Commit | Line | Data |
---|---|---|
9c8af882 LPC |
1 | /* |
2 | * Analog Devices ADV7511 HDMI transmitter driver | |
3 | * | |
4 | * Copyright 2012 Analog Devices Inc. | |
5 | * | |
6 | * Licensed under the GPL-2. | |
7 | */ | |
8 | ||
9 | #include <linux/device.h> | |
10 | #include <linux/gpio/consumer.h> | |
11 | #include <linux/i2c.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/regmap.h> | |
14 | #include <linux/slab.h> | |
15 | ||
16 | #include <drm/drmP.h> | |
17 | #include <drm/drm_crtc_helper.h> | |
18 | #include <drm/drm_edid.h> | |
19 | #include <drm/drm_encoder_slave.h> | |
20 | ||
21 | #include "adv7511.h" | |
22 | ||
23 | struct adv7511 { | |
24 | struct i2c_client *i2c_main; | |
25 | struct i2c_client *i2c_edid; | |
26 | ||
27 | struct regmap *regmap; | |
28 | struct regmap *packet_memory_regmap; | |
29 | enum drm_connector_status status; | |
c6169e49 | 30 | bool powered; |
9c8af882 LPC |
31 | |
32 | unsigned int f_tmds; | |
33 | ||
34 | unsigned int current_edid_segment; | |
35 | uint8_t edid_buf[256]; | |
a5241289 | 36 | bool edid_read; |
9c8af882 LPC |
37 | |
38 | wait_queue_head_t wq; | |
39 | struct drm_encoder *encoder; | |
40 | ||
41 | bool embedded_sync; | |
42 | enum adv7511_sync_polarity vsync_polarity; | |
43 | enum adv7511_sync_polarity hsync_polarity; | |
44 | bool rgb; | |
45 | ||
46 | struct edid *edid; | |
47 | ||
48 | struct gpio_desc *gpio_pd; | |
49 | }; | |
50 | ||
51 | static struct adv7511 *encoder_to_adv7511(struct drm_encoder *encoder) | |
52 | { | |
53 | return to_encoder_slave(encoder)->slave_priv; | |
54 | } | |
55 | ||
56 | /* ADI recommended values for proper operation. */ | |
8019ff6c | 57 | static const struct reg_sequence adv7511_fixed_registers[] = { |
9c8af882 LPC |
58 | { 0x98, 0x03 }, |
59 | { 0x9a, 0xe0 }, | |
60 | { 0x9c, 0x30 }, | |
61 | { 0x9d, 0x61 }, | |
62 | { 0xa2, 0xa4 }, | |
63 | { 0xa3, 0xa4 }, | |
64 | { 0xe0, 0xd0 }, | |
65 | { 0xf9, 0x00 }, | |
66 | { 0x55, 0x02 }, | |
67 | }; | |
68 | ||
69 | /* ----------------------------------------------------------------------------- | |
70 | * Register access | |
71 | */ | |
72 | ||
73 | static const uint8_t adv7511_register_defaults[] = { | |
74 | 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00 */ | |
75 | 0x00, 0x00, 0x01, 0x0e, 0xbc, 0x18, 0x01, 0x13, | |
76 | 0x25, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10 */ | |
77 | 0x46, 0x62, 0x04, 0xa8, 0x00, 0x00, 0x1c, 0x84, | |
78 | 0x1c, 0xbf, 0x04, 0xa8, 0x1e, 0x70, 0x02, 0x1e, /* 20 */ | |
79 | 0x00, 0x00, 0x04, 0xa8, 0x08, 0x12, 0x1b, 0xac, | |
80 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 30 */ | |
81 | 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xb0, | |
82 | 0x00, 0x50, 0x90, 0x7e, 0x79, 0x70, 0x00, 0x00, /* 40 */ | |
83 | 0x00, 0xa8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, | |
84 | 0x00, 0x00, 0x02, 0x0d, 0x00, 0x00, 0x00, 0x00, /* 50 */ | |
85 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
86 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 60 */ | |
87 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
88 | 0x01, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 70 */ | |
89 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
90 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 80 */ | |
91 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
92 | 0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 90 */ | |
93 | 0x0b, 0x02, 0x00, 0x18, 0x5a, 0x60, 0x00, 0x00, | |
94 | 0x00, 0x00, 0x80, 0x80, 0x08, 0x04, 0x00, 0x00, /* a0 */ | |
95 | 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x14, | |
96 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b0 */ | |
97 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
98 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c0 */ | |
99 | 0x00, 0x03, 0x00, 0x00, 0x02, 0x00, 0x01, 0x04, | |
100 | 0x30, 0xff, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, /* d0 */ | |
101 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01, | |
102 | 0x80, 0x75, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, /* e0 */ | |
103 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
104 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x11, 0x00, /* f0 */ | |
105 | 0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
106 | }; | |
107 | ||
108 | static bool adv7511_register_volatile(struct device *dev, unsigned int reg) | |
109 | { | |
110 | switch (reg) { | |
111 | case ADV7511_REG_CHIP_REVISION: | |
112 | case ADV7511_REG_SPDIF_FREQ: | |
113 | case ADV7511_REG_CTS_AUTOMATIC1: | |
114 | case ADV7511_REG_CTS_AUTOMATIC2: | |
115 | case ADV7511_REG_VIC_DETECTED: | |
116 | case ADV7511_REG_VIC_SEND: | |
