | |
878 | unsigned int rate, lanes; | |
879 | u32 value; | |
880 | int err; | |
881 | ||
882 | rate = drm_dp_link_rate_to_bw_code(link->rate); | |
883 | lanes = link->lanes; | |
884 | ||
885 | /* configure link speed and lane count */ | |
886 | value = tegra_sor_readl(sor, SOR_CLK_CNTRL); | |
887 | value &= ~SOR_CLK_CNTRL_DP_LINK_SPEED_MASK; | |
888 | value |= SOR_CLK_CNTRL_DP_LINK_SPEED(rate); | |
889 | tegra_sor_writel(sor, value, SOR_CLK_CNTRL); | |
890 | ||
891 | value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); | |
892 | value &= ~SOR_DP_LINKCTL_LANE_COUNT_MASK; | |
893 | value |= SOR_DP_LINKCTL_LANE_COUNT(lanes); | |
894 | ||
895 | if (link->caps.enhanced_framing) | |
896 | value |= SOR_DP_LINKCTL_ENHANCED_FRAME; | |
897 | ||
898 | tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); | |
899 | ||
900 | usleep_range(400, 1000); | |
901 | ||
902 | /* configure load pulse position adjustment */ | |
903 | value = tegra_sor_readl(sor, sor->soc->regs->pll1); | |
904 | value &= ~SOR_PLL1_LOADADJ_MASK; | |
905 | ||
906 | switch (rate) { | |
907 | case DP_LINK_BW_1_62: | |
908 | value |= SOR_PLL1_LOADADJ(0x3); | |
909 | break; | |
910 | ||
911 | case DP_LINK_BW_2_7: | |
912 | value |= SOR_PLL1_LOADADJ(0x4); | |
913 | break; | |
914 | ||
915 | case DP_LINK_BW_5_4: | |
916 | value |= SOR_PLL1_LOADADJ(0x6); | |
917 | break; | |
6b6b6042 TR |
918 | } |
919 | ||
c1763937 | 920 | tegra_sor_writel(sor, value, sor->soc->regs->pll1); |
6b6b6042 | 921 | |
c1763937 TR |
922 | /* use alternate scrambler reset for eDP */ |
923 | value = tegra_sor_readl(sor, SOR_DP_SPARE0); | |
6b6b6042 | 924 | |
c1763937 TR |
925 | if (link->edp == 0) |
926 | value &= ~SOR_DP_SPARE_PANEL_INTERNAL; | |
927 | else | |
928 | value |= SOR_DP_SPARE_PANEL_INTERNAL; | |
929 | ||
930 | tegra_sor_writel(sor, value, SOR_DP_SPARE0); | |
931 | ||
932 | err = tegra_sor_power_down_lanes(sor); | |
933 | if (err < 0) { | |
934 | dev_err(sor->dev, "failed to power down lanes: %d\n", err); | |
935 | return err; | |
936 | } | |
937 | ||
938 | /* power up and pre-charge lanes */ | |
939 | err = tegra_sor_power_up_lanes(sor, lanes); | |
940 | if (err < 0) { | |
941 | dev_err(sor->dev, "failed to power up %u lane%s: %d\n", | |
942 | lanes, (lanes != 1) ? "s" : "", err); | |
6b6b6042 | 943 | return err; |
c1763937 TR |
944 | } |
945 | ||
946 | tegra_sor_dp_precharge(sor, lanes); | |
6b6b6042 TR |
947 | |
948 | return 0; | |
949 | } | |
950 | ||
c1763937 TR |
951 | static const struct drm_dp_link_ops tegra_sor_dp_link_ops = { |
952 | .apply_training = tegra_sor_dp_link_apply_training, | |
953 | .configure = tegra_sor_dp_link_configure, | |
954 | }; | |
955 | ||
6b6b6042 TR |
956 | static void tegra_sor_super_update(struct tegra_sor *sor) |
957 | { | |
a9a9e4fd TR |
958 | tegra_sor_writel(sor, 0, SOR_SUPER_STATE0); |
959 | tegra_sor_writel(sor, 1, SOR_SUPER_STATE0); | |
960 | tegra_sor_writel(sor, 0, SOR_SUPER_STATE0); | |
6b6b6042 TR |
961 | } |
962 | ||
963 | static void tegra_sor_update(struct tegra_sor *sor) | |
964 | { | |
a9a9e4fd TR |
965 | tegra_sor_writel(sor, 0, SOR_STATE0); |
966 | tegra_sor_writel(sor, 1, SOR_STATE0); | |
967 | tegra_sor_writel(sor, 0, SOR_STATE0); | |
6b6b6042 TR |
968 | } |
969 | ||
970 | static int tegra_sor_setup_pwm(struct tegra_sor *sor, unsigned long timeout) | |
971 | { | |
28fe2076 | 972 | u32 value; |
6b6b6042 TR |
973 | |
974 | value = tegra_sor_readl(sor, SOR_PWM_DIV); | |
975 | value &= ~SOR_PWM_DIV_MASK; | |
976 | value |= 0x400; /* period */ | |
977 | tegra_sor_writel(sor, value, SOR_PWM_DIV); | |
978 | ||
979 | value = tegra_sor_readl(sor, SOR_PWM_CTL); | |
980 | value &= ~SOR_PWM_CTL_DUTY_CYCLE_MASK; | |
981 | value |= 0x400; /* duty cycle */ | |
982 | value &= ~SOR_PWM_CTL_CLK_SEL; /* clock source: PCLK */ | |
983 | value |= SOR_PWM_CTL_TRIGGER; | |
984 | tegra_sor_writel(sor, value, SOR_PWM_CTL); | |
985 | ||
986 | timeout = jiffies + msecs_to_jiffies(timeout); | |
987 | ||
988 | while (time_before(jiffies, timeout)) { | |
989 | value = tegra_sor_readl(sor, SOR_PWM_CTL); | |
990 | if ((value & SOR_PWM_CTL_TRIGGER) == 0) | |
991 | return 0; | |
992 | ||
993 | usleep_range(25, 100); | |
994 | } | |
995 | ||
996 | return -ETIMEDOUT; | |
997 | } | |
998 | ||
999 | static int tegra_sor_attach(struct tegra_sor *sor) | |
1000 | { | |
1001 | unsigned long value, timeout; | |
1002 | ||
1003 | /* wake up in normal mode */ | |
a9a9e4fd | 1004 | value = tegra_sor_readl(sor, SOR_SUPER_STATE1); |
6b6b6042 TR |
1005 | value |= SOR_SUPER_STATE_HEAD_MODE_AWAKE; |
1006 | value |= SOR_SUPER_STATE_MODE_NORMAL; | |
a9a9e4fd | 1007 | tegra_sor_writel(sor, value, SOR_SUPER_STATE1); |
6b6b6042 TR |
1008 | tegra_sor_super_update(sor); |
1009 | ||
1010 | /* attach */ | |
a9a9e4fd | 1011 | value = tegra_sor_readl(sor, SOR_SUPER_STATE1); |
6b6b6042 | 1012 | value |= SOR_SUPER_STATE_ATTACHED; |
a9a9e4fd | 1013 | tegra_sor_writel(sor, value, SOR_SUPER_STATE1); |
6b6b6042 TR |
1014 | tegra_sor_super_update(sor); |
1015 | ||
1016 | timeout = jiffies + msecs_to_jiffies(250); | |
1017 | ||
1018 | while (time_before(jiffies, timeout)) { | |
1019 | value = tegra_sor_readl(sor, SOR_TEST); | |
1020 | if ((value & SOR_TEST_ATTACHED) != 0) | |
1021 | return 0; | |
1022 | ||
1023 | usleep_range(25, 100); | |
1024 | } | |
1025 | ||
1026 | return -ETIMEDOUT; | |
1027 | } | |
1028 | ||
1029 | static int tegra_sor_wakeup(struct tegra_sor *sor) | |
1030 | { | |
6b6b6042 TR |
1031 | unsigned long value, timeout; |
1032 | ||
6b6b6042 TR |
1033 | timeout = jiffies + msecs_to_jiffies(250); |
1034 | ||
1035 | /* wait for head to wake up */ | |
1036 | while (time_before(jiffies, timeout)) { | |
1037 | value = tegra_sor_readl(sor, SOR_TEST); | |
1038 | value &= SOR_TEST_HEAD_MODE_MASK; | |
1039 | ||
1040 | if (value == SOR_TEST_HEAD_MODE_AWAKE) | |
1041 | return 0; | |
1042 | ||
1043 | usleep_range(25, 100); | |
1044 | } | |
1045 | ||
1046 | return -ETIMEDOUT; | |
1047 | } | |
1048 | ||
1049 | static int tegra_sor_power_up(struct tegra_sor *sor, unsigned long timeout) | |
1050 | { | |
28fe2076 | 1051 | u32 value; |
6b6b6042 TR |
1052 | |
1053 | value = tegra_sor_readl(sor, SOR_PWR); | |
1054 | value |= SOR_PWR_TRIGGER | SOR_PWR_NORMAL_STATE_PU; | |
1055 | tegra_sor_writel(sor, value, SOR_PWR); | |
1056 | ||
1057 | timeout = jiffies + msecs_to_jiffies(timeout); | |
1058 | ||
1059 | while (time_before(jiffies, timeout)) { | |
1060 | value = tegra_sor_readl(sor, SOR_PWR); | |
1061 | if ((value & SOR_PWR_TRIGGER) == 0) | |
1062 | return 0; | |
1063 | ||
1064 | usleep_range(25, 100); | |
1065 | } | |
1066 | ||
1067 | return -ETIMEDOUT; | |
1068 | } | |
1069 | ||
34fa183b TR |
1070 | struct tegra_sor_params { |
1071 | /* number of link clocks per line */ | |
1072 | unsigned int num_clocks; | |
1073 | /* ratio between input and output */ | |
1074 | u64 ratio; | |
1075 | /* precision factor */ | |
1076 | u64 precision; | |
1077 | ||
1078 | unsigned int active_polarity; | |
1079 | unsigned int active_count; | |
1080 | unsigned int active_frac; | |
1081 | unsigned int tu_size; | |
1082 | unsigned int error; | |
1083 | }; | |
1084 | ||
1085 | static int tegra_sor_compute_params(struct tegra_sor *sor, | |
1086 | struct tegra_sor_params *params, | |
1087 | unsigned int tu_size) | |
1088 | { | |
1089 | u64 active_sym, active_count, frac, approx; | |
1090 | u32 active_polarity, active_frac = 0; | |
1091 | const u64 f = params->precision; | |
1092 | s64 error; | |
1093 | ||
1094 | active_sym = params->ratio * tu_size; | |
1095 | active_count = div_u64(active_sym, f) * f; | |
1096 | frac = active_sym - active_count; | |
1097 | ||
1098 | /* fraction < 0.5 */ | |
1099 | if (frac >= (f / 2)) { | |
1100 | active_polarity = 1; | |
1101 | frac = f - frac; | |
1102 | } else { | |
1103 | active_polarity = 0; | |
1104 | } | |
1105 | ||
1106 | if (frac != 0) { | |
1107 | frac = div_u64(f * f, frac); /* 1/fraction */ | |
1108 | if (frac <= (15 * f)) { | |
1109 | active_frac = div_u64(frac, f); | |
1110 | ||
1111 | /* round up */ | |
1112 | if (active_polarity) | |
1113 | active_frac++; | |
1114 | } else { | |
1115 | active_frac = active_polarity ? 1 : 15; | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | if (active_frac == 1) | |
1120 | active_polarity = 0; | |
1121 | ||
1122 | if (active_polarity == 1) { | |
1123 | if (active_frac) { | |
1124 | approx = active_count + (active_frac * (f - 1)) * f; | |
1125 | approx = div_u64(approx, active_frac * f); | |
1126 | } else { | |
1127 | approx = active_count + f; | |
1128 | } | |
1129 | } else { | |
1130 | if (active_frac) | |
1131 | approx = active_count + div_u64(f, active_frac); | |
1132 | else | |
1133 | approx = active_count; | |
1134 | } | |
1135 | ||
1136 | error = div_s64(active_sym - approx, tu_size); | |
1137 | error *= params->num_clocks; | |
1138 | ||
79211c8e | 1139 | if (error <= 0 && abs(error) < params->error) { |
34fa183b TR |
1140 | params->active_count = div_u64(active_count, f); |
1141 | params->active_polarity = active_polarity; | |
1142 | params->active_frac = active_frac; | |
79211c8e | 1143 | params->error = abs(error); |
34fa183b TR |
1144 | params->tu_size = tu_size; |
1145 | ||
1146 | if (error == 0) | |
1147 | return true; | |
1148 | } | |
1149 | ||
1150 | return false; | |
1151 | } | |
1152 | ||
a198359e TR |
1153 | static int tegra_sor_compute_config(struct tegra_sor *sor, |
1154 | const struct drm_display_mode *mode, | |
1155 | struct tegra_sor_config *config, | |
1156 | struct drm_dp_link *link) | |
34fa183b TR |
1157 | { |
1158 | const u64 f = 100000, link_rate = link->rate * 1000; | |
2429b3c5 | 1159 | const u64 pclk = (u64)mode->clock * 1000; |
7890b576 | 1160 | u64 input, output, watermark, num; |
34fa183b | 1161 | struct tegra_sor_params params; |
34fa183b TR |
1162 | u32 num_syms_per_line; |
1163 | unsigned int i; | |
1164 | ||
c728e2d4 | 1165 | if (!link_rate || !link->lanes || !pclk || !config->bits_per_pixel) |
34fa183b TR |
1166 | return -EINVAL; |
1167 | ||
34fa183b | 1168 | input = pclk * config->bits_per_pixel; |
c728e2d4 | 1169 | output = link_rate * 8 * link->lanes; |
34fa183b TR |
1170 | |
1171 | if (input >= output) | |
1172 | return -ERANGE; | |
1173 | ||
1174 | memset(¶ms, 0, sizeof(params)); | |
1175 | params.ratio = div64_u64(input * f, output); | |
1176 | params.num_clocks = div_u64(link_rate * mode->hdisplay, pclk); | |
1177 | params.precision = f; | |
1178 | params.error = 64 * f; | |
1179 | params.tu_size = 64; | |
1180 | ||
1181 | for (i = params.tu_size; i >= 32; i--) | |
1182 | if (tegra_sor_compute_params(sor, ¶ms, i)) | |
1183 | break; | |
1184 | ||
1185 | if (params.active_frac == 0) { | |
1186 | config->active_polarity = 0; | |
1187 | config->active_count = params.active_count; | |
1188 | ||
1189 | if (!params.active_polarity) | |
1190 | config->active_count--; | |
1191 | ||
1192 | config->tu_size = params.tu_size; | |
1193 | config->active_frac = 1; | |
1194 | } else { | |
1195 | config->active_polarity = params.active_polarity; | |
1196 | config->active_count = params.active_count; | |
1197 | config->active_frac = params.active_frac; | |
1198 | config->tu_size = params.tu_size; | |
1199 | } | |
1200 | ||
1201 | dev_dbg(sor->dev, | |
1202 | "polarity: %d active count: %d tu size: %d active frac: %d\n", | |
1203 | config->active_polarity, config->active_count, | |
1204 | config->tu_size, config->active_frac); | |
1205 | ||
1206 | watermark = params.ratio * config->tu_size * (f - params.ratio); | |
1207 | watermark = div_u64(watermark, f); | |
1208 | ||
1209 | watermark = div_u64(watermark + params.error, f); | |
1210 | config->watermark = watermark + (config->bits_per_pixel / 8) + 2; | |
1211 | num_syms_per_line = (mode->hdisplay * config->bits_per_pixel) * | |
c728e2d4 | 1212 | (link->lanes * 8); |
34fa183b TR |
1213 | |
1214 | if (config->watermark > 30) { | |
1215 | config->watermark = 30; | |
1216 | dev_err(sor->dev, | |
1217 | "unable to compute TU size, forcing watermark to %u\n", | |
1218 | config->watermark); | |
1219 | } else if (config->watermark > num_syms_per_line) { | |
1220 | config->watermark = num_syms_per_line; | |
1221 | dev_err(sor->dev, "watermark too high, forcing to %u\n", | |
1222 | config->watermark); | |
1223 | } | |
1224 | ||
7890b576 TR |
1225 | /* compute the number of symbols per horizontal blanking interval */ |
1226 | num = ((mode->htotal - mode->hdisplay) - 7) * link_rate; | |
1227 | config->hblank_symbols = div_u64(num, pclk); | |
1228 | ||
27ba465c | 1229 | if (link->caps.enhanced_framing) |
7890b576 TR |
1230 | config->hblank_symbols -= 3; |
1231 | ||
c728e2d4 | 1232 | config->hblank_symbols -= 12 / link->lanes; |
7890b576 TR |
1233 | |
1234 | /* compute the number of symbols per vertical blanking interval */ | |
1235 | num = (mode->hdisplay - 25) * link_rate; | |
1236 | config->vblank_symbols = div_u64(num, pclk); | |
c728e2d4 | 1237 | config->vblank_symbols -= 36 / link->lanes + 4; |
7890b576 TR |
1238 | |
1239 | dev_dbg(sor->dev, "blank symbols: H:%u V:%u\n", config->hblank_symbols, | |
1240 | config->vblank_symbols); | |
1241 | ||
34fa183b TR |
1242 | return 0; |
1243 | } | |
1244 | ||
402f6bcd TR |
1245 | static void tegra_sor_apply_config(struct tegra_sor *sor, |
1246 | const struct tegra_sor_config *config) | |
1247 | { | |
1248 | u32 value; | |
1249 | ||
1250 | value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); | |
1251 | value &= ~SOR_DP_LINKCTL_TU_SIZE_MASK; | |
1252 | value |= SOR_DP_LINKCTL_TU_SIZE(config->tu_size); | |
1253 | tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); | |
1254 | ||
1255 | value = tegra_sor_readl(sor, SOR_DP_CONFIG0); | |
1256 | value &= ~SOR_DP_CONFIG_WATERMARK_MASK; | |
1257 | value |= SOR_DP_CONFIG_WATERMARK(config->watermark); | |
1258 | ||
1259 | value &= ~SOR_DP_CONFIG_ACTIVE_SYM_COUNT_MASK; | |
1260 | value |= SOR_DP_CONFIG_ACTIVE_SYM_COUNT(config->active_count); | |
1261 | ||
1262 | value &= ~SOR_DP_CONFIG_ACTIVE_SYM_FRAC_MASK; | |
1263 | value |= SOR_DP_CONFIG_ACTIVE_SYM_FRAC(config->active_frac); | |
1264 | ||
1265 | if (config->active_polarity) | |
1266 | value |= SOR_DP_CONFIG_ACTIVE_SYM_POLARITY; | |
1267 | else | |
1268 | value &= ~SOR_DP_CONFIG_ACTIVE_SYM_POLARITY; | |
1269 | ||
1270 | value |= SOR_DP_CONFIG_ACTIVE_SYM_ENABLE; | |
1271 | value |= SOR_DP_CONFIG_DISPARITY_NEGATIVE; | |
1272 | tegra_sor_writel(sor, value, SOR_DP_CONFIG0); | |
1273 | ||
1274 | value = tegra_sor_readl(sor, SOR_DP_AUDIO_HBLANK_SYMBOLS); | |
1275 | value &= ~SOR_DP_AUDIO_HBLANK_SYMBOLS_MASK; | |
1276 | value |= config->hblank_symbols & 0xffff; | |
1277 | tegra_sor_writel(sor, value, SOR_DP_AUDIO_HBLANK_SYMBOLS); | |
1278 | ||
1279 | value = tegra_sor_readl(sor, SOR_DP_AUDIO_VBLANK_SYMBOLS); | |
1280 | value &= ~SOR_DP_AUDIO_VBLANK_SYMBOLS_MASK; | |
1281 | value |= config->vblank_symbols & 0xffff; | |
1282 | tegra_sor_writel(sor, value, SOR_DP_AUDIO_VBLANK_SYMBOLS); | |
1283 | } | |
1284 | ||
2bd1dd39 TR |
1285 | static void tegra_sor_mode_set(struct tegra_sor *sor, |
1286 | const struct drm_display_mode *mode, | |
c31efa7a | 1287 | struct tegra_sor_state *state) |
2bd1dd39 TR |
