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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Analog Devices ADV7511 HDMI transmitter driver
4 *
5 * Copyright 2012 Analog Devices Inc.
6 */
7
8#include <linux/clk.h>
9#include <linux/device.h>
10#include <linux/gpio/consumer.h>
11#include <linux/module.h>
12#include <linux/of.h>
13#include <linux/slab.h>
14
15#include <media/cec.h>
16
17#include <drm/drm_atomic.h>
18#include <drm/drm_atomic_helper.h>
19#include <drm/drm_edid.h>
20#include <drm/drm_print.h>
21#include <drm/drm_probe_helper.h>
22
23#include "adv7511.h"
24
25/* ADI recommended values for proper operation. */
26static const struct reg_sequence adv7511_fixed_registers[] = {
27 { 0x98, 0x03 },
28 { 0x9a, 0xe0 },
29 { 0x9c, 0x30 },
30 { 0x9d, 0x61 },
31 { 0xa2, 0xa4 },
32 { 0xa3, 0xa4 },
33 { 0xe0, 0xd0 },
34 { 0xf9, 0x00 },
35 { 0x55, 0x02 },
36};
37
38/* -----------------------------------------------------------------------------
39 * Register access
40 */
41
42static const uint8_t adv7511_register_defaults[] = {
43 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00 */
44 0x00, 0x00, 0x01, 0x0e, 0xbc, 0x18, 0x01, 0x13,
45 0x25, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10 */
46 0x46, 0x62, 0x04, 0xa8, 0x00, 0x00, 0x1c, 0x84,
47 0x1c, 0xbf, 0x04, 0xa8, 0x1e, 0x70, 0x02, 0x1e, /* 20 */
48 0x00, 0x00, 0x04, 0xa8, 0x08, 0x12, 0x1b, 0xac,
49 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 30 */
50 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xb0,
51 0x00, 0x50, 0x90, 0x7e, 0x79, 0x70, 0x00, 0x00, /* 40 */
52 0x00, 0xa8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
53 0x00, 0x00, 0x02, 0x0d, 0x00, 0x00, 0x00, 0x00, /* 50 */
54 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
55 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 60 */
56 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
57 0x01, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 70 */
58 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
59 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 80 */
60 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
61 0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 90 */
62 0x0b, 0x02, 0x00, 0x18, 0x5a, 0x60, 0x00, 0x00,
63 0x00, 0x00, 0x80, 0x80, 0x08, 0x04, 0x00, 0x00, /* a0 */
64 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x14,
65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b0 */
66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
67 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c0 */
68 0x00, 0x03, 0x00, 0x00, 0x02, 0x00, 0x01, 0x04,
69 0x30, 0xff, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, /* d0 */
70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01,
71 0x80, 0x75, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, /* e0 */
72 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
73 0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x11, 0x00, /* f0 */
74 0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
75};
76
77static bool adv7511_register_volatile(struct device *dev, unsigned int reg)
78{
79 switch (reg) {
80 case ADV7511_REG_CHIP_REVISION:
81 case ADV7511_REG_SPDIF_FREQ:
82 case ADV7511_REG_CTS_AUTOMATIC1:
83 case ADV7511_REG_CTS_AUTOMATIC2:
84 case ADV7511_REG_VIC_DETECTED:
85 case ADV7511_REG_VIC_SEND:
86 case ADV7511_REG_AUX_VIC_DETECTED:
87 case ADV7511_REG_STATUS:
88 case ADV7511_REG_GC(1):
89 case ADV7511_REG_INT(0):
90 case ADV7511_REG_INT(1):
91 case ADV7511_REG_PLL_STATUS:
92 case ADV7511_REG_AN(0):
93 case ADV7511_REG_AN(1):
94 case ADV7511_REG_AN(2):
95 case ADV7511_REG_AN(3):
96 case ADV7511_REG_AN(4):
