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45244b87 ED |
1 | /* |
2 | * Copyright © 2012 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
21 | * IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eugeni Dodonov <eugeni.dodonov@intel.com> | |
25 | * | |
26 | */ | |
27 | ||
28 | #include "i915_drv.h" | |
29 | #include "intel_drv.h" | |
30 | ||
31 | /* HDMI/DVI modes ignore everything but the last 2 items. So we share | |
32 | * them for both DP and FDI transports, allowing those ports to | |
33 | * automatically adapt to HDMI connections as well | |
34 | */ | |
35 | static const u32 hsw_ddi_translations_dp[] = { | |
36 | 0x00FFFFFF, 0x0006000E, /* DP parameters */ | |
37 | 0x00D75FFF, 0x0005000A, | |
38 | 0x00C30FFF, 0x00040006, | |
39 | 0x80AAAFFF, 0x000B0000, | |
40 | 0x00FFFFFF, 0x0005000A, | |
41 | 0x00D75FFF, 0x000C0004, | |
42 | 0x80C30FFF, 0x000B0000, | |
43 | 0x00FFFFFF, 0x00040006, | |
44 | 0x80D75FFF, 0x000B0000, | |
45 | 0x00FFFFFF, 0x00040006 /* HDMI parameters */ | |
46 | }; | |
47 | ||
48 | static const u32 hsw_ddi_translations_fdi[] = { | |
49 | 0x00FFFFFF, 0x0007000E, /* FDI parameters */ | |
50 | 0x00D75FFF, 0x000F000A, | |
51 | 0x00C30FFF, 0x00060006, | |
52 | 0x00AAAFFF, 0x001E0000, | |
53 | 0x00FFFFFF, 0x000F000A, | |
54 | 0x00D75FFF, 0x00160004, | |
55 | 0x00C30FFF, 0x001E0000, | |
56 | 0x00FFFFFF, 0x00060006, | |
57 | 0x00D75FFF, 0x001E0000, | |
58 | 0x00FFFFFF, 0x00040006 /* HDMI parameters */ | |
59 | }; | |
60 | ||
fc914639 PZ |
61 | static enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) |
62 | { | |
0bdee30e | 63 | struct drm_encoder *encoder = &intel_encoder->base; |
fc914639 PZ |
64 | int type = intel_encoder->type; |
65 | ||
174edf1f | 66 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP || |
00c09d70 | 67 | type == INTEL_OUTPUT_HDMI || type == INTEL_OUTPUT_UNKNOWN) { |
174edf1f PZ |
68 | struct intel_digital_port *intel_dig_port = |
69 | enc_to_dig_port(encoder); | |
70 | return intel_dig_port->port; | |
0bdee30e | 71 | |
fc914639 PZ |
72 | } else if (type == INTEL_OUTPUT_ANALOG) { |
73 | return PORT_E; | |
0bdee30e | 74 | |
fc914639 PZ |
75 | } else { |
76 | DRM_ERROR("Invalid DDI encoder type %d\n", type); | |
77 | BUG(); | |
78 | } | |
79 | } | |
80 | ||
45244b87 ED |
81 | /* On Haswell, DDI port buffers must be programmed with correct values |
82 | * in advance. The buffer values are different for FDI and DP modes, | |
83 | * but the HDMI/DVI fields are shared among those. So we program the DDI | |
84 | * in either FDI or DP modes only, as HDMI connections will work with both | |
85 | * of those | |
86 | */ | |
c1f63f9d PZ |
87 | static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port, |
88 | bool use_fdi_mode) | |
45244b87 ED |
89 | { |
90 | struct drm_i915_private *dev_priv = dev->dev_private; | |
91 | u32 reg; | |
92 | int i; | |
93 | const u32 *ddi_translations = ((use_fdi_mode) ? | |
94 | hsw_ddi_translations_fdi : | |
95 | hsw_ddi_translations_dp); | |
96 | ||
97 | DRM_DEBUG_DRIVER("Initializing DDI buffers for port %c in %s mode\n", | |
98 | port_name(port), | |
99 | use_fdi_mode ? "FDI" : "DP"); | |
100 | ||
101 | WARN((use_fdi_mode && (port != PORT_E)), | |
102 | "Programming port %c in FDI mode, this probably will not work.\n", | |
103 | port_name(port)); | |
104 | ||
105 | for (i=0, reg=DDI_BUF_TRANS(port); i < ARRAY_SIZE(hsw_ddi_translations_fdi); i++) { | |
106 | I915_WRITE(reg, ddi_translations[i]); | |
107 | reg += 4; | |
108 | } | |
109 | } | |
110 | ||
111 | /* Program DDI buffers translations for DP. By default, program ports A-D in DP | |
112 | * mode and port E for FDI. | |
113 | */ | |
114 | void intel_prepare_ddi(struct drm_device *dev) | |
115 | { | |
116 | int port; | |
117 | ||
0d536cb4 PZ |
118 | if (!HAS_DDI(dev)) |
119 | return; | |
45244b87 | 120 | |
0d536cb4 PZ |
121 | for (port = PORT_A; port < PORT_E; port++) |
122 | intel_prepare_ddi_buffers(dev, port, false); | |
123 | ||
124 | /* DDI E is the suggested one to work in FDI mode, so program is as such | |
125 | * by default. It will have to be re-programmed in case a digital DP | |
126 | * output will be detected on it | |
127 | */ | |
128 | intel_prepare_ddi_buffers(dev, PORT_E, true); | |
45244b87 | 129 | } |
c82e4d26 ED |
130 | |
131 | static const long hsw_ddi_buf_ctl_values[] = { | |
132 | DDI_BUF_EMP_400MV_0DB_HSW, | |
133 | DDI_BUF_EMP_400MV_3_5DB_HSW, | |
134 | DDI_BUF_EMP_400MV_6DB_HSW, | |
135 | DDI_BUF_EMP_400MV_9_5DB_HSW, | |
136 | DDI_BUF_EMP_600MV_0DB_HSW, | |
137 | DDI_BUF_EMP_600MV_3_5DB_HSW, | |
138 | DDI_BUF_EMP_600MV_6DB_HSW, | |
139 | DDI_BUF_EMP_800MV_0DB_HSW, | |
140 | DDI_BUF_EMP_800MV_3_5DB_HSW | |
141 | }; | |
142 | ||
248138b5 PZ |
143 | static void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv, |
144 | enum port port) | |
145 | { | |
146 | uint32_t reg = DDI_BUF_CTL(port); | |
147 | int i; | |
148 | ||
149 | for (i = 0; i < 8; i++) { | |
150 | udelay(1); | |
151 | if (I915_READ(reg) & DDI_BUF_IS_IDLE) | |
152 | return; | |
153 | } | |
154 | DRM_ERROR("Timeout waiting for DDI BUF %c idle bit\n", port_name(port)); | |
155 | } | |
c82e4d26 ED |
156 | |
157 | /* Starting with Haswell, different DDI ports can work in FDI mode for | |
158 | * connection to the PCH-located connectors. For this, it is necessary to train | |
159 | * both the DDI port and PCH receiver for the desired DDI buffer settings. | |
160 | * | |
161 | * The recommended port to work in FDI mode is DDI E, which we use here. Also, | |
162 | * please note that when FDI mode is active on DDI E, it shares 2 lines with | |
163 | * DDI A (which is used for eDP) | |
164 | */ | |
165 | ||
166 | void hsw_fdi_link_train(struct drm_crtc *crtc) | |
167 | { | |
168 | struct drm_device *dev = crtc->dev; | |
169 | struct drm_i915_private *dev_priv = dev->dev_private; | |
170 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
04945641 | 171 | u32 temp, i, rx_ctl_val; |
c82e4d26 | 172 | |
04945641 PZ |
173 | /* Set the FDI_RX_MISC pwrdn lanes and the 2 workarounds listed at the |
174 | * mode set "sequence for CRT port" document: | |
175 | * - TP1 to TP2 time with the default value | |
176 | * - FDI delay to 90h | |
177 | */ | |
178 | I915_WRITE(_FDI_RXA_MISC, FDI_RX_PWRDN_LANE1_VAL(2) | | |
179 | FDI_RX_PWRDN_LANE0_VAL(2) | | |
180 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
181 | ||
182 | /* Enable the PCH Receiver FDI PLL */ | |
183 | rx_ctl_val = FDI_RX_PLL_ENABLE | FDI_RX_ENHANCE_FRAME_ENABLE | | |
184 | ((intel_crtc->fdi_lanes - 1) << 19); | |
68d18ad7 PZ |
185 | if (dev_priv->fdi_rx_polarity_reversed) |
186 | rx_ctl_val |= FDI_RX_POLARITY_REVERSED_LPT; | |
04945641 PZ |
187 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
188 | POSTING_READ(_FDI_RXA_CTL); | |
189 | udelay(220); | |
190 | ||
191 | /* Switch from Rawclk to PCDclk */ | |
192 | rx_ctl_val |= FDI_PCDCLK; | |
193 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); | |
194 | ||
195 | /* Configure Port Clock Select */ | |
196 | I915_WRITE(PORT_CLK_SEL(PORT_E), intel_crtc->ddi_pll_sel); | |