1288 | { |
1289 | struct tegra_dc *dc = to_tegra_dc(sor->output.encoder.crtc); | |
1290 | unsigned int vbe, vse, hbe, hse, vbs, hbs; | |
1291 | u32 value; | |
1292 | ||
1293 | value = tegra_sor_readl(sor, SOR_STATE1); | |
1294 | value &= ~SOR_STATE_ASY_PIXELDEPTH_MASK; | |
1295 | value &= ~SOR_STATE_ASY_CRC_MODE_MASK; | |
1296 | value &= ~SOR_STATE_ASY_OWNER_MASK; | |
1297 | ||
1298 | value |= SOR_STATE_ASY_CRC_MODE_COMPLETE | | |
1299 | SOR_STATE_ASY_OWNER(dc->pipe + 1); | |
1300 | ||
1301 | if (mode->flags & DRM_MODE_FLAG_PHSYNC) | |
1302 | value &= ~SOR_STATE_ASY_HSYNCPOL; | |
1303 | ||
1304 | if (mode->flags & DRM_MODE_FLAG_NHSYNC) | |
1305 | value |= SOR_STATE_ASY_HSYNCPOL; | |
1306 | ||
1307 | if (mode->flags & DRM_MODE_FLAG_PVSYNC) | |
1308 | value &= ~SOR_STATE_ASY_VSYNCPOL; | |
1309 | ||
1310 | if (mode->flags & DRM_MODE_FLAG_NVSYNC) | |
1311 | value |= SOR_STATE_ASY_VSYNCPOL; | |
1312 | ||
c31efa7a TR |
1313 | switch (state->bpc) { |
1314 | case 16: | |
1315 | value |= SOR_STATE_ASY_PIXELDEPTH_BPP_48_444; | |
1316 | break; | |
1317 | ||
1318 | case 12: | |
1319 | value |= SOR_STATE_ASY_PIXELDEPTH_BPP_36_444; | |
1320 | break; | |
1321 | ||
1322 | case 10: | |
1323 | value |= SOR_STATE_ASY_PIXELDEPTH_BPP_30_444; | |
1324 | break; | |
1325 | ||
2bd1dd39 TR |
1326 | case 8: |
1327 | value |= SOR_STATE_ASY_PIXELDEPTH_BPP_24_444; | |
1328 | break; | |
1329 | ||
1330 | case 6: | |
1331 | value |= SOR_STATE_ASY_PIXELDEPTH_BPP_18_444; | |
1332 | break; | |
1333 | ||
1334 | default: | |
c31efa7a | 1335 | value |= SOR_STATE_ASY_PIXELDEPTH_BPP_24_444; |
2bd1dd39 TR |
1336 | break; |
1337 | } | |
1338 | ||
1339 | tegra_sor_writel(sor, value, SOR_STATE1); | |
1340 | ||
1341 | /* | |
1342 | * TODO: The video timing programming below doesn't seem to match the | |
1343 | * register definitions. | |
1344 | */ | |
1345 | ||
1346 | value = ((mode->vtotal & 0x7fff) << 16) | (mode->htotal & 0x7fff); | |
880cee0b | 1347 | tegra_sor_writel(sor, value, sor->soc->regs->head_state1 + dc->pipe); |
2bd1dd39 TR |
1348 | |
1349 | /* sync end = sync width - 1 */ | |
1350 | vse = mode->vsync_end - mode->vsync_start - 1; | |
1351 | hse = mode->hsync_end - mode->hsync_start - 1; | |
1352 | ||
1353 | value = ((vse & 0x7fff) << 16) | (hse & 0x7fff); | |
880cee0b | 1354 | tegra_sor_writel(sor, value, sor->soc->regs->head_state2 + dc->pipe); |
2bd1dd39 TR |
1355 | |
1356 | /* blank end = sync end + back porch */ | |
1357 | vbe = vse + (mode->vtotal - mode->vsync_end); | |
1358 | hbe = hse + (mode->htotal - mode->hsync_end); | |
1359 | ||
1360 | value = ((vbe & 0x7fff) << 16) | (hbe & 0x7fff); | |
880cee0b | 1361 | tegra_sor_writel(sor, value, sor->soc->regs->head_state3 + dc->pipe); |
2bd1dd39 TR |
1362 | |
1363 | /* blank start = blank end + active */ | |
1364 | vbs = vbe + mode->vdisplay; | |
1365 | hbs = hbe + mode->hdisplay; | |
1366 | ||
1367 | value = ((vbs & 0x7fff) << 16) | (hbs & 0x7fff); | |
880cee0b | 1368 | tegra_sor_writel(sor, value, sor->soc->regs->head_state4 + dc->pipe); |
2bd1dd39 TR |
1369 | |
1370 | /* XXX interlacing support */ | |
880cee0b | 1371 | tegra_sor_writel(sor, 0x001, sor->soc->regs->head_state5 + dc->pipe); |
2bd1dd39 TR |
1372 | } |
1373 | ||
6fad8f66 TR |
1374 | static int tegra_sor_detach(struct tegra_sor *sor) |
1375 | { | |
1376 | unsigned long value, timeout; | |
1377 | ||
1378 | /* switch to safe mode */ | |
a9a9e4fd | 1379 | value = tegra_sor_readl(sor, SOR_SUPER_STATE1); |
6fad8f66 | 1380 | value &= ~SOR_SUPER_STATE_MODE_NORMAL; |
a9a9e4fd | 1381 | tegra_sor_writel(sor, value, SOR_SUPER_STATE1); |
6fad8f66 TR |
1382 | tegra_sor_super_update(sor); |
1383 | ||
1384 | timeout = jiffies + msecs_to_jiffies(250); | |
1385 | ||
1386 | while (time_before(jiffies, timeout)) { | |
1387 | value = tegra_sor_readl(sor, SOR_PWR); | |
1388 | if (value & SOR_PWR_MODE_SAFE) | |
1389 | break; | |
1390 | } | |
1391 | ||
1392 | if ((value & SOR_PWR_MODE_SAFE) == 0) | |
1393 | return -ETIMEDOUT; | |
1394 | ||
1395 | /* go to sleep */ | |
a9a9e4fd | 1396 | value = tegra_sor_readl(sor, SOR_SUPER_STATE1); |
6fad8f66 | 1397 | value &= ~SOR_SUPER_STATE_HEAD_MODE_MASK; |
a9a9e4fd | 1398 | tegra_sor_writel(sor, value, SOR_SUPER_STATE1); |
6fad8f66 TR |
1399 | tegra_sor_super_update(sor); |
1400 | ||
1401 | /* detach */ | |
a9a9e4fd | 1402 | value = tegra_sor_readl(sor, SOR_SUPER_STATE1); |
6fad8f66 | 1403 | value &= ~SOR_SUPER_STATE_ATTACHED; |
a9a9e4fd | 1404 | tegra_sor_writel(sor, value, SOR_SUPER_STATE1); |
6fad8f66 TR |
1405 | tegra_sor_super_update(sor); |
1406 | ||
1407 | timeout = jiffies + msecs_to_jiffies(250); | |
1408 | ||
1409 | while (time_before(jiffies, timeout)) { | |
1410 | value = tegra_sor_readl(sor, SOR_TEST); | |
1411 | if ((value & SOR_TEST_ATTACHED) == 0) | |
1412 | break; | |
1413 | ||
1414 | usleep_range(25, 100); | |
1415 | } | |
1416 | ||
1417 | if ((value & SOR_TEST_ATTACHED) != 0) | |
1418 | return -ETIMEDOUT; | |
1419 | ||
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | static int tegra_sor_power_down(struct tegra_sor *sor) | |
1424 | { | |
1425 | unsigned long value, timeout; | |
1426 | int err; | |
1427 | ||
1428 | value = tegra_sor_readl(sor, SOR_PWR); | |
1429 | value &= ~SOR_PWR_NORMAL_STATE_PU; | |
1430 | value |= SOR_PWR_TRIGGER; | |
1431 | tegra_sor_writel(sor, value, SOR_PWR); | |
1432 | ||
1433 | timeout = jiffies + msecs_to_jiffies(250); | |
1434 | ||
1435 | while (time_before(jiffies, timeout)) { | |
1436 | value = tegra_sor_readl(sor, SOR_PWR); | |
1437 | if ((value & SOR_PWR_TRIGGER) == 0) | |
1438 | return 0; | |
1439 | ||
1440 | usleep_range(25, 100); | |
1441 | } | |
1442 | ||
1443 | if ((value & SOR_PWR_TRIGGER) != 0) | |
1444 | return -ETIMEDOUT; | |
1445 | ||
25bb2cec TR |
1446 | /* switch to safe parent clock */ |
1447 | err = tegra_sor_set_parent_clock(sor, sor->clk_safe); | |
e1335e2f | 1448 | if (err < 0) { |
6fad8f66 | 1449 | dev_err(sor->dev, "failed to set safe parent clock: %d\n", err); |
e1335e2f TR |
1450 | return err; |
1451 | } | |
6fad8f66 | 1452 | |
880cee0b | 1453 | value = tegra_sor_readl(sor, sor->soc->regs->pll2); |
a9a9e4fd | 1454 | value |= SOR_PLL2_PORT_POWERDOWN; |
880cee0b | 1455 | tegra_sor_writel(sor, value, sor->soc->regs->pll2); |
6fad8f66 TR |
1456 | |
1457 | usleep_range(20, 100); | |
1458 | ||
880cee0b | 1459 | value = tegra_sor_readl(sor, sor->soc->regs->pll0); |
a9a9e4fd | 1460 | value |= SOR_PLL0_VCOPD | SOR_PLL0_PWR; |
880cee0b | 1461 | tegra_sor_writel(sor, value, sor->soc->regs->pll0); |
6fad8f66 | 1462 | |
880cee0b | 1463 | value = tegra_sor_readl(sor, sor->soc->regs->pll2); |
a9a9e4fd TR |
1464 | value |= SOR_PLL2_SEQ_PLLCAPPD; |
1465 | value |= SOR_PLL2_SEQ_PLLCAPPD_ENFORCE; | |
880cee0b | 1466 | tegra_sor_writel(sor, value, sor->soc->regs->pll2); |
6fad8f66 TR |
1467 | |
1468 | usleep_range(20, 100); | |
1469 | ||
1470 | return 0; | |
1471 | } | |
1472 | ||
6fad8f66 TR |
1473 | static int tegra_sor_crc_wait(struct tegra_sor *sor, unsigned long timeout) |
1474 | { | |
1475 | u32 value; | |
1476 | ||
1477 | timeout = jiffies + msecs_to_jiffies(timeout); | |
1478 | ||
1479 | while (time_before(jiffies, timeout)) { | |
a9a9e4fd TR |
1480 | value = tegra_sor_readl(sor, SOR_CRCA); |
1481 | if (value & SOR_CRCA_VALID) | |
6fad8f66 TR |
1482 | return 0; |
1483 | ||
1484 | usleep_range(100, 200); | |
1485 | } | |
1486 | ||
1487 | return -ETIMEDOUT; | |
1488 | } | |
1489 | ||
530239a8 | 1490 | static int tegra_sor_show_crc(struct seq_file *s, void *data) |
6fad8f66 | 1491 | { |
530239a8 TR |
1492 | struct drm_info_node *node = s->private; |
1493 | struct tegra_sor *sor = node->info_ent->data; | |
850bab44 TR |
1494 | struct drm_crtc *crtc = sor->output.encoder.crtc; |
1495 | struct drm_device *drm = node->minor->dev; | |
530239a8 | 1496 | int err = 0; |
6fad8f66 TR |
1497 | u32 value; |
1498 | ||
86e7786e | 1499 | drm_modeset_lock_all(drm); |
6fad8f66 | 1500 | |
850bab44 TR |
1501 | if (!crtc || !crtc->state->active) { |
1502 | err = -EBUSY; | |
6fad8f66 TR |
1503 | goto unlock; |
1504 | } | |
1505 | ||
a9a9e4fd | 1506 | value = tegra_sor_readl(sor, SOR_STATE1); |
6fad8f66 | 1507 | value &= ~SOR_STATE_ASY_CRC_MODE_MASK; |
a9a9e4fd | 1508 | tegra_sor_writel(sor, value, SOR_STATE1); |
6fad8f66 TR |
1509 | |
1510 | value = tegra_sor_readl(sor, SOR_CRC_CNTRL); | |
1511 | value |= SOR_CRC_CNTRL_ENABLE; | |
1512 | tegra_sor_writel(sor, value, SOR_CRC_CNTRL); | |
1513 | ||
1514 | value = tegra_sor_readl(sor, SOR_TEST); | |
1515 | value &= ~SOR_TEST_CRC_POST_SERIALIZE; | |
1516 | tegra_sor_writel(sor, value, SOR_TEST); | |
1517 | ||
1518 | err = tegra_sor_crc_wait(sor, 100); | |
1519 | if (err < 0) | |
1520 | goto unlock; | |
1521 | ||
a9a9e4fd TR |
1522 | tegra_sor_writel(sor, SOR_CRCA_RESET, SOR_CRCA); |
1523 | value = tegra_sor_readl(sor, SOR_CRCB); | |
6fad8f66 | 1524 | |
530239a8 | 1525 | seq_printf(s, "%08x\n", value); |
6fad8f66 TR |
1526 | |
1527 | unlock: | |
86e7786e | 1528 | drm_modeset_unlock_all(drm); |
6fad8f66 TR |
1529 | return err; |
1530 | } | |
1531 | ||
062f5b2c TR |
1532 | #define DEBUGFS_REG32(_name) { .name = #_name, .offset = _name } |
1533 | ||
1534 | static const struct debugfs_reg32 tegra_sor_regs[] = { | |
1535 | DEBUGFS_REG32(SOR_CTXSW), | |
1536 | DEBUGFS_REG32(SOR_SUPER_STATE0), | |
1537 | DEBUGFS_REG32(SOR_SUPER_STATE1), | |
1538 | DEBUGFS_REG32(SOR_STATE0), | |
1539 | DEBUGFS_REG32(SOR_STATE1), | |
1540 | DEBUGFS_REG32(SOR_HEAD_STATE0(0)), | |
1541 | DEBUGFS_REG32(SOR_HEAD_STATE0(1)), | |
1542 | DEBUGFS_REG32(SOR_HEAD_STATE1(0)), | |
1543 | DEBUGFS_REG32(SOR_HEAD_STATE1(1)), | |
1544 | DEBUGFS_REG32(SOR_HEAD_STATE2(0)), | |
1545 | DEBUGFS_REG32(SOR_HEAD_STATE2(1)), | |
1546 | DEBUGFS_REG32(SOR_HEAD_STATE3(0)), | |
1547 | DEBUGFS_REG32(SOR_HEAD_STATE3(1)), | |
1548 | DEBUGFS_REG32(SOR_HEAD_STATE4(0)), | |
1549 | DEBUGFS_REG32(SOR_HEAD_STATE4(1)), | |
1550 | DEBUGFS_REG32(SOR_HEAD_STATE5(0)), | |
1551 | DEBUGFS_REG32(SOR_HEAD_STATE5(1)), | |
1552 | DEBUGFS_REG32(SOR_CRC_CNTRL), | |
1553 | DEBUGFS_REG32(SOR_DP_DEBUG_MVID), | |
1554 | DEBUGFS_REG32(SOR_CLK_CNTRL), | |
1555 | DEBUGFS_REG32(SOR_CAP), | |
1556 | DEBUGFS_REG32(SOR_PWR), | |
1557 | DEBUGFS_REG32(SOR_TEST), | |
1558 | DEBUGFS_REG32(SOR_PLL0), | |
1559 | DEBUGFS_REG32(SOR_PLL1), | |
1560 | DEBUGFS_REG32(SOR_PLL2), | |
1561 | DEBUGFS_REG32(SOR_PLL3), | |
1562 | DEBUGFS_REG32(SOR_CSTM), | |
1563 | DEBUGFS_REG32(SOR_LVDS), | |
1564 | DEBUGFS_REG32(SOR_CRCA), | |
1565 | DEBUGFS_REG32(SOR_CRCB), | |
1566 | DEBUGFS_REG32(SOR_BLANK), | |
1567 | DEBUGFS_REG32(SOR_SEQ_CTL), | |
1568 | DEBUGFS_REG32(SOR_LANE_SEQ_CTL), | |
1569 | DEBUGFS_REG32(SOR_SEQ_INST(0)), | |
1570 | DEBUGFS_REG32(SOR_SEQ_INST(1)), | |
1571 | DEBUGFS_REG32(SOR_SEQ_INST(2)), | |
1572 | DEBUGFS_REG32(SOR_SEQ_INST(3)), | |
1573 | DEBUGFS_REG32(SOR_SEQ_INST(4)), | |
1574 | DEBUGFS_REG32(SOR_SEQ_INST(5)), | |
1575 | DEBUGFS_REG32(SOR_SEQ_INST(6)), | |
1576 | DEBUGFS_REG32(SOR_SEQ_INST(7)), | |
1577 | DEBUGFS_REG32(SOR_SEQ_INST(8)), | |
1578 | DEBUGFS_REG32(SOR_SEQ_INST(9)), | |
1579 | DEBUGFS_REG32(SOR_SEQ_INST(10)), | |
1580 | DEBUGFS_REG32(SOR_SEQ_INST(11)), | |
1581 | DEBUGFS_REG32(SOR_SEQ_INST(12)), | |
1582 | DEBUGFS_REG32(SOR_SEQ_INST(13)), | |
1583 | DEBUGFS_REG32(SOR_SEQ_INST(14)), | |
1584 | DEBUGFS_REG32(SOR_SEQ_INST(15)), | |
1585 | DEBUGFS_REG32(SOR_PWM_DIV), | |
1586 | DEBUGFS_REG32(SOR_PWM_CTL), | |
1587 | DEBUGFS_REG32(SOR_VCRC_A0), | |
1588 | DEBUGFS_REG32(SOR_VCRC_A1), | |
1589 | DEBUGFS_REG32(SOR_VCRC_B0), | |
1590 | DEBUGFS_REG32(SOR_VCRC_B1), | |
1591 | DEBUGFS_REG32(SOR_CCRC_A0), | |
1592 | DEBUGFS_REG32(SOR_CCRC_A1), | |
1593 | DEBUGFS_REG32(SOR_CCRC_B0), | |
1594 | DEBUGFS_REG32(SOR_CCRC_B1), | |
1595 | DEBUGFS_REG32(SOR_EDATA_A0), | |
1596 | DEBUGFS_REG32(SOR_EDATA_A1), | |
1597 | DEBUGFS_REG32(SOR_EDATA_B0), | |
1598 | DEBUGFS_REG32(SOR_EDATA_B1), | |
1599 | DEBUGFS_REG32(SOR_COUNT_A0), | |
1600 | DEBUGFS_REG32(SOR_COUNT_A1), | |
1601 | DEBUGFS_REG32(SOR_COUNT_B0), | |
1602 | DEBUGFS_REG32(SOR_COUNT_B1), | |
1603 | DEBUGFS_REG32(SOR_DEBUG_A0), | |
1604 | DEBUGFS_REG32(SOR_DEBUG_A1), | |
1605 | DEBUGFS_REG32(SOR_DEBUG_B0), | |
1606 | DEBUGFS_REG32(SOR_DEBUG_B1), | |
1607 | DEBUGFS_REG32(SOR_TRIG), | |
1608 | DEBUGFS_REG32(SOR_MSCHECK), | |
1609 | DEBUGFS_REG32(SOR_XBAR_CTRL), | |
1610 | DEBUGFS_REG32(SOR_XBAR_POL), | |
1611 | DEBUGFS_REG32(SOR_DP_LINKCTL0), | |
1612 | DEBUGFS_REG32(SOR_DP_LINKCTL1), | |
1613 | DEBUGFS_REG32(SOR_LANE_DRIVE_CURRENT0), | |
1614 | DEBUGFS_REG32(SOR_LANE_DRIVE_CURRENT1), | |
1615 | DEBUGFS_REG32(SOR_LANE4_DRIVE_CURRENT0), | |
1616 | DEBUGFS_REG32(SOR_LANE4_DRIVE_CURRENT1), | |
1617 | DEBUGFS_REG32(SOR_LANE_PREEMPHASIS0), | |
1618 | DEBUGFS_REG32(SOR_LANE_PREEMPHASIS1), | |
1619 | DEBUGFS_REG32(SOR_LANE4_PREEMPHASIS0), | |
1620 | DEBUGFS_REG32(SOR_LANE4_PREEMPHASIS1), | |
1621 | DEBUGFS_REG32(SOR_LANE_POSTCURSOR0), | |
1622 | DEBUGFS_REG32(SOR_LANE_POSTCURSOR1), | |
1623 | DEBUGFS_REG32(SOR_DP_CONFIG0), | |
1624 | DEBUGFS_REG32(SOR_DP_CONFIG1), | |
1625 | DEBUGFS_REG32(SOR_DP_MN0), | |
1626 | DEBUGFS_REG32(SOR_DP_MN1), | |
1627 | DEBUGFS_REG32(SOR_DP_PADCTL0), | |
1628 | DEBUGFS_REG32(SOR_DP_PADCTL1), | |
c57997bc | 1629 | DEBUGFS_REG32(SOR_DP_PADCTL2), |
062f5b2c TR |
1630 | DEBUGFS_REG32(SOR_DP_DEBUG0), |
1631 | DEBUGFS_REG32(SOR_DP_DEBUG1), | |
1632 | DEBUGFS_REG32(SOR_DP_SPARE0), | |
1633 | DEBUGFS_REG32(SOR_DP_SPARE1), | |
1634 | DEBUGFS_REG32(SOR_DP_AUDIO_CTRL), | |
1635 | DEBUGFS_REG32(SOR_DP_AUDIO_HBLANK_SYMBOLS), | |
1636 | DEBUGFS_REG32(SOR_DP_AUDIO_VBLANK_SYMBOLS), | |
1637 | DEBUGFS_REG32(SOR_DP_GENERIC_INFOFRAME_HEADER), | |
1638 | DEBUGFS_REG32(SOR_DP_GENERIC_INFOFRAME_SUBPACK0), | |
1639 | DEBUGFS_REG32(SOR_DP_GENERIC_INFOFRAME_SUBPACK1), | |
1640 | DEBUGFS_REG32(SOR_DP_GENERIC_INFOFRAME_SUBPACK2), | |
1641 | DEBUGFS_REG32(SOR_DP_GENERIC_INFOFRAME_SUBPACK3), | |
1642 | DEBUGFS_REG32(SOR_DP_GENERIC_INFOFRAME_SUBPACK4), | |
1643 | DEBUGFS_REG32(SOR_DP_GENERIC_INFOFRAME_SUBPACK5), | |
1644 | DEBUGFS_REG32(SOR_DP_GENERIC_INFOFRAME_SUBPACK6), | |
1645 | DEBUGFS_REG32(SOR_DP_TPG), | |
1646 | DEBUGFS_REG32(SOR_DP_TPG_CONFIG), | |
1647 | DEBUGFS_REG32(SOR_DP_LQ_CSTM0), | |
1648 | DEBUGFS_REG32(SOR_DP_LQ_CSTM1), | |
1649 | DEBUGFS_REG32(SOR_DP_LQ_CSTM2), | |
1650 | }; | |
1651 | ||
dab16336 TR |
1652 | static int tegra_sor_show_regs(struct seq_file *s, void *data) |
1653 | { | |
1654 | struct drm_info_node *node = s->private; | |
1655 | struct tegra_sor *sor = node->info_ent->data; | |
850bab44 TR |
1656 | struct drm_crtc *crtc = sor->output.encoder.crtc; |
1657 | struct drm_device *drm = node->minor->dev; | |
062f5b2c | 1658 | unsigned int i; |
850bab44 TR |
1659 | int err = 0; |
1660 | ||
86e7786e | 1661 | drm_modeset_lock_all(drm); |
850bab44 TR |
1662 | |
1663 | if (!crtc || !crtc->state->active) { | |
1664 | err = -EBUSY; | |
1665 | goto unlock; | |
1666 | } | |
dab16336 | 1667 | |
062f5b2c TR |
1668 | for (i = 0; i < ARRAY_SIZE(tegra_sor_regs); i++) { |
1669 | unsigned int offset = tegra_sor_regs[i].offset; | |
1670 | ||
1671 | seq_printf(s, "%-38s %#05x %08x\n", tegra_sor_regs[i].name, | |
1672 | offset, tegra_sor_readl(sor, offset)); | |