97 case ADV7511_REG_AN(5):
98 case ADV7511_REG_AN(6):
99 case ADV7511_REG_AN(7):
100 case ADV7511_REG_HDCP_STATUS:
101 case ADV7511_REG_BCAPS:
102 case ADV7511_REG_BKSV(0):
103 case ADV7511_REG_BKSV(1):
104 case ADV7511_REG_BKSV(2):
105 case ADV7511_REG_BKSV(3):
106 case ADV7511_REG_BKSV(4):
107 case ADV7511_REG_DDC_STATUS:
108 case ADV7511_REG_EDID_READ_CTRL:
109 case ADV7511_REG_BSTATUS(0):
110 case ADV7511_REG_BSTATUS(1):
111 case ADV7511_REG_CHIP_ID_HIGH:
112 case ADV7511_REG_CHIP_ID_LOW:
113 return true;
114 }
115
116 return false;
117}
118
119static const struct regmap_config adv7511_regmap_config = {
120 .reg_bits = 8,
121 .val_bits = 8,
122
123 .max_register = 0xff,
124 .cache_type = REGCACHE_MAPLE,
125 .reg_defaults_raw = adv7511_register_defaults,
126 .num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults),
127
128 .volatile_reg = adv7511_register_volatile,
129};
130
131/* -----------------------------------------------------------------------------
132 * Hardware configuration
133 */
134
135static void adv7511_set_colormap(struct adv7511 *adv7511, bool enable,
136 const uint16_t *coeff,
137 unsigned int scaling_factor)
138{
139 unsigned int i;
140
141 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
142 ADV7511_CSC_UPDATE_MODE, ADV7511_CSC_UPDATE_MODE);
143
144 if (enable) {
145 for (i = 0; i < 12; ++i) {
146 regmap_update_bits(adv7511->regmap,
147 ADV7511_REG_CSC_UPPER(i),
148 0x1f, coeff[i] >> 8);
149 regmap_write(adv7511->regmap,
150 ADV7511_REG_CSC_LOWER(i),
151 coeff[i] & 0xff);
152 }
153 }
154
155 if (enable)
156 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
157 0xe0, 0x80 | (scaling_factor << 5));
158 else
159 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
160 0x80, 0x00);
161
162 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
163 ADV7511_CSC_UPDATE_MODE, 0);
164}
165
166static int adv7511_packet_enable(struct adv7511 *adv7511, unsigned int packet)
167{
168 if (packet & 0xff)
169 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
170 packet, 0xff);
171
172 if (packet & 0xff00) {
173 packet >>= 8;
174 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
175 packet, 0xff);
176 }
177
178 return 0;
179}
180
181static int adv7511_packet_disable(struct adv7511 *adv7511, unsigned int packet)
182{
183 if (packet & 0xff)
184 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
185 packet, 0x00);
186
187 if (packet & 0xff00) {
188 packet >>= 8;
189 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
190 packet, 0x00);
191 }
192
193 return 0;
194}
195
196/* Coefficients for adv7511 color space conversion */
197static const uint16_t adv7511_csc_ycbcr_to_rgb[] = {
198 0x0734, 0x04ad, 0x0000, 0x1c1b,
199 0x1ddc, 0x04ad, 0x1f24, 0x0135,
200 0x0000, 0x04ad, 0x087c, 0x1b77,
201};
202
203static void adv7511_set_config_csc(struct adv7511 *adv7511,
204 struct drm_connector *connector,
205 bool rgb, bool hdmi_mode)
206{
207 struct adv7511_video_config config;
208 bool output_format_422, output_format_ycbcr;
209 unsigned int mode;
210 uint8_t infoframe[17];
211
212 config.hdmi_mode = hdmi_mode;
213
214 hdmi_avi_infoframe_init(&config.avi_infoframe);
215
216 config.avi_infoframe.scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
217
218 if (rgb) {
219 config.csc_enable = false;
220 config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB;
221 } else {
222 config.csc_scaling_factor = ADV7511_CSC_SCALING_4;
223 config.csc_coefficents = adv7511_csc_ycbcr_to_rgb;
224
225 if ((connector->display_info.color_formats &
226 DRM_COLOR_FORMAT_YCBCR422) &&
227 config.hdmi_mode) {
228 config.csc_enable = false;