117 | case ADV7511_REG_AUX_VIC_DETECTED: | |
118 | case ADV7511_REG_STATUS: | |
119 | case ADV7511_REG_GC(1): | |
120 | case ADV7511_REG_INT(0): | |
121 | case ADV7511_REG_INT(1): | |
122 | case ADV7511_REG_PLL_STATUS: | |
123 | case ADV7511_REG_AN(0): | |
124 | case ADV7511_REG_AN(1): | |
125 | case ADV7511_REG_AN(2): | |
126 | case ADV7511_REG_AN(3): | |
127 | case ADV7511_REG_AN(4): | |
128 | case ADV7511_REG_AN(5): | |
129 | case ADV7511_REG_AN(6): | |
130 | case ADV7511_REG_AN(7): | |
131 | case ADV7511_REG_HDCP_STATUS: | |
132 | case ADV7511_REG_BCAPS: | |
133 | case ADV7511_REG_BKSV(0): | |
134 | case ADV7511_REG_BKSV(1): | |
135 | case ADV7511_REG_BKSV(2): | |
136 | case ADV7511_REG_BKSV(3): | |
137 | case ADV7511_REG_BKSV(4): | |
138 | case ADV7511_REG_DDC_STATUS: | |
cd38a337 | 139 | case ADV7511_REG_EDID_READ_CTRL: |
9c8af882 LPC |
140 | case ADV7511_REG_BSTATUS(0): |
141 | case ADV7511_REG_BSTATUS(1): | |
142 | case ADV7511_REG_CHIP_ID_HIGH: | |
143 | case ADV7511_REG_CHIP_ID_LOW: | |
144 | return true; | |
145 | } | |
146 | ||
147 | return false; | |
148 | } | |
149 | ||
150 | static const struct regmap_config adv7511_regmap_config = { | |
151 | .reg_bits = 8, | |
152 | .val_bits = 8, | |
153 | ||
154 | .max_register = 0xff, | |
155 | .cache_type = REGCACHE_RBTREE, | |
156 | .reg_defaults_raw = adv7511_register_defaults, | |
157 | .num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults), | |
158 | ||
159 | .volatile_reg = adv7511_register_volatile, | |
160 | }; | |
161 | ||
162 | /* ----------------------------------------------------------------------------- | |
163 | * Hardware configuration | |
164 | */ | |
165 | ||
166 | static void adv7511_set_colormap(struct adv7511 *adv7511, bool enable, | |
167 | const uint16_t *coeff, | |
168 | unsigned int scaling_factor) | |
169 | { | |
170 | unsigned int i; | |
171 | ||
172 | regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1), | |
173 | ADV7511_CSC_UPDATE_MODE, ADV7511_CSC_UPDATE_MODE); | |
174 | ||
175 | if (enable) { | |
176 | for (i = 0; i < 12; ++i) { | |
177 | regmap_update_bits(adv7511->regmap, | |
178 | ADV7511_REG_CSC_UPPER(i), | |
179 | 0x1f, coeff[i] >> 8); | |
180 | regmap_write(adv7511->regmap, | |
181 | ADV7511_REG_CSC_LOWER(i), | |
182 | coeff[i] & 0xff); | |
183 | } | |
184 | } | |
185 | ||
186 | if (enable) | |
187 | regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0), | |
188 | 0xe0, 0x80 | (scaling_factor << 5)); | |
189 | else | |
190 | regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0), | |
191 | 0x80, 0x00); | |
192 | ||
193 | regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1), | |
194 | ADV7511_CSC_UPDATE_MODE, 0); | |
195 | } | |
196 | ||
197 | static int adv7511_packet_enable(struct adv7511 *adv7511, unsigned int packet) | |
198 | { | |
199 | if (packet & 0xff) | |
200 | regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0, | |
201 | packet, 0xff); | |
202 | ||
203 | if (packet & 0xff00) { | |
204 | packet >>= 8; | |
205 | regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1, | |
206 | packet, 0xff); | |
207 | } | |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
212 | static int adv7511_packet_disable(struct adv7511 *adv7511, unsigned int packet) | |
213 | { | |
214 | if (packet & 0xff) | |
215 | regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0, | |
216 | packet, 0x00); | |
217 | ||
218 | if (packet & 0xff00) { | |
219 | packet >>= 8; | |
220 | regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1, | |
221 | packet, 0x00); | |
222 | } | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
227 | /* Coefficients for adv7511 color space conversion */ | |
228 | static const uint16_t adv7511_csc_ycbcr_to_rgb[] = { | |
229 | 0x0734, 0x04ad, 0x0000, 0x1c1b, | |
230 | 0x1ddc, 0x04ad, 0x1f24, 0x0135, | |
231 | 0x0000, 0x04ad, 0x087c, 0x1b77, | |
232 | }; | |
233 | ||
234 | static void adv7511_set_config_csc(struct adv7511 *adv7511, | |
235 | struct drm_connector *connector, | |
236 | bool rgb) | |
237 | { | |
238 | struct adv7511_video_config config; | |
239 | bool output_format_422, output_format_ycbcr; | |
240 | unsigned int mode; | |
241 | uint8_t infoframe[17]; | |
242 | ||
243 | if (adv7511->edid) | |
244 | config.hdmi_mode = drm_detect_hdmi_monitor(adv7511->edid); | |
245 | else | |
246 | config.hdmi_mode = false; | |
247 | ||
248 | hdmi_avi_infoframe_init(&config.avi_infoframe); | |
249 | ||
250 | config.avi_infoframe.scan_mode = HDMI_SCAN_MODE_UNDERSCAN; | |
251 | ||
252 | if (rgb) { | |
253 | config.csc_enable = false; | |
254 | config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB; | |
255 | } else { | |