1673 | } | |
dab16336 | 1674 | |
850bab44 | 1675 | unlock: |
86e7786e | 1676 | drm_modeset_unlock_all(drm); |
850bab44 | 1677 | return err; |
dab16336 TR |
1678 | } |
1679 | ||
1680 | static const struct drm_info_list debugfs_files[] = { | |
530239a8 | 1681 | { "crc", tegra_sor_show_crc, 0, NULL }, |
dab16336 TR |
1682 | { "regs", tegra_sor_show_regs, 0, NULL }, |
1683 | }; | |
1684 | ||
5b8e043b | 1685 | static int tegra_sor_late_register(struct drm_connector *connector) |
6b6b6042 | 1686 | { |
5b8e043b TR |
1687 | struct tegra_output *output = connector_to_output(connector); |
1688 | unsigned int i, count = ARRAY_SIZE(debugfs_files); | |
1689 | struct drm_minor *minor = connector->dev->primary; | |
1690 | struct dentry *root = connector->debugfs_entry; | |
1691 | struct tegra_sor *sor = to_sor(output); | |
6fad8f66 | 1692 | |
dab16336 TR |
1693 | sor->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), |
1694 | GFP_KERNEL); | |
5b8e043b TR |
1695 | if (!sor->debugfs_files) |
1696 | return -ENOMEM; | |
dab16336 | 1697 | |
5b8e043b | 1698 | for (i = 0; i < count; i++) |
dab16336 TR |
1699 | sor->debugfs_files[i].data = sor; |
1700 | ||
ad6d94f2 | 1701 | drm_debugfs_create_files(sor->debugfs_files, count, root, minor); |
dab16336 | 1702 | |
530239a8 | 1703 | return 0; |
6fad8f66 TR |
1704 | } |
1705 | ||
5b8e043b | 1706 | static void tegra_sor_early_unregister(struct drm_connector *connector) |
6fad8f66 | 1707 | { |
5b8e043b TR |
1708 | struct tegra_output *output = connector_to_output(connector); |
1709 | unsigned int count = ARRAY_SIZE(debugfs_files); | |
1710 | struct tegra_sor *sor = to_sor(output); | |
dab16336 | 1711 | |
5b8e043b | 1712 | drm_debugfs_remove_files(sor->debugfs_files, count, |
8e455145 | 1713 | connector->debugfs_entry, |
5b8e043b | 1714 | connector->dev->primary); |
dab16336 | 1715 | kfree(sor->debugfs_files); |
066d30f8 | 1716 | sor->debugfs_files = NULL; |
6fad8f66 TR |
1717 | } |
1718 | ||
c31efa7a TR |
1719 | static void tegra_sor_connector_reset(struct drm_connector *connector) |
1720 | { | |
1721 | struct tegra_sor_state *state; | |
1722 | ||
1723 | state = kzalloc(sizeof(*state), GFP_KERNEL); | |
1724 | if (!state) | |
1725 | return; | |
1726 | ||
1727 | if (connector->state) { | |
1728 | __drm_atomic_helper_connector_destroy_state(connector->state); | |
1729 | kfree(connector->state); | |
1730 | } | |
1731 | ||
1732 | __drm_atomic_helper_connector_reset(connector, &state->base); | |
1733 | } | |
1734 | ||
6fad8f66 TR |
1735 | static enum drm_connector_status |
1736 | tegra_sor_connector_detect(struct drm_connector *connector, bool force) | |
1737 | { | |
1738 | struct tegra_output *output = connector_to_output(connector); | |
1739 | struct tegra_sor *sor = to_sor(output); | |
1740 | ||
9542c237 TR |
1741 | if (sor->aux) |
1742 | return drm_dp_aux_detect(sor->aux); | |
6fad8f66 | 1743 | |
459cc2c6 | 1744 | return tegra_output_connector_detect(connector, force); |
6fad8f66 TR |
1745 | } |
1746 | ||
c31efa7a TR |
1747 | static struct drm_connector_state * |
1748 | tegra_sor_connector_duplicate_state(struct drm_connector *connector) | |
1749 | { | |
1750 | struct tegra_sor_state *state = to_sor_state(connector->state); | |
1751 | struct tegra_sor_state *copy; | |
1752 | ||
1753 | copy = kmemdup(state, sizeof(*state), GFP_KERNEL); | |
1754 | if (!copy) | |
1755 | return NULL; | |
1756 | ||
1757 | __drm_atomic_helper_connector_duplicate_state(connector, ©->base); | |
1758 | ||
1759 | return ©->base; | |
1760 | } | |
1761 | ||
6fad8f66 | 1762 | static const struct drm_connector_funcs tegra_sor_connector_funcs = { |
c31efa7a | 1763 | .reset = tegra_sor_connector_reset, |
6fad8f66 TR |
1764 | .detect = tegra_sor_connector_detect, |
1765 | .fill_modes = drm_helper_probe_single_connector_modes, | |
1766 | .destroy = tegra_output_connector_destroy, | |
c31efa7a | 1767 | .atomic_duplicate_state = tegra_sor_connector_duplicate_state, |
4aa3df71 | 1768 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, |
5b8e043b TR |
1769 | .late_register = tegra_sor_late_register, |
1770 | .early_unregister = tegra_sor_early_unregister, | |
6fad8f66 TR |
1771 | }; |
1772 | ||
1773 | static int tegra_sor_connector_get_modes(struct drm_connector *connector) | |
1774 | { | |
1775 | struct tegra_output *output = connector_to_output(connector); | |
1776 | struct tegra_sor *sor = to_sor(output); | |
1777 | int err; | |
1778 | ||
9542c237 TR |
1779 | if (sor->aux) |
1780 | drm_dp_aux_enable(sor->aux); | |
6fad8f66 TR |
1781 | |
1782 | err = tegra_output_connector_get_modes(connector); | |
1783 | ||
9542c237 TR |
1784 | if (sor->aux) |
1785 | drm_dp_aux_disable(sor->aux); | |
6fad8f66 TR |
1786 | |
1787 | return err; | |
1788 | } | |
1789 | ||
1790 | static enum drm_mode_status | |
1791 | tegra_sor_connector_mode_valid(struct drm_connector *connector, | |
1792 | struct drm_display_mode *mode) | |
1793 | { | |
1794 | return MODE_OK; | |
1795 | } | |
1796 | ||
1797 | static const struct drm_connector_helper_funcs tegra_sor_connector_helper_funcs = { | |
1798 | .get_modes = tegra_sor_connector_get_modes, | |
1799 | .mode_valid = tegra_sor_connector_mode_valid, | |
6fad8f66 TR |
1800 | }; |
1801 | ||
82f1511c TR |
1802 | static int |
1803 | tegra_sor_encoder_atomic_check(struct drm_encoder *encoder, | |
1804 | struct drm_crtc_state *crtc_state, | |
1805 | struct drm_connector_state *conn_state) | |
1806 | { | |
1807 | struct tegra_output *output = encoder_to_output(encoder); | |
c31efa7a | 1808 | struct tegra_sor_state *state = to_sor_state(conn_state); |
82f1511c TR |
1809 | struct tegra_dc *dc = to_tegra_dc(conn_state->crtc); |
1810 | unsigned long pclk = crtc_state->mode.clock * 1000; | |
1811 | struct tegra_sor *sor = to_sor(output); | |
c31efa7a | 1812 | struct drm_display_info *info; |
82f1511c TR |
1813 | int err; |
1814 | ||
c31efa7a TR |
1815 | info = &output->connector.display_info; |
1816 | ||
36e90221 TR |
1817 | /* |
1818 | * For HBR2 modes, the SOR brick needs to use the x20 multiplier, so | |
1819 | * the pixel clock must be corrected accordingly. | |
1820 | */ | |
1821 | if (pclk >= 340000000) { | |
1822 | state->link_speed = 20; | |
1823 | state->pclk = pclk / 2; | |
1824 | } else { | |
1825 | state->link_speed = 10; | |
1826 | state->pclk = pclk; | |
1827 | } | |
1828 | ||
82f1511c TR |
1829 | err = tegra_dc_state_setup_clock(dc, crtc_state, sor->clk_parent, |
1830 | pclk, 0); | |
1831 | if (err < 0) { | |
1832 | dev_err(output->dev, "failed to setup CRTC state: %d\n", err); | |
1833 | return err; | |
1834 | } | |
1835 | ||
c31efa7a TR |
1836 | switch (info->bpc) { |
1837 | case 8: | |
1838 | case 6: | |
1839 | state->bpc = info->bpc; | |
1840 | break; | |
1841 | ||
1842 | default: | |
1843 | DRM_DEBUG_KMS("%u bits-per-color not supported\n", info->bpc); | |
1844 | state->bpc = 8; | |
1845 | break; | |
1846 | } | |
1847 | ||
82f1511c TR |
1848 | return 0; |
1849 | } | |
1850 | ||
459cc2c6 TR |
1851 | static inline u32 tegra_sor_hdmi_subpack(const u8 *ptr, size_t size) |
1852 | { | |
1853 | u32 value = 0; | |
1854 | size_t i; | |
1855 | ||
1856 | for (i = size; i > 0; i--) | |
1857 | value = (value << 8) | ptr[i - 1]; | |
1858 | ||
1859 | return value; | |
1860 | } | |
1861 | ||
1862 | static void tegra_sor_hdmi_write_infopack(struct tegra_sor *sor, | |
1863 | const void *data, size_t size) | |
1864 | { | |
1865 | const u8 *ptr = data; | |
1866 | unsigned long offset; | |
1867 | size_t i, j; | |
1868 | u32 value; | |
1869 | ||
1870 | switch (ptr[0]) { | |
1871 | case HDMI_INFOFRAME_TYPE_AVI: | |
1872 | offset = SOR_HDMI_AVI_INFOFRAME_HEADER; | |
1873 | break; | |
1874 | ||
1875 | case HDMI_INFOFRAME_TYPE_AUDIO: | |
1876 | offset = SOR_HDMI_AUDIO_INFOFRAME_HEADER; | |
1877 | break; | |
1878 | ||
1879 | case HDMI_INFOFRAME_TYPE_VENDOR: | |
1880 | offset = SOR_HDMI_VSI_INFOFRAME_HEADER; | |
1881 | break; | |
1882 | ||
1883 | default: | |
1884 | dev_err(sor->dev, "unsupported infoframe type: %02x\n", | |
1885 | ptr[0]); | |
1886 | return; | |
1887 | } | |
1888 | ||
1889 | value = INFOFRAME_HEADER_TYPE(ptr[0]) | | |
1890 | INFOFRAME_HEADER_VERSION(ptr[1]) | | |
1891 | INFOFRAME_HEADER_LEN(ptr[2]); | |
1892 | tegra_sor_writel(sor, value, offset); | |
1893 | offset++; | |
1894 | ||
1895 | /* | |
1896 | * Each subpack contains 7 bytes, divided into: | |
1897 | * - subpack_low: bytes 0 - 3 | |
1898 | * - subpack_high: bytes 4 - 6 (with byte 7 padded to 0x00) | |
1899 | */ | |
1900 | for (i = 3, j = 0; i < size; i += 7, j += 8) { | |
1901 | size_t rem = size - i, num = min_t(size_t, rem, 4); | |
1902 | ||
1903 | value = tegra_sor_hdmi_subpack(&ptr[i], num); | |
1904 | tegra_sor_writel(sor, value, offset++); | |
1905 | ||
1906 | num = min_t(size_t, rem - num, 3); | |
1907 | ||
1908 | value = tegra_sor_hdmi_subpack(&ptr[i + 4], num); | |
1909 | tegra_sor_writel(sor, value, offset++); | |
1910 | } | |
1911 | } | |
1912 | ||
1913 | static int | |
1914 | tegra_sor_hdmi_setup_avi_infoframe(struct tegra_sor *sor, | |
1915 | const struct drm_display_mode *mode) | |
1916 | { | |
1917 | u8 buffer[HDMI_INFOFRAME_SIZE(AVI)]; | |
1918 | struct hdmi_avi_infoframe frame; | |
1919 | u32 value; | |
1920 | int err; | |
1921 | ||
1922 | /* disable AVI infoframe */ | |
1923 | value = tegra_sor_readl(sor, SOR_HDMI_AVI_INFOFRAME_CTRL); | |
1924 | value &= ~INFOFRAME_CTRL_SINGLE; | |
1925 | value &= ~INFOFRAME_CTRL_OTHER; | |
1926 | value &= ~INFOFRAME_CTRL_ENABLE; | |
1927 | tegra_sor_writel(sor, value, SOR_HDMI_AVI_INFOFRAME_CTRL); | |
1928 | ||
13d0add3 VS |
1929 | err = drm_hdmi_avi_infoframe_from_display_mode(&frame, |
1930 | &sor->output.connector, mode); | |
459cc2c6 TR |
1931 | if (err < 0) { |
1932 | dev_err(sor->dev, "failed to setup AVI infoframe: %d\n", err); | |
1933 | return err; | |
1934 | } | |
1935 | ||
1936 | err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); | |
1937 | if (err < 0) { | |
1938 | dev_err(sor->dev, "failed to pack AVI infoframe: %d\n", err); | |
1939 | return err; | |
1940 | } | |
1941 | ||
1942 | tegra_sor_hdmi_write_infopack(sor, buffer, err); | |
1943 | ||
1944 | /* enable AVI infoframe */ | |
1945 | value = tegra_sor_readl(sor, SOR_HDMI_AVI_INFOFRAME_CTRL); | |
1946 | value |= INFOFRAME_CTRL_CHECKSUM_ENABLE; | |
1947 | value |= INFOFRAME_CTRL_ENABLE; | |
1948 | tegra_sor_writel(sor, value, SOR_HDMI_AVI_INFOFRAME_CTRL); | |
1949 | ||
1950 | return 0; | |
1951 | } | |
1952 | ||
8e2988a7 TR |
1953 | static void tegra_sor_write_eld(struct tegra_sor *sor) |
1954 | { | |
1955 | size_t length = drm_eld_size(sor->output.connector.eld), i; | |
1956 | ||
1957 | for (i = 0; i < length; i++) | |
1958 | tegra_sor_writel(sor, i << 8 | sor->output.connector.eld[i], | |
1959 | SOR_AUDIO_HDA_ELD_BUFWR); | |
1960 | ||
1961 | /* | |
1962 | * The HDA codec will always report an ELD buffer size of 96 bytes and | |
1963 | * the HDA codec driver will check that each byte read from the buffer | |
1964 | * is valid. Therefore every byte must be written, even if no 96 bytes | |
1965 | * were parsed from EDID. | |
1966 | */ | |
1967 | for (i = length; i < 96; i++) | |
1968 | tegra_sor_writel(sor, i << 8 | 0, SOR_AUDIO_HDA_ELD_BUFWR); | |
1969 | } | |
1970 | ||
1971 | static void tegra_sor_audio_prepare(struct tegra_sor *sor) | |
1972 | { | |
1973 | u32 value; | |
1974 | ||
f1f20eb9 TR |
1975 | /* |
1976 | * Enable and unmask the HDA codec SCRATCH0 register interrupt. This | |
1977 | * is used for interoperability between the HDA codec driver and the | |
1978 | * HDMI/DP driver. | |
1979 | */ | |
1980 | value = SOR_INT_CODEC_SCRATCH1 | SOR_INT_CODEC_SCRATCH0; | |
1981 | tegra_sor_writel(sor, value, SOR_INT_ENABLE); | |
1982 | tegra_sor_writel(sor, value, SOR_INT_MASK); | |
1983 | ||
8e2988a7 TR |
1984 | tegra_sor_write_eld(sor); |
1985 | ||
1986 | value = SOR_AUDIO_HDA_PRESENSE_ELDV | SOR_AUDIO_HDA_PRESENSE_PD; | |
1987 | tegra_sor_writel(sor, value, SOR_AUDIO_HDA_PRESENSE); | |
1988 | } | |
1989 | ||
1990 | static void tegra_sor_audio_unprepare(struct tegra_sor *sor) | |
1991 | { | |
1992 | tegra_sor_writel(sor, 0, SOR_AUDIO_HDA_PRESENSE); | |
f1f20eb9 TR |
1993 | tegra_sor_writel(sor, 0, SOR_INT_MASK); |
1994 | tegra_sor_writel(sor, 0, SOR_INT_ENABLE); | |
8e2988a7 TR |
1995 | } |
1996 | ||
a9087cf2 TR |
1997 | static void tegra_sor_audio_enable(struct tegra_sor *sor) |
1998 | { | |
1999 | u32 value; | |
2000 | ||
2001 | value = tegra_sor_readl(sor, SOR_AUDIO_CNTRL); | |
2002 | ||
2003 | /* select HDA audio input */ | |
2004 | value &= ~SOR_AUDIO_CNTRL_SOURCE_SELECT(SOURCE_SELECT_MASK); | |
2005 | value |= SOR_AUDIO_CNTRL_SOURCE_SELECT(SOURCE_SELECT_HDA); | |
2006 | ||
2007 | /* inject null samples */ | |
2008 | if (sor->format.channels != 2) | |
2009 | value &= ~SOR_AUDIO_CNTRL_INJECT_NULLSMPL; | |
2010 | else | |
2011 | value |= SOR_AUDIO_CNTRL_INJECT_NULLSMPL; | |
2012 | ||
2013 | value |= SOR_AUDIO_CNTRL_AFIFO_FLUSH; | |
2014 | ||
2015 | tegra_sor_writel(sor, value, SOR_AUDIO_CNTRL); | |
2016 | ||
2017 | /* enable advertising HBR capability */ | |
2018 | tegra_sor_writel(sor, SOR_AUDIO_SPARE_HBR_ENABLE, SOR_AUDIO_SPARE); | |
2019 | } | |
2020 | ||
8e2988a7 TR |
2021 | static int tegra_sor_hdmi_enable_audio_infoframe(struct tegra_sor *sor) |
2022 | { | |
2023 | u8 buffer[HDMI_INFOFRAME_SIZE(AUDIO)]; | |
2024 | struct hdmi_audio_infoframe frame; | |
2025 | u32 value; | |
2026 | int err; | |
2027 | ||
2028 | err = hdmi_audio_infoframe_init(&frame); | |
2029 | if (err < 0) { | |
2030 | dev_err(sor->dev, "failed to setup audio infoframe: %d\n", err); | |
2031 | return err; | |
2032 | } | |
2033 | ||
fad7b806 | 2034 | frame.channels = sor->format.channels; |
8e2988a7 TR |
2035 | |
2036 | err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer)); | |
2037 | if (err < 0) { | |
2038 | dev_err(sor->dev, "failed to pack audio infoframe: %d\n", err); | |
2039 | return err; | |
2040 | } | |
2041 | ||
2042 | tegra_sor_hdmi_write_infopack(sor, buffer, err); | |
2043 | ||
2044 | value = tegra_sor_readl(sor, SOR_HDMI_AUDIO_INFOFRAME_CTRL); | |
2045 | value |= INFOFRAME_CTRL_CHECKSUM_ENABLE; | |
2046 | value |= INFOFRAME_CTRL_ENABLE; | |
2047 | tegra_sor_writel(sor, value, SOR_HDMI_AUDIO_INFOFRAME_CTRL); | |
2048 | ||
2049 | return 0; | |
2050 | } | |
2051 | ||
2052 | static void tegra_sor_hdmi_audio_enable(struct tegra_sor *sor) | |
2053 | { | |
2054 | u32 value; | |
2055 | ||
a9087cf2 | 2056 | tegra_sor_audio_enable(sor); |
8e2988a7 TR |
2057 | |
2058 | tegra_sor_writel(sor, 0, SOR_HDMI_ACR_CTRL); | |
2059 | ||
2060 | value = SOR_HDMI_SPARE_ACR_PRIORITY_HIGH | | |
2061 | SOR_HDMI_SPARE_CTS_RESET(1) | | |
2062 | SOR_HDMI_SPARE_HW_CTS_ENABLE; | |
2063 | tegra_sor_writel(sor, value, SOR_HDMI_SPARE); | |
2064 | ||
2065 | /* enable HW CTS */ | |
2066 | value = SOR_HDMI_ACR_SUBPACK_LOW_SB1(0); | |
2067 | tegra_sor_writel(sor, value, SOR_HDMI_ACR_0441_SUBPACK_LOW); | |
2068 | ||
2069 | /* allow packet to be sent */ | |
2070 | value = SOR_HDMI_ACR_SUBPACK_HIGH_ENABLE; | |
2071 | tegra_sor_writel(sor, value, SOR_HDMI_ACR_0441_SUBPACK_HIGH); | |
2072 | ||
2073 | /* reset N counter and enable lookup */ | |