229 config.avi_infoframe.colorspace =
230 HDMI_COLORSPACE_YUV422;
231 } else {
232 config.csc_enable = true;
233 config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB;
234 }
235 }
236
237 if (config.hdmi_mode) {
238 mode = ADV7511_HDMI_CFG_MODE_HDMI;
239
240 switch (config.avi_infoframe.colorspace) {
241 case HDMI_COLORSPACE_YUV444:
242 output_format_422 = false;
243 output_format_ycbcr = true;
244 break;
245 case HDMI_COLORSPACE_YUV422:
246 output_format_422 = true;
247 output_format_ycbcr = true;
248 break;
249 default:
250 output_format_422 = false;
251 output_format_ycbcr = false;
252 break;
253 }
254 } else {
255 mode = ADV7511_HDMI_CFG_MODE_DVI;
256 output_format_422 = false;
257 output_format_ycbcr = false;
258 }
259
260 adv7511_packet_disable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
261
262 adv7511_set_colormap(adv7511, config.csc_enable,
263 config.csc_coefficents,
264 config.csc_scaling_factor);
265
266 regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x81,
267 (output_format_422 << 7) | output_format_ycbcr);
268
269 regmap_update_bits(adv7511->regmap, ADV7511_REG_HDCP_HDMI_CFG,
270 ADV7511_HDMI_CFG_MODE_MASK, mode);
271
272 hdmi_avi_infoframe_pack(&config.avi_infoframe, infoframe,
273 sizeof(infoframe));
274
275 /* The AVI infoframe id is not configurable */
276 regmap_bulk_write(adv7511->regmap, ADV7511_REG_AVI_INFOFRAME_VERSION,
277 infoframe + 1, sizeof(infoframe) - 1);
278
279 adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
280}
281
282static void adv7511_set_link_config(struct adv7511 *adv7511,
283 const struct adv7511_link_config *config)
284{
285 /*
286 * The input style values documented in the datasheet don't match the
287 * hardware register field values :-(
288 */
289 static const unsigned int input_styles[4] = { 0, 2, 1, 3 };
290
291 unsigned int clock_delay;
292 unsigned int color_depth;
293 unsigned int input_id;
294
295 clock_delay = (config->clock_delay + 1200) / 400;
296 color_depth = config->input_color_depth == 8 ? 3
297 : (config->input_color_depth == 10 ? 1 : 2);
298
299 /* TODO Support input ID 6 */
300 if (config->input_colorspace != HDMI_COLORSPACE_YUV422)
301 input_id = config->input_clock == ADV7511_INPUT_CLOCK_DDR
302 ? 5 : 0;
303 else if (config->input_clock == ADV7511_INPUT_CLOCK_DDR)
304 input_id = config->embedded_sync ? 8 : 7;
305 else if (config->input_clock == ADV7511_INPUT_CLOCK_2X)
306 input_id = config->embedded_sync ? 4 : 3;
307 else
308 input_id = config->embedded_sync ? 2 : 1;
309
310 regmap_update_bits(adv7511->regmap, ADV7511_REG_I2C_FREQ_ID_CFG, 0xf,
311 input_id);
312 regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x7e,
313 (color_depth << 4) |
314 (input_styles[config->input_style] << 2));
315 regmap_write(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG2,
316 config->input_justification << 3);
317 regmap_write(adv7511->regmap, ADV7511_REG_TIMING_GEN_SEQ,
318 config->sync_pulse << 2);
319
320 regmap_write(adv7511->regmap, 0xba, clock_delay << 5);
321
322 adv7511->embedded_sync = config->embedded_sync;
323 adv7511->hsync_polarity = config->hsync_polarity;
324 adv7511->vsync_polarity = config->vsync_polarity;
325 adv7511->rgb = config->input_colorspace == HDMI_COLORSPACE_RGB;
326}
327
328static void __adv7511_power_on(struct adv7511 *adv7511)
329{
330 adv7511->current_edid_segment = -1;
331
332 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
333 ADV7511_POWER_POWER_DOWN, 0);
334 if (adv7511->i2c_main->irq) {
335 /*
336 * Documentation says the INT_ENABLE registers are reset in
337 * POWER_DOWN mode. My 7511w preserved the bits, however.