256 | config.csc_scaling_factor = ADV7511_CSC_SCALING_4; | |
257 | config.csc_coefficents = adv7511_csc_ycbcr_to_rgb; | |
258 | ||
259 | if ((connector->display_info.color_formats & | |
260 | DRM_COLOR_FORMAT_YCRCB422) && | |
261 | config.hdmi_mode) { | |
262 | config.csc_enable = false; | |
263 | config.avi_infoframe.colorspace = | |
264 | HDMI_COLORSPACE_YUV422; | |
265 | } else { | |
266 | config.csc_enable = true; | |
267 | config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB; | |
268 | } | |
269 | } | |
270 | ||
271 | if (config.hdmi_mode) { | |
272 | mode = ADV7511_HDMI_CFG_MODE_HDMI; | |
273 | ||
274 | switch (config.avi_infoframe.colorspace) { | |
275 | case HDMI_COLORSPACE_YUV444: | |
276 | output_format_422 = false; | |
277 | output_format_ycbcr = true; | |
278 | break; | |
279 | case HDMI_COLORSPACE_YUV422: | |
280 | output_format_422 = true; | |
281 | output_format_ycbcr = true; | |
282 | break; | |
283 | default: | |
284 | output_format_422 = false; | |
285 | output_format_ycbcr = false; | |
286 | break; | |
287 | } | |
288 | } else { | |
289 | mode = ADV7511_HDMI_CFG_MODE_DVI; | |
290 | output_format_422 = false; | |
291 | output_format_ycbcr = false; | |
292 | } | |
293 | ||
294 | adv7511_packet_disable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME); | |
295 | ||
296 | adv7511_set_colormap(adv7511, config.csc_enable, | |
297 | config.csc_coefficents, | |
298 | config.csc_scaling_factor); | |
299 | ||
300 | regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x81, | |
301 | (output_format_422 << 7) | output_format_ycbcr); | |
302 | ||
303 | regmap_update_bits(adv7511->regmap, ADV7511_REG_HDCP_HDMI_CFG, | |
304 | ADV7511_HDMI_CFG_MODE_MASK, mode); | |
305 | ||
306 | hdmi_avi_infoframe_pack(&config.avi_infoframe, infoframe, | |
307 | sizeof(infoframe)); | |
308 | ||
309 | /* The AVI infoframe id is not configurable */ | |
310 | regmap_bulk_write(adv7511->regmap, ADV7511_REG_AVI_INFOFRAME_VERSION, | |
311 | infoframe + 1, sizeof(infoframe) - 1); | |
312 | ||
313 | adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME); | |
314 | } | |
315 | ||
316 | static void adv7511_set_link_config(struct adv7511 *adv7511, | |
317 | const struct adv7511_link_config *config) | |
318 | { | |
319 | /* | |
320 | * The input style values documented in the datasheet don't match the | |
321 | * hardware register field values :-( | |
322 | */ | |
323 | static const unsigned int input_styles[4] = { 0, 2, 1, 3 }; | |
324 | ||
325 | unsigned int clock_delay; | |
326 | unsigned int color_depth; | |
327 | unsigned int input_id; | |
328 | ||
329 | clock_delay = (config->clock_delay + 1200) / 400; | |
330 | color_depth = config->input_color_depth == 8 ? 3 | |
331 | : (config->input_color_depth == 10 ? 1 : 2); | |
332 | ||
333 | /* TODO Support input ID 6 */ | |
334 | if (config->input_colorspace != HDMI_COLORSPACE_YUV422) | |
335 | input_id = config->input_clock == ADV7511_INPUT_CLOCK_DDR | |
336 | ? 5 : 0; | |
337 | else if (config->input_clock == ADV7511_INPUT_CLOCK_DDR) | |
338 | input_id = config->embedded_sync ? 8 : 7; | |
339 | else if (config->input_clock == ADV7511_INPUT_CLOCK_2X) | |
340 | input_id = config->embedded_sync ? 4 : 3; | |
341 | else | |
342 | input_id = config->embedded_sync ? 2 : 1; | |
343 | ||
344 | regmap_update_bits(adv7511->regmap, ADV7511_REG_I2C_FREQ_ID_CFG, 0xf, | |
345 | input_id); | |
346 | regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x7e, | |
347 | (color_depth << 4) | | |
348 | (input_styles[config->input_style] << 2)); | |
349 | regmap_write(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG2, | |
350 | config->input_justification << 3); | |
351 | regmap_write(adv7511->regmap, ADV7511_REG_TIMING_GEN_SEQ, | |
352 | config->sync_pulse << 2); | |
353 | ||
354 | regmap_write(adv7511->regmap, 0xba, clock_delay << 5); | |
355 | ||
356 | adv7511->embedded_sync = config->embedded_sync; | |
357 | adv7511->hsync_polarity = config->hsync_polarity; | |
358 | adv7511->vsync_polarity = config->vsync_polarity; | |
359 | adv7511->rgb = config->input_colorspace == HDMI_COLORSPACE_RGB; | |
360 | } | |
361 | ||
c6169e49 LP |
362 | static void adv7511_power_on(struct adv7511 *adv7511) |
363 | { | |
364 | adv7511->current_edid_segment = -1; | |
365 | ||
c6169e49 LP |
366 | regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, |
367 | ADV7511_POWER_POWER_DOWN, 0); | |
d0be8584 WS |
368 | if (adv7511->i2c_main->irq) { |
369 | /* | |
370 | * Documentation says the INT_ENABLE registers are reset in | |
371 | * POWER_DOWN mode. My 7511w preserved the bits, however. | |
372 | * Still, let's be safe and stick to the documentation. | |