197 | ||
198 | /* Start the training iterating through available voltages and emphasis, | |
199 | * testing each value twice. */ | |
200 | for (i = 0; i < ARRAY_SIZE(hsw_ddi_buf_ctl_values) * 2; i++) { | |
c82e4d26 ED |
201 | /* Configure DP_TP_CTL with auto-training */ |
202 | I915_WRITE(DP_TP_CTL(PORT_E), | |
203 | DP_TP_CTL_FDI_AUTOTRAIN | | |
204 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | | |
205 | DP_TP_CTL_LINK_TRAIN_PAT1 | | |
206 | DP_TP_CTL_ENABLE); | |
207 | ||
208 | /* Configure and enable DDI_BUF_CTL for DDI E with next voltage */ | |
c82e4d26 | 209 | I915_WRITE(DDI_BUF_CTL(PORT_E), |
04945641 PZ |
210 | DDI_BUF_CTL_ENABLE | |
211 | ((intel_crtc->fdi_lanes - 1) << 1) | | |
212 | hsw_ddi_buf_ctl_values[i / 2]); | |
213 | POSTING_READ(DDI_BUF_CTL(PORT_E)); | |
c82e4d26 ED |
214 | |
215 | udelay(600); | |
216 | ||
04945641 PZ |
217 | /* Program PCH FDI Receiver TU */ |
218 | I915_WRITE(_FDI_RXA_TUSIZE1, TU_SIZE(64)); | |
219 | ||
220 | /* Enable PCH FDI Receiver with auto-training */ | |
221 | rx_ctl_val |= FDI_RX_ENABLE | FDI_LINK_TRAIN_AUTO; | |
222 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); | |
223 | POSTING_READ(_FDI_RXA_CTL); | |
224 | ||
225 | /* Wait for FDI receiver lane calibration */ | |
226 | udelay(30); | |
227 | ||
228 | /* Unset FDI_RX_MISC pwrdn lanes */ | |
229 | temp = I915_READ(_FDI_RXA_MISC); | |
230 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); | |
231 | I915_WRITE(_FDI_RXA_MISC, temp); | |
232 | POSTING_READ(_FDI_RXA_MISC); | |
233 | ||
234 | /* Wait for FDI auto training time */ | |
235 | udelay(5); | |
c82e4d26 ED |
236 | |
237 | temp = I915_READ(DP_TP_STATUS(PORT_E)); | |
238 | if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) { | |
04945641 | 239 | DRM_DEBUG_KMS("FDI link training done on step %d\n", i); |
c82e4d26 ED |
240 | |
241 | /* Enable normal pixel sending for FDI */ | |
242 | I915_WRITE(DP_TP_CTL(PORT_E), | |
04945641 PZ |
243 | DP_TP_CTL_FDI_AUTOTRAIN | |
244 | DP_TP_CTL_LINK_TRAIN_NORMAL | | |
245 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | | |
246 | DP_TP_CTL_ENABLE); | |
c82e4d26 | 247 | |
04945641 | 248 | return; |
c82e4d26 | 249 | } |
04945641 | 250 | |
248138b5 PZ |
251 | temp = I915_READ(DDI_BUF_CTL(PORT_E)); |
252 | temp &= ~DDI_BUF_CTL_ENABLE; | |
253 | I915_WRITE(DDI_BUF_CTL(PORT_E), temp); | |
254 | POSTING_READ(DDI_BUF_CTL(PORT_E)); | |
255 | ||
04945641 | 256 | /* Disable DP_TP_CTL and FDI_RX_CTL and retry */ |
248138b5 PZ |
257 | temp = I915_READ(DP_TP_CTL(PORT_E)); |
258 | temp &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
259 | temp |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
260 | I915_WRITE(DP_TP_CTL(PORT_E), temp); | |
261 | POSTING_READ(DP_TP_CTL(PORT_E)); | |
262 | ||
263 | intel_wait_ddi_buf_idle(dev_priv, PORT_E); | |
04945641 PZ |
264 | |
265 | rx_ctl_val &= ~FDI_RX_ENABLE; | |
266 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); | |
248138b5 | 267 | POSTING_READ(_FDI_RXA_CTL); |
04945641 PZ |
268 | |
269 | /* Reset FDI_RX_MISC pwrdn lanes */ | |
270 | temp = I915_READ(_FDI_RXA_MISC); | |
271 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); | |
272 | temp |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); | |
273 | I915_WRITE(_FDI_RXA_MISC, temp); | |
248138b5 | 274 | POSTING_READ(_FDI_RXA_MISC); |
c82e4d26 ED |
275 | } |
276 | ||
04945641 | 277 | DRM_ERROR("FDI link training failed!\n"); |
c82e4d26 | 278 | } |
0e72a5b5 | 279 | |
12a13a33 ED |
280 | /* WRPLL clock dividers */ |
281 | struct wrpll_tmds_clock { | |
282 | u32 clock; | |
283 | u16 p; /* Post divider */ | |
284 | u16 n2; /* Feedback divider */ | |
285 | u16 r2; /* Reference divider */ | |
286 | }; | |
287 | ||
126e9be8 PZ |
288 | /* Table of matching values for WRPLL clocks programming for each frequency. |
289 | * The code assumes this table is sorted. */ | |
12a13a33 ED |
290 | static const struct wrpll_tmds_clock wrpll_tmds_clock_table[] = { |
291 | {19750, 38, 25, 18}, | |
292 | {20000, 48, 32, 18}, | |
293 | {21000, 36, 21, 15}, | |
294 | {21912, 42, 29, 17}, | |
295 | {22000, 36, 22, 15}, | |
296 | {23000, 36, 23, 15}, | |
297 | {23500, 40, 40, 23}, | |
298 | {23750, 26, 16, 14}, | |
12a13a33 ED |
299 | {24000, 36, 24, 15}, |
300 | {25000, 36, 25, 15}, | |
301 | {25175, 26, 40, 33}, | |
302 | {25200, 30, 21, 15}, | |
303 | {26000, 36, 26, 15}, | |
304 | {27000, 30, 21, 14}, | |
305 | {27027, 18, 100, 111}, | |
306 | {27500, 30, 29, 19}, | |
307 | {28000, 34, 30, 17}, | |
308 | {28320, 26, 30, 22}, | |
309 | {28322, 32, 42, 25}, | |
310 | {28750, 24, 23, 18}, | |
311 | {29000, 30, 29, 18}, | |
312 | {29750, 32, 30, 17}, | |
313 | {30000, 30, 25, 15}, | |
314 | {30750, 30, 41, 24}, | |
315 | {31000, 30, 31, 18}, | |
316 | {31500, 30, 28, 16}, | |
317 | {32000, 30, 32, 18}, | |
318 | {32500, 28, 32, 19}, | |
319 | {33000, 24, 22, 15}, | |
320 | {34000, 28, 30, 17}, | |
321 | {35000, 26, 32, 19}, | |
322 | {35500, 24, 30, 19}, | |
323 | {36000, 26, 26, 15}, | |
324 | {36750, 26, 46, 26}, | |
325 | {37000, 24, 23, 14}, | |
326 | {37762, 22, 40, 26}, | |
327 | {37800, 20, 21, 15}, | |
328 | {38000, 24, 27, 16}, | |
329 | {38250, 24, 34, 20}, | |
330 | {39000, 24, 26, 15}, | |
331 | {40000, 24, 32, 18}, | |
332 | {40500, 20, 21, 14}, | |
333 | {40541, 22, 147, 89}, | |
334 | {40750, 18, 19, 14}, | |
335 | {41000, 16, 17, 14}, | |
336 | {41500, 22, 44, 26}, | |
337 | {41540, 22, 44, 26}, | |
338 | {42000, 18, 21, 15}, | |
339 | {42500, 22, 45, 26}, | |
340 | {43000, 20, 43, 27}, | |
341 | {43163, 20, 24, 15}, | |
342 | {44000, 18, 22, 15}, | |
343 | {44900, 20, 108, 65}, | |
344 | {45000, 20, 25, 15}, | |
345 | {45250, 20, 52, 31}, | |
346 | {46000, 18, 23, 15}, | |
347 | {46750, 20, 45, 26}, | |
348 | {47000, 20, 40, 23}, | |
349 | {48000, 18, 24, 15}, | |
350 | {49000, 18, 49, 30}, | |
351 | {49500, 16, 22, 15}, | |
352 | {50000, 18, 25, 15}, | |
353 | {50500, 18, 32, 19}, | |
354 | {51000, 18, 34, 20}, | |
355 | {52000, 18, 26, 15}, | |
356 | {52406, 14, 34, 25}, | |
357 | {53000, 16, 22, 14}, | |
358 | {54000, 16, 24, 15}, | |
359 | {54054, 16, 173, 108}, | |
360 | {54500, 14, 24, 17}, | |
361 | {55000, 12, 22, 18}, | |
362 | {56000, 14, 45, 31}, | |
363 | {56250, 16, 25, 15}, | |
364 | {56750, 14, 25, 17}, | |
365 | {57000, 16, 27, 16}, | |
366 | {58000, 16, 43, 25}, | |
367 | {58250, 16, 38, 22}, | |
368 | {58750, 16, 40, 23}, | |
369 | {59000, 14, 26, 17}, | |
370 | {59341, 14, 40, 26}, | |
371 | {59400, 16, 44, 25}, | |
372 | {60000, 16, 32, 18}, | |
373 | {60500, 12, 39, 29}, | |
374 | {61000, 14, 49, 31}, | |
375 | {62000, 14, 37, 23}, | |
376 | {62250, 14, 42, 26}, | |
377 | {63000, 12, 21, 15}, | |
378 | {63500, 14, 28, 17}, | |
379 | {64000, 12, 27, 19}, | |
380 | {65000, 14, 32, 19}, | |
381 | {65250, 12, 29, 20}, | |
382 | {65500, 12, 32, 22}, | |
383 | {66000, 12, 22, 15}, | |
384 | {66667, 14, 38, 22}, | |
385 | {66750, 10, 21, 17}, | |
386 | {67000, 14, 33, 19}, | |
387 | {67750, 14, 58, 33}, | |
388 | {68000, 14, 30, 17}, | |