2074 | value = SOR_HDMI_AUDIO_N_RESET | SOR_HDMI_AUDIO_N_LOOKUP; | |
2075 | tegra_sor_writel(sor, value, SOR_HDMI_AUDIO_N); | |
2076 | ||
fad7b806 | 2077 | value = (24000 * 4096) / (128 * sor->format.sample_rate / 1000); |
8e2988a7 TR |
2078 | tegra_sor_writel(sor, value, SOR_AUDIO_AVAL_0320); |
2079 | tegra_sor_writel(sor, 4096, SOR_AUDIO_NVAL_0320); | |
2080 | ||
2081 | tegra_sor_writel(sor, 20000, SOR_AUDIO_AVAL_0441); | |
2082 | tegra_sor_writel(sor, 4704, SOR_AUDIO_NVAL_0441); | |
2083 | ||
2084 | tegra_sor_writel(sor, 20000, SOR_AUDIO_AVAL_0882); | |
2085 | tegra_sor_writel(sor, 9408, SOR_AUDIO_NVAL_0882); | |
2086 | ||
2087 | tegra_sor_writel(sor, 20000, SOR_AUDIO_AVAL_1764); | |
2088 | tegra_sor_writel(sor, 18816, SOR_AUDIO_NVAL_1764); | |
2089 | ||
fad7b806 | 2090 | value = (24000 * 6144) / (128 * sor->format.sample_rate / 1000); |
8e2988a7 TR |
2091 | tegra_sor_writel(sor, value, SOR_AUDIO_AVAL_0480); |
2092 | tegra_sor_writel(sor, 6144, SOR_AUDIO_NVAL_0480); | |
2093 | ||
fad7b806 | 2094 | value = (24000 * 12288) / (128 * sor->format.sample_rate / 1000); |
8e2988a7 TR |
2095 | tegra_sor_writel(sor, value, SOR_AUDIO_AVAL_0960); |
2096 | tegra_sor_writel(sor, 12288, SOR_AUDIO_NVAL_0960); | |
2097 | ||
fad7b806 | 2098 | value = (24000 * 24576) / (128 * sor->format.sample_rate / 1000); |
8e2988a7 TR |
2099 | tegra_sor_writel(sor, value, SOR_AUDIO_AVAL_1920); |
2100 | tegra_sor_writel(sor, 24576, SOR_AUDIO_NVAL_1920); | |
2101 | ||
2102 | value = tegra_sor_readl(sor, SOR_HDMI_AUDIO_N); | |
2103 | value &= ~SOR_HDMI_AUDIO_N_RESET; | |
2104 | tegra_sor_writel(sor, value, SOR_HDMI_AUDIO_N); | |
2105 | ||
2106 | tegra_sor_hdmi_enable_audio_infoframe(sor); | |
2107 | } | |
2108 | ||
459cc2c6 TR |
2109 | static void tegra_sor_hdmi_disable_audio_infoframe(struct tegra_sor *sor) |
2110 | { | |
2111 | u32 value; | |
2112 | ||
2113 | value = tegra_sor_readl(sor, SOR_HDMI_AUDIO_INFOFRAME_CTRL); | |
2114 | value &= ~INFOFRAME_CTRL_ENABLE; | |
2115 | tegra_sor_writel(sor, value, SOR_HDMI_AUDIO_INFOFRAME_CTRL); | |
2116 | } | |
2117 | ||
8e2988a7 TR |
2118 | static void tegra_sor_hdmi_audio_disable(struct tegra_sor *sor) |
2119 | { | |
2120 | tegra_sor_hdmi_disable_audio_infoframe(sor); | |
2121 | } | |
2122 | ||
459cc2c6 TR |
2123 | static struct tegra_sor_hdmi_settings * |
2124 | tegra_sor_hdmi_find_settings(struct tegra_sor *sor, unsigned long frequency) | |
2125 | { | |
2126 | unsigned int i; | |
2127 | ||
2128 | for (i = 0; i < sor->num_settings; i++) | |
2129 | if (frequency <= sor->settings[i].frequency) | |
2130 | return &sor->settings[i]; | |
2131 | ||
2132 | return NULL; | |
2133 | } | |
2134 | ||
36e90221 TR |
2135 | static void tegra_sor_hdmi_disable_scrambling(struct tegra_sor *sor) |
2136 | { | |
2137 | u32 value; | |
2138 | ||
2139 | value = tegra_sor_readl(sor, SOR_HDMI2_CTRL); | |
2140 | value &= ~SOR_HDMI2_CTRL_CLOCK_MODE_DIV_BY_4; | |
2141 | value &= ~SOR_HDMI2_CTRL_SCRAMBLE; | |
2142 | tegra_sor_writel(sor, value, SOR_HDMI2_CTRL); | |
2143 | } | |
2144 | ||
2145 | static void tegra_sor_hdmi_scdc_disable(struct tegra_sor *sor) | |
2146 | { | |
5d844091 VS |
2147 | drm_scdc_set_high_tmds_clock_ratio(&sor->output.connector, false); |
2148 | drm_scdc_set_scrambling(&sor->output.connector, false); | |
36e90221 TR |
2149 | |
2150 | tegra_sor_hdmi_disable_scrambling(sor); | |
2151 | } | |
2152 | ||
2153 | static void tegra_sor_hdmi_scdc_stop(struct tegra_sor *sor) | |
2154 | { | |
2155 | if (sor->scdc_enabled) { | |
2156 | cancel_delayed_work_sync(&sor->scdc); | |
2157 | tegra_sor_hdmi_scdc_disable(sor); | |
2158 | } | |
2159 | } | |
2160 | ||
2161 | static void tegra_sor_hdmi_enable_scrambling(struct tegra_sor *sor) | |
2162 | { | |
2163 | u32 value; | |
2164 | ||
2165 | value = tegra_sor_readl(sor, SOR_HDMI2_CTRL); | |
2166 | value |= SOR_HDMI2_CTRL_CLOCK_MODE_DIV_BY_4; | |
2167 | value |= SOR_HDMI2_CTRL_SCRAMBLE; | |
2168 | tegra_sor_writel(sor, value, SOR_HDMI2_CTRL); | |
2169 | } | |
2170 | ||
2171 | static void tegra_sor_hdmi_scdc_enable(struct tegra_sor *sor) | |
2172 | { | |
5d844091 VS |
2173 | drm_scdc_set_high_tmds_clock_ratio(&sor->output.connector, true); |
2174 | drm_scdc_set_scrambling(&sor->output.connector, true); | |
36e90221 TR |
2175 | |
2176 | tegra_sor_hdmi_enable_scrambling(sor); | |
2177 | } | |
2178 | ||
2179 | static void tegra_sor_hdmi_scdc_work(struct work_struct *work) | |
2180 | { | |
2181 | struct tegra_sor *sor = container_of(work, struct tegra_sor, scdc.work); | |
36e90221 | 2182 | |
5d844091 | 2183 | if (!drm_scdc_get_scrambling_status(&sor->output.connector)) { |
36e90221 TR |
2184 | DRM_DEBUG_KMS("SCDC not scrambled\n"); |
2185 | tegra_sor_hdmi_scdc_enable(sor); | |
2186 | } | |
2187 | ||
2188 | schedule_delayed_work(&sor->scdc, msecs_to_jiffies(5000)); | |
2189 | } | |
2190 | ||
2191 | static void tegra_sor_hdmi_scdc_start(struct tegra_sor *sor) | |
2192 | { | |
2193 | struct drm_scdc *scdc = &sor->output.connector.display_info.hdmi.scdc; | |
2194 | struct drm_display_mode *mode; | |
2195 | ||
2196 | mode = &sor->output.encoder.crtc->state->adjusted_mode; | |
2197 | ||
2198 | if (mode->clock >= 340000 && scdc->supported) { | |
2199 | schedule_delayed_work(&sor->scdc, msecs_to_jiffies(5000)); | |
2200 | tegra_sor_hdmi_scdc_enable(sor); | |
2201 | sor->scdc_enabled = true; | |
2202 | } | |
2203 | } | |
2204 | ||
459cc2c6 TR |
2205 | static void tegra_sor_hdmi_disable(struct drm_encoder *encoder) |
2206 | { | |
2207 | struct tegra_output *output = encoder_to_output(encoder); | |
2208 | struct tegra_dc *dc = to_tegra_dc(encoder->crtc); | |
2209 | struct tegra_sor *sor = to_sor(output); | |
2210 | u32 value; | |
2211 | int err; | |
2212 | ||
8e2988a7 | 2213 | tegra_sor_audio_unprepare(sor); |
36e90221 TR |
2214 | tegra_sor_hdmi_scdc_stop(sor); |
2215 | ||
459cc2c6 TR |
2216 | err = tegra_sor_detach(sor); |
2217 | if (err < 0) | |
2218 | dev_err(sor->dev, "failed to detach SOR: %d\n", err); | |
2219 | ||
2220 | tegra_sor_writel(sor, 0, SOR_STATE1); | |
2221 | tegra_sor_update(sor); | |
2222 | ||
2223 | /* disable display to SOR clock */ | |
2224 | value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); | |
c57997bc TR |
2225 | |
2226 | if (!sor->soc->has_nvdisplay) | |
d278e4a9 TR |
2227 | value &= ~SOR1_TIMING_CYA; |
2228 | ||
2229 | value &= ~SOR_ENABLE(sor->index); | |
c57997bc | 2230 | |
459cc2c6 TR |
2231 | tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); |
2232 | ||
2233 | tegra_dc_commit(dc); | |
2234 | ||
2235 | err = tegra_sor_power_down(sor); | |
2236 | if (err < 0) | |
2237 | dev_err(sor->dev, "failed to power down SOR: %d\n", err); | |
2238 | ||
c57997bc | 2239 | err = tegra_io_pad_power_disable(sor->pad); |
459cc2c6 | 2240 | if (err < 0) |
c57997bc | 2241 | dev_err(sor->dev, "failed to power off I/O pad: %d\n", err); |
459cc2c6 | 2242 | |
fd67e9c6 | 2243 | host1x_client_suspend(&sor->client); |
459cc2c6 TR |
2244 | } |
2245 | ||
2246 | static void tegra_sor_hdmi_enable(struct drm_encoder *encoder) | |
2247 | { | |
2248 | struct tegra_output *output = encoder_to_output(encoder); | |
2249 | unsigned int h_ref_to_sync = 1, pulse_start, max_ac; | |
2250 | struct tegra_dc *dc = to_tegra_dc(encoder->crtc); | |
459cc2c6 TR |
2251 | struct tegra_sor_hdmi_settings *settings; |
2252 | struct tegra_sor *sor = to_sor(output); | |
c31efa7a | 2253 | struct tegra_sor_state *state; |
459cc2c6 | 2254 | struct drm_display_mode *mode; |
36e90221 | 2255 | unsigned long rate, pclk; |
30b49435 | 2256 | unsigned int div, i; |
459cc2c6 TR |
2257 | u32 value; |
2258 | int err; | |
2259 | ||
c31efa7a | 2260 | state = to_sor_state(output->connector.state); |
459cc2c6 | 2261 | mode = &encoder->crtc->state->adjusted_mode; |
36e90221 | 2262 | pclk = mode->clock * 1000; |
459cc2c6 | 2263 | |
fd67e9c6 TR |
2264 | err = host1x_client_resume(&sor->client); |
2265 | if (err < 0) { | |
2266 | dev_err(sor->dev, "failed to resume: %d\n", err); | |
2267 | return; | |
2268 | } | |
459cc2c6 | 2269 | |
25bb2cec TR |
2270 | /* switch to safe parent clock */ |
2271 | err = tegra_sor_set_parent_clock(sor, sor->clk_safe); | |
e1335e2f | 2272 | if (err < 0) { |
459cc2c6 | 2273 | dev_err(sor->dev, "failed to set safe parent clock: %d\n", err); |
e1335e2f TR |
2274 | return; |
2275 | } | |
459cc2c6 TR |
2276 | |
2277 | div = clk_get_rate(sor->clk) / 1000000 * 4; | |
2278 | ||
c57997bc | 2279 | err = tegra_io_pad_power_enable(sor->pad); |
459cc2c6 | 2280 | if (err < 0) |
c57997bc | 2281 | dev_err(sor->dev, "failed to power on I/O pad: %d\n", err); |
459cc2c6 TR |
2282 | |
2283 | usleep_range(20, 100); | |
2284 | ||
880cee0b | 2285 | value = tegra_sor_readl(sor, sor->soc->regs->pll2); |
459cc2c6 | 2286 | value &= ~SOR_PLL2_BANDGAP_POWERDOWN; |
880cee0b | 2287 | tegra_sor_writel(sor, value, sor->soc->regs->pll2); |
459cc2c6 TR |
2288 | |
2289 | usleep_range(20, 100); | |
2290 | ||
880cee0b | 2291 | value = tegra_sor_readl(sor, sor->soc->regs->pll3); |
459cc2c6 | 2292 | value &= ~SOR_PLL3_PLL_VDD_MODE_3V3; |
880cee0b | 2293 | tegra_sor_writel(sor, value, sor->soc->regs->pll3); |
459cc2c6 | 2294 | |
880cee0b | 2295 | value = tegra_sor_readl(sor, sor->soc->regs->pll0); |
459cc2c6 TR |
2296 | value &= ~SOR_PLL0_VCOPD; |
2297 | value &= ~SOR_PLL0_PWR; | |
880cee0b | 2298 | tegra_sor_writel(sor, value, sor->soc->regs->pll0); |
459cc2c6 | 2299 | |
880cee0b | 2300 | value = tegra_sor_readl(sor, sor->soc->regs->pll2); |
459cc2c6 | 2301 | value &= ~SOR_PLL2_SEQ_PLLCAPPD_ENFORCE; |
880cee0b | 2302 | tegra_sor_writel(sor, value, sor->soc->regs->pll2); |
459cc2c6 TR |
2303 | |
2304 | usleep_range(200, 400); | |
2305 | ||
880cee0b | 2306 | value = tegra_sor_readl(sor, sor->soc->regs->pll2); |
459cc2c6 TR |
2307 | value &= ~SOR_PLL2_POWERDOWN_OVERRIDE; |
2308 | value &= ~SOR_PLL2_PORT_POWERDOWN; | |
880cee0b | 2309 | tegra_sor_writel(sor, value, sor->soc->regs->pll2); |
459cc2c6 TR |
2310 | |
2311 | usleep_range(20, 100); | |
2312 | ||
880cee0b | 2313 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); |
459cc2c6 TR |
2314 | value |= SOR_DP_PADCTL_PD_TXD_3 | SOR_DP_PADCTL_PD_TXD_0 | |
2315 | SOR_DP_PADCTL_PD_TXD_1 | SOR_DP_PADCTL_PD_TXD_2; | |
880cee0b | 2316 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); |
459cc2c6 TR |
2317 | |
2318 | while (true) { | |
2319 | value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL); | |
2320 | if ((value & SOR_LANE_SEQ_CTL_STATE_BUSY) == 0) | |
2321 | break; | |
2322 | ||
2323 | usleep_range(250, 1000); | |
2324 | } | |
2325 | ||
2326 | value = SOR_LANE_SEQ_CTL_TRIGGER | SOR_LANE_SEQ_CTL_SEQUENCE_DOWN | | |
2327 | SOR_LANE_SEQ_CTL_POWER_STATE_UP | SOR_LANE_SEQ_CTL_DELAY(5); | |
2328 | tegra_sor_writel(sor, value, SOR_LANE_SEQ_CTL); | |
2329 | ||
2330 | while (true) { | |
2331 | value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL); | |
2332 | if ((value & SOR_LANE_SEQ_CTL_TRIGGER) == 0) | |
2333 | break; | |
2334 | ||
2335 | usleep_range(250, 1000); | |
2336 | } | |
2337 | ||
2338 | value = tegra_sor_readl(sor, SOR_CLK_CNTRL); | |
2339 | value &= ~SOR_CLK_CNTRL_DP_LINK_SPEED_MASK; | |
2340 | value &= ~SOR_CLK_CNTRL_DP_CLK_SEL_MASK; | |
2341 | ||
36e90221 TR |
2342 | if (mode->clock < 340000) { |
2343 | DRM_DEBUG_KMS("setting 2.7 GHz link speed\n"); | |
459cc2c6 | 2344 | value |= SOR_CLK_CNTRL_DP_LINK_SPEED_G2_70; |
36e90221 TR |
2345 | } else { |
2346 | DRM_DEBUG_KMS("setting 5.4 GHz link speed\n"); | |
459cc2c6 | 2347 | value |= SOR_CLK_CNTRL_DP_LINK_SPEED_G5_40; |
36e90221 | 2348 | } |
459cc2c6 TR |
2349 | |
2350 | value |= SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_PCLK; | |
2351 | tegra_sor_writel(sor, value, SOR_CLK_CNTRL); | |
2352 | ||
c57997bc TR |
2353 | /* SOR pad PLL stabilization time */ |
2354 | usleep_range(250, 1000); | |
2355 | ||
2356 | value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); | |
2357 | value &= ~SOR_DP_LINKCTL_LANE_COUNT_MASK; | |
2358 | value |= SOR_DP_LINKCTL_LANE_COUNT(4); | |
2359 | tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); | |
2360 | ||
459cc2c6 | 2361 | value = tegra_sor_readl(sor, SOR_DP_SPARE0); |
c57997bc | 2362 | value &= ~SOR_DP_SPARE_DISP_VIDEO_PREAMBLE; |
459cc2c6 | 2363 | value &= ~SOR_DP_SPARE_PANEL_INTERNAL; |
c57997bc TR |
2364 | value &= ~SOR_DP_SPARE_SEQ_ENABLE; |
2365 | value &= ~SOR_DP_SPARE_MACRO_SOR_CLK; | |
459cc2c6 TR |
2366 | tegra_sor_writel(sor, value, SOR_DP_SPARE0); |
2367 | ||
2368 | value = SOR_SEQ_CTL_PU_PC(0) | SOR_SEQ_CTL_PU_PC_ALT(0) | | |
2369 | SOR_SEQ_CTL_PD_PC(8) | SOR_SEQ_CTL_PD_PC_ALT(8); | |
2370 | tegra_sor_writel(sor, value, SOR_SEQ_CTL); | |
2371 | ||
2372 | value = SOR_SEQ_INST_DRIVE_PWM_OUT_LO | SOR_SEQ_INST_HALT | | |
2373 | SOR_SEQ_INST_WAIT_VSYNC | SOR_SEQ_INST_WAIT(1); | |
2374 | tegra_sor_writel(sor, value, SOR_SEQ_INST(0)); | |
2375 | tegra_sor_writel(sor, value, SOR_SEQ_INST(8)); | |
2376 | ||
c57997bc TR |
2377 | if (!sor->soc->has_nvdisplay) { |
2378 | /* program the reference clock */ | |
2379 | value = SOR_REFCLK_DIV_INT(div) | SOR_REFCLK_DIV_FRAC(div); | |
2380 | tegra_sor_writel(sor, value, SOR_REFCLK); | |
2381 | } | |
459cc2c6 | 2382 | |
30b49435 TR |
2383 | /* XXX not in TRM */ |
2384 | for (value = 0, i = 0; i < 5; i++) | |
6d6c815d | 2385 | value |= SOR_XBAR_CTRL_LINK0_XSEL(i, sor->xbar_cfg[i]) | |
30b49435 | 2386 | SOR_XBAR_CTRL_LINK1_XSEL(i, i); |
459cc2c6 TR |
2387 | |
2388 | tegra_sor_writel(sor, 0x00000000, SOR_XBAR_POL); | |
30b49435 | 2389 | tegra_sor_writel(sor, value, SOR_XBAR_CTRL); |
459cc2c6 | 2390 | |
61417aaa TR |
2391 | /* |
2392 | * Switch the pad clock to the DP clock. Note that we cannot actually | |
2393 | * do this because Tegra186 and later don't support clk_set_parent() | |
2394 | * on the sorX_pad_clkout clocks. We already do the equivalent above | |
2395 | * using the DP_CLK_SEL mux of the SOR_CLK_CNTRL register. | |
2396 | */ | |
2397 | #if 0 | |
2398 | err = clk_set_parent(sor->clk_pad, sor->clk_dp); | |
e1335e2f | 2399 | if (err < 0) { |
61417aaa TR |
2400 | dev_err(sor->dev, "failed to select pad parent clock: %d\n", |
2401 | err); | |
e1335e2f TR |
2402 | return; |
2403 | } | |
61417aaa | 2404 | #endif |
e1335e2f | 2405 | |
61417aaa | 2406 | /* switch the SOR clock to the pad clock */ |
e1335e2f TR |
2407 | err = tegra_sor_set_parent_clock(sor, sor->clk_pad); |
2408 | if (err < 0) { | |
61417aaa TR |
2409 | dev_err(sor->dev, "failed to select SOR parent clock: %d\n", |
2410 | err); | |
2411 | return; | |
2412 | } | |
2413 | ||
2414 | /* switch the output clock to the parent pixel clock */ | |
2415 | err = clk_set_parent(sor->clk, sor->clk_parent); | |
2416 | if (err < 0) { | |
2417 | dev_err(sor->dev, "failed to select output parent clock: %d\n", | |
2418 | err); | |
e1335e2f TR |
2419 | return; |
2420 | } | |
459cc2c6 | 2421 | |
36e90221 TR |
2422 | /* adjust clock rate for HDMI 2.0 modes */ |
2423 | rate = clk_get_rate(sor->clk_parent); | |
2424 | ||
2425 | if (mode->clock >= 340000) | |
2426 | rate /= 2; | |
2427 | ||
2428 | DRM_DEBUG_KMS("setting clock to %lu Hz, mode: %lu Hz\n", rate, pclk); | |
2429 | ||
2430 | clk_set_rate(sor->clk, rate); | |