373 | */ | |
374 | regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0), | |
375 | ADV7511_INT0_EDID_READY); | |
376 | regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1), | |
377 | ADV7511_INT1_DDC_ERROR); | |
378 | } | |
c6169e49 LP |
379 | |
380 | /* | |
29ce4ed4 | 381 | * Per spec it is allowed to pulse the HPD signal to indicate that the |
c6169e49 | 382 | * EDID information has changed. Some monitors do this when they wakeup |
29ce4ed4 | 383 | * from standby or are enabled. When the HPD goes low the adv7511 is |
c6169e49 | 384 | * reset and the outputs are disabled which might cause the monitor to |
29ce4ed4 | 385 | * go to standby again. To avoid this we ignore the HPD pin for the |
c6169e49 LP |
386 | * first few seconds after enabling the output. |
387 | */ | |
388 | regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2, | |
29ce4ed4 WS |
389 | ADV7511_REG_POWER2_HPD_SRC_MASK, |
390 | ADV7511_REG_POWER2_HPD_SRC_NONE); | |
c6169e49 LP |
391 | |
392 | /* | |
393 | * Most of the registers are reset during power down or when HPD is low. | |
394 | */ | |
395 | regcache_sync(adv7511->regmap); | |
396 | ||
397 | adv7511->powered = true; | |
398 | } | |
399 | ||
400 | static void adv7511_power_off(struct adv7511 *adv7511) | |
401 | { | |
402 | /* TODO: setup additional power down modes */ | |
403 | regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, | |
404 | ADV7511_POWER_POWER_DOWN, | |
405 | ADV7511_POWER_POWER_DOWN); | |
406 | regcache_mark_dirty(adv7511->regmap); | |
407 | ||
408 | adv7511->powered = false; | |
409 | } | |
410 | ||
9c8af882 LPC |
411 | /* ----------------------------------------------------------------------------- |
412 | * Interrupt and hotplug detection | |
413 | */ | |
414 | ||
415 | static bool adv7511_hpd(struct adv7511 *adv7511) | |
416 | { | |
417 | unsigned int irq0; | |
418 | int ret; | |
419 | ||
420 | ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0); | |
421 | if (ret < 0) | |
422 | return false; | |
423 | ||
29ce4ed4 | 424 | if (irq0 & ADV7511_INT0_HPD) { |
9c8af882 | 425 | regmap_write(adv7511->regmap, ADV7511_REG_INT(0), |
29ce4ed4 | 426 | ADV7511_INT0_HPD); |
9c8af882 LPC |
427 | return true; |
428 | } | |
429 | ||
430 | return false; | |
431 | } | |
432 | ||
a5241289 | 433 | static int adv7511_irq_process(struct adv7511 *adv7511) |
9c8af882 LPC |
434 | { |
435 | unsigned int irq0, irq1; | |
9c8af882 LPC |
436 | int ret; |
437 | ||
438 | ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0); | |
439 | if (ret < 0) | |
a5241289 LP |
440 | return ret; |
441 | ||
9c8af882 LPC |
442 | ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1); |
443 | if (ret < 0) | |
a5241289 LP |
444 | return ret; |
445 | ||
446 | regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0); | |
447 | regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1); | |
9c8af882 | 448 | |
29ce4ed4 | 449 | if (irq0 & ADV7511_INT0_HPD && adv7511->encoder) |
a5241289 LP |
450 | drm_helper_hpd_irq_event(adv7511->encoder->dev); |
451 | ||
452 | if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) { | |
453 | adv7511->edid_read = true; | |
454 | ||
455 | if (adv7511->i2c_main->irq) | |
456 | wake_up_all(&adv7511->wq); | |
457 | } | |
458 | ||
459 | return 0; | |
460 | } | |
461 | ||
462 | static irqreturn_t adv7511_irq_handler(int irq, void *devid) | |
463 | { | |
464 | struct adv7511 *adv7511 = devid; | |
465 | int ret; | |
9c8af882 | 466 | |
a5241289 LP |
467 | ret = adv7511_irq_process(adv7511); |
468 | return ret < 0 ? IRQ_NONE : IRQ_HANDLED; | |
9c8af882 LPC |
469 | } |
470 | ||
a5241289 LP |
471 | /* ----------------------------------------------------------------------------- |
472 | * EDID retrieval | |
473 | */ | |
474 | ||
475 | static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout) | |
9c8af882 | 476 | { |
9c8af882 LPC |
477 | int ret; |
478 | ||
479 | if (adv7511->i2c_main->irq) { | |
480 | ret = wait_event_interruptible_timeout(adv7511->wq, | |
a5241289 | 481 | adv7511->edid_read, msecs_to_jiffies(timeout)); |
9c8af882 | 482 | } else { |
a5241289 LP |
483 | for (; timeout > 0; timeout -= 25) { |
484 | ret = adv7511_irq_process(adv7511); | |
485 | if (ret < 0) | |
486 | break; | |
487 | ||
488 | if (adv7511->edid_read) | |
9c8af882 | 489 | break; |
a5241289 | 490 | |
9c8af882 | 491 | msleep(25); |
a5241289 | 492 | } |
9c8af882 LPC |
493 | } |
494 | ||
a5241289 | 495 | return adv7511->edid_read ? 0 : -EIO; |
9c8af882 LPC |
496 | } |
497 | ||
9c8af882 LPC |
498 | static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block, |
499 | size_t len) | |
500 | { | |
501 | struct adv7511 *adv7511 = data; | |