389 | {68179, 14, 46, 26}, | |
390 | {68250, 14, 46, 26}, | |
391 | {69000, 12, 23, 15}, | |
392 | {70000, 12, 28, 18}, | |
393 | {71000, 12, 30, 19}, | |
394 | {72000, 12, 24, 15}, | |
395 | {73000, 10, 23, 17}, | |
396 | {74000, 12, 23, 14}, | |
397 | {74176, 8, 100, 91}, | |
398 | {74250, 10, 22, 16}, | |
399 | {74481, 12, 43, 26}, | |
400 | {74500, 10, 29, 21}, | |
401 | {75000, 12, 25, 15}, | |
402 | {75250, 10, 39, 28}, | |
403 | {76000, 12, 27, 16}, | |
404 | {77000, 12, 53, 31}, | |
405 | {78000, 12, 26, 15}, | |
406 | {78750, 12, 28, 16}, | |
407 | {79000, 10, 38, 26}, | |
408 | {79500, 10, 28, 19}, | |
409 | {80000, 12, 32, 18}, | |
410 | {81000, 10, 21, 14}, | |
411 | {81081, 6, 100, 111}, | |
412 | {81624, 8, 29, 24}, | |
413 | {82000, 8, 17, 14}, | |
414 | {83000, 10, 40, 26}, | |
415 | {83950, 10, 28, 18}, | |
416 | {84000, 10, 28, 18}, | |
417 | {84750, 6, 16, 17}, | |
418 | {85000, 6, 17, 18}, | |
419 | {85250, 10, 30, 19}, | |
420 | {85750, 10, 27, 17}, | |
421 | {86000, 10, 43, 27}, | |
422 | {87000, 10, 29, 18}, | |
423 | {88000, 10, 44, 27}, | |
424 | {88500, 10, 41, 25}, | |
425 | {89000, 10, 28, 17}, | |
426 | {89012, 6, 90, 91}, | |
427 | {89100, 10, 33, 20}, | |
428 | {90000, 10, 25, 15}, | |
429 | {91000, 10, 32, 19}, | |
430 | {92000, 10, 46, 27}, | |
431 | {93000, 10, 31, 18}, | |
432 | {94000, 10, 40, 23}, | |
433 | {94500, 10, 28, 16}, | |
434 | {95000, 10, 44, 25}, | |
435 | {95654, 10, 39, 22}, | |
436 | {95750, 10, 39, 22}, | |
437 | {96000, 10, 32, 18}, | |
438 | {97000, 8, 23, 16}, | |
439 | {97750, 8, 42, 29}, | |
440 | {98000, 8, 45, 31}, | |
441 | {99000, 8, 22, 15}, | |
442 | {99750, 8, 34, 23}, | |
443 | {100000, 6, 20, 18}, | |
444 | {100500, 6, 19, 17}, | |
445 | {101000, 6, 37, 33}, | |
446 | {101250, 8, 21, 14}, | |
447 | {102000, 6, 17, 15}, | |
448 | {102250, 6, 25, 22}, | |
449 | {103000, 8, 29, 19}, | |
450 | {104000, 8, 37, 24}, | |
451 | {105000, 8, 28, 18}, | |
452 | {106000, 8, 22, 14}, | |
453 | {107000, 8, 46, 29}, | |
454 | {107214, 8, 27, 17}, | |
455 | {108000, 8, 24, 15}, | |
456 | {108108, 8, 173, 108}, | |
457 | {109000, 6, 23, 19}, | |
12a13a33 ED |
458 | {110000, 6, 22, 18}, |
459 | {110013, 6, 22, 18}, | |
460 | {110250, 8, 49, 30}, | |
461 | {110500, 8, 36, 22}, | |
462 | {111000, 8, 23, 14}, | |
463 | {111264, 8, 150, 91}, | |
464 | {111375, 8, 33, 20}, | |
465 | {112000, 8, 63, 38}, | |
466 | {112500, 8, 25, 15}, | |
467 | {113100, 8, 57, 34}, | |
468 | {113309, 8, 42, 25}, | |
469 | {114000, 8, 27, 16}, | |
470 | {115000, 6, 23, 18}, | |
471 | {116000, 8, 43, 25}, | |
472 | {117000, 8, 26, 15}, | |
473 | {117500, 8, 40, 23}, | |
474 | {118000, 6, 38, 29}, | |
475 | {119000, 8, 30, 17}, | |
476 | {119500, 8, 46, 26}, | |
477 | {119651, 8, 39, 22}, | |
478 | {120000, 8, 32, 18}, | |
479 | {121000, 6, 39, 29}, | |
480 | {121250, 6, 31, 23}, | |
481 | {121750, 6, 23, 17}, | |
482 | {122000, 6, 42, 31}, | |
483 | {122614, 6, 30, 22}, | |
484 | {123000, 6, 41, 30}, | |
485 | {123379, 6, 37, 27}, | |
486 | {124000, 6, 51, 37}, | |
487 | {125000, 6, 25, 18}, | |
488 | {125250, 4, 13, 14}, | |
489 | {125750, 4, 27, 29}, | |
490 | {126000, 6, 21, 15}, | |
491 | {127000, 6, 24, 17}, | |
492 | {127250, 6, 41, 29}, | |
493 | {128000, 6, 27, 19}, | |
494 | {129000, 6, 43, 30}, | |
495 | {129859, 4, 25, 26}, | |
496 | {130000, 6, 26, 18}, | |
497 | {130250, 6, 42, 29}, | |
498 | {131000, 6, 32, 22}, | |
499 | {131500, 6, 38, 26}, | |
500 | {131850, 6, 41, 28}, | |
501 | {132000, 6, 22, 15}, | |
502 | {132750, 6, 28, 19}, | |
503 | {133000, 6, 34, 23}, | |
504 | {133330, 6, 37, 25}, | |
505 | {134000, 6, 61, 41}, | |
506 | {135000, 6, 21, 14}, | |
507 | {135250, 6, 167, 111}, | |
508 | {136000, 6, 62, 41}, | |
509 | {137000, 6, 35, 23}, | |
510 | {138000, 6, 23, 15}, | |
511 | {138500, 6, 40, 26}, | |
512 | {138750, 6, 37, 24}, | |
513 | {139000, 6, 34, 22}, | |
514 | {139050, 6, 34, 22}, | |
515 | {139054, 6, 34, 22}, | |
516 | {140000, 6, 28, 18}, | |
517 | {141000, 6, 36, 23}, | |
518 | {141500, 6, 22, 14}, | |
519 | {142000, 6, 30, 19}, | |
520 | {143000, 6, 27, 17}, | |
521 | {143472, 4, 17, 16}, | |
522 | {144000, 6, 24, 15}, | |
523 | {145000, 6, 29, 18}, | |
524 | {146000, 6, 47, 29}, | |
525 | {146250, 6, 26, 16}, | |
526 | {147000, 6, 49, 30}, | |
527 | {147891, 6, 23, 14}, | |
528 | {148000, 6, 23, 14}, | |
529 | {148250, 6, 28, 17}, | |
530 | {148352, 4, 100, 91}, | |
531 | {148500, 6, 33, 20}, | |
532 | {149000, 6, 48, 29}, | |
533 | {150000, 6, 25, 15}, | |
534 | {151000, 4, 19, 17}, | |
535 | {152000, 6, 27, 16}, | |
536 | {152280, 6, 44, 26}, | |
537 | {153000, 6, 34, 20}, | |
538 | {154000, 6, 53, 31}, | |
539 | {155000, 6, 31, 18}, | |
540 | {155250, 6, 50, 29}, | |
541 | {155750, 6, 45, 26}, | |
542 | {156000, 6, 26, 15}, | |
543 | {157000, 6, 61, 35}, | |
544 | {157500, 6, 28, 16}, | |
545 | {158000, 6, 65, 37}, | |
546 | {158250, 6, 44, 25}, | |
547 | {159000, 6, 53, 30}, | |
548 | {159500, 6, 39, 22}, | |
549 | {160000, 6, 32, 18}, | |
550 | {161000, 4, 31, 26}, | |
551 | {162000, 4, 18, 15}, | |
552 | {162162, 4, 131, 109}, | |
553 | {162500, 4, 53, 44}, | |
554 | {163000, 4, 29, 24}, | |
555 | {164000, 4, 17, 14}, | |
556 | {165000, 4, 22, 18}, | |
557 | {166000, 4, 32, 26}, | |
558 | {167000, 4, 26, 21}, | |
559 | {168000, 4, 46, 37}, | |
560 | {169000, 4, 104, 83}, | |
561 | {169128, 4, 64, 51}, | |
562 | {169500, 4, 39, 31}, | |
563 | {170000, 4, 34, 27}, | |
564 | {171000, 4, 19, 15}, | |
565 | {172000, 4, 51, 40}, | |
566 | {172750, 4, 32, 25}, | |
567 | {172800, 4, 32, 25}, | |
568 | {173000, 4, 41, 32}, | |
569 | {174000, 4, 49, 38}, | |
570 | {174787, 4, 22, 17}, | |
571 | {175000, 4, 35, 27}, | |
572 | {176000, 4, 30, 23}, | |
573 | {177000, 4, 38, 29}, | |
574 | {178000, 4, 29, 22}, | |
575 | {178500, 4, 37, 28}, | |
576 | {179000, 4, 53, 40}, | |
577 | {179500, 4, 73, 55}, | |
578 | {180000, 4, 20, 15}, | |
579 | {181000, 4, 55, 41}, | |
580 | {182000, 4, 31, 23}, | |
581 | {183000, 4, 42, 31}, | |
582 | {184000, 4, 30, 22}, | |
583 | {184750, 4, 26, 19}, | |
584 | {185000, 4, 37, 27}, | |
585 | {186000, 4, 51, 37}, | |
586 | {187000, 4, 36, 26}, | |
587 | {188000, 4, 32, 23}, | |
588 | {189000, 4, 21, 15}, | |
589 | {190000, 4, 38, 27}, | |
590 | {190960, 4, 41, 29}, | |
591 | {191000, 4, 41, 29}, | |
592 | {192000, 4, 27, 19}, | |
593 | {192250, 4, 37, 26}, | |
594 | {193000, 4, 20, 14}, | |
595 | {193250, 4, 53, 37}, | |
596 | {194000, 4, 23, 16}, | |
597 | {194208, 4, 23, 16}, | |
598 | {195000, 4, 26, 18}, | |
599 | {196000, 4, 45, 31}, | |
600 | {197000, 4, 35, 24}, | |
601 | {197750, 4, 41, 28}, | |
602 | {198000, 4, 22, 15}, | |
603 | {198500, 4, 25, 17}, | |
604 | {199000, 4, 28, 19}, | |
605 | {200000, 4, 37, 25}, | |
606 | {201000, 4, 61, 41}, | |
607 | {202000, 4, 112, 75}, | |
608 | {202500, 4, 21, 14}, | |
609 | {203000, 4, 146, 97}, | |
610 | {204000, 4, 62, 41}, | |
611 | {204750, 4, 44, 29}, | |
612 | {205000, 4, 38, 25}, | |
613 | {206000, 4, 29, 19}, | |
614 | {207000, 4, 23, 15}, | |