338 * Still, let's be safe and stick to the documentation.
339 */
340 regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
341 ADV7511_INT0_EDID_READY | ADV7511_INT0_HPD);
342 regmap_update_bits(adv7511->regmap,
343 ADV7511_REG_INT_ENABLE(1),
344 ADV7511_INT1_DDC_ERROR,
345 ADV7511_INT1_DDC_ERROR);
346 }
347
348 /*
349 * Per spec it is allowed to pulse the HPD signal to indicate that the
350 * EDID information has changed. Some monitors do this when they wakeup
351 * from standby or are enabled. When the HPD goes low the adv7511 is
352 * reset and the outputs are disabled which might cause the monitor to
353 * go to standby again. To avoid this we ignore the HPD pin for the
354 * first few seconds after enabling the output. On the other hand
355 * adv7535 require to enable HPD Override bit for proper HPD.
356 */
357 if (adv7511->info->hpd_override_enable)
358 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
359 ADV7535_REG_POWER2_HPD_OVERRIDE,
360 ADV7535_REG_POWER2_HPD_OVERRIDE);
361 else
362 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
363 ADV7511_REG_POWER2_HPD_SRC_MASK,
364 ADV7511_REG_POWER2_HPD_SRC_NONE);
365}
366
367static void adv7511_power_on(struct adv7511 *adv7511)
368{
369 __adv7511_power_on(adv7511);
370
371 /*
372 * Most of the registers are reset during power down or when HPD is low.
373 */
374 regcache_sync(adv7511->regmap);
375
376 if (adv7511->info->has_dsi)
377 adv7533_dsi_power_on(adv7511);
378 adv7511->powered = true;
379}
380
381static void __adv7511_power_off(struct adv7511 *adv7511)
382{
383 /* TODO: setup additional power down modes */
384 if (adv7511->info->hpd_override_enable)
385 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
386 ADV7535_REG_POWER2_HPD_OVERRIDE, 0);
387
388 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
389 ADV7511_POWER_POWER_DOWN,
390 ADV7511_POWER_POWER_DOWN);
391 regmap_update_bits(adv7511->regmap,
392 ADV7511_REG_INT_ENABLE(1),
393 ADV7511_INT1_DDC_ERROR, 0);
394 regcache_mark_dirty(adv7511->regmap);
395}
396
397static void adv7511_power_off(struct adv7511 *adv7511)
398{
399 __adv7511_power_off(adv7511);
400 if (adv7511->info->has_dsi)
401 adv7533_dsi_power_off(adv7511);
402 adv7511->powered = false;
403}
404
405/* -----------------------------------------------------------------------------
406 * Interrupt and hotplug detection
407 */
408
409static bool adv7511_hpd(struct adv7511 *adv7511)
410{
411 unsigned int irq0;
412 int ret;
413
414 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
415 if (ret < 0)
416 return false;
417
418 if (irq0 & ADV7511_INT0_HPD) {
419 regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
420 ADV7511_INT0_HPD);
421 return true;
422 }
423
424 return false;
425}
426
427static void adv7511_hpd_work(struct work_struct *work)
428{
429 struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
430 enum drm_connector_status status;
431 unsigned int val;
432 int ret;
433
434 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
435 if (ret < 0)
436 status = connector_status_disconnected;
437 else if (val & ADV7511_STATUS_HPD)
438 status = connector_status_connected;
439 else
440 status = connector_status_disconnected;
441
442 /*
443 * The bridge resets its registers on unplug. So when we get a plug
444 * event and we're already supposed to be powered, cycle the bridge to
445 * restore its state.