502 | struct i2c_msg xfer[2]; | |
503 | uint8_t offset; | |
504 | unsigned int i; | |
505 | int ret; | |
506 | ||
507 | if (len > 128) | |
508 | return -EINVAL; | |
509 | ||
510 | if (adv7511->current_edid_segment != block / 2) { | |
511 | unsigned int status; | |
512 | ||
513 | ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS, | |
514 | &status); | |
515 | if (ret < 0) | |
516 | return ret; | |
517 | ||
518 | if (status != 2) { | |
a5241289 | 519 | adv7511->edid_read = false; |
9c8af882 LPC |
520 | regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT, |
521 | block); | |
a5241289 LP |
522 | ret = adv7511_wait_for_edid(adv7511, 200); |
523 | if (ret < 0) | |
524 | return ret; | |
9c8af882 LPC |
525 | } |
526 | ||
9c8af882 LPC |
527 | /* Break this apart, hopefully more I2C controllers will |
528 | * support 64 byte transfers than 256 byte transfers | |
529 | */ | |
530 | ||
531 | xfer[0].addr = adv7511->i2c_edid->addr; | |
532 | xfer[0].flags = 0; | |
533 | xfer[0].len = 1; | |
534 | xfer[0].buf = &offset; | |
535 | xfer[1].addr = adv7511->i2c_edid->addr; | |
536 | xfer[1].flags = I2C_M_RD; | |
537 | xfer[1].len = 64; | |
538 | xfer[1].buf = adv7511->edid_buf; | |
539 | ||
540 | offset = 0; | |
541 | ||
542 | for (i = 0; i < 4; ++i) { | |
543 | ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer, | |
544 | ARRAY_SIZE(xfer)); | |
545 | if (ret < 0) | |
546 | return ret; | |
547 | else if (ret != 2) | |
548 | return -EIO; | |
549 | ||
550 | xfer[1].buf += 64; | |
551 | offset += 64; | |
552 | } | |
553 | ||
554 | adv7511->current_edid_segment = block / 2; | |
555 | } | |
556 | ||
557 | if (block % 2 == 0) | |
558 | memcpy(buf, adv7511->edid_buf, len); | |
559 | else | |
560 | memcpy(buf, adv7511->edid_buf + 128, len); | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
565 | /* ----------------------------------------------------------------------------- | |
566 | * Encoder operations | |
567 | */ | |
568 | ||
569 | static int adv7511_get_modes(struct drm_encoder *encoder, | |
570 | struct drm_connector *connector) | |
571 | { | |
572 | struct adv7511 *adv7511 = encoder_to_adv7511(encoder); | |
573 | struct edid *edid; | |
574 | unsigned int count; | |
575 | ||
576 | /* Reading the EDID only works if the device is powered */ | |
c6169e49 | 577 | if (!adv7511->powered) { |
9c8af882 LPC |
578 | regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, |
579 | ADV7511_POWER_POWER_DOWN, 0); | |
d0be8584 WS |
580 | if (adv7511->i2c_main->irq) { |
581 | regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0), | |
582 | ADV7511_INT0_EDID_READY); | |
583 | regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1), | |
584 | ADV7511_INT1_DDC_ERROR); | |
585 | } | |
9c8af882 LPC |
586 | adv7511->current_edid_segment = -1; |
587 | } | |
588 | ||
589 | edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511); | |
590 | ||
c6169e49 | 591 | if (!adv7511->powered) |
9c8af882 LPC |
592 | regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, |
593 | ADV7511_POWER_POWER_DOWN, | |
594 | ADV7511_POWER_POWER_DOWN); | |
595 | ||
596 | kfree(adv7511->edid); | |
597 | adv7511->edid = edid; | |
598 | if (!edid) | |
599 | return 0; | |
600 | ||
601 | drm_mode_connector_update_edid_property(connector, edid); | |
602 | count = drm_add_edid_modes(connector, edid); | |
603 | ||
604 | adv7511_set_config_csc(adv7511, connector, adv7511->rgb); | |
605 | ||
606 | return count; | |
607 | } | |
608 | ||
609 | static void adv7511_encoder_dpms(struct drm_encoder *encoder, int mode) | |
610 | { | |
611 | struct adv7511 *adv7511 = encoder_to_adv7511(encoder); | |
612 | ||
c6169e49 LP |
613 | if (mode == DRM_MODE_DPMS_ON) |
614 | adv7511_power_on(adv7511); | |
615 | else | |
616 | adv7511_power_off(adv7511); | |
9c8af882 LPC |
617 | } |
618 | ||
619 | static enum drm_connector_status | |
620 | adv7511_encoder_detect(struct drm_encoder *encoder, | |
621 | struct drm_connector *connector) | |
622 | { | |
623 | struct adv7511 *adv7511 = encoder_to_adv7511(encoder); | |
624 | enum drm_connector_status status; | |
625 | unsigned int val; | |
626 | bool hpd; | |
627 | int ret; | |
628 | ||
629 | ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val); | |
630 | if (ret < 0) | |
631 | return connector_status_disconnected; | |
632 | ||
633 | if (val & ADV7511_STATUS_HPD) | |
634 | status = connector_status_connected; | |
635 | else | |
636 | status = connector_status_disconnected; | |
637 | ||
638 | hpd = adv7511_hpd(adv7511); | |
639 | ||
640 | /* The chip resets itself when the cable is disconnected, so in case | |
641 | * there is a pending HPD interrupt and the cable is connected there was | |