459cc2c6 | 2431 | |
c57997bc TR |
2432 | if (!sor->soc->has_nvdisplay) { |
2433 | value = SOR_INPUT_CONTROL_HDMI_SRC_SELECT(dc->pipe); | |
459cc2c6 | 2434 | |
c57997bc TR |
2435 | /* XXX is this the proper check? */ |
2436 | if (mode->clock < 75000) | |
2437 | value |= SOR_INPUT_CONTROL_ARM_VIDEO_RANGE_LIMITED; | |
2438 | ||
2439 | tegra_sor_writel(sor, value, SOR_INPUT_CONTROL); | |
2440 | } | |
459cc2c6 TR |
2441 | |
2442 | max_ac = ((mode->htotal - mode->hdisplay) - SOR_REKEY - 18) / 32; | |
2443 | ||
2444 | value = SOR_HDMI_CTRL_ENABLE | SOR_HDMI_CTRL_MAX_AC_PACKET(max_ac) | | |
2445 | SOR_HDMI_CTRL_AUDIO_LAYOUT | SOR_HDMI_CTRL_REKEY(SOR_REKEY); | |
2446 | tegra_sor_writel(sor, value, SOR_HDMI_CTRL); | |
2447 | ||
c57997bc TR |
2448 | if (!dc->soc->has_nvdisplay) { |
2449 | /* H_PULSE2 setup */ | |
2450 | pulse_start = h_ref_to_sync + | |
2451 | (mode->hsync_end - mode->hsync_start) + | |
2452 | (mode->htotal - mode->hsync_end) - 10; | |
459cc2c6 | 2453 | |
c57997bc TR |
2454 | value = PULSE_LAST_END_A | PULSE_QUAL_VACTIVE | |
2455 | PULSE_POLARITY_HIGH | PULSE_MODE_NORMAL; | |
2456 | tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_CONTROL); | |
459cc2c6 | 2457 | |
c57997bc TR |
2458 | value = PULSE_END(pulse_start + 8) | PULSE_START(pulse_start); |
2459 | tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_POSITION_A); | |
459cc2c6 | 2460 | |
c57997bc TR |
2461 | value = tegra_dc_readl(dc, DC_DISP_DISP_SIGNAL_OPTIONS0); |
2462 | value |= H_PULSE2_ENABLE; | |
2463 | tegra_dc_writel(dc, value, DC_DISP_DISP_SIGNAL_OPTIONS0); | |
2464 | } | |
459cc2c6 TR |
2465 | |
2466 | /* infoframe setup */ | |
2467 | err = tegra_sor_hdmi_setup_avi_infoframe(sor, mode); | |
2468 | if (err < 0) | |
2469 | dev_err(sor->dev, "failed to setup AVI infoframe: %d\n", err); | |
2470 | ||
2471 | /* XXX HDMI audio support not implemented yet */ | |
2472 | tegra_sor_hdmi_disable_audio_infoframe(sor); | |
2473 | ||
2474 | /* use single TMDS protocol */ | |
2475 | value = tegra_sor_readl(sor, SOR_STATE1); | |
2476 | value &= ~SOR_STATE_ASY_PROTOCOL_MASK; | |
2477 | value |= SOR_STATE_ASY_PROTOCOL_SINGLE_TMDS_A; | |
2478 | tegra_sor_writel(sor, value, SOR_STATE1); | |
2479 | ||
2480 | /* power up pad calibration */ | |
880cee0b | 2481 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); |
459cc2c6 | 2482 | value &= ~SOR_DP_PADCTL_PAD_CAL_PD; |
880cee0b | 2483 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); |
459cc2c6 TR |
2484 | |
2485 | /* production settings */ | |
2486 | settings = tegra_sor_hdmi_find_settings(sor, mode->clock * 1000); | |
db8b42fb DC |
2487 | if (!settings) { |
2488 | dev_err(sor->dev, "no settings for pixel clock %d Hz\n", | |
2489 | mode->clock * 1000); | |
459cc2c6 TR |
2490 | return; |
2491 | } | |
2492 | ||
880cee0b | 2493 | value = tegra_sor_readl(sor, sor->soc->regs->pll0); |
459cc2c6 | 2494 | value &= ~SOR_PLL0_ICHPMP_MASK; |
c57997bc | 2495 | value &= ~SOR_PLL0_FILTER_MASK; |
459cc2c6 TR |
2496 | value &= ~SOR_PLL0_VCOCAP_MASK; |
2497 | value |= SOR_PLL0_ICHPMP(settings->ichpmp); | |
c57997bc | 2498 | value |= SOR_PLL0_FILTER(settings->filter); |
459cc2c6 | 2499 | value |= SOR_PLL0_VCOCAP(settings->vcocap); |
880cee0b | 2500 | tegra_sor_writel(sor, value, sor->soc->regs->pll0); |
459cc2c6 | 2501 | |
c57997bc | 2502 | /* XXX not in TRM */ |
880cee0b | 2503 | value = tegra_sor_readl(sor, sor->soc->regs->pll1); |
459cc2c6 | 2504 | value &= ~SOR_PLL1_LOADADJ_MASK; |
c57997bc | 2505 | value &= ~SOR_PLL1_TMDS_TERMADJ_MASK; |
459cc2c6 | 2506 | value |= SOR_PLL1_LOADADJ(settings->loadadj); |
c57997bc TR |
2507 | value |= SOR_PLL1_TMDS_TERMADJ(settings->tmds_termadj); |
2508 | value |= SOR_PLL1_TMDS_TERM; | |
880cee0b | 2509 | tegra_sor_writel(sor, value, sor->soc->regs->pll1); |
459cc2c6 | 2510 | |
880cee0b | 2511 | value = tegra_sor_readl(sor, sor->soc->regs->pll3); |
c57997bc | 2512 | value &= ~SOR_PLL3_BG_TEMP_COEF_MASK; |
459cc2c6 | 2513 | value &= ~SOR_PLL3_BG_VREF_LEVEL_MASK; |
c57997bc TR |
2514 | value &= ~SOR_PLL3_AVDD10_LEVEL_MASK; |
2515 | value &= ~SOR_PLL3_AVDD14_LEVEL_MASK; | |
2516 | value |= SOR_PLL3_BG_TEMP_COEF(settings->bg_temp_coef); | |
2517 | value |= SOR_PLL3_BG_VREF_LEVEL(settings->bg_vref_level); | |
2518 | value |= SOR_PLL3_AVDD10_LEVEL(settings->avdd10_level); | |
2519 | value |= SOR_PLL3_AVDD14_LEVEL(settings->avdd14_level); | |
880cee0b | 2520 | tegra_sor_writel(sor, value, sor->soc->regs->pll3); |
459cc2c6 | 2521 | |
c57997bc TR |
2522 | value = settings->drive_current[3] << 24 | |
2523 | settings->drive_current[2] << 16 | | |
2524 | settings->drive_current[1] << 8 | | |
2525 | settings->drive_current[0] << 0; | |
459cc2c6 TR |
2526 | tegra_sor_writel(sor, value, SOR_LANE_DRIVE_CURRENT0); |
2527 | ||
c57997bc TR |
2528 | value = settings->preemphasis[3] << 24 | |
2529 | settings->preemphasis[2] << 16 | | |
2530 | settings->preemphasis[1] << 8 | | |
2531 | settings->preemphasis[0] << 0; | |
459cc2c6 TR |
2532 | tegra_sor_writel(sor, value, SOR_LANE_PREEMPHASIS0); |
2533 | ||
880cee0b | 2534 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); |
459cc2c6 TR |
2535 | value &= ~SOR_DP_PADCTL_TX_PU_MASK; |
2536 | value |= SOR_DP_PADCTL_TX_PU_ENABLE; | |
c57997bc | 2537 | value |= SOR_DP_PADCTL_TX_PU(settings->tx_pu_value); |
880cee0b | 2538 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); |
459cc2c6 | 2539 | |
c57997bc TR |
2540 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl2); |
2541 | value &= ~SOR_DP_PADCTL_SPAREPLL_MASK; | |
2542 | value |= SOR_DP_PADCTL_SPAREPLL(settings->sparepll); | |
2543 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl2); | |
2544 | ||
459cc2c6 | 2545 | /* power down pad calibration */ |
880cee0b | 2546 | value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); |
459cc2c6 | 2547 | value |= SOR_DP_PADCTL_PAD_CAL_PD; |
880cee0b | 2548 | tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); |
459cc2c6 | 2549 | |
c57997bc TR |
2550 | if (!dc->soc->has_nvdisplay) { |
2551 | /* miscellaneous display controller settings */ | |
2552 | value = VSYNC_H_POSITION(1); | |
2553 | tegra_dc_writel(dc, value, DC_DISP_DISP_TIMING_OPTIONS); | |
2554 | } | |
459cc2c6 TR |
2555 | |
2556 | value = tegra_dc_readl(dc, DC_DISP_DISP_COLOR_CONTROL); | |
2557 | value &= ~DITHER_CONTROL_MASK; | |
2558 | value &= ~BASE_COLOR_SIZE_MASK; | |
2559 | ||
c31efa7a | 2560 | switch (state->bpc) { |
459cc2c6 TR |
2561 | case 6: |
2562 | value |= BASE_COLOR_SIZE_666; | |
2563 | break; | |
2564 | ||
2565 | case 8: | |
2566 | value |= BASE_COLOR_SIZE_888; | |
2567 | break; | |
2568 | ||
c57997bc TR |
2569 | case 10: |
2570 | value |= BASE_COLOR_SIZE_101010; | |
2571 | break; | |
2572 | ||
2573 | case 12: | |
2574 | value |= BASE_COLOR_SIZE_121212; | |
2575 | break; | |
2576 | ||
459cc2c6 | 2577 | default: |
c31efa7a TR |
2578 | WARN(1, "%u bits-per-color not supported\n", state->bpc); |
2579 | value |= BASE_COLOR_SIZE_888; | |
459cc2c6 TR |
2580 | break; |
2581 | } | |
2582 | ||
2583 | tegra_dc_writel(dc, value, DC_DISP_DISP_COLOR_CONTROL); | |
2584 | ||
c57997bc TR |
2585 | /* XXX set display head owner */ |
2586 | value = tegra_sor_readl(sor, SOR_STATE1); | |
2587 | value &= ~SOR_STATE_ASY_OWNER_MASK; | |
2588 | value |= SOR_STATE_ASY_OWNER(1 + dc->pipe); | |
2589 | tegra_sor_writel(sor, value, SOR_STATE1); | |
2590 | ||
459cc2c6 TR |
2591 | err = tegra_sor_power_up(sor, 250); |
2592 | if (err < 0) | |
2593 | dev_err(sor->dev, "failed to power up SOR: %d\n", err); | |
2594 | ||
2bd1dd39 | 2595 | /* configure dynamic range of output */ |
880cee0b | 2596 | value = tegra_sor_readl(sor, sor->soc->regs->head_state0 + dc->pipe); |
459cc2c6 TR |
2597 | value &= ~SOR_HEAD_STATE_RANGECOMPRESS_MASK; |
2598 | value &= ~SOR_HEAD_STATE_DYNRANGE_MASK; | |
880cee0b | 2599 | tegra_sor_writel(sor, value, sor->soc->regs->head_state0 + dc->pipe); |
459cc2c6 | 2600 | |
2bd1dd39 | 2601 | /* configure colorspace */ |
880cee0b | 2602 | value = tegra_sor_readl(sor, sor->soc->regs->head_state0 + dc->pipe); |
459cc2c6 TR |
2603 | value &= ~SOR_HEAD_STATE_COLORSPACE_MASK; |
2604 | value |= SOR_HEAD_STATE_COLORSPACE_RGB; | |
880cee0b | 2605 | tegra_sor_writel(sor, value, sor->soc->regs->head_state0 + dc->pipe); |
459cc2c6 | 2606 | |
c31efa7a | 2607 | tegra_sor_mode_set(sor, mode, state); |
459cc2c6 TR |
2608 | |
2609 | tegra_sor_update(sor); | |
2610 | ||
c57997bc TR |
2611 | /* program preamble timing in SOR (XXX) */ |
2612 | value = tegra_sor_readl(sor, SOR_DP_SPARE0); | |
2613 | value &= ~SOR_DP_SPARE_DISP_VIDEO_PREAMBLE; | |
2614 | tegra_sor_writel(sor, value, SOR_DP_SPARE0); | |
2615 | ||
459cc2c6 TR |
2616 | err = tegra_sor_attach(sor); |
2617 | if (err < 0) | |
2618 | dev_err(sor->dev, "failed to attach SOR: %d\n", err); | |
2619 | ||
2620 | /* enable display to SOR clock and generate HDMI preamble */ | |
2621 | value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); | |
c57997bc TR |
2622 | |
2623 | if (!sor->soc->has_nvdisplay) | |
d278e4a9 TR |
2624 | value |= SOR1_TIMING_CYA; |
2625 | ||
2626 | value |= SOR_ENABLE(sor->index); | |
c57997bc | 2627 | |
459cc2c6 TR |
2628 | tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); |
2629 | ||
c57997bc TR |
2630 | if (dc->soc->has_nvdisplay) { |
2631 | value = tegra_dc_readl(dc, DC_DISP_CORE_SOR_SET_CONTROL(sor->index)); | |
2632 | value &= ~PROTOCOL_MASK; | |
2633 | value |= PROTOCOL_SINGLE_TMDS_A; | |
2634 | tegra_dc_writel(dc, value, DC_DISP_CORE_SOR_SET_CONTROL(sor->index)); | |
2635 | } | |
2636 | ||
459cc2c6 TR |
2637 | tegra_dc_commit(dc); |
2638 | ||
2639 | err = tegra_sor_wakeup(sor); | |
2640 | if (err < 0) | |
2641 | dev_err(sor->dev, "failed to wakeup SOR: %d\n", err); | |
36e90221 TR |
2642 | |
2643 | tegra_sor_hdmi_scdc_start(sor); | |
8e2988a7 | 2644 | tegra_sor_audio_prepare(sor); |
459cc2c6 TR |
2645 | } |
2646 | ||
2647 | static const struct drm_encoder_helper_funcs tegra_sor_hdmi_helpers = { | |
2648 | .disable = tegra_sor_hdmi_disable, | |
2649 | .enable = tegra_sor_hdmi_enable, | |
2650 | .atomic_check = tegra_sor_encoder_atomic_check, | |
2651 | }; | |
2652 | ||
0472c21b TR |
2653 | static void tegra_sor_dp_disable(struct drm_encoder *encoder) |
2654 | { | |
2655 | struct tegra_output *output = encoder_to_output(encoder); | |
2656 | struct tegra_dc *dc = to_tegra_dc(encoder->crtc); | |
2657 | struct tegra_sor *sor = to_sor(output); | |
2658 | u32 value; | |
2659 | int err; | |
2660 | ||
d278e4a9 TR |
2661 | if (output->panel) |
2662 | drm_panel_disable(output->panel); | |
2663 | ||
68a2ebb5 TR |
2664 | /* |
2665 | * Do not attempt to power down a DP link if we're not connected since | |
2666 | * the AUX transactions would just be timing out. | |
2667 | */ | |
2668 | if (output->connector.status != connector_status_disconnected) { | |
2669 | err = drm_dp_link_power_down(sor->aux, &sor->link); | |
2670 | if (err < 0) | |
2671 | dev_err(sor->dev, "failed to power down link: %d\n", | |
2672 | err); | |
2673 | } | |
0472c21b TR |
2674 | |
2675 | err = tegra_sor_detach(sor); | |
2676 | if (err < 0) | |
2677 | dev_err(sor->dev, "failed to detach SOR: %d\n", err); | |
2678 | ||
2679 | tegra_sor_writel(sor, 0, SOR_STATE1); | |
2680 | tegra_sor_update(sor); | |
2681 | ||
2682 | value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); | |
d278e4a9 | 2683 | value &= ~SOR_ENABLE(sor->index); |
0472c21b TR |
2684 | tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); |
2685 | tegra_dc_commit(dc); | |
2686 | ||
2687 | value = tegra_sor_readl(sor, SOR_STATE1); | |
2688 | value &= ~SOR_STATE_ASY_PROTOCOL_MASK; | |
2689 | value &= ~SOR_STATE_ASY_SUBOWNER_MASK; | |
2690 | value &= ~SOR_STATE_ASY_OWNER_MASK; | |
2691 | tegra_sor_writel(sor, value, SOR_STATE1); | |
2692 | tegra_sor_update(sor); | |
2693 | ||
2694 | /* switch to safe parent clock */ | |
2695 | err = tegra_sor_set_parent_clock(sor, sor->clk_safe); | |
2696 | if (err < 0) | |
2697 | dev_err(sor->dev, "failed to set safe clock: %d\n", err); | |
2698 | ||
2699 | err = tegra_sor_power_down(sor); | |
2700 | if (err < 0) | |
2701 | dev_err(sor->dev, "failed to power down SOR: %d\n", err); | |
2702 | ||
2703 | err = tegra_io_pad_power_disable(sor->pad); | |
2704 | if (err < 0) | |
2705 | dev_err(sor->dev, "failed to power off I/O pad: %d\n", err); | |
2706 | ||
2707 | err = drm_dp_aux_disable(sor->aux); | |
2708 | if (err < 0) | |
2709 | dev_err(sor->dev, "failed disable DPAUX: %d\n", err); | |
2710 | ||
d278e4a9 TR |
2711 | if (output->panel) |
2712 | drm_panel_unprepare(output->panel); | |
2713 | ||
fd67e9c6 | 2714 | host1x_client_suspend(&sor->client); |
0472c21b TR |
2715 | } |
2716 | ||
2717 | static void tegra_sor_dp_enable(struct drm_encoder *encoder) | |
2718 | { | |
2719 | struct tegra_output *output = encoder_to_output(encoder); | |
2720 | struct tegra_dc *dc = to_tegra_dc(encoder->crtc); | |
2721 | struct tegra_sor *sor = to_sor(output); | |
2722 | struct tegra_sor_config config; | |
2723 | struct tegra_sor_state *state; | |
2724 | struct drm_display_mode *mode; | |
2725 | struct drm_display_info *info; | |
2726 | unsigned int i; | |
2727 | u32 value; | |
2728 | int err; | |
2729 | ||
2730 | state = to_sor_state(output->connector.state); | |
2731 | mode = &encoder->crtc->state->adjusted_mode; | |
2732 | info = &output->connector.display_info; | |
2733 | ||
fd67e9c6 TR |
2734 | err = host1x_client_resume(&sor->client); |
2735 | if (err < 0) { | |
2736 | dev_err(sor->dev, "failed to resume: %d\n", err); | |
2737 | return; | |
2738 | } | |
0472c21b TR |
2739 | |
2740 | /* switch to safe parent clock */ | |
2741 | err = tegra_sor_set_parent_clock(sor, sor->clk_safe); | |
2742 | if (err < 0) | |
2743 | dev_err(sor->dev, "failed to set safe parent clock: %d\n", err); | |
2744 | ||
2745 | err = tegra_io_pad_power_enable(sor->pad); | |
2746 | if (err < 0) | |
2747 | dev_err(sor->dev, "failed to power on LVDS rail: %d\n", err); | |
2748 | ||
2749 | usleep_range(20, 100); | |
2750 | ||
2751 | err = drm_dp_aux_enable(sor->aux); | |
2752 | if (err < 0) | |
2753 | dev_err(sor->dev, "failed to enable DPAUX: %d\n", err); | |
2754 | ||
2755 | err = drm_dp_link_probe(sor->aux, &sor->link); | |
2756 | if (err < 0) | |
2757 | dev_err(sor->dev, "failed to probe DP link: %d\n", err); | |
2758 | ||
d278e4a9 TR |
2759 | tegra_sor_filter_rates(sor); |
2760 | ||
0472c21b TR |
2761 | err = drm_dp_link_choose(&sor->link, mode, info); |
2762 | if (err < 0) | |
2763 | dev_err(sor->dev, "failed to choose link: %d\n", err); | |
2764 | ||
d278e4a9 TR |
2765 | if (output->panel) |
2766 | drm_panel_prepare(output->panel); | |
2767 | ||
0472c21b TR |
2768 | value = tegra_sor_readl(sor, sor->soc->regs->pll2); |
2769 | value &= ~SOR_PLL2_BANDGAP_POWERDOWN; | |
2770 | tegra_sor_writel(sor, value, sor->soc->regs->pll2); | |
2771 | ||
2772 | usleep_range(20, 40); | |
2773 | ||
2774 | value = tegra_sor_readl(sor, sor->soc->regs->pll3); | |
2775 | value |= SOR_PLL3_PLL_VDD_MODE_3V3; | |
2776 | tegra_sor_writel(sor, value, sor->soc->regs->pll3); | |
2777 | ||
2778 | value = tegra_sor_readl(sor, sor->soc->regs->pll0); | |
2779 | value &= ~(SOR_PLL0_VCOPD | SOR_PLL0_PWR); | |