446 */
447 if (status == connector_status_connected &&
448 adv7511->connector.status == connector_status_disconnected &&
449 adv7511->powered) {
450 regcache_mark_dirty(adv7511->regmap);
451 adv7511_power_on(adv7511);
452 }
453
454 if (adv7511->connector.status != status) {
455 adv7511->connector.status = status;
456
457 if (adv7511->connector.dev) {
458 if (status == connector_status_disconnected)
459 cec_phys_addr_invalidate(adv7511->cec_adap);
460 drm_kms_helper_hotplug_event(adv7511->connector.dev);
461 } else {
462 drm_bridge_hpd_notify(&adv7511->bridge, status);
463 }
464 }
465}
466
467static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
468{
469 unsigned int irq0, irq1;
470 int ret;
471
472 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
473 if (ret < 0)
474 return ret;
475
476 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1);
477 if (ret < 0)
478 return ret;
479
480 regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0);
481 regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1);
482
483 if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder)
484 schedule_work(&adv7511->hpd_work);
485
486 if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) {
487 adv7511->edid_read = true;
488
489 if (adv7511->i2c_main->irq)
490 wake_up_all(&adv7511->wq);
491 }
492
493#ifdef CONFIG_DRM_I2C_ADV7511_CEC
494 adv7511_cec_irq_process(adv7511, irq1);
495#endif
496
497 return 0;
498}
499
500static irqreturn_t adv7511_irq_handler(int irq, void *devid)
501{
502 struct adv7511 *adv7511 = devid;
503 int ret;
504
505 ret = adv7511_irq_process(adv7511, true);
506 return ret < 0 ? IRQ_NONE : IRQ_HANDLED;
507}
508
509/* -----------------------------------------------------------------------------
510 * EDID retrieval
511 */
512
513static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout)
514{
515 int ret;
516
517 if (adv7511->i2c_main->irq) {
518 ret = wait_event_interruptible_timeout(adv7511->wq,
519 adv7511->edid_read, msecs_to_jiffies(timeout));
520 } else {
521 for (; timeout > 0; timeout -= 25) {
522 ret = adv7511_irq_process(adv7511, false);
523 if (ret < 0)
524 break;
525
526 if (adv7511->edid_read)
527 break;
528
529 msleep(25);
530 }
531 }
532
533 return adv7511->edid_read ? 0 : -EIO;
534}
535
536static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block,
537 size_t len)
538{
539 struct adv7511 *adv7511 = data;
540 struct i2c_msg xfer[2];
541 uint8_t offset;
542 unsigned int i;
543 int ret;
544
545 if (len > 128)
546 return -EINVAL;
547
548 if (adv7511->current_edid_segment != block / 2) {
549 unsigned int status;
550
551 ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS,
552 &status);
553 if (ret < 0)
554 return ret;
555
556 if (status != 2) {
557 adv7511->edid_read = false;
558 regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT,
559 block);
560 ret = adv7511_wait_for_edid(adv7511, 200);
561 if (ret < 0)
562 return ret;
563 }
564
565 /* Break this apart, hopefully more I2C controllers will
566 * support 64 byte transfers than 256 byte transfers
567 */
568
569 xfer[0].addr = adv7511->i2c_edid->addr;
570 xfer[0].flags = 0;
571 xfer[0].len = 1;
572 xfer[0].buf = &offset;
573 xfer[1].addr = adv7511->i2c_edid->addr;
574 xfer[1].flags = I2C_M_RD;
575 xfer[1].len = 64;
576 xfer[1].buf = adv7511->edid_buf;
577
578 offset = 0;
579
580 for (i = 0; i < 4; ++i) {
581 ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer,