615 | {207500, 4, 40, 26}, | |
616 | {208000, 4, 37, 24}, | |
617 | {208900, 4, 48, 31}, | |
618 | {209000, 4, 48, 31}, | |
619 | {209250, 4, 31, 20}, | |
620 | {210000, 4, 28, 18}, | |
621 | {211000, 4, 25, 16}, | |
622 | {212000, 4, 22, 14}, | |
623 | {213000, 4, 30, 19}, | |
624 | {213750, 4, 38, 24}, | |
625 | {214000, 4, 46, 29}, | |
626 | {214750, 4, 35, 22}, | |
627 | {215000, 4, 43, 27}, | |
628 | {216000, 4, 24, 15}, | |
629 | {217000, 4, 37, 23}, | |
630 | {218000, 4, 42, 26}, | |
631 | {218250, 4, 42, 26}, | |
632 | {218750, 4, 34, 21}, | |
633 | {219000, 4, 47, 29}, | |
12a13a33 ED |
634 | {220000, 4, 44, 27}, |
635 | {220640, 4, 49, 30}, | |
636 | {220750, 4, 36, 22}, | |
637 | {221000, 4, 36, 22}, | |
638 | {222000, 4, 23, 14}, | |
639 | {222525, 4, 28, 17}, | |
640 | {222750, 4, 33, 20}, | |
641 | {227000, 4, 37, 22}, | |
642 | {230250, 4, 29, 17}, | |
643 | {233500, 4, 38, 22}, | |
644 | {235000, 4, 40, 23}, | |
645 | {238000, 4, 30, 17}, | |
646 | {241500, 2, 17, 19}, | |
647 | {245250, 2, 20, 22}, | |
648 | {247750, 2, 22, 24}, | |
649 | {253250, 2, 15, 16}, | |
650 | {256250, 2, 18, 19}, | |
651 | {262500, 2, 31, 32}, | |
652 | {267250, 2, 66, 67}, | |
653 | {268500, 2, 94, 95}, | |
654 | {270000, 2, 14, 14}, | |
655 | {272500, 2, 77, 76}, | |
656 | {273750, 2, 57, 56}, | |
657 | {280750, 2, 24, 23}, | |
658 | {281250, 2, 23, 22}, | |
659 | {286000, 2, 17, 16}, | |
660 | {291750, 2, 26, 24}, | |
661 | {296703, 2, 56, 51}, | |
662 | {297000, 2, 22, 20}, | |
663 | {298000, 2, 21, 19}, | |
664 | }; | |
72662e10 | 665 | |
00c09d70 PZ |
666 | static void intel_ddi_mode_set(struct drm_encoder *encoder, |
667 | struct drm_display_mode *mode, | |
668 | struct drm_display_mode *adjusted_mode) | |
72662e10 | 669 | { |
72662e10 ED |
670 | struct drm_crtc *crtc = encoder->crtc; |
671 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
247d89f6 PZ |
672 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); |
673 | int port = intel_ddi_get_encoder_port(intel_encoder); | |
72662e10 | 674 | int pipe = intel_crtc->pipe; |
247d89f6 | 675 | int type = intel_encoder->type; |
72662e10 | 676 | |
247d89f6 PZ |
677 | DRM_DEBUG_KMS("Preparing DDI mode for Haswell on port %c, pipe %c\n", |
678 | port_name(port), pipe_name(pipe)); | |
72662e10 | 679 | |
7b9f35a6 | 680 | intel_crtc->eld_vld = false; |
247d89f6 PZ |
681 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
682 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
4f07854d | 683 | |
247d89f6 PZ |
684 | intel_dp->DP = DDI_BUF_CTL_ENABLE | DDI_BUF_EMP_400MV_0DB_HSW; |
685 | switch (intel_dp->lane_count) { | |
686 | case 1: | |
687 | intel_dp->DP |= DDI_PORT_WIDTH_X1; | |
688 | break; | |
689 | case 2: | |
690 | intel_dp->DP |= DDI_PORT_WIDTH_X2; | |
691 | break; | |
692 | case 4: | |
693 | intel_dp->DP |= DDI_PORT_WIDTH_X4; | |
694 | break; | |
695 | default: | |
696 | intel_dp->DP |= DDI_PORT_WIDTH_X4; | |
697 | WARN(1, "Unexpected DP lane count %d\n", | |
698 | intel_dp->lane_count); | |
699 | break; | |
700 | } | |
701 | ||
8fed6193 TI |
702 | if (intel_dp->has_audio) { |
703 | DRM_DEBUG_DRIVER("DP audio on pipe %c on DDI\n", | |
704 | pipe_name(intel_crtc->pipe)); | |
705 | ||
706 | /* write eld */ | |
707 | DRM_DEBUG_DRIVER("DP audio: write eld information\n"); | |
708 | intel_write_eld(encoder, adjusted_mode); | |
709 | } | |
710 | ||
247d89f6 PZ |
711 | intel_dp_init_link_config(intel_dp); |
712 | ||
713 | } else if (type == INTEL_OUTPUT_HDMI) { | |
714 | struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); | |
715 | ||
716 | if (intel_hdmi->has_audio) { | |
717 | /* Proper support for digital audio needs a new logic | |
718 | * and a new set of registers, so we leave it for future | |
719 | * patch bombing. | |
720 | */ | |
721 | DRM_DEBUG_DRIVER("HDMI audio on pipe %c on DDI\n", | |
722 | pipe_name(intel_crtc->pipe)); | |
723 | ||
724 | /* write eld */ | |
725 | DRM_DEBUG_DRIVER("HDMI audio: write eld information\n"); | |
726 | intel_write_eld(encoder, adjusted_mode); | |
727 | } | |
72662e10 | 728 | |
247d89f6 PZ |
729 | intel_hdmi->set_infoframes(encoder, adjusted_mode); |
730 | } | |
8d9ddbcb PZ |
731 | } |
732 | ||
733 | static struct intel_encoder * | |
734 | intel_ddi_get_crtc_encoder(struct drm_crtc *crtc) | |
735 | { | |
736 | struct drm_device *dev = crtc->dev; | |
737 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
738 | struct intel_encoder *intel_encoder, *ret = NULL; | |
739 | int num_encoders = 0; | |
740 | ||
741 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { | |
742 | ret = intel_encoder; | |
743 | num_encoders++; | |
744 | } | |
745 | ||
746 | if (num_encoders != 1) | |
747 | WARN(1, "%d encoders on crtc for pipe %d\n", num_encoders, | |
748 | intel_crtc->pipe); | |
749 | ||
750 | BUG_ON(ret == NULL); | |
751 | return ret; | |
752 | } | |
753 | ||
6441ab5f PZ |
754 | void intel_ddi_put_crtc_pll(struct drm_crtc *crtc) |
755 | { | |
756 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
757 | struct intel_ddi_plls *plls = &dev_priv->ddi_plls; | |
758 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
759 | uint32_t val; | |
760 | ||
761 | switch (intel_crtc->ddi_pll_sel) { | |
762 | case PORT_CLK_SEL_SPLL: | |
763 | plls->spll_refcount--; | |
764 | if (plls->spll_refcount == 0) { | |
765 | DRM_DEBUG_KMS("Disabling SPLL\n"); | |
766 | val = I915_READ(SPLL_CTL); | |
767 | WARN_ON(!(val & SPLL_PLL_ENABLE)); | |
768 | I915_WRITE(SPLL_CTL, val & ~SPLL_PLL_ENABLE); | |
769 | POSTING_READ(SPLL_CTL); | |
770 | } | |
771 | break; | |
772 | case PORT_CLK_SEL_WRPLL1: | |
773 | plls->wrpll1_refcount--; | |
774 | if (plls->wrpll1_refcount == 0) { | |
775 | DRM_DEBUG_KMS("Disabling WRPLL 1\n"); | |
776 | val = I915_READ(WRPLL_CTL1); | |
777 | WARN_ON(!(val & WRPLL_PLL_ENABLE)); | |
778 | I915_WRITE(WRPLL_CTL1, val & ~WRPLL_PLL_ENABLE); | |
779 | POSTING_READ(WRPLL_CTL1); | |
780 | } | |
781 | break; | |
782 | case PORT_CLK_SEL_WRPLL2: | |
783 | plls->wrpll2_refcount--; | |
784 | if (plls->wrpll2_refcount == 0) { | |
785 | DRM_DEBUG_KMS("Disabling WRPLL 2\n"); | |
786 | val = I915_READ(WRPLL_CTL2); | |
787 | WARN_ON(!(val & WRPLL_PLL_ENABLE)); | |
788 | I915_WRITE(WRPLL_CTL2, val & ~WRPLL_PLL_ENABLE); | |
789 | POSTING_READ(WRPLL_CTL2); | |
790 | } | |
791 | break; | |
792 | } | |
793 | ||
794 | WARN(plls->spll_refcount < 0, "Invalid SPLL refcount\n"); | |
795 | WARN(plls->wrpll1_refcount < 0, "Invalid WRPLL1 refcount\n"); | |
796 | WARN(plls->wrpll2_refcount < 0, "Invalid WRPLL2 refcount\n"); | |
797 | ||
798 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_NONE; | |
799 | } | |
800 | ||
801 | static void intel_ddi_calculate_wrpll(int clock, int *p, int *n2, int *r2) | |
802 | { | |
803 | u32 i; | |
804 | ||
805 | for (i = 0; i < ARRAY_SIZE(wrpll_tmds_clock_table); i++) | |
806 | if (clock <= wrpll_tmds_clock_table[i].clock) | |
807 | break; | |
808 | ||
809 | if (i == ARRAY_SIZE(wrpll_tmds_clock_table)) | |
810 | i--; | |
811 | ||
812 | *p = wrpll_tmds_clock_table[i].p; | |