642 | * at least one transition from disconnected to connected and the chip | |
643 | * has to be reinitialized. */ | |
c6169e49 | 644 | if (status == connector_status_connected && hpd && adv7511->powered) { |
9c8af882 | 645 | regcache_mark_dirty(adv7511->regmap); |
c6169e49 | 646 | adv7511_power_on(adv7511); |
9c8af882 LPC |
647 | adv7511_get_modes(encoder, connector); |
648 | if (adv7511->status == connector_status_connected) | |
649 | status = connector_status_disconnected; | |
650 | } else { | |
29ce4ed4 | 651 | /* Renable HPD sensing */ |
9c8af882 | 652 | regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2, |
29ce4ed4 WS |
653 | ADV7511_REG_POWER2_HPD_SRC_MASK, |
654 | ADV7511_REG_POWER2_HPD_SRC_BOTH); | |
9c8af882 LPC |
655 | } |
656 | ||
657 | adv7511->status = status; | |
658 | return status; | |
659 | } | |
660 | ||
661 | static int adv7511_encoder_mode_valid(struct drm_encoder *encoder, | |
662 | struct drm_display_mode *mode) | |
663 | { | |
664 | if (mode->clock > 165000) | |
665 | return MODE_CLOCK_HIGH; | |
666 | ||
9c8af882 LPC |
667 | return MODE_OK; |
668 | } | |
669 | ||
670 | static void adv7511_encoder_mode_set(struct drm_encoder *encoder, | |
671 | struct drm_display_mode *mode, | |
672 | struct drm_display_mode *adj_mode) | |
673 | { | |
674 | struct adv7511 *adv7511 = encoder_to_adv7511(encoder); | |
675 | unsigned int low_refresh_rate; | |
676 | unsigned int hsync_polarity = 0; | |
677 | unsigned int vsync_polarity = 0; | |
678 | ||
679 | if (adv7511->embedded_sync) { | |
680 | unsigned int hsync_offset, hsync_len; | |
681 | unsigned int vsync_offset, vsync_len; | |
682 | ||
683 | hsync_offset = adj_mode->crtc_hsync_start - | |
684 | adj_mode->crtc_hdisplay; | |
685 | vsync_offset = adj_mode->crtc_vsync_start - | |
686 | adj_mode->crtc_vdisplay; | |
687 | hsync_len = adj_mode->crtc_hsync_end - | |
688 | adj_mode->crtc_hsync_start; | |
689 | vsync_len = adj_mode->crtc_vsync_end - | |
690 | adj_mode->crtc_vsync_start; | |
691 | ||
692 | /* The hardware vsync generator has a off-by-one bug */ | |
693 | vsync_offset += 1; | |
694 | ||
695 | regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB, | |
696 | ((hsync_offset >> 10) & 0x7) << 5); | |
697 | regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0), | |
698 | (hsync_offset >> 2) & 0xff); | |
699 | regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1), | |
700 | ((hsync_offset & 0x3) << 6) | | |
701 | ((hsync_len >> 4) & 0x3f)); | |
702 | regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2), | |
703 | ((hsync_len & 0xf) << 4) | | |
704 | ((vsync_offset >> 6) & 0xf)); | |
705 | regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3), | |
706 | ((vsync_offset & 0x3f) << 2) | | |
707 | ((vsync_len >> 8) & 0x3)); | |
708 | regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4), | |
709 | vsync_len & 0xff); | |
710 | ||
711 | hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC); | |
712 | vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC); | |
713 | } else { | |
714 | enum adv7511_sync_polarity mode_hsync_polarity; | |
715 | enum adv7511_sync_polarity mode_vsync_polarity; | |
716 | ||
717 | /** | |
718 | * If the input signal is always low or always high we want to | |
719 | * invert or let it passthrough depending on the polarity of the | |
720 | * current mode. | |
721 | **/ | |
722 | if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC) | |
723 | mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW; | |
724 | else | |
725 | mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH; | |
726 | ||
727 | if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC) | |
728 | mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW; | |
729 | else | |
730 | mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH; | |
731 | ||
732 | if (adv7511->hsync_polarity != mode_hsync_polarity && | |
733 | adv7511->hsync_polarity != | |
734 | ADV7511_SYNC_POLARITY_PASSTHROUGH) | |
735 | hsync_polarity = 1; | |
736 | ||
737 | if (adv7511->vsync_polarity != mode_vsync_polarity && | |
738 | adv7511->vsync_polarity != | |
739 | ADV7511_SYNC_POLARITY_PASSTHROUGH) | |
740 | vsync_polarity = 1; | |
741 | } | |
742 | ||
743 | if (mode->vrefresh <= 24000) | |
744 | low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ; | |
745 | else if (mode->vrefresh <= 25000) | |
746 | low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ; | |
747 | else if (mode->vrefresh <= 30000) | |
748 | low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ; | |
749 | else | |
750 | low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE; | |
751 | ||
752 | regmap_update_bits(adv7511->regmap, 0xfb, | |