582 ARRAY_SIZE(xfer));
583 if (ret < 0)
584 return ret;
585 else if (ret != 2)
586 return -EIO;
587
588 xfer[1].buf += 64;
589 offset += 64;
590 }
591
592 adv7511->current_edid_segment = block / 2;
593 }
594
595 if (block % 2 == 0)
596 memcpy(buf, adv7511->edid_buf, len);
597 else
598 memcpy(buf, adv7511->edid_buf + 128, len);
599
600 return 0;
601}
602
603/* -----------------------------------------------------------------------------
604 * ADV75xx helpers
605 */
606
607static struct edid *adv7511_get_edid(struct adv7511 *adv7511,
608 struct drm_connector *connector)
609{
610 struct edid *edid;
611
612 /* Reading the EDID only works if the device is powered */
613 if (!adv7511->powered) {
614 unsigned int edid_i2c_addr =
615 (adv7511->i2c_edid->addr << 1);
616
617 __adv7511_power_on(adv7511);
618
619 /* Reset the EDID_I2C_ADDR register as it might be cleared */
620 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
621 edid_i2c_addr);
622 }
623
624 edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511);
625
626 if (!adv7511->powered)
627 __adv7511_power_off(adv7511);
628
629 adv7511_set_config_csc(adv7511, connector, adv7511->rgb,
630 drm_detect_hdmi_monitor(edid));
631
632 cec_s_phys_addr_from_edid(adv7511->cec_adap, edid);
633
634 return edid;
635}
636
637static int adv7511_get_modes(struct adv7511 *adv7511,
638 struct drm_connector *connector)
639{
640 struct edid *edid;
641 unsigned int count;
642
643 edid = adv7511_get_edid(adv7511, connector);
644
645 drm_connector_update_edid_property(connector, edid);
646 count = drm_add_edid_modes(connector, edid);
647
648 kfree(edid);
649
650 return count;
651}
652
653static enum drm_connector_status
654adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
655{
656 enum drm_connector_status status;
657 unsigned int val;
658 bool hpd;
659 int ret;
660
661 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
662 if (ret < 0)
663 return connector_status_disconnected;
664
665 if (val & ADV7511_STATUS_HPD)
666 status = connector_status_connected;
667 else
668 status = connector_status_disconnected;
669
670 hpd = adv7511_hpd(adv7511);
671
672 /* The chip resets itself when the cable is disconnected, so in case
673 * there is a pending HPD interrupt and the cable is connected there was
674 * at least one transition from disconnected to connected and the chip
675 * has to be reinitialized. */
676 if (status == connector_status_connected && hpd && adv7511->powered) {
677 regcache_mark_dirty(adv7511->regmap);
678 adv7511_power_on(adv7511);
679 if (connector)
680 adv7511_get_modes(adv7511, connector);
681 if (adv7511->status == connector_status_connected)
682 status = connector_status_disconnected;
683 } else {
684 /* Renable HPD sensing */
685 if (adv7511->info->hpd_override_enable)
686 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
687 ADV7535_REG_POWER2_HPD_OVERRIDE,
688 ADV7535_REG_POWER2_HPD_OVERRIDE);
689 else
690 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
691 ADV7511_REG_POWER2_HPD_SRC_MASK,
692 ADV7511_REG_POWER2_HPD_SRC_BOTH);
693 }
694
695 adv7511->status = status;
696 return status;
697}
698
699static enum drm_mode_status adv7511_mode_valid(struct adv7511 *adv7511,
700 const struct drm_display_mode *mode)
701{
702 if (mode->clock > 165000)
703 return MODE_CLOCK_HIGH;
704
705 return MODE_OK;
706}
707
708static void adv7511_mode_set(struct adv7511 *adv7511,