813 | *n2 = wrpll_tmds_clock_table[i].n2; | |
814 | *r2 = wrpll_tmds_clock_table[i].r2; | |
815 | ||
816 | if (wrpll_tmds_clock_table[i].clock != clock) | |
817 | DRM_INFO("WRPLL: using settings for %dKHz on %dKHz mode\n", | |
818 | wrpll_tmds_clock_table[i].clock, clock); | |
819 | ||
820 | DRM_DEBUG_KMS("WRPLL: %dKHz refresh rate with p=%d, n2=%d r2=%d\n", | |
821 | clock, *p, *n2, *r2); | |
822 | } | |
823 | ||
824 | bool intel_ddi_pll_mode_set(struct drm_crtc *crtc, int clock) | |
825 | { | |
826 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
827 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); | |
068759bd | 828 | struct drm_encoder *encoder = &intel_encoder->base; |
6441ab5f PZ |
829 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
830 | struct intel_ddi_plls *plls = &dev_priv->ddi_plls; | |
831 | int type = intel_encoder->type; | |
832 | enum pipe pipe = intel_crtc->pipe; | |
833 | uint32_t reg, val; | |
834 | ||
835 | /* TODO: reuse PLLs when possible (compare values) */ | |
836 | ||
837 | intel_ddi_put_crtc_pll(crtc); | |
838 | ||
068759bd PZ |
839 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
840 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
841 | ||
842 | switch (intel_dp->link_bw) { | |
843 | case DP_LINK_BW_1_62: | |
844 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_810; | |
845 | break; | |
846 | case DP_LINK_BW_2_7: | |
847 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_1350; | |
848 | break; | |
849 | case DP_LINK_BW_5_4: | |
850 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_2700; | |
851 | break; | |
852 | default: | |
853 | DRM_ERROR("Link bandwidth %d unsupported\n", | |
854 | intel_dp->link_bw); | |
855 | return false; | |
856 | } | |
857 | ||
858 | /* We don't need to turn any PLL on because we'll use LCPLL. */ | |
859 | return true; | |
860 | ||
861 | } else if (type == INTEL_OUTPUT_HDMI) { | |
6441ab5f PZ |
862 | int p, n2, r2; |
863 | ||
864 | if (plls->wrpll1_refcount == 0) { | |
865 | DRM_DEBUG_KMS("Using WRPLL 1 on pipe %c\n", | |
866 | pipe_name(pipe)); | |
867 | plls->wrpll1_refcount++; | |
868 | reg = WRPLL_CTL1; | |
869 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_WRPLL1; | |
870 | } else if (plls->wrpll2_refcount == 0) { | |
871 | DRM_DEBUG_KMS("Using WRPLL 2 on pipe %c\n", | |
872 | pipe_name(pipe)); | |
873 | plls->wrpll2_refcount++; | |
874 | reg = WRPLL_CTL2; | |
875 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_WRPLL2; | |
876 | } else { | |
877 | DRM_ERROR("No WRPLLs available!\n"); | |
878 | return false; | |
879 | } | |
880 | ||
881 | WARN(I915_READ(reg) & WRPLL_PLL_ENABLE, | |
882 | "WRPLL already enabled\n"); | |
883 | ||
884 | intel_ddi_calculate_wrpll(clock, &p, &n2, &r2); | |
885 | ||
886 | val = WRPLL_PLL_ENABLE | WRPLL_PLL_SELECT_LCPLL_2700 | | |
887 | WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) | | |
888 | WRPLL_DIVIDER_POST(p); | |
889 | ||
890 | } else if (type == INTEL_OUTPUT_ANALOG) { | |
891 | if (plls->spll_refcount == 0) { | |
892 | DRM_DEBUG_KMS("Using SPLL on pipe %c\n", | |
893 | pipe_name(pipe)); | |
894 | plls->spll_refcount++; | |
895 | reg = SPLL_CTL; | |
896 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_SPLL; | |
897 | } | |
898 | ||
899 | WARN(I915_READ(reg) & SPLL_PLL_ENABLE, | |
900 | "SPLL already enabled\n"); | |
901 | ||
39bc66c9 | 902 | val = SPLL_PLL_ENABLE | SPLL_PLL_FREQ_1350MHz | SPLL_PLL_SSC; |
6441ab5f PZ |
903 | |
904 | } else { | |
905 | WARN(1, "Invalid DDI encoder type %d\n", type); | |
906 | return false; | |
907 | } | |
908 | ||
909 | I915_WRITE(reg, val); | |
910 | udelay(20); | |
911 | ||
912 | return true; | |
913 | } | |
914 | ||
dae84799 PZ |
915 | void intel_ddi_set_pipe_settings(struct drm_crtc *crtc) |
916 | { | |
917 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
918 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
919 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); | |
c9809791 | 920 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
dae84799 PZ |
921 | int type = intel_encoder->type; |
922 | uint32_t temp; | |
923 | ||
924 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { | |
925 | ||
c9809791 | 926 | temp = TRANS_MSA_SYNC_CLK; |
dae84799 PZ |
927 | switch (intel_crtc->bpp) { |
928 | case 18: | |
c9809791 | 929 | temp |= TRANS_MSA_6_BPC; |
dae84799 PZ |
930 | break; |
931 | case 24: | |
c9809791 | 932 | temp |= TRANS_MSA_8_BPC; |
dae84799 PZ |
933 | break; |
934 | case 30: | |
c9809791 | 935 | temp |= TRANS_MSA_10_BPC; |
dae84799 PZ |
936 | break; |
937 | case 36: | |
c9809791 | 938 | temp |= TRANS_MSA_12_BPC; |
dae84799 PZ |
939 | break; |
940 | default: | |
c9809791 PZ |
941 | temp |= TRANS_MSA_8_BPC; |
942 | WARN(1, "%d bpp unsupported by DDI function\n", | |
dae84799 PZ |
943 | intel_crtc->bpp); |
944 | } | |
c9809791 | 945 | I915_WRITE(TRANS_MSA_MISC(cpu_transcoder), temp); |
dae84799 PZ |
946 | } |
947 | } | |
948 | ||
8d9ddbcb PZ |
949 | void intel_ddi_enable_pipe_func(struct drm_crtc *crtc) |
950 | { | |
951 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
952 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); | |
7739c33b | 953 | struct drm_encoder *encoder = &intel_encoder->base; |
8d9ddbcb PZ |
954 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
955 | enum pipe pipe = intel_crtc->pipe; | |
ad80a810 | 956 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
174edf1f | 957 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
7739c33b | 958 | int type = intel_encoder->type; |
8d9ddbcb PZ |
959 | uint32_t temp; |
960 | ||
ad80a810 PZ |
961 | /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */ |
962 | temp = TRANS_DDI_FUNC_ENABLE; | |
174edf1f | 963 | temp |= TRANS_DDI_SELECT_PORT(port); |
dfcef252 PZ |
964 | |
965 | switch (intel_crtc->bpp) { | |
966 | case 18: | |
ad80a810 | 967 | temp |= TRANS_DDI_BPC_6; |
dfcef252 PZ |
968 | break; |
969 | case 24: | |
ad80a810 | 970 | temp |= TRANS_DDI_BPC_8; |
dfcef252 PZ |
971 | break; |
972 | case 30: | |
ad80a810 | 973 | temp |= TRANS_DDI_BPC_10; |
dfcef252 PZ |
974 | break; |
975 | case 36: | |
ad80a810 | 976 | temp |= TRANS_DDI_BPC_12; |
dfcef252 PZ |
977 | break; |
978 | default: | |
ad80a810 | 979 | WARN(1, "%d bpp unsupported by transcoder DDI function\n", |
dfcef252 PZ |
980 | intel_crtc->bpp); |
981 | } | |
72662e10 | 982 | |
8d9ddbcb | 983 | if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC) |
ad80a810 | 984 | temp |= TRANS_DDI_PVSYNC; |
8d9ddbcb | 985 | if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC) |
ad80a810 | 986 | temp |= TRANS_DDI_PHSYNC; |
f63eb7c4 | 987 | |
e6f0bfc4 PZ |
988 | if (cpu_transcoder == TRANSCODER_EDP) { |
989 | switch (pipe) { | |
990 | case PIPE_A: | |
991 | temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; | |
992 | break; | |
993 | case PIPE_B: | |
994 | temp |= TRANS_DDI_EDP_INPUT_B_ONOFF; | |
995 | break; | |
996 | case PIPE_C: | |
997 | temp |= TRANS_DDI_EDP_INPUT_C_ONOFF; | |
998 | break; | |
999 | default: | |
1000 | BUG(); | |
1001 | break; | |