753 | 0x6, low_refresh_rate << 1); | |
754 | regmap_update_bits(adv7511->regmap, 0x17, | |
755 | 0x60, (vsync_polarity << 6) | (hsync_polarity << 5)); | |
756 | ||
757 | /* | |
758 | * TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is | |
759 | * supposed to give better results. | |
760 | */ | |
761 | ||
762 | adv7511->f_tmds = mode->clock; | |
763 | } | |
764 | ||
d2267b9f | 765 | static const struct drm_encoder_slave_funcs adv7511_encoder_funcs = { |
9c8af882 LPC |
766 | .dpms = adv7511_encoder_dpms, |
767 | .mode_valid = adv7511_encoder_mode_valid, | |
768 | .mode_set = adv7511_encoder_mode_set, | |
769 | .detect = adv7511_encoder_detect, | |
770 | .get_modes = adv7511_get_modes, | |
771 | }; | |
772 | ||
773 | /* ----------------------------------------------------------------------------- | |
774 | * Probe & remove | |
775 | */ | |
776 | ||
777 | static int adv7511_parse_dt(struct device_node *np, | |
778 | struct adv7511_link_config *config) | |
779 | { | |
780 | const char *str; | |
781 | int ret; | |
782 | ||
783 | memset(config, 0, sizeof(*config)); | |
784 | ||
785 | of_property_read_u32(np, "adi,input-depth", &config->input_color_depth); | |
786 | if (config->input_color_depth != 8 && config->input_color_depth != 10 && | |
787 | config->input_color_depth != 12) | |
788 | return -EINVAL; | |
789 | ||
790 | ret = of_property_read_string(np, "adi,input-colorspace", &str); | |
791 | if (ret < 0) | |
792 | return ret; | |
793 | ||
794 | if (!strcmp(str, "rgb")) | |
795 | config->input_colorspace = HDMI_COLORSPACE_RGB; | |
796 | else if (!strcmp(str, "yuv422")) | |
797 | config->input_colorspace = HDMI_COLORSPACE_YUV422; | |
798 | else if (!strcmp(str, "yuv444")) | |
799 | config->input_colorspace = HDMI_COLORSPACE_YUV444; | |
800 | else | |
801 | return -EINVAL; | |
802 | ||
803 | ret = of_property_read_string(np, "adi,input-clock", &str); | |
804 | if (ret < 0) | |
805 | return ret; | |
806 | ||
807 | if (!strcmp(str, "1x")) | |
808 | config->input_clock = ADV7511_INPUT_CLOCK_1X; | |
809 | else if (!strcmp(str, "2x")) | |
810 | config->input_clock = ADV7511_INPUT_CLOCK_2X; | |
811 | else if (!strcmp(str, "ddr")) | |
812 | config->input_clock = ADV7511_INPUT_CLOCK_DDR; | |
813 | else | |
814 | return -EINVAL; | |
815 | ||
816 | if (config->input_colorspace == HDMI_COLORSPACE_YUV422 || | |
817 | config->input_clock != ADV7511_INPUT_CLOCK_1X) { | |
818 | ret = of_property_read_u32(np, "adi,input-style", | |
819 | &config->input_style); | |
820 | if (ret) | |
821 | return ret; | |
822 | ||
823 | if (config->input_style < 1 || config->input_style > 3) | |
824 | return -EINVAL; | |
825 | ||
826 | ret = of_property_read_string(np, "adi,input-justification", | |
827 | &str); | |
828 | if (ret < 0) | |
829 | return ret; | |
830 | ||
831 | if (!strcmp(str, "left")) | |
832 | config->input_justification = | |
833 | ADV7511_INPUT_JUSTIFICATION_LEFT; | |
834 | else if (!strcmp(str, "evenly")) | |
835 | config->input_justification = | |
836 | ADV7511_INPUT_JUSTIFICATION_EVENLY; | |
837 | else if (!strcmp(str, "right")) | |
838 | config->input_justification = | |
839 | ADV7511_INPUT_JUSTIFICATION_RIGHT; | |
840 | else | |
841 | return -EINVAL; | |
842 | ||
843 | } else { | |
844 | config->input_style = 1; | |
845 | config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT; | |
846 | } | |
847 | ||
848 | of_property_read_u32(np, "adi,clock-delay", &config->clock_delay); | |
849 | if (config->clock_delay < -1200 || config->clock_delay > 1600) | |
850 | return -EINVAL; | |
851 | ||
852 | config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync"); | |
853 | ||
854 | /* Hardcode the sync pulse configurations for now. */ | |
855 | config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE; | |
856 | config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH; | |
857 | config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH; | |
858 | ||
859 | return 0; | |
860 | } | |
861 | ||
862 | static const int edid_i2c_addr = 0x7e; | |
863 | static const int packet_i2c_addr = 0x70; | |
864 | static const int cec_i2c_addr = 0x78; | |
865 | ||
866 | static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id) | |
867 | { | |
868 | struct adv7511_link_config link_config; | |
869 | struct adv7511 *adv7511; | |
870 | struct device *dev = &i2c->dev; | |
871 | unsigned int val; | |
872 | int ret; | |
873 | ||
874 | if (!dev->of_node) | |
875 | return -EINVAL; | |
876 | ||
877 | adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL); | |
878 | if (!adv7511) | |
879 | return -ENOMEM; | |
880 | ||
c6169e49 | 881 | adv7511->powered = false; |
9c8af882 LPC |