2780 | tegra_sor_writel(sor, value, sor->soc->regs->pll0); | |
2781 | ||
2782 | value = tegra_sor_readl(sor, sor->soc->regs->pll2); | |
2783 | value &= ~SOR_PLL2_SEQ_PLLCAPPD_ENFORCE; | |
2784 | value |= SOR_PLL2_SEQ_PLLCAPPD; | |
2785 | tegra_sor_writel(sor, value, sor->soc->regs->pll2); | |
2786 | ||
2787 | usleep_range(200, 400); | |
2788 | ||
2789 | value = tegra_sor_readl(sor, sor->soc->regs->pll2); | |
2790 | value &= ~SOR_PLL2_POWERDOWN_OVERRIDE; | |
2791 | value &= ~SOR_PLL2_PORT_POWERDOWN; | |
2792 | tegra_sor_writel(sor, value, sor->soc->regs->pll2); | |
2793 | ||
2794 | value = tegra_sor_readl(sor, SOR_CLK_CNTRL); | |
2795 | value &= ~SOR_CLK_CNTRL_DP_CLK_SEL_MASK; | |
d278e4a9 TR |
2796 | |
2797 | if (output->panel) | |
2798 | value |= SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_DPCLK; | |
2799 | else | |
2800 | value |= SOR_CLK_CNTRL_DP_CLK_SEL_DIFF_DPCLK; | |
2801 | ||
0472c21b TR |
2802 | tegra_sor_writel(sor, value, SOR_CLK_CNTRL); |
2803 | ||
2804 | usleep_range(200, 400); | |
2805 | ||
2806 | value = tegra_sor_readl(sor, SOR_DP_SPARE0); | |
2807 | /* XXX not in TRM */ | |
d278e4a9 TR |
2808 | if (output->panel) |
2809 | value |= SOR_DP_SPARE_PANEL_INTERNAL; | |
2810 | else | |
2811 | value &= ~SOR_DP_SPARE_PANEL_INTERNAL; | |
2812 | ||
0472c21b TR |
2813 | value |= SOR_DP_SPARE_SEQ_ENABLE; |
2814 | tegra_sor_writel(sor, value, SOR_DP_SPARE0); | |
2815 | ||
2816 | /* XXX not in TRM */ | |
2817 | tegra_sor_writel(sor, 0, SOR_LVDS); | |
2818 | ||
2819 | value = tegra_sor_readl(sor, sor->soc->regs->pll0); | |
2820 | value &= ~SOR_PLL0_ICHPMP_MASK; | |
2821 | value &= ~SOR_PLL0_VCOCAP_MASK; | |
2822 | value |= SOR_PLL0_ICHPMP(0x1); | |
2823 | value |= SOR_PLL0_VCOCAP(0x3); | |
2824 | value |= SOR_PLL0_RESISTOR_EXT; | |
2825 | tegra_sor_writel(sor, value, sor->soc->regs->pll0); | |
2826 | ||
2827 | /* XXX not in TRM */ | |
2828 | for (value = 0, i = 0; i < 5; i++) | |
2829 | value |= SOR_XBAR_CTRL_LINK0_XSEL(i, sor->soc->xbar_cfg[i]) | | |
2830 | SOR_XBAR_CTRL_LINK1_XSEL(i, i); | |
2831 | ||
2832 | tegra_sor_writel(sor, 0x00000000, SOR_XBAR_POL); | |
2833 | tegra_sor_writel(sor, value, SOR_XBAR_CTRL); | |
2834 | ||
61417aaa TR |
2835 | /* |
2836 | * Switch the pad clock to the DP clock. Note that we cannot actually | |
2837 | * do this because Tegra186 and later don't support clk_set_parent() | |
2838 | * on the sorX_pad_clkout clocks. We already do the equivalent above | |
2839 | * using the DP_CLK_SEL mux of the SOR_CLK_CNTRL register. | |
2840 | */ | |
2841 | #if 0 | |
2842 | err = clk_set_parent(sor->clk_pad, sor->clk_parent); | |
2843 | if (err < 0) { | |
2844 | dev_err(sor->dev, "failed to select pad parent clock: %d\n", | |
2845 | err); | |
2846 | return; | |
2847 | } | |
2848 | #endif | |
2849 | ||
2850 | /* switch the SOR clock to the pad clock */ | |
0472c21b TR |
2851 | err = tegra_sor_set_parent_clock(sor, sor->clk_pad); |
2852 | if (err < 0) { | |
61417aaa TR |
2853 | dev_err(sor->dev, "failed to select SOR parent clock: %d\n", |
2854 | err); | |
0472c21b TR |
2855 | return; |
2856 | } | |
2857 | ||
61417aaa | 2858 | /* switch the output clock to the parent pixel clock */ |
0472c21b TR |
2859 | err = clk_set_parent(sor->clk, sor->clk_parent); |
2860 | if (err < 0) { | |
61417aaa TR |
2861 | dev_err(sor->dev, "failed to select output parent clock: %d\n", |
2862 | err); | |
0472c21b TR |
2863 | return; |
2864 | } | |
2865 | ||
2866 | /* use DP-A protocol */ | |
2867 | value = tegra_sor_readl(sor, SOR_STATE1); | |
2868 | value &= ~SOR_STATE_ASY_PROTOCOL_MASK; | |
2869 | value |= SOR_STATE_ASY_PROTOCOL_DP_A; | |
2870 | tegra_sor_writel(sor, value, SOR_STATE1); | |
2871 | ||
2872 | /* enable port */ | |
2873 | value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); | |
2874 | value |= SOR_DP_LINKCTL_ENABLE; | |
2875 | tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); | |
2876 | ||
2877 | tegra_sor_dp_term_calibrate(sor); | |
2878 | ||
2879 | err = drm_dp_link_train(&sor->link); | |
2880 | if (err < 0) | |
2881 | dev_err(sor->dev, "link training failed: %d\n", err); | |
2882 | else | |
2883 | dev_dbg(sor->dev, "link training succeeded\n"); | |
2884 | ||
2885 | err = drm_dp_link_power_up(sor->aux, &sor->link); | |
2886 | if (err < 0) | |
2887 | dev_err(sor->dev, "failed to power up DP link: %d\n", err); | |
2888 | ||
2889 | /* compute configuration */ | |
2890 | memset(&config, 0, sizeof(config)); | |
2891 | config.bits_per_pixel = state->bpc * 3; | |
2892 | ||
2893 | err = tegra_sor_compute_config(sor, mode, &config, &sor->link); | |
2894 | if (err < 0) | |
2895 | dev_err(sor->dev, "failed to compute configuration: %d\n", err); | |
2896 | ||
2897 | tegra_sor_apply_config(sor, &config); | |
2898 | tegra_sor_mode_set(sor, mode, state); | |
d278e4a9 TR |
2899 | |
2900 | if (output->panel) { | |
2901 | /* CSTM (LVDS, link A/B, upper) */ | |
2902 | value = SOR_CSTM_LVDS | SOR_CSTM_LINK_ACT_A | SOR_CSTM_LINK_ACT_B | | |
2903 | SOR_CSTM_UPPER; | |
2904 | tegra_sor_writel(sor, value, SOR_CSTM); | |
2905 | ||
2906 | /* PWM setup */ | |
2907 | err = tegra_sor_setup_pwm(sor, 250); | |
2908 | if (err < 0) | |
2909 | dev_err(sor->dev, "failed to setup PWM: %d\n", err); | |
2910 | } | |
2911 | ||
0472c21b TR |
2912 | tegra_sor_update(sor); |
2913 | ||
2914 | err = tegra_sor_power_up(sor, 250); | |
2915 | if (err < 0) | |
2916 | dev_err(sor->dev, "failed to power up SOR: %d\n", err); | |
2917 | ||
2918 | /* attach and wake up */ | |
2919 | err = tegra_sor_attach(sor); | |
2920 | if (err < 0) | |
2921 | dev_err(sor->dev, "failed to attach SOR: %d\n", err); | |
2922 | ||
2923 | value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); | |
2924 | value |= SOR_ENABLE(sor->index); | |
2925 | tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); | |
2926 | ||
2927 | tegra_dc_commit(dc); | |
2928 | ||
2929 | err = tegra_sor_wakeup(sor); | |
2930 | if (err < 0) | |
2931 | dev_err(sor->dev, "failed to wakeup SOR: %d\n", err); | |
d278e4a9 TR |
2932 | |
2933 | if (output->panel) | |
2934 | drm_panel_enable(output->panel); | |
0472c21b TR |
2935 | } |
2936 | ||
2937 | static const struct drm_encoder_helper_funcs tegra_sor_dp_helpers = { | |
2938 | .disable = tegra_sor_dp_disable, | |
2939 | .enable = tegra_sor_dp_enable, | |
2940 | .atomic_check = tegra_sor_encoder_atomic_check, | |
2941 | }; | |
2942 | ||
5c1d644c MZ |
2943 | static void tegra_sor_disable_regulator(void *data) |
2944 | { | |
2945 | struct regulator *reg = data; | |
2946 | ||
2947 | regulator_disable(reg); | |
2948 | } | |
2949 | ||
2950 | static int tegra_sor_enable_regulator(struct tegra_sor *sor, struct regulator *reg) | |
2951 | { | |
2952 | int err; | |
2953 | ||
2954 | err = regulator_enable(reg); | |
2955 | if (err) | |
2956 | return err; | |
2957 | ||
2958 | return devm_add_action_or_reset(sor->dev, tegra_sor_disable_regulator, reg); | |
2959 | } | |
2960 | ||
1c3cc0df TR |
2961 | static int tegra_sor_hdmi_probe(struct tegra_sor *sor) |
2962 | { | |
2963 | int err; | |
2964 | ||
5fba01a0 | 2965 | sor->avdd_io_supply = devm_regulator_get(sor->dev, "avdd-io-hdmi-dp"); |
d4281c01 CH |
2966 | if (IS_ERR(sor->avdd_io_supply)) |
2967 | return dev_err_probe(sor->dev, PTR_ERR(sor->avdd_io_supply), | |
2968 | "cannot get AVDD I/O supply\n"); | |
1c3cc0df | 2969 | |
5c1d644c | 2970 | err = tegra_sor_enable_regulator(sor, sor->avdd_io_supply); |
1c3cc0df TR |
2971 | if (err < 0) { |
2972 | dev_err(sor->dev, "failed to enable AVDD I/O supply: %d\n", | |
2973 | err); | |
2974 | return err; | |
2975 | } | |
2976 | ||
5fba01a0 | 2977 | sor->vdd_pll_supply = devm_regulator_get(sor->dev, "vdd-hdmi-dp-pll"); |
d4281c01 CH |
2978 | if (IS_ERR(sor->vdd_pll_supply)) |
2979 | return dev_err_probe(sor->dev, PTR_ERR(sor->vdd_pll_supply), | |
2980 | "cannot get VDD PLL supply\n"); | |
1c3cc0df | 2981 | |
5c1d644c | 2982 | err = tegra_sor_enable_regulator(sor, sor->vdd_pll_supply); |
1c3cc0df TR |
2983 | if (err < 0) { |
2984 | dev_err(sor->dev, "failed to enable VDD PLL supply: %d\n", | |
2985 | err); | |
2986 | return err; | |
2987 | } | |
2988 | ||
2989 | sor->hdmi_supply = devm_regulator_get(sor->dev, "hdmi"); | |
d4281c01 CH |
2990 | if (IS_ERR(sor->hdmi_supply)) |
2991 | return dev_err_probe(sor->dev, PTR_ERR(sor->hdmi_supply), | |
2992 | "cannot get HDMI supply\n"); | |
1c3cc0df | 2993 | |
5c1d644c | 2994 | err = tegra_sor_enable_regulator(sor, sor->hdmi_supply); |
1c3cc0df TR |
2995 | if (err < 0) { |
2996 | dev_err(sor->dev, "failed to enable HDMI supply: %d\n", err); | |
2997 | return err; | |
2998 | } | |
2999 | ||
3000 | INIT_DELAYED_WORK(&sor->scdc, tegra_sor_hdmi_scdc_work); | |
3001 | ||
3002 | return 0; | |
3003 | } | |
3004 | ||
1c3cc0df TR |
3005 | static const struct tegra_sor_ops tegra_sor_hdmi_ops = { |
3006 | .name = "HDMI", | |
3007 | .probe = tegra_sor_hdmi_probe, | |
85d0c4b5 TR |
3008 | .audio_enable = tegra_sor_hdmi_audio_enable, |
3009 | .audio_disable = tegra_sor_hdmi_audio_disable, | |
1c3cc0df TR |
3010 | }; |
3011 | ||
3012 | static int tegra_sor_dp_probe(struct tegra_sor *sor) | |
3013 | { | |
3014 | int err; | |
3015 | ||
3016 | sor->avdd_io_supply = devm_regulator_get(sor->dev, "avdd-io-hdmi-dp"); | |
3017 | if (IS_ERR(sor->avdd_io_supply)) | |
3018 | return PTR_ERR(sor->avdd_io_supply); | |
3019 | ||
5c1d644c | 3020 | err = tegra_sor_enable_regulator(sor, sor->avdd_io_supply); |
1c3cc0df TR |
3021 | if (err < 0) |
3022 | return err; | |
3023 | ||
3024 | sor->vdd_pll_supply = devm_regulator_get(sor->dev, "vdd-hdmi-dp-pll"); | |
3025 | if (IS_ERR(sor->vdd_pll_supply)) | |
3026 | return PTR_ERR(sor->vdd_pll_supply); | |
3027 | ||
5c1d644c | 3028 | err = tegra_sor_enable_regulator(sor, sor->vdd_pll_supply); |
1c3cc0df TR |
3029 | if (err < 0) |
3030 | return err; | |
3031 | ||
3032 | return 0; | |
3033 | } | |
3034 | ||
1c3cc0df TR |
3035 | static const struct tegra_sor_ops tegra_sor_dp_ops = { |
3036 | .name = "DP", | |
3037 | .probe = tegra_sor_dp_probe, | |
1c3cc0df TR |
3038 | }; |
3039 | ||
6b6b6042 TR |
3040 | static int tegra_sor_init(struct host1x_client *client) |
3041 | { | |
608f43ad | 3042 | struct drm_device *drm = dev_get_drvdata(client->host); |
459cc2c6 | 3043 | const struct drm_encoder_helper_funcs *helpers = NULL; |
6b6b6042 | 3044 | struct tegra_sor *sor = host1x_client_to_sor(client); |
459cc2c6 TR |
3045 | int connector = DRM_MODE_CONNECTOR_Unknown; |
3046 | int encoder = DRM_MODE_ENCODER_NONE; | |
6b6b6042 TR |
3047 | int err; |
3048 | ||
9542c237 | 3049 | if (!sor->aux) { |
1c3cc0df | 3050 | if (sor->ops == &tegra_sor_hdmi_ops) { |
459cc2c6 TR |
3051 | connector = DRM_MODE_CONNECTOR_HDMIA; |
3052 | encoder = DRM_MODE_ENCODER_TMDS; | |
3053 | helpers = &tegra_sor_hdmi_helpers; | |
3054 | } else if (sor->soc->supports_lvds) { | |
3055 | connector = DRM_MODE_CONNECTOR_LVDS; | |
3056 | encoder = DRM_MODE_ENCODER_LVDS; | |
3057 | } | |
3058 | } else { | |
d278e4a9 | 3059 | if (sor->output.panel) { |
459cc2c6 TR |
3060 | connector = DRM_MODE_CONNECTOR_eDP; |
3061 | encoder = DRM_MODE_ENCODER_TMDS; | |
d278e4a9 | 3062 | helpers = &tegra_sor_dp_helpers; |
1c3cc0df | 3063 | } else { |
459cc2c6 TR |
3064 | connector = DRM_MODE_CONNECTOR_DisplayPort; |
3065 | encoder = DRM_MODE_ENCODER_TMDS; | |
0472c21b | 3066 | helpers = &tegra_sor_dp_helpers; |
459cc2c6 | 3067 | } |
c1763937 TR |
3068 | |
3069 | sor->link.ops = &tegra_sor_dp_link_ops; | |
3070 | sor->link.aux = sor->aux; | |
459cc2c6 | 3071 | } |
6b6b6042 | 3072 | |
6b6b6042 | 3073 | sor->output.dev = sor->dev; |
6b6b6042 | 3074 | |
bb9d681b AP |
3075 | drm_connector_init_with_ddc(drm, &sor->output.connector, |
3076 | &tegra_sor_connector_funcs, | |
3077 | connector, | |
3078 | sor->output.ddc); | |
6fad8f66 TR |
3079 | drm_connector_helper_add(&sor->output.connector, |
3080 | &tegra_sor_connector_helper_funcs); | |
3081 | sor->output.connector.dpms = DRM_MODE_DPMS_OFF; | |
3082 | ||
4d0e95e0 | 3083 | drm_simple_encoder_init(drm, &sor->output.encoder, encoder); |
459cc2c6 | 3084 | drm_encoder_helper_add(&sor->output.encoder, helpers); |
6fad8f66 | 3085 | |
cde4c44d | 3086 | drm_connector_attach_encoder(&sor->output.connector, |
6fad8f66 TR |
3087 | &sor->output.encoder); |
3088 | drm_connector_register(&sor->output.connector); | |
3089 | ||
ea130b24 TR |
3090 | err = tegra_output_init(drm, &sor->output); |
3091 | if (err < 0) { | |
3092 | dev_err(client->dev, "failed to initialize output: %d\n", err); | |
3093 | return err; | |
3094 | } | |
6fad8f66 | 3095 | |
c57997bc | 3096 | tegra_output_find_possible_crtcs(&sor->output, drm); |
6b6b6042 | 3097 | |
9542c237 TR |
3098 | if (sor->aux) { |
3099 | err = drm_dp_aux_attach(sor->aux, &sor->output); | |
6b6b6042 TR |
3100 | if (err < 0) { |
3101 | dev_err(sor->dev, "failed to attach DP: %d\n", err); | |
3102 | return err; | |
3103 | } | |
3104 | } | |
3105 | ||
535a65db TV |
3106 | /* |
3107 | * XXX: Remove this reset once proper hand-over from firmware to | |
3108 | * kernel is possible. | |
3109 | */ | |
f8c79120 | 3110 | if (sor->rst) { |
ac097aec TR |
3111 | err = pm_runtime_resume_and_get(sor->dev); |
3112 | if (err < 0) { | |
3113 | dev_err(sor->dev, "failed to get runtime PM: %d\n", err); | |
3114 | return err; | |
3115 | } | |
3116 | ||
11c632e1 TR |
3117 | err = reset_control_acquire(sor->rst); |
3118 | if (err < 0) { | |
3119 | dev_err(sor->dev, "failed to acquire SOR reset: %d\n", | |
3120 | err); | |
73a395c4 | 3121 | goto rpm_put; |
11c632e1 TR |
3122 | } |
3123 | ||
f8c79120 JH |
3124 | err = reset_control_assert(sor->rst); |
3125 | if (err < 0) { | |
3126 | dev_err(sor->dev, "failed to assert SOR reset: %d\n", | |
3127 | err); | |
73a395c4 | 3128 | goto rpm_put; |
f8c79120 | 3129 | } |
535a65db TV |
3130 | } |
3131 | ||
6fad8f66 TR |
3132 | err = clk_prepare_enable(sor->clk); |
3133 | if (err < 0) { | |
3134 | dev_err(sor->dev, "failed to enable clock: %d\n", err); | |
73a395c4 | 3135 | goto rpm_put; |
6fad8f66 TR |
3136 | } |
3137 | ||
535a65db TV |
3138 | usleep_range(1000, 3000); |
3139 | ||
f8c79120 JH |
3140 | if (sor->rst) { |
3141 | err = reset_control_deassert(sor->rst); | |
3142 | if (err < 0) { | |
3143 | dev_err(sor->dev, "failed to deassert SOR reset: %d\n", | |
3144 | err); | |
bf3a3cdc | 3145 | clk_disable_unprepare(sor->clk); |
73a395c4 | 3146 | goto rpm_put; |
f8c79120 | 3147 | } |
11c632e1 TR |
3148 | |
3149 | reset_control_release(sor->rst); | |
ac097aec | 3150 | pm_runtime_put(sor->dev); |
535a65db TV |
3151 | } |
3152 | ||
6fad8f66 | 3153 | err = clk_prepare_enable(sor->clk_safe); |
bf3a3cdc QM |
3154 | if (err < 0) { |
3155 | clk_disable_unprepare(sor->clk); | |
6fad8f66 | 3156 | return err; |
bf3a3cdc | 3157 | } |
6fad8f66 TR |
3158 | |
3159 | err = clk_prepare_enable(sor->clk_dp); | |
bf3a3cdc QM |
3160 | if (err < 0) { |
3161 | clk_disable_unprepare(sor->clk_safe); | |
3162 | clk_disable_unprepare(sor->clk); | |
6fad8f66 | 3163 | return err; |
bf3a3cdc | 3164 | } |
6fad8f66 | 3165 | |
6b6b6042 | 3166 | return 0; |
73a395c4 PMC |
3167 | |
3168 | rpm_put: | |
3169 | if (sor->rst) | |
3170 | pm_runtime_put(sor->dev); | |
3171 | ||
3172 | return err; | |