709 const struct drm_display_mode *mode,
710 const struct drm_display_mode *adj_mode)
711{
712 unsigned int low_refresh_rate;
713 unsigned int hsync_polarity = 0;
714 unsigned int vsync_polarity = 0;
715
716 if (adv7511->embedded_sync) {
717 unsigned int hsync_offset, hsync_len;
718 unsigned int vsync_offset, vsync_len;
719
720 hsync_offset = adj_mode->crtc_hsync_start -
721 adj_mode->crtc_hdisplay;
722 vsync_offset = adj_mode->crtc_vsync_start -
723 adj_mode->crtc_vdisplay;
724 hsync_len = adj_mode->crtc_hsync_end -
725 adj_mode->crtc_hsync_start;
726 vsync_len = adj_mode->crtc_vsync_end -
727 adj_mode->crtc_vsync_start;
728
729 /* The hardware vsync generator has a off-by-one bug */
730 vsync_offset += 1;
731
732 regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB,
733 ((hsync_offset >> 10) & 0x7) << 5);
734 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0),
735 (hsync_offset >> 2) & 0xff);
736 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1),
737 ((hsync_offset & 0x3) << 6) |
738 ((hsync_len >> 4) & 0x3f));
739 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2),
740 ((hsync_len & 0xf) << 4) |
741 ((vsync_offset >> 6) & 0xf));
742 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3),
743 ((vsync_offset & 0x3f) << 2) |
744 ((vsync_len >> 8) & 0x3));
745 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4),
746 vsync_len & 0xff);
747
748 hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC);
749 vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC);
750 } else {
751 enum adv7511_sync_polarity mode_hsync_polarity;
752 enum adv7511_sync_polarity mode_vsync_polarity;
753
754 /**
755 * If the input signal is always low or always high we want to
756 * invert or let it passthrough depending on the polarity of the
757 * current mode.
758 **/
759 if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
760 mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW;
761 else
762 mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
763
764 if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
765 mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW;
766 else
767 mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
768
769 if (adv7511->hsync_polarity != mode_hsync_polarity &&
770 adv7511->hsync_polarity !=
771 ADV7511_SYNC_POLARITY_PASSTHROUGH)
772 hsync_polarity = 1;
773
774 if (adv7511->vsync_polarity != mode_vsync_polarity &&
775 adv7511->vsync_polarity !=
776 ADV7511_SYNC_POLARITY_PASSTHROUGH)
777 vsync_polarity = 1;
778 }
779
780 if (drm_mode_vrefresh(mode) <= 24)
781 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ;
782 else if (drm_mode_vrefresh(mode) <= 25)
783 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ;
784 else if (drm_mode_vrefresh(mode) <= 30)
785 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ;
786 else
787 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
788
789 if (adv7511->info->type == ADV7511)
790 regmap_update_bits(adv7511->regmap, 0xfb,
791 0x6, low_refresh_rate << 1);
792 else
793 regmap_update_bits(adv7511->regmap, 0x4a,
794 0xc, low_refresh_rate << 2);
795
796 regmap_update_bits(adv7511->regmap, 0x17,
797 0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
798
799 drm_mode_copy(&adv7511->curr_mode, adj_mode);
800
801 /*
802 * TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is
803 * supposed to give better results.