882 | adv7511->status = connector_status_disconnected; |
883 | ||
884 | ret = adv7511_parse_dt(dev->of_node, &link_config); | |
885 | if (ret) | |
886 | return ret; | |
887 | ||
888 | /* | |
889 | * The power down GPIO is optional. If present, toggle it from active to | |
890 | * inactive to wake up the encoder. | |
891 | */ | |
892 | adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH); | |
893 | if (IS_ERR(adv7511->gpio_pd)) | |
894 | return PTR_ERR(adv7511->gpio_pd); | |
895 | ||
896 | if (adv7511->gpio_pd) { | |
897 | mdelay(5); | |
898 | gpiod_set_value_cansleep(adv7511->gpio_pd, 0); | |
899 | } | |
900 | ||
901 | adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config); | |
902 | if (IS_ERR(adv7511->regmap)) | |
903 | return PTR_ERR(adv7511->regmap); | |
904 | ||
905 | ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val); | |
906 | if (ret) | |
907 | return ret; | |
908 | dev_dbg(dev, "Rev. %d\n", val); | |
909 | ||
910 | ret = regmap_register_patch(adv7511->regmap, adv7511_fixed_registers, | |
911 | ARRAY_SIZE(adv7511_fixed_registers)); | |
912 | if (ret) | |
913 | return ret; | |
914 | ||
915 | regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, edid_i2c_addr); | |
916 | regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR, | |
917 | packet_i2c_addr); | |
918 | regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR, cec_i2c_addr); | |
919 | adv7511_packet_disable(adv7511, 0xffff); | |
920 | ||
921 | adv7511->i2c_main = i2c; | |
922 | adv7511->i2c_edid = i2c_new_dummy(i2c->adapter, edid_i2c_addr >> 1); | |
923 | if (!adv7511->i2c_edid) | |
924 | return -ENOMEM; | |
925 | ||
926 | if (i2c->irq) { | |
927 | init_waitqueue_head(&adv7511->wq); | |
928 | ||
929 | ret = devm_request_threaded_irq(dev, i2c->irq, NULL, | |
930 | adv7511_irq_handler, | |
931 | IRQF_ONESHOT, dev_name(dev), | |
932 | adv7511); | |
933 | if (ret) | |
934 | goto err_i2c_unregister_device; | |
935 | } | |
936 | ||
937 | /* CEC is unused for now */ | |
938 | regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL, | |
939 | ADV7511_CEC_CTRL_POWER_DOWN); | |
940 | ||
c6169e49 | 941 | adv7511_power_off(adv7511); |
9c8af882 LPC |
942 | |
943 | i2c_set_clientdata(i2c, adv7511); | |
944 | ||
945 | adv7511_set_link_config(adv7511, &link_config); | |
946 | ||
947 | return 0; | |
948 | ||
949 | err_i2c_unregister_device: | |
950 | i2c_unregister_device(adv7511->i2c_edid); | |
951 | ||
952 | return ret; | |
953 | } | |
954 | ||
955 | static int adv7511_remove(struct i2c_client *i2c) | |
956 | { | |
957 | struct adv7511 *adv7511 = i2c_get_clientdata(i2c); | |
958 | ||
959 | i2c_unregister_device(adv7511->i2c_edid); | |
960 | ||
961 | kfree(adv7511->edid); | |
962 | ||
963 | return 0; | |
964 | } | |
965 | ||
966 | static int adv7511_encoder_init(struct i2c_client *i2c, struct drm_device *dev, | |
967 | struct drm_encoder_slave *encoder) | |
968 | { | |
969 | ||
970 | struct adv7511 *adv7511 = i2c_get_clientdata(i2c); | |
971 | ||
972 | encoder->slave_priv = adv7511; | |
973 | encoder->slave_funcs = &adv7511_encoder_funcs; | |
974 | ||
975 | adv7511->encoder = &encoder->base; | |
976 | ||
977 | return 0; | |
978 | } | |
979 | ||
980 | static const struct i2c_device_id adv7511_i2c_ids[] = { | |
981 | { "adv7511", 0 }, | |
982 | { "adv7511w", 0 }, | |
983 | { "adv7513", 0 }, | |
984 | { } | |
985 | }; | |
986 | MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids); | |
987 | ||
988 | static const struct of_device_id adv7511_of_ids[] = { | |
989 | { .compatible = "adi,adv7511", }, | |
990 | { .compatible = "adi,adv7511w", }, | |
991 | { .compatible = "adi,adv7513", }, | |
992 | { } | |
993 | }; | |
994 | MODULE_DEVICE_TABLE(of, adv7511_of_ids); | |
995 | ||
996 | static struct drm_i2c_encoder_driver adv7511_driver = { | |
997 | .i2c_driver = { | |
998 | .driver = { | |
999 | .name = "adv7511", | |
1000 | .of_match_table = adv7511_of_ids, | |
1001 | }, | |
1002 | .id_table = adv7511_i2c_ids, | |
1003 | .probe = adv7511_probe, | |
1004 | .remove = adv7511_remove, | |
1005 | }, | |
1006 | ||
1007 | .encoder_init = adv7511_encoder_init, | |
1008 | }; | |
1009 | ||
1010 | static int __init adv7511_init(void) | |
1011 | { | |
1012 | return drm_i2c_encoder_register(THIS_MODULE, &adv7511_driver); | |
1013 | } | |
1014 | module_init(adv7511_init); | |
1015 | ||
1016 | static void __exit adv7511_exit(void) | |
1017 | { | |
1018 | drm_i2c_encoder_unregister(&adv7511_driver); | |
1019 | } | |
1020 | module_exit(adv7511_exit); | |
1021 | ||
1022 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); | |
1023 | MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver"); | |
1024 | MODULE_LICENSE("GPL"); |