1002 | } | |
1003 | } | |
1004 | ||
7739c33b PZ |
1005 | if (type == INTEL_OUTPUT_HDMI) { |
1006 | struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); | |
8d9ddbcb PZ |
1007 | |
1008 | if (intel_hdmi->has_hdmi_sink) | |
ad80a810 | 1009 | temp |= TRANS_DDI_MODE_SELECT_HDMI; |
8d9ddbcb | 1010 | else |
ad80a810 | 1011 | temp |= TRANS_DDI_MODE_SELECT_DVI; |
8d9ddbcb | 1012 | |
7739c33b | 1013 | } else if (type == INTEL_OUTPUT_ANALOG) { |
ad80a810 | 1014 | temp |= TRANS_DDI_MODE_SELECT_FDI; |
349d7e5d | 1015 | temp |= (intel_crtc->fdi_lanes - 1) << 1; |
7739c33b PZ |
1016 | |
1017 | } else if (type == INTEL_OUTPUT_DISPLAYPORT || | |
1018 | type == INTEL_OUTPUT_EDP) { | |
1019 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1020 | ||
ad80a810 | 1021 | temp |= TRANS_DDI_MODE_SELECT_DP_SST; |
7739c33b PZ |
1022 | |
1023 | switch (intel_dp->lane_count) { | |
1024 | case 1: | |
ad80a810 | 1025 | temp |= TRANS_DDI_PORT_WIDTH_X1; |
7739c33b PZ |
1026 | break; |
1027 | case 2: | |
ad80a810 | 1028 | temp |= TRANS_DDI_PORT_WIDTH_X2; |
7739c33b PZ |
1029 | break; |
1030 | case 4: | |
ad80a810 | 1031 | temp |= TRANS_DDI_PORT_WIDTH_X4; |
7739c33b PZ |
1032 | break; |
1033 | default: | |
ad80a810 | 1034 | temp |= TRANS_DDI_PORT_WIDTH_X4; |
7739c33b PZ |
1035 | WARN(1, "Unsupported lane count %d\n", |
1036 | intel_dp->lane_count); | |
1037 | } | |
1038 | ||
8d9ddbcb PZ |
1039 | } else { |
1040 | WARN(1, "Invalid encoder type %d for pipe %d\n", | |
1041 | intel_encoder->type, pipe); | |
1042 | } | |
1043 | ||
ad80a810 | 1044 | I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp); |
8d9ddbcb | 1045 | } |
72662e10 | 1046 | |
ad80a810 PZ |
1047 | void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv, |
1048 | enum transcoder cpu_transcoder) | |
8d9ddbcb | 1049 | { |
ad80a810 | 1050 | uint32_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
8d9ddbcb PZ |
1051 | uint32_t val = I915_READ(reg); |
1052 | ||
ad80a810 PZ |
1053 | val &= ~(TRANS_DDI_FUNC_ENABLE | TRANS_DDI_PORT_MASK); |
1054 | val |= TRANS_DDI_PORT_NONE; | |
8d9ddbcb | 1055 | I915_WRITE(reg, val); |
72662e10 ED |
1056 | } |
1057 | ||
bcbc889b PZ |
1058 | bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector) |
1059 | { | |
1060 | struct drm_device *dev = intel_connector->base.dev; | |
1061 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1062 | struct intel_encoder *intel_encoder = intel_connector->encoder; | |
1063 | int type = intel_connector->base.connector_type; | |
1064 | enum port port = intel_ddi_get_encoder_port(intel_encoder); | |
1065 | enum pipe pipe = 0; | |
1066 | enum transcoder cpu_transcoder; | |
1067 | uint32_t tmp; | |
1068 | ||
1069 | if (!intel_encoder->get_hw_state(intel_encoder, &pipe)) | |
1070 | return false; | |
1071 | ||
1072 | if (port == PORT_A) | |
1073 | cpu_transcoder = TRANSCODER_EDP; | |
1074 | else | |
1a240d4d | 1075 | cpu_transcoder = (enum transcoder) pipe; |
bcbc889b PZ |
1076 | |
1077 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); | |
1078 | ||
1079 | switch (tmp & TRANS_DDI_MODE_SELECT_MASK) { | |
1080 | case TRANS_DDI_MODE_SELECT_HDMI: | |
1081 | case TRANS_DDI_MODE_SELECT_DVI: | |
1082 | return (type == DRM_MODE_CONNECTOR_HDMIA); | |
1083 | ||
1084 | case TRANS_DDI_MODE_SELECT_DP_SST: | |
1085 | if (type == DRM_MODE_CONNECTOR_eDP) | |
1086 | return true; | |
1087 | case TRANS_DDI_MODE_SELECT_DP_MST: | |
1088 | return (type == DRM_MODE_CONNECTOR_DisplayPort); | |
1089 | ||
1090 | case TRANS_DDI_MODE_SELECT_FDI: | |
1091 | return (type == DRM_MODE_CONNECTOR_VGA); | |
1092 | ||
1093 | default: | |
1094 | return false; | |
1095 | } | |
1096 | } | |
1097 | ||
85234cdc DV |
1098 | bool intel_ddi_get_hw_state(struct intel_encoder *encoder, |
1099 | enum pipe *pipe) | |
1100 | { | |
1101 | struct drm_device *dev = encoder->base.dev; | |
1102 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fe43d3f5 | 1103 | enum port port = intel_ddi_get_encoder_port(encoder); |
85234cdc DV |
1104 | u32 tmp; |
1105 | int i; | |
1106 | ||
fe43d3f5 | 1107 | tmp = I915_READ(DDI_BUF_CTL(port)); |
85234cdc DV |
1108 | |
1109 | if (!(tmp & DDI_BUF_CTL_ENABLE)) | |
1110 | return false; | |
1111 | ||
ad80a810 PZ |
1112 | if (port == PORT_A) { |
1113 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); | |
85234cdc | 1114 | |
ad80a810 PZ |
1115 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { |
1116 | case TRANS_DDI_EDP_INPUT_A_ON: | |
1117 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
1118 | *pipe = PIPE_A; | |
1119 | break; | |
1120 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
1121 | *pipe = PIPE_B; | |
1122 | break; | |
1123 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
1124 | *pipe = PIPE_C; | |
1125 | break; | |
1126 | } | |
1127 | ||
1128 | return true; | |
1129 | } else { | |
1130 | for (i = TRANSCODER_A; i <= TRANSCODER_C; i++) { | |
1131 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(i)); | |
1132 | ||
1133 | if ((tmp & TRANS_DDI_PORT_MASK) | |
1134 | == TRANS_DDI_SELECT_PORT(port)) { | |
1135 | *pipe = i; | |
1136 | return true; | |
1137 | } | |
85234cdc DV |
1138 | } |
1139 | } | |
1140 | ||
fe43d3f5 | 1141 | DRM_DEBUG_KMS("No pipe for ddi port %i found\n", port); |
85234cdc DV |
1142 | |
1143 | return true; | |
1144 | } | |
1145 | ||
6441ab5f PZ |
1146 | static uint32_t intel_ddi_get_crtc_pll(struct drm_i915_private *dev_priv, |
1147 | enum pipe pipe) | |
1148 | { | |
1149 | uint32_t temp, ret; | |
1150 | enum port port; | |
ad80a810 PZ |
1151 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
1152 | pipe); | |
6441ab5f PZ |
1153 | int i; |
1154 | ||
ad80a810 PZ |
1155 | if (cpu_transcoder == TRANSCODER_EDP) { |
1156 | port = PORT_A; | |
1157 | } else { | |
1158 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); | |
1159 | temp &= TRANS_DDI_PORT_MASK; | |
1160 | ||
1161 | for (i = PORT_B; i <= PORT_E; i++) | |
1162 | if (temp == TRANS_DDI_SELECT_PORT(i)) | |
1163 | port = i; | |
1164 | } | |
6441ab5f PZ |
1165 | |
1166 | ret = I915_READ(PORT_CLK_SEL(port)); | |
1167 | ||
1168 | DRM_DEBUG_KMS("Pipe %c connected to port %c using clock 0x%08x\n", | |
1169 | pipe_name(pipe), port_name(port), ret); | |
1170 | ||
1171 | return ret; | |
1172 | } | |
1173 | ||
1174 | void intel_ddi_setup_hw_pll_state(struct drm_device *dev) | |
1175 | { | |
1176 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1177 | enum pipe pipe; | |
1178 | struct intel_crtc *intel_crtc; | |
1179 | ||
1180 | for_each_pipe(pipe) { | |
1181 | intel_crtc = | |
1182 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); | |
1183 | ||
1184 | if (!intel_crtc->active) | |
1185 | continue; | |
1186 | ||
1187 | intel_crtc->ddi_pll_sel = intel_ddi_get_crtc_pll(dev_priv, | |
1188 | pipe); | |
1189 | ||
1190 | switch (intel_crtc->ddi_pll_sel) { | |
1191 | case PORT_CLK_SEL_SPLL: | |
1192 | dev_priv->ddi_plls.spll_refcount++; | |
1193 | break; | |
1194 | case PORT_CLK_SEL_WRPLL1: | |
1195 | dev_priv->ddi_plls.wrpll1_refcount++; | |
1196 | break; | |
1197 | case PORT_CLK_SEL_WRPLL2: | |