6b6b6042 TR |
3173 | } |
3174 | ||
3175 | static int tegra_sor_exit(struct host1x_client *client) | |
3176 | { | |
3177 | struct tegra_sor *sor = host1x_client_to_sor(client); | |
3178 | int err; | |
3179 | ||
328ec69e TR |
3180 | tegra_output_exit(&sor->output); |
3181 | ||
9542c237 TR |
3182 | if (sor->aux) { |
3183 | err = drm_dp_aux_detach(sor->aux); | |
6b6b6042 TR |
3184 | if (err < 0) { |
3185 | dev_err(sor->dev, "failed to detach DP: %d\n", err); | |
3186 | return err; | |
3187 | } | |
3188 | } | |
3189 | ||
6fad8f66 TR |
3190 | clk_disable_unprepare(sor->clk_safe); |
3191 | clk_disable_unprepare(sor->clk_dp); | |
3192 | clk_disable_unprepare(sor->clk); | |
3193 | ||
6b6b6042 TR |
3194 | return 0; |
3195 | } | |
3196 | ||
fd67e9c6 TR |
3197 | static int tegra_sor_runtime_suspend(struct host1x_client *client) |
3198 | { | |
3199 | struct tegra_sor *sor = host1x_client_to_sor(client); | |
3200 | struct device *dev = client->dev; | |
3201 | int err; | |
3202 | ||
3203 | if (sor->rst) { | |
3204 | err = reset_control_assert(sor->rst); | |
3205 | if (err < 0) { | |
3206 | dev_err(dev, "failed to assert reset: %d\n", err); | |
3207 | return err; | |
3208 | } | |
3209 | ||
3210 | reset_control_release(sor->rst); | |
3211 | } | |
3212 | ||
3213 | usleep_range(1000, 2000); | |
3214 | ||
3215 | clk_disable_unprepare(sor->clk); | |
3216 | pm_runtime_put_sync(dev); | |
3217 | ||
3218 | return 0; | |
3219 | } | |
3220 | ||
3221 | static int tegra_sor_runtime_resume(struct host1x_client *client) | |
3222 | { | |
3223 | struct tegra_sor *sor = host1x_client_to_sor(client); | |
3224 | struct device *dev = client->dev; | |
3225 | int err; | |
3226 | ||
dcdfe271 | 3227 | err = pm_runtime_resume_and_get(dev); |
fd67e9c6 TR |
3228 | if (err < 0) { |
3229 | dev_err(dev, "failed to get runtime PM: %d\n", err); | |
3230 | return err; | |
3231 | } | |
3232 | ||
3233 | err = clk_prepare_enable(sor->clk); | |
3234 | if (err < 0) { | |
3235 | dev_err(dev, "failed to enable clock: %d\n", err); | |
3236 | goto put_rpm; | |
3237 | } | |
3238 | ||
3239 | usleep_range(1000, 2000); | |
3240 | ||
3241 | if (sor->rst) { | |
3242 | err = reset_control_acquire(sor->rst); | |
3243 | if (err < 0) { | |
3244 | dev_err(dev, "failed to acquire reset: %d\n", err); | |
3245 | goto disable_clk; | |
3246 | } | |
3247 | ||
3248 | err = reset_control_deassert(sor->rst); | |
3249 | if (err < 0) { | |
3250 | dev_err(dev, "failed to deassert reset: %d\n", err); | |
3251 | goto release_reset; | |
3252 | } | |
3253 | } | |
3254 | ||
3255 | return 0; | |
3256 | ||
3257 | release_reset: | |
3258 | reset_control_release(sor->rst); | |
3259 | disable_clk: | |
3260 | clk_disable_unprepare(sor->clk); | |
3261 | put_rpm: | |
3262 | pm_runtime_put_sync(dev); | |
3263 | return err; | |
3264 | } | |
3265 | ||
6b6b6042 TR |
3266 | static const struct host1x_client_ops sor_client_ops = { |
3267 | .init = tegra_sor_init, | |
3268 | .exit = tegra_sor_exit, | |
fd67e9c6 TR |
3269 | .suspend = tegra_sor_runtime_suspend, |
3270 | .resume = tegra_sor_runtime_resume, | |
6b6b6042 TR |
3271 | }; |
3272 | ||
30b49435 TR |
3273 | static const u8 tegra124_sor_xbar_cfg[5] = { |
3274 | 0, 1, 2, 3, 4 | |
3275 | }; | |
3276 | ||
880cee0b TR |
3277 | static const struct tegra_sor_regs tegra124_sor_regs = { |
3278 | .head_state0 = 0x05, | |
3279 | .head_state1 = 0x07, | |
3280 | .head_state2 = 0x09, | |
3281 | .head_state3 = 0x0b, | |
3282 | .head_state4 = 0x0d, | |
3283 | .head_state5 = 0x0f, | |
3284 | .pll0 = 0x17, | |
3285 | .pll1 = 0x18, | |
3286 | .pll2 = 0x19, | |
3287 | .pll3 = 0x1a, | |
3288 | .dp_padctl0 = 0x5c, | |
3289 | .dp_padctl2 = 0x73, | |
3290 | }; | |
3291 | ||
c1763937 TR |
3292 | /* Tegra124 and Tegra132 have lanes 0 and 2 swapped. */ |
3293 | static const u8 tegra124_sor_lane_map[4] = { | |
3294 | 2, 1, 0, 3, | |
3295 | }; | |
3296 | ||
3297 | static const u8 tegra124_sor_voltage_swing[4][4][4] = { | |
3298 | { | |
3299 | { 0x13, 0x19, 0x1e, 0x28 }, | |
3300 | { 0x1e, 0x25, 0x2d, }, | |
3301 | { 0x28, 0x32, }, | |
3302 | { 0x3c, }, | |
3303 | }, { | |
3304 | { 0x12, 0x17, 0x1b, 0x25 }, | |
3305 | { 0x1c, 0x23, 0x2a, }, | |
3306 | { 0x25, 0x2f, }, | |
3307 | { 0x39, } | |
3308 | }, { | |
3309 | { 0x12, 0x16, 0x1a, 0x22 }, | |
3310 | { 0x1b, 0x20, 0x27, }, | |
3311 | { 0x24, 0x2d, }, | |
3312 | { 0x36, }, | |
3313 | }, { | |
3314 | { 0x11, 0x14, 0x17, 0x1f }, | |
3315 | { 0x19, 0x1e, 0x24, }, | |
3316 | { 0x22, 0x2a, }, | |
3317 | { 0x32, }, | |
3318 | }, | |
3319 | }; | |
3320 | ||
3321 | static const u8 tegra124_sor_pre_emphasis[4][4][4] = { | |
3322 | { | |
3323 | { 0x00, 0x09, 0x13, 0x25 }, | |
3324 | { 0x00, 0x0f, 0x1e, }, | |
3325 | { 0x00, 0x14, }, | |
3326 | { 0x00, }, | |
3327 | }, { | |
3328 | { 0x00, 0x0a, 0x14, 0x28 }, | |
3329 | { 0x00, 0x0f, 0x1e, }, | |
3330 | { 0x00, 0x14, }, | |
3331 | { 0x00 }, | |
3332 | }, { | |
3333 | { 0x00, 0x0a, 0x14, 0x28 }, | |
3334 | { 0x00, 0x0f, 0x1e, }, | |
3335 | { 0x00, 0x14, }, | |
3336 | { 0x00, }, | |
3337 | }, { | |
3338 | { 0x00, 0x0a, 0x14, 0x28 }, | |
3339 | { 0x00, 0x0f, 0x1e, }, | |
3340 | { 0x00, 0x14, }, | |
3341 | { 0x00, }, | |
3342 | }, | |
3343 | }; | |
3344 | ||
3345 | static const u8 tegra124_sor_post_cursor[4][4][4] = { | |
3346 | { | |
3347 | { 0x00, 0x00, 0x00, 0x00 }, | |
3348 | { 0x00, 0x00, 0x00, }, | |
3349 | { 0x00, 0x00, }, | |
3350 | { 0x00, }, | |
3351 | }, { | |
3352 | { 0x02, 0x02, 0x04, 0x05 }, | |
3353 | { 0x02, 0x04, 0x05, }, | |
3354 | { 0x04, 0x05, }, | |
3355 | { 0x05, }, | |
3356 | }, { | |
3357 | { 0x04, 0x05, 0x08, 0x0b }, | |
3358 | { 0x05, 0x09, 0x0b, }, | |
3359 | { 0x08, 0x0a, }, | |
3360 | { 0x0b, }, | |
3361 | }, { | |
3362 | { 0x05, 0x09, 0x0b, 0x12 }, | |
3363 | { 0x09, 0x0d, 0x12, }, | |
3364 | { 0x0b, 0x0f, }, | |
3365 | { 0x12, }, | |
3366 | }, | |
3367 | }; | |
3368 | ||
3369 | static const u8 tegra124_sor_tx_pu[4][4][4] = { | |
3370 | { | |
3371 | { 0x20, 0x30, 0x40, 0x60 }, | |
3372 | { 0x30, 0x40, 0x60, }, | |
3373 | { 0x40, 0x60, }, | |
3374 | { 0x60, }, | |
3375 | }, { | |
3376 | { 0x20, 0x20, 0x30, 0x50 }, | |
3377 | { 0x30, 0x40, 0x50, }, | |
3378 | { 0x40, 0x50, }, | |
3379 | { 0x60, }, | |
3380 | }, { | |
3381 | { 0x20, 0x20, 0x30, 0x40, }, | |
3382 | { 0x30, 0x30, 0x40, }, | |
3383 | { 0x40, 0x50, }, | |
3384 | { 0x60, }, | |
3385 | }, { | |
3386 | { 0x20, 0x20, 0x20, 0x40, }, | |
3387 | { 0x30, 0x30, 0x40, }, | |
3388 | { 0x40, 0x40, }, | |
3389 | { 0x60, }, | |
3390 | }, | |
3391 | }; | |
3392 | ||
459cc2c6 | 3393 | static const struct tegra_sor_soc tegra124_sor = { |
459cc2c6 TR |
3394 | .supports_lvds = true, |
3395 | .supports_hdmi = false, | |
d278e4a9 TR |
3396 | .supports_dp = true, |
3397 | .supports_audio = false, | |
3398 | .supports_hdcp = false, | |
880cee0b | 3399 | .regs = &tegra124_sor_regs, |
c57997bc | 3400 | .has_nvdisplay = false, |
30b49435 | 3401 | .xbar_cfg = tegra124_sor_xbar_cfg, |
c1763937 TR |
3402 | .lane_map = tegra124_sor_lane_map, |
3403 | .voltage_swing = tegra124_sor_voltage_swing, | |
3404 | .pre_emphasis = tegra124_sor_pre_emphasis, | |
3405 | .post_cursor = tegra124_sor_post_cursor, | |
3406 | .tx_pu = tegra124_sor_tx_pu, | |
3407 | }; | |
3408 | ||
3409 | static const u8 tegra132_sor_pre_emphasis[4][4][4] = { | |
3410 | { | |
3411 | { 0x00, 0x08, 0x12, 0x24 }, | |
3412 | { 0x01, 0x0e, 0x1d, }, | |
3413 | { 0x01, 0x13, }, | |
3414 | { 0x00, }, | |
3415 | }, { | |
3416 | { 0x00, 0x08, 0x12, 0x24 }, | |
3417 | { 0x00, 0x0e, 0x1d, }, | |
3418 | { 0x00, 0x13, }, | |
3419 | { 0x00 }, | |
3420 | }, { | |
3421 | { 0x00, 0x08, 0x12, 0x24 }, | |
3422 | { 0x00, 0x0e, 0x1d, }, | |
3423 | { 0x00, 0x13, }, | |
3424 | { 0x00, }, | |
3425 | }, { | |
3426 | { 0x00, 0x08, 0x12, 0x24 }, | |
3427 | { 0x00, 0x0e, 0x1d, }, | |
3428 | { 0x00, 0x13, }, | |
3429 | { 0x00, }, | |
3430 | }, | |
3431 | }; | |
3432 | ||
3433 | static const struct tegra_sor_soc tegra132_sor = { | |
c1763937 TR |
3434 | .supports_lvds = true, |
3435 | .supports_hdmi = false, | |
d278e4a9 TR |
3436 | .supports_dp = true, |
3437 | .supports_audio = false, | |
3438 | .supports_hdcp = false, | |
c1763937 TR |
3439 | .regs = &tegra124_sor_regs, |
3440 | .has_nvdisplay = false, | |
3441 | .xbar_cfg = tegra124_sor_xbar_cfg, | |
3442 | .lane_map = tegra124_sor_lane_map, | |
3443 | .voltage_swing = tegra124_sor_voltage_swing, | |
3444 | .pre_emphasis = tegra132_sor_pre_emphasis, | |
3445 | .post_cursor = tegra124_sor_post_cursor, | |
3446 | .tx_pu = tegra124_sor_tx_pu, | |
459cc2c6 TR |
3447 | }; |
3448 | ||
880cee0b TR |
3449 | static const struct tegra_sor_regs tegra210_sor_regs = { |
3450 | .head_state0 = 0x05, | |
3451 | .head_state1 = 0x07, | |
3452 | .head_state2 = 0x09, | |
3453 | .head_state3 = 0x0b, | |
3454 | .head_state4 = 0x0d, | |
3455 | .head_state5 = 0x0f, | |
3456 | .pll0 = 0x17, | |
3457 | .pll1 = 0x18, | |
3458 | .pll2 = 0x19, | |
3459 | .pll3 = 0x1a, | |
3460 | .dp_padctl0 = 0x5c, | |
3461 | .dp_padctl2 = 0x73, | |
3462 | }; | |
3463 | ||
c1763937 TR |
3464 | static const u8 tegra210_sor_xbar_cfg[5] = { |
3465 | 2, 1, 0, 3, 4 | |
3466 | }; | |
3467 | ||
0472c21b TR |
3468 | static const u8 tegra210_sor_lane_map[4] = { |
3469 | 0, 1, 2, 3, | |
3470 | }; | |
3471 | ||
459cc2c6 | 3472 | static const struct tegra_sor_soc tegra210_sor = { |
459cc2c6 TR |
3473 | .supports_lvds = false, |
3474 | .supports_hdmi = false, | |
d278e4a9 TR |
3475 | .supports_dp = true, |
3476 | .supports_audio = false, | |
3477 | .supports_hdcp = false, | |
c1763937 | 3478 | |
880cee0b | 3479 | .regs = &tegra210_sor_regs, |
c57997bc | 3480 | .has_nvdisplay = false, |
30b49435 | 3481 | |
c1763937 | 3482 | .xbar_cfg = tegra210_sor_xbar_cfg, |
0472c21b TR |
3483 | .lane_map = tegra210_sor_lane_map, |
3484 | .voltage_swing = tegra124_sor_voltage_swing, | |
3485 | .pre_emphasis = tegra124_sor_pre_emphasis, | |
3486 | .post_cursor = tegra124_sor_post_cursor, | |
3487 | .tx_pu = tegra124_sor_tx_pu, | |
459cc2c6 TR |
3488 | }; |
3489 | ||
3490 | static const struct tegra_sor_soc tegra210_sor1 = { | |
459cc2c6 TR |
3491 | .supports_lvds = false, |
3492 | .supports_hdmi = true, | |
3493 | .supports_dp = true, | |
d278e4a9 TR |
3494 | .supports_audio = true, |
3495 | .supports_hdcp = true, | |
459cc2c6 | 3496 | |
880cee0b | 3497 | .regs = &tegra210_sor_regs, |
c57997bc | 3498 | .has_nvdisplay = false, |
880cee0b | 3499 | |
459cc2c6 TR |
3500 | .num_settings = ARRAY_SIZE(tegra210_sor_hdmi_defaults), |
3501 | .settings = tegra210_sor_hdmi_defaults, | |
30b49435 | 3502 | .xbar_cfg = tegra210_sor_xbar_cfg, |
0472c21b TR |
3503 | .lane_map = tegra210_sor_lane_map, |
3504 | .voltage_swing = tegra124_sor_voltage_swing, | |
3505 | .pre_emphasis = tegra124_sor_pre_emphasis, | |
3506 | .post_cursor = tegra124_sor_post_cursor, | |
3507 | .tx_pu = tegra124_sor_tx_pu, | |
459cc2c6 TR |
3508 | }; |
3509 | ||
c57997bc TR |
3510 | static const struct tegra_sor_regs tegra186_sor_regs = { |
3511 | .head_state0 = 0x151, | |
3512 | .head_state1 = 0x154, | |
3513 | .head_state2 = 0x157, | |
3514 | .head_state3 = 0x15a, | |
3515 | .head_state4 = 0x15d, | |
3516 | .head_state5 = 0x160, | |
3517 | .pll0 = 0x163, | |
3518 | .pll1 = 0x164, | |
3519 | .pll2 = 0x165, | |
3520 | .pll3 = 0x166, | |
3521 | .dp_padctl0 = 0x168, | |
3522 | .dp_padctl2 = 0x16a, | |
3523 | }; | |
3524 | ||
0472c21b TR |
3525 | static const u8 tegra186_sor_voltage_swing[4][4][4] = { |
3526 | { | |
3527 | { 0x13, 0x19, 0x1e, 0x28 }, | |
3528 | { 0x1e, 0x25, 0x2d, }, | |
3529 | { 0x28, 0x32, }, | |
3530 | { 0x39, }, | |
3531 | }, { | |
3532 | { 0x12, 0x16, 0x1b, 0x25 }, | |
3533 | { 0x1c, 0x23, 0x2a, }, | |
3534 | { 0x25, 0x2f, }, | |
3535 | { 0x37, } | |
3536 | }, { | |
3537 | { 0x12, 0x16, 0x1a, 0x22 }, | |
3538 | { 0x1b, 0x20, 0x27, }, | |
3539 | { 0x24, 0x2d, }, | |
3540 | { 0x35, }, | |
3541 | }, { | |
3542 | { 0x11, 0x14, 0x17, 0x1f }, | |
3543 | { 0x19, 0x1e, 0x24, }, | |
3544 | { 0x22, 0x2a, }, | |
3545 | { 0x32, }, | |
3546 | }, | |
3547 | }; | |
3548 | ||
3549 | static const u8 tegra186_sor_pre_emphasis[4][4][4] = { | |
3550 | { | |
3551 | { 0x00, 0x08, 0x12, 0x24 }, | |
3552 | { 0x01, 0x0e, 0x1d, }, | |
3553 | { 0x01, 0x13, }, | |
3554 | { 0x00, }, | |
3555 | }, { | |
3556 | { 0x00, 0x08, 0x12, 0x24 }, | |
3557 | { 0x00, 0x0e, 0x1d, }, | |
3558 | { 0x00, 0x13, }, | |
3559 | { 0x00 }, | |
3560 | }, { | |
3561 | { 0x00, 0x08, 0x14, 0x24 }, | |
3562 | { 0x00, 0x0e, 0x1d, }, | |
3563 | { 0x00, 0x13, }, | |
3564 | { 0x00, }, | |
3565 | }, { | |
3566 | { 0x00, 0x08, 0x12, 0x24 }, | |
3567 | { 0x00, 0x0e, 0x1d, }, | |
3568 | { 0x00, 0x13, }, | |
3569 | { 0x00, }, | |
3570 | }, | |
3571 | }; | |
3572 | ||
c57997bc | 3573 | static const struct tegra_sor_soc tegra186_sor = { |
c57997bc TR |
3574 | .supports_lvds = false, |
3575 | .supports_hdmi = true, | |
3576 | .supports_dp = true, | |
d278e4a9 TR |
3577 | .supports_audio = true, |
3578 | .supports_hdcp = true, | |
c57997bc TR |
3579 | |
3580 | .regs = &tegra186_sor_regs, | |
3581 | .has_nvdisplay = true, | |
3582 | ||
3583 | .num_settings = ARRAY_SIZE(tegra186_sor_hdmi_defaults), | |
3584 | .settings = tegra186_sor_hdmi_defaults, | |
c57997bc | 3585 | .xbar_cfg = tegra124_sor_xbar_cfg, |
0472c21b TR |
3586 | .lane_map = tegra124_sor_lane_map, |
3587 | .voltage_swing = tegra186_sor_voltage_swing, | |
3588 | .pre_emphasis = tegra186_sor_pre_emphasis, | |
3589 | .post_cursor = tegra124_sor_post_cursor, | |
3590 | .tx_pu = tegra124_sor_tx_pu, | |
c57997bc TR |
3591 | }; |
3592 | ||
9b6c14b8 TR |
3593 | static const struct tegra_sor_regs tegra194_sor_regs = { |
3594 | .head_state0 = 0x151, | |
3595 | .head_state1 = 0x155, | |
3596 | .head_state2 = 0x159, | |
3597 | .head_state3 = 0x15d, | |
3598 | .head_state4 = 0x161, | |
3599 | .head_state5 = 0x165, | |
3600 | .pll0 = 0x169, | |
3601 | .pll1 = 0x16a, | |
3602 | .pll2 = 0x16b, | |
3603 | .pll3 = 0x16c, | |
3604 | .dp_padctl0 = 0x16e, | |
3605 | .dp_padctl2 = 0x16f, | |
3606 | }; | |
3607 | ||
3608 | static const struct tegra_sor_soc tegra194_sor = { | |
9b6c14b8 TR |
3609 | .supports_lvds = false, |
3610 | .supports_hdmi = true, | |
3611 | .supports_dp = true, | |
d278e4a9 TR |
3612 | .supports_audio = true, |
3613 | .supports_hdcp = true, | |
9b6c14b8 TR |
3614 | |
3615 | .regs = &tegra194_sor_regs, | |
3616 | .has_nvdisplay = true, | |
3617 | ||
3618 | .num_settings = ARRAY_SIZE(tegra194_sor_hdmi_defaults), | |
3619 | .settings = tegra194_sor_hdmi_defaults, | |
3620 | ||
3621 | .xbar_cfg = tegra210_sor_xbar_cfg, | |
bae88815 TR |
3622 | .lane_map = tegra124_sor_lane_map, |
3623 | .voltage_swing = tegra186_sor_voltage_swing, | |
3624 | .pre_emphasis = tegra186_sor_pre_emphasis, | |
3625 | .post_cursor = tegra124_sor_post_cursor, | |
3626 | .tx_pu = tegra124_sor_tx_pu, | |
9b6c14b8 TR |
3627 | }; |
3628 | ||
459cc2c6 | 3629 | static const struct of_device_id tegra_sor_of_match[] = { |
9b6c14b8 | 3630 | { .compatible = "nvidia,tegra194-sor", .data = &tegra194_sor }, |
c57997bc | 3631 | { .compatible = "nvidia,tegra186-sor", .data = &tegra186_sor }, |
459cc2c6 TR |
3632 | { .compatible = "nvidia,tegra210-sor1", .data = &tegra210_sor1 }, |