1198 | dev_priv->ddi_plls.wrpll2_refcount++; | |
1199 | break; | |
1200 | } | |
1201 | } | |
1202 | } | |
1203 | ||
fc914639 PZ |
1204 | void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc) |
1205 | { | |
1206 | struct drm_crtc *crtc = &intel_crtc->base; | |
1207 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
1208 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); | |
1209 | enum port port = intel_ddi_get_encoder_port(intel_encoder); | |
bb523fc0 | 1210 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
fc914639 | 1211 | |
bb523fc0 PZ |
1212 | if (cpu_transcoder != TRANSCODER_EDP) |
1213 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), | |
1214 | TRANS_CLK_SEL_PORT(port)); | |
fc914639 PZ |
1215 | } |
1216 | ||
1217 | void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc) | |
1218 | { | |
1219 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
bb523fc0 | 1220 | enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; |
fc914639 | 1221 | |
bb523fc0 PZ |
1222 | if (cpu_transcoder != TRANSCODER_EDP) |
1223 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), | |
1224 | TRANS_CLK_SEL_DISABLED); | |
fc914639 PZ |
1225 | } |
1226 | ||
00c09d70 | 1227 | static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder) |
6441ab5f | 1228 | { |
c19b0669 PZ |
1229 | struct drm_encoder *encoder = &intel_encoder->base; |
1230 | struct drm_crtc *crtc = encoder->crtc; | |
1231 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; | |
6441ab5f PZ |
1232 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
1233 | enum port port = intel_ddi_get_encoder_port(intel_encoder); | |
82a4d9c0 | 1234 | int type = intel_encoder->type; |
6441ab5f | 1235 | |
82a4d9c0 PZ |
1236 | if (type == INTEL_OUTPUT_EDP) { |
1237 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1238 | ironlake_edp_panel_vdd_on(intel_dp); | |
1239 | ironlake_edp_panel_on(intel_dp); | |
1240 | ironlake_edp_panel_vdd_off(intel_dp, true); | |
1241 | } | |
6441ab5f | 1242 | |
82a4d9c0 | 1243 | WARN_ON(intel_crtc->ddi_pll_sel == PORT_CLK_SEL_NONE); |
6441ab5f | 1244 | I915_WRITE(PORT_CLK_SEL(port), intel_crtc->ddi_pll_sel); |
c19b0669 | 1245 | |
82a4d9c0 | 1246 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
c19b0669 PZ |
1247 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
1248 | ||
1249 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); | |
1250 | intel_dp_start_link_train(intel_dp); | |
1251 | intel_dp_complete_link_train(intel_dp); | |
1252 | } | |
6441ab5f PZ |
1253 | } |
1254 | ||
00c09d70 | 1255 | static void intel_ddi_post_disable(struct intel_encoder *intel_encoder) |
6441ab5f PZ |
1256 | { |
1257 | struct drm_encoder *encoder = &intel_encoder->base; | |
1258 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; | |
1259 | enum port port = intel_ddi_get_encoder_port(intel_encoder); | |
82a4d9c0 | 1260 | int type = intel_encoder->type; |
2886e93f | 1261 | uint32_t val; |
a836bdf9 | 1262 | bool wait = false; |
2886e93f PZ |
1263 | |
1264 | val = I915_READ(DDI_BUF_CTL(port)); | |
1265 | if (val & DDI_BUF_CTL_ENABLE) { | |
1266 | val &= ~DDI_BUF_CTL_ENABLE; | |
1267 | I915_WRITE(DDI_BUF_CTL(port), val); | |
a836bdf9 | 1268 | wait = true; |
2886e93f | 1269 | } |
6441ab5f | 1270 | |
a836bdf9 PZ |
1271 | val = I915_READ(DP_TP_CTL(port)); |
1272 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
1273 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
1274 | I915_WRITE(DP_TP_CTL(port), val); | |
1275 | ||
1276 | if (wait) | |
1277 | intel_wait_ddi_buf_idle(dev_priv, port); | |
1278 | ||
82a4d9c0 PZ |
1279 | if (type == INTEL_OUTPUT_EDP) { |
1280 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1281 | ironlake_edp_panel_vdd_on(intel_dp); | |
1282 | ironlake_edp_panel_off(intel_dp); | |
1283 | } | |
1284 | ||
6441ab5f PZ |
1285 | I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE); |
1286 | } | |
1287 | ||
00c09d70 | 1288 | static void intel_enable_ddi(struct intel_encoder *intel_encoder) |
72662e10 | 1289 | { |
6547fef8 | 1290 | struct drm_encoder *encoder = &intel_encoder->base; |
7b9f35a6 WX |
1291 | struct drm_crtc *crtc = encoder->crtc; |
1292 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1293 | int pipe = intel_crtc->pipe; | |
6547fef8 | 1294 | struct drm_device *dev = encoder->dev; |
72662e10 | 1295 | struct drm_i915_private *dev_priv = dev->dev_private; |
6547fef8 PZ |
1296 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
1297 | int type = intel_encoder->type; | |
7b9f35a6 | 1298 | uint32_t tmp; |
72662e10 | 1299 | |
6547fef8 PZ |
1300 | if (type == INTEL_OUTPUT_HDMI) { |
1301 | /* In HDMI/DVI mode, the port width, and swing/emphasis values | |
1302 | * are ignored so nothing special needs to be done besides | |
1303 | * enabling the port. | |
1304 | */ | |
1305 | I915_WRITE(DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE); | |
d6c50ff8 PZ |
1306 | } else if (type == INTEL_OUTPUT_EDP) { |
1307 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1308 | ||
1309 | ironlake_edp_backlight_on(intel_dp); | |
6547fef8 | 1310 | } |
7b9f35a6 WX |
1311 | |
1312 | if (intel_crtc->eld_vld) { | |
1313 | tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); | |
1314 | tmp |= ((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4)); | |
1315 | I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp); | |
1316 | } | |
5ab432ef DV |
1317 | } |
1318 | ||
00c09d70 | 1319 | static void intel_disable_ddi(struct intel_encoder *intel_encoder) |
5ab432ef | 1320 | { |
d6c50ff8 | 1321 | struct drm_encoder *encoder = &intel_encoder->base; |
7b9f35a6 WX |
1322 | struct drm_crtc *crtc = encoder->crtc; |
1323 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1324 | int pipe = intel_crtc->pipe; | |
d6c50ff8 | 1325 | int type = intel_encoder->type; |
7b9f35a6 WX |
1326 | struct drm_device *dev = encoder->dev; |
1327 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1328 | uint32_t tmp; | |
d6c50ff8 PZ |
1329 | |
1330 | if (type == INTEL_OUTPUT_EDP) { | |
1331 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1332 | ||
1333 | ironlake_edp_backlight_off(intel_dp); | |
1334 | } | |
7b9f35a6 WX |
1335 | |
1336 | tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); | |
1337 | tmp &= ~((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4)); | |
1338 | I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp); | |
72662e10 | 1339 | } |
79f689aa | 1340 | |
b8fc2f6a | 1341 | int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv) |
79f689aa PZ |
1342 | { |
1343 | if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT) | |
1344 | return 450; | |
1345 | else if ((I915_READ(LCPLL_CTL) & LCPLL_CLK_FREQ_MASK) == | |
1346 | LCPLL_CLK_FREQ_450) | |
1347 | return 450; | |
d567b07f PZ |
1348 | else if (IS_ULT(dev_priv->dev)) |
1349 | return 338; | |
79f689aa PZ |
1350 | else |
1351 | return 540; | |
1352 | } | |
1353 | ||
1354 | void intel_ddi_pll_init(struct drm_device *dev) | |
1355 | { | |
1356 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1357 | uint32_t val = I915_READ(LCPLL_CTL); | |