3633 | { .compatible = "nvidia,tegra210-sor", .data = &tegra210_sor }, | |
c1763937 | 3634 | { .compatible = "nvidia,tegra132-sor", .data = &tegra132_sor }, |
459cc2c6 TR |
3635 | { .compatible = "nvidia,tegra124-sor", .data = &tegra124_sor }, |
3636 | { }, | |
3637 | }; | |
3638 | MODULE_DEVICE_TABLE(of, tegra_sor_of_match); | |
3639 | ||
c57997bc TR |
3640 | static int tegra_sor_parse_dt(struct tegra_sor *sor) |
3641 | { | |
3642 | struct device_node *np = sor->dev->of_node; | |
6d6c815d TR |
3643 | u32 xbar_cfg[5]; |
3644 | unsigned int i; | |
c57997bc TR |
3645 | u32 value; |
3646 | int err; | |
3647 | ||
3648 | if (sor->soc->has_nvdisplay) { | |
3649 | err = of_property_read_u32(np, "nvidia,interface", &value); | |
3650 | if (err < 0) | |
3651 | return err; | |
3652 | ||
3653 | sor->index = value; | |
3654 | ||
3655 | /* | |
3656 | * override the default that we already set for Tegra210 and | |
3657 | * earlier | |
3658 | */ | |
3659 | sor->pad = TEGRA_IO_PAD_HDMI_DP0 + sor->index; | |
24e64f86 | 3660 | } else { |
d278e4a9 | 3661 | if (!sor->soc->supports_audio) |
24e64f86 TR |
3662 | sor->index = 0; |
3663 | else | |
3664 | sor->index = 1; | |
c57997bc TR |
3665 | } |
3666 | ||
6d6c815d TR |
3667 | err = of_property_read_u32_array(np, "nvidia,xbar-cfg", xbar_cfg, 5); |
3668 | if (err < 0) { | |
3669 | /* fall back to default per-SoC XBAR configuration */ | |
3670 | for (i = 0; i < 5; i++) | |
3671 | sor->xbar_cfg[i] = sor->soc->xbar_cfg[i]; | |
3672 | } else { | |
3673 | /* copy cells to SOR XBAR configuration */ | |
3674 | for (i = 0; i < 5; i++) | |
3675 | sor->xbar_cfg[i] = xbar_cfg[i]; | |
3676 | } | |
8e2988a7 | 3677 | |
c57997bc | 3678 | return 0; |
8e2988a7 TR |
3679 | } |
3680 | ||
3681 | static irqreturn_t tegra_sor_irq(int irq, void *data) | |
3682 | { | |
3683 | struct tegra_sor *sor = data; | |
3684 | u32 value; | |
3685 | ||
3686 | value = tegra_sor_readl(sor, SOR_INT_STATUS); | |
3687 | tegra_sor_writel(sor, value, SOR_INT_STATUS); | |
3688 | ||
3689 | if (value & SOR_INT_CODEC_SCRATCH0) { | |
3690 | value = tegra_sor_readl(sor, SOR_AUDIO_HDA_CODEC_SCRATCH0); | |
3691 | ||
3692 | if (value & SOR_AUDIO_HDA_CODEC_SCRATCH0_VALID) { | |
cd54fb96 | 3693 | unsigned int format; |
8e2988a7 TR |
3694 | |
3695 | format = value & SOR_AUDIO_HDA_CODEC_SCRATCH0_FMT_MASK; | |
3696 | ||
fad7b806 | 3697 | tegra_hda_parse_format(format, &sor->format); |
8e2988a7 | 3698 | |
85d0c4b5 TR |
3699 | if (sor->ops->audio_enable) |
3700 | sor->ops->audio_enable(sor); | |
8e2988a7 | 3701 | } else { |
85d0c4b5 TR |
3702 | if (sor->ops->audio_disable) |
3703 | sor->ops->audio_disable(sor); | |
8e2988a7 TR |
3704 | } |
3705 | } | |
3706 | ||
3707 | return IRQ_HANDLED; | |
3708 | } | |
3709 | ||
6b6b6042 TR |
3710 | static int tegra_sor_probe(struct platform_device *pdev) |
3711 | { | |
3712 | struct device_node *np; | |
3713 | struct tegra_sor *sor; | |
6b6b6042 TR |
3714 | int err; |
3715 | ||
3716 | sor = devm_kzalloc(&pdev->dev, sizeof(*sor), GFP_KERNEL); | |
3717 | if (!sor) | |
3718 | return -ENOMEM; | |
3719 | ||
5faea3d0 | 3720 | sor->soc = of_device_get_match_data(&pdev->dev); |
6b6b6042 | 3721 | sor->output.dev = sor->dev = &pdev->dev; |
459cc2c6 TR |
3722 | |
3723 | sor->settings = devm_kmemdup(&pdev->dev, sor->soc->settings, | |
3724 | sor->soc->num_settings * | |
3725 | sizeof(*sor->settings), | |
3726 | GFP_KERNEL); | |
3727 | if (!sor->settings) | |
3728 | return -ENOMEM; | |
3729 | ||
3730 | sor->num_settings = sor->soc->num_settings; | |
6b6b6042 TR |
3731 | |
3732 | np = of_parse_phandle(pdev->dev.of_node, "nvidia,dpaux", 0); | |
3733 | if (np) { | |
9542c237 | 3734 | sor->aux = drm_dp_aux_find_by_of_node(np); |
6b6b6042 TR |
3735 | of_node_put(np); |
3736 | ||
9542c237 | 3737 | if (!sor->aux) |
6b6b6042 | 3738 | return -EPROBE_DEFER; |
6f684de5 | 3739 | |
b79b6081 TR |
3740 | if (get_device(sor->aux->dev)) |
3741 | sor->output.ddc = &sor->aux->ddc; | |
6b6b6042 TR |
3742 | } |
3743 | ||
9542c237 | 3744 | if (!sor->aux) { |
459cc2c6 TR |
3745 | if (sor->soc->supports_hdmi) { |
3746 | sor->ops = &tegra_sor_hdmi_ops; | |
c57997bc | 3747 | sor->pad = TEGRA_IO_PAD_HDMI; |
459cc2c6 TR |
3748 | } else if (sor->soc->supports_lvds) { |
3749 | dev_err(&pdev->dev, "LVDS not supported yet\n"); | |
3750 | return -ENODEV; | |
3751 | } else { | |
3752 | dev_err(&pdev->dev, "unknown (non-DP) support\n"); | |
3753 | return -ENODEV; | |
3754 | } | |
3755 | } else { | |
d278e4a9 TR |
3756 | np = of_parse_phandle(pdev->dev.of_node, "nvidia,panel", 0); |
3757 | /* | |
3758 | * No need to keep this around since we only use it as a check | |
3759 | * to see if a panel is connected (eDP) or not (DP). | |
3760 | */ | |
3761 | of_node_put(np); | |
3762 | ||
3763 | sor->ops = &tegra_sor_dp_ops; | |
3764 | sor->pad = TEGRA_IO_PAD_LVDS; | |
459cc2c6 TR |
3765 | } |
3766 | ||
c57997bc TR |
3767 | err = tegra_sor_parse_dt(sor); |
3768 | if (err < 0) | |
b79b6081 | 3769 | goto put_aux; |
c57997bc | 3770 | |
6b6b6042 | 3771 | err = tegra_output_probe(&sor->output); |
b79b6081 TR |
3772 | if (err < 0) { |
3773 | dev_err_probe(&pdev->dev, err, "failed to probe output\n"); | |
3774 | goto put_aux; | |
3775 | } | |
6b6b6042 | 3776 | |
459cc2c6 TR |
3777 | if (sor->ops && sor->ops->probe) { |
3778 | err = sor->ops->probe(sor); | |
3779 | if (err < 0) { | |
3780 | dev_err(&pdev->dev, "failed to probe %s: %d\n", | |
3781 | sor->ops->name, err); | |
5c1d644c | 3782 | goto remove; |
459cc2c6 TR |
3783 | } |
3784 | } | |
3785 | ||
2f6b3f0b | 3786 | sor->regs = devm_platform_ioremap_resource(pdev, 0); |
459cc2c6 TR |
3787 | if (IS_ERR(sor->regs)) { |
3788 | err = PTR_ERR(sor->regs); | |
3789 | goto remove; | |
3790 | } | |
6b6b6042 | 3791 | |
8e2988a7 | 3792 | err = platform_get_irq(pdev, 0); |
3105e42c | 3793 | if (err < 0) |
8e2988a7 | 3794 | goto remove; |
8e2988a7 TR |
3795 | |
3796 | sor->irq = err; | |
3797 | ||
3798 | err = devm_request_irq(sor->dev, sor->irq, tegra_sor_irq, 0, | |
3799 | dev_name(sor->dev), sor); | |
3800 | if (err < 0) { | |
3801 | dev_err(&pdev->dev, "failed to request IRQ: %d\n", err); | |
3802 | goto remove; | |
3803 | } | |
3804 | ||
11c632e1 | 3805 | sor->rst = devm_reset_control_get_exclusive_released(&pdev->dev, "sor"); |
180b46ec TR |
3806 | if (IS_ERR(sor->rst)) { |
3807 | err = PTR_ERR(sor->rst); | |
3808 | ||
3809 | if (err != -EBUSY || WARN_ON(!pdev->dev.pm_domain)) { | |
f8c79120 JH |
3810 | dev_err(&pdev->dev, "failed to get reset control: %d\n", |
3811 | err); | |
3812 | goto remove; | |
3813 | } | |
180b46ec TR |
3814 | |
3815 | /* | |
3816 | * At this point, the reset control is most likely being used | |
3817 | * by the generic power domain implementation. With any luck | |
3818 | * the power domain will have taken care of resetting the SOR | |
3819 | * and we don't have to do anything. | |
3820 | */ | |
3821 | sor->rst = NULL; | |
4dbdc740 | 3822 | } |
6b6b6042 TR |
3823 | |
3824 | sor->clk = devm_clk_get(&pdev->dev, NULL); | |
4dbdc740 | 3825 | if (IS_ERR(sor->clk)) { |
459cc2c6 TR |
3826 | err = PTR_ERR(sor->clk); |
3827 | dev_err(&pdev->dev, "failed to get module clock: %d\n", err); | |
3828 | goto remove; | |
4dbdc740 | 3829 | } |
6b6b6042 | 3830 | |
618dee39 | 3831 | if (sor->soc->supports_hdmi || sor->soc->supports_dp) { |
e1335e2f TR |
3832 | struct device_node *np = pdev->dev.of_node; |
3833 | const char *name; | |
3834 | ||
3835 | /* | |
3836 | * For backwards compatibility with Tegra210 device trees, | |
3837 | * fall back to the old clock name "source" if the new "out" | |
3838 | * clock is not available. | |
3839 | */ | |
3840 | if (of_property_match_string(np, "clock-names", "out") < 0) | |
3841 | name = "source"; | |
3842 | else | |
3843 | name = "out"; | |
3844 | ||
3845 | sor->clk_out = devm_clk_get(&pdev->dev, name); | |
3846 | if (IS_ERR(sor->clk_out)) { | |
3847 | err = PTR_ERR(sor->clk_out); | |
3848 | dev_err(sor->dev, "failed to get %s clock: %d\n", | |
3849 | name, err); | |
618dee39 TR |
3850 | goto remove; |
3851 | } | |
1087fac1 | 3852 | } else { |
d780537f | 3853 | /* fall back to the module clock on SOR0 (eDP/LVDS only) */ |
1087fac1 | 3854 | sor->clk_out = sor->clk; |
618dee39 TR |
3855 | } |
3856 | ||
6b6b6042 | 3857 | sor->clk_parent = devm_clk_get(&pdev->dev, "parent"); |
4dbdc740 | 3858 | if (IS_ERR(sor->clk_parent)) { |
459cc2c6 TR |
3859 | err = PTR_ERR(sor->clk_parent); |
3860 | dev_err(&pdev->dev, "failed to get parent clock: %d\n", err); | |
3861 | goto remove; | |
4dbdc740 | 3862 | } |
6b6b6042 | 3863 | |
6b6b6042 | 3864 | sor->clk_safe = devm_clk_get(&pdev->dev, "safe"); |
4dbdc740 | 3865 | if (IS_ERR(sor->clk_safe)) { |
459cc2c6 TR |
3866 | err = PTR_ERR(sor->clk_safe); |
3867 | dev_err(&pdev->dev, "failed to get safe clock: %d\n", err); | |
3868 | goto remove; | |
4dbdc740 | 3869 | } |
6b6b6042 | 3870 | |
6b6b6042 | 3871 | sor->clk_dp = devm_clk_get(&pdev->dev, "dp"); |
4dbdc740 | 3872 | if (IS_ERR(sor->clk_dp)) { |
459cc2c6 TR |
3873 | err = PTR_ERR(sor->clk_dp); |
3874 | dev_err(&pdev->dev, "failed to get DP clock: %d\n", err); | |
3875 | goto remove; | |
4dbdc740 | 3876 | } |
6b6b6042 | 3877 | |
e1335e2f TR |
3878 | /* |
3879 | * Starting with Tegra186, the BPMP provides an implementation for | |
3880 | * the pad output clock, so we have to look it up from device tree. | |
3881 | */ | |
3882 | sor->clk_pad = devm_clk_get(&pdev->dev, "pad"); | |
3883 | if (IS_ERR(sor->clk_pad)) { | |
3884 | if (sor->clk_pad != ERR_PTR(-ENOENT)) { | |
3885 | err = PTR_ERR(sor->clk_pad); | |
3886 | goto remove; | |
3887 | } | |
3888 | ||
3889 | /* | |
3890 | * If the pad output clock is not available, then we assume | |
3891 | * we're on Tegra210 or earlier and have to provide our own | |
3892 | * implementation. | |
3893 | */ | |
3894 | sor->clk_pad = NULL; | |
3895 | } | |
3896 | ||
3897 | /* | |
3898 | * The bootloader may have set up the SOR such that it's module clock | |
3899 | * is sourced by one of the display PLLs. However, that doesn't work | |
3900 | * without properly having set up other bits of the SOR. | |
3901 | */ | |
3902 | err = clk_set_parent(sor->clk_out, sor->clk_safe); | |
3903 | if (err < 0) { | |
3904 | dev_err(&pdev->dev, "failed to use safe clock: %d\n", err); | |
3905 | goto remove; | |
3906 | } | |
3907 | ||
aaff8bd2 TR |
3908 | platform_set_drvdata(pdev, sor); |
3909 | pm_runtime_enable(&pdev->dev); | |
3910 | ||
5dea4275 | 3911 | host1x_client_init(&sor->client); |
c472a0b0 TR |
3912 | sor->client.ops = &sor_client_ops; |
3913 | sor->client.dev = &pdev->dev; | |
3914 | ||
e1335e2f TR |
3915 | /* |
3916 | * On Tegra210 and earlier, provide our own implementation for the | |
3917 | * pad output clock. | |
3918 | */ | |
3919 | if (!sor->clk_pad) { | |
4bdf4710 TR |
3920 | char *name; |
3921 | ||
a5127a2d TR |
3922 | name = devm_kasprintf(sor->dev, GFP_KERNEL, "sor%u_pad_clkout", |
3923 | sor->index); | |
3924 | if (!name) { | |
3925 | err = -ENOMEM; | |
5dea4275 | 3926 | goto uninit; |
e1335e2f TR |
3927 | } |
3928 | ||
fd67e9c6 | 3929 | err = host1x_client_resume(&sor->client); |
e1335e2f | 3930 | if (err < 0) { |
fd67e9c6 | 3931 | dev_err(sor->dev, "failed to resume: %d\n", err); |
5dea4275 | 3932 | goto uninit; |
4bdf4710 TR |
3933 | } |
3934 | ||
3935 | sor->clk_pad = tegra_clk_sor_pad_register(sor, name); | |
fd67e9c6 | 3936 | host1x_client_suspend(&sor->client); |
e1335e2f | 3937 | } |
b299221c | 3938 | |
e1335e2f TR |
3939 | if (IS_ERR(sor->clk_pad)) { |
3940 | err = PTR_ERR(sor->clk_pad); | |
c472a0b0 | 3941 | dev_err(sor->dev, "failed to register SOR pad clock: %d\n", |
6b6b6042 | 3942 | err); |
5dea4275 TR |
3943 | goto uninit; |
3944 | } | |
3945 | ||
3946 | err = __host1x_client_register(&sor->client); | |
3947 | if (err < 0) { | |
3948 | dev_err(&pdev->dev, "failed to register host1x client: %d\n", | |
3949 | err); | |
3950 | goto uninit; | |
6b6b6042 TR |
3951 | } |
3952 | ||
6b6b6042 | 3953 | return 0; |
459cc2c6 | 3954 | |
5dea4275 TR |
3955 | uninit: |
3956 | host1x_client_exit(&sor->client); | |
ad2139cb | 3957 | pm_runtime_disable(&pdev->dev); |
459cc2c6 | 3958 | remove: |
b79b6081 TR |
3959 | if (sor->aux) |
3960 | sor->output.ddc = NULL; | |
3961 | ||
459cc2c6 | 3962 | tegra_output_remove(&sor->output); |
b79b6081 TR |
3963 | put_aux: |
3964 | if (sor->aux) | |
3965 | put_device(sor->aux->dev); | |
3966 | ||
459cc2c6 | 3967 | return err; |
6b6b6042 TR |
3968 | } |
3969 | ||
3b6f8900 | 3970 | static void tegra_sor_remove(struct platform_device *pdev) |
6b6b6042 TR |
3971 | { |
3972 | struct tegra_sor *sor = platform_get_drvdata(pdev); | |
6b6b6042 | 3973 | |
1d83d1a2 | 3974 | host1x_client_unregister(&sor->client); |
6b6b6042 | 3975 | |
ad2139cb TR |
3976 | pm_runtime_disable(&pdev->dev); |
3977 | ||
b79b6081 TR |
3978 | if (sor->aux) { |
3979 | put_device(sor->aux->dev); | |
3980 | sor->output.ddc = NULL; | |
3981 | } | |
3982 | ||
328ec69e | 3983 | tegra_output_remove(&sor->output); |
6b6b6042 TR |
3984 | } |
3985 | ||
f90965ab | 3986 | static int __maybe_unused tegra_sor_suspend(struct device *dev) |
aaff8bd2 TR |
3987 | { |
3988 | struct tegra_sor *sor = dev_get_drvdata(dev); | |
3989 | int err; | |
3990 | ||
271502ef | 3991 | err = tegra_output_suspend(&sor->output); |
aaff8bd2 | 3992 | if (err < 0) { |
271502ef | 3993 | dev_err(dev, "failed to suspend output: %d\n", err); |
aaff8bd2 TR |
3994 | return err; |
3995 | } | |
3996 | ||
b06e145f TR |
3997 | if (sor->hdmi_supply) { |
3998 | err = regulator_disable(sor->hdmi_supply); | |
f8c79120 | 3999 | if (err < 0) { |
271502ef | 4000 | tegra_output_resume(&sor->output); |
f8c79120 JH |
4001 | return err; |
4002 | } | |
aaff8bd2 TR |
4003 | } |
4004 | ||
4005 | return 0; | |
4006 | } | |
be0b23f2 | 4007 | |
f90965ab | 4008 | static int __maybe_unused tegra_sor_resume(struct device *dev) |
be0b23f2 TR |
4009 | { |
4010 | struct tegra_sor *sor = dev_get_drvdata(dev); | |
b06e145f TR |
4011 | int err; |
4012 | ||
4013 | if (sor->hdmi_supply) { | |
b06e145f | 4014 | err = regulator_enable(sor->hdmi_supply); |
b06e145f TR |
4015 | if (err < 0) |
4016 | return err; | |
4017 | } | |
be0b23f2 | 4018 | |
271502ef TR |
4019 | err = tegra_output_resume(&sor->output); |
4020 | if (err < 0) { | |
4021 | dev_err(dev, "failed to resume output: %d\n", err); | |
be0b23f2 | 4022 | |
271502ef TR |
4023 | if (sor->hdmi_supply) |
4024 | regulator_disable(sor->hdmi_supply); | |
b06e145f | 4025 | |
271502ef | 4026 | return err; |
b06e145f | 4027 | } |
be0b23f2 | 4028 | |
b06e145f | 4029 | return 0; |
be0b23f2 | 4030 | } |
aaff8bd2 TR |
4031 | |
4032 | static const struct dev_pm_ops tegra_sor_pm_ops = { | |
be0b23f2 | 4033 | SET_SYSTEM_SLEEP_PM_OPS(tegra_sor_suspend, tegra_sor_resume) |
aaff8bd2 TR |
4034 | }; |
4035 | ||
6b6b6042 TR |
4036 | struct platform_driver tegra_sor_driver = { |
4037 | .driver = { | |
4038 | .name = "tegra-sor", | |
4039 | .of_match_table = tegra_sor_of_match, | |
aaff8bd2 | 4040 | .pm = &tegra_sor_pm_ops, |
6b6b6042 TR |
4041 | }, |
4042 | .probe = tegra_sor_probe, | |
3b6f8900 | 4043 | .remove_new = tegra_sor_remove, |
6b6b6042 | 4044 | }; |