1358 | ||
1359 | /* The LCPLL register should be turned on by the BIOS. For now let's | |
1360 | * just check its state and print errors in case something is wrong. | |
1361 | * Don't even try to turn it on. | |
1362 | */ | |
1363 | ||
1364 | DRM_DEBUG_KMS("CDCLK running at %dMHz\n", | |
1365 | intel_ddi_get_cdclk_freq(dev_priv)); | |
1366 | ||
1367 | if (val & LCPLL_CD_SOURCE_FCLK) | |
1368 | DRM_ERROR("CDCLK source is not LCPLL\n"); | |
1369 | ||
1370 | if (val & LCPLL_PLL_DISABLE) | |
1371 | DRM_ERROR("LCPLL is disabled\n"); | |
1372 | } | |
c19b0669 PZ |
1373 | |
1374 | void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder) | |
1375 | { | |
174edf1f PZ |
1376 | struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
1377 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
c19b0669 | 1378 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; |
174edf1f | 1379 | enum port port = intel_dig_port->port; |
c19b0669 PZ |
1380 | bool wait; |
1381 | uint32_t val; | |
1382 | ||
1383 | if (I915_READ(DP_TP_CTL(port)) & DP_TP_CTL_ENABLE) { | |
1384 | val = I915_READ(DDI_BUF_CTL(port)); | |
1385 | if (val & DDI_BUF_CTL_ENABLE) { | |
1386 | val &= ~DDI_BUF_CTL_ENABLE; | |
1387 | I915_WRITE(DDI_BUF_CTL(port), val); | |
1388 | wait = true; | |
1389 | } | |
1390 | ||
1391 | val = I915_READ(DP_TP_CTL(port)); | |
1392 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
1393 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
1394 | I915_WRITE(DP_TP_CTL(port), val); | |
1395 | POSTING_READ(DP_TP_CTL(port)); | |
1396 | ||
1397 | if (wait) | |
1398 | intel_wait_ddi_buf_idle(dev_priv, port); | |
1399 | } | |
1400 | ||
1401 | val = DP_TP_CTL_ENABLE | DP_TP_CTL_MODE_SST | | |
1402 | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE; | |
1403 | if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN) | |
1404 | val |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; | |
1405 | I915_WRITE(DP_TP_CTL(port), val); | |
1406 | POSTING_READ(DP_TP_CTL(port)); | |
1407 | ||
1408 | intel_dp->DP |= DDI_BUF_CTL_ENABLE; | |
1409 | I915_WRITE(DDI_BUF_CTL(port), intel_dp->DP); | |
1410 | POSTING_READ(DDI_BUF_CTL(port)); | |
1411 | ||
1412 | udelay(600); | |
1413 | } | |
00c09d70 | 1414 | |
1ad960f2 PZ |
1415 | void intel_ddi_fdi_disable(struct drm_crtc *crtc) |
1416 | { | |
1417 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
1418 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); | |
1419 | uint32_t val; | |
1420 | ||
1421 | intel_ddi_post_disable(intel_encoder); | |
1422 | ||
1423 | val = I915_READ(_FDI_RXA_CTL); | |
1424 | val &= ~FDI_RX_ENABLE; | |
1425 | I915_WRITE(_FDI_RXA_CTL, val); | |
1426 | ||
1427 | val = I915_READ(_FDI_RXA_MISC); | |
1428 | val &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); | |
1429 | val |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); | |
1430 | I915_WRITE(_FDI_RXA_MISC, val); | |
1431 | ||
1432 | val = I915_READ(_FDI_RXA_CTL); | |
1433 | val &= ~FDI_PCDCLK; | |
1434 | I915_WRITE(_FDI_RXA_CTL, val); | |
1435 | ||
1436 | val = I915_READ(_FDI_RXA_CTL); | |
1437 | val &= ~FDI_RX_PLL_ENABLE; | |
1438 | I915_WRITE(_FDI_RXA_CTL, val); | |
1439 | } | |
1440 | ||
00c09d70 PZ |
1441 | static void intel_ddi_hot_plug(struct intel_encoder *intel_encoder) |
1442 | { | |
1443 | struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base); | |
1444 | int type = intel_encoder->type; | |
1445 | ||
1446 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) | |
1447 | intel_dp_check_link_status(intel_dp); | |
1448 | } | |
1449 | ||
1450 | static void intel_ddi_destroy(struct drm_encoder *encoder) | |
1451 | { | |
1452 | /* HDMI has nothing special to destroy, so we can go with this. */ | |
1453 | intel_dp_encoder_destroy(encoder); | |
1454 | } | |
1455 | ||
1456 | static bool intel_ddi_mode_fixup(struct drm_encoder *encoder, | |
1457 | const struct drm_display_mode *mode, | |
1458 | struct drm_display_mode *adjusted_mode) | |
1459 | { | |
1460 | struct intel_encoder *intel_encoder = to_intel_encoder(encoder); | |
1461 | int type = intel_encoder->type; | |
1462 | ||
1463 | WARN(type == INTEL_OUTPUT_UNKNOWN, "mode_fixup() on unknown output!\n"); | |
1464 | ||
1465 | if (type == INTEL_OUTPUT_HDMI) | |
1466 | return intel_hdmi_mode_fixup(encoder, mode, adjusted_mode); | |
1467 | else | |
1468 | return intel_dp_mode_fixup(encoder, mode, adjusted_mode); | |
1469 | } | |
1470 | ||
1471 | static const struct drm_encoder_funcs intel_ddi_funcs = { | |
1472 | .destroy = intel_ddi_destroy, | |
1473 | }; | |
1474 | ||
1475 | static const struct drm_encoder_helper_funcs intel_ddi_helper_funcs = { | |
1476 | .mode_fixup = intel_ddi_mode_fixup, | |
1477 | .mode_set = intel_ddi_mode_set, | |
1478 | .disable = intel_encoder_noop, | |
1479 | }; | |
1480 | ||
1481 | void intel_ddi_init(struct drm_device *dev, enum port port) | |
1482 | { | |
1483 | struct intel_digital_port *intel_dig_port; | |
1484 | struct intel_encoder *intel_encoder; | |
1485 | struct drm_encoder *encoder; | |
1486 | struct intel_connector *hdmi_connector = NULL; | |
1487 | struct intel_connector *dp_connector = NULL; | |
1488 | ||
1489 | intel_dig_port = kzalloc(sizeof(struct intel_digital_port), GFP_KERNEL); | |
1490 | if (!intel_dig_port) | |
1491 | return; | |
1492 | ||
1493 | dp_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL); | |
1494 | if (!dp_connector) { | |
1495 | kfree(intel_dig_port); | |
1496 | return; | |
1497 | } | |
1498 | ||
1499 | if (port != PORT_A) { | |
1500 | hdmi_connector = kzalloc(sizeof(struct intel_connector), | |
1501 | GFP_KERNEL); | |
1502 | if (!hdmi_connector) { | |
1503 | kfree(dp_connector); | |
1504 | kfree(intel_dig_port); | |
1505 | return; | |
1506 | } | |
1507 | } | |
1508 | ||
1509 | intel_encoder = &intel_dig_port->base; | |
1510 | encoder = &intel_encoder->base; | |
1511 | ||
1512 | drm_encoder_init(dev, encoder, &intel_ddi_funcs, | |
1513 | DRM_MODE_ENCODER_TMDS); | |
1514 | drm_encoder_helper_add(encoder, &intel_ddi_helper_funcs); | |
1515 | ||
1516 | intel_encoder->enable = intel_enable_ddi; | |
1517 | intel_encoder->pre_enable = intel_ddi_pre_enable; | |
1518 | intel_encoder->disable = intel_disable_ddi; | |
1519 | intel_encoder->post_disable = intel_ddi_post_disable; | |
1520 | intel_encoder->get_hw_state = intel_ddi_get_hw_state; | |
1521 | ||
1522 | intel_dig_port->port = port; | |
1523 | if (hdmi_connector) | |
1524 | intel_dig_port->hdmi.sdvox_reg = DDI_BUF_CTL(port); | |
1525 | else | |
1526 | intel_dig_port->hdmi.sdvox_reg = 0; | |
1527 | intel_dig_port->dp.output_reg = DDI_BUF_CTL(port); | |
1528 | ||
1529 | intel_encoder->type = INTEL_OUTPUT_UNKNOWN; | |
1530 | intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); | |
1531 | intel_encoder->cloneable = false; | |
1532 | intel_encoder->hot_plug = intel_ddi_hot_plug; | |
1533 | ||
1534 | if (hdmi_connector) | |
1535 | intel_hdmi_init_connector(intel_dig_port, hdmi_connector); | |
1536 | intel_dp_init_connector(intel_dig_port, dp_connector); | |
1537 | } |