804 */
805
806 adv7511->f_tmds = mode->clock;
807}
808
809/* -----------------------------------------------------------------------------
810 * DRM Connector Operations
811 */
812
813static struct adv7511 *connector_to_adv7511(struct drm_connector *connector)
814{
815 return container_of(connector, struct adv7511, connector);
816}
817
818static int adv7511_connector_get_modes(struct drm_connector *connector)
819{
820 struct adv7511 *adv = connector_to_adv7511(connector);
821
822 return adv7511_get_modes(adv, connector);
823}
824
825static enum drm_mode_status
826adv7511_connector_mode_valid(struct drm_connector *connector,
827 struct drm_display_mode *mode)
828{
829 struct adv7511 *adv = connector_to_adv7511(connector);
830
831 return adv7511_mode_valid(adv, mode);
832}
833
834static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = {
835 .get_modes = adv7511_connector_get_modes,
836 .mode_valid = adv7511_connector_mode_valid,
837};
838
839static enum drm_connector_status
840adv7511_connector_detect(struct drm_connector *connector, bool force)
841{
842 struct adv7511 *adv = connector_to_adv7511(connector);
843
844 return adv7511_detect(adv, connector);
845}
846
847static const struct drm_connector_funcs adv7511_connector_funcs = {
848 .fill_modes = drm_helper_probe_single_connector_modes,
849 .detect = adv7511_connector_detect,
850 .destroy = drm_connector_cleanup,
851 .reset = drm_atomic_helper_connector_reset,
852 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
853 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
854};
855
856static int adv7511_connector_init(struct adv7511 *adv)
857{
858 struct drm_bridge *bridge = &adv->bridge;
859 int ret;
860
861 if (!bridge->encoder) {
862 DRM_ERROR("Parent encoder object not found");
863 return -ENODEV;
864 }
865
866 if (adv->i2c_main->irq)
867 adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
868 else
869 adv->connector.polled = DRM_CONNECTOR_POLL_CONNECT |
870 DRM_CONNECTOR_POLL_DISCONNECT;
871
872 ret = drm_connector_init(bridge->dev, &adv->connector,
873 &adv7511_connector_funcs,
874 DRM_MODE_CONNECTOR_HDMIA);
875 if (ret < 0) {
876 DRM_ERROR("Failed to initialize connector with drm\n");
877 return ret;
878 }
879 drm_connector_helper_add(&adv->connector,
880 &adv7511_connector_helper_funcs);
881 drm_connector_attach_encoder(&adv->connector, bridge->encoder);
882
883 return 0;
884}
885
886/* -----------------------------------------------------------------------------
887 * DRM Bridge Operations
888 */
889
890static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge)
891{
892 return container_of(bridge, struct adv7511, bridge);
893}
894
895static void adv7511_bridge_enable(struct drm_bridge *bridge)
896{
897 struct adv7511 *adv = bridge_to_adv7511(bridge);
898
899 adv7511_power_on(adv);
900}
901
902static void adv7511_bridge_disable(struct drm_bridge *bridge)
903{
904 struct adv7511 *adv = bridge_to_adv7511(bridge);
905
906 adv7511_power_off(adv);
907}
908
909static void adv7511_bridge_mode_set(struct drm_bridge *bridge,
910 const struct drm_display_mode *mode,
911 const struct drm_display_mode *adj_mode)
912{
913 struct adv7511 *adv = bridge_to_adv7511(bridge);
914
915 adv7511_mode_set(adv, mode, adj_mode);
916}
917
918static enum drm_mode_status adv7511_bridge_mode_valid(struct drm_bridge *bridge,
919 const struct drm_display_info *info,
920 const struct drm_display_mode *mode)
921{
922 struct adv7511 *adv = bridge_to_adv7511(bridge);
923
924 if (adv->info->has_dsi)
925 return adv7533_mode_valid(adv, mode);
926 else
927 return adv7511_mode_valid(adv, mode);
928}
929
930static int adv7511_bridge_attach(struct drm_bridge *bridge,
931 enum drm_bridge_attach_flags flags)
932{
933 struct adv7511 *adv = bridge_to_adv7511(bridge);
934 int ret = 0;
935
936 if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) {
937 ret = adv7511_connector_init(adv);
938 if (ret < 0)
939 return ret;
940 }
941
942 if (adv->i2c_main->irq)
943 regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0),
944 ADV7511_INT0_HPD);
945
946 return ret;
947}
948
949static enum drm_connector_status adv7511_bridge_detect(struct drm_bridge *bridge)
950{
951 struct adv7511 *adv = bridge_to_adv7511(bridge);
952
953 return adv7511_detect(adv, NULL);
954}
955
956static struct edid *adv7511_bridge_get_edid(struct drm_bridge *bridge,
957 struct drm_connector *connector)
958{
959 struct adv7511 *adv = bridge_to_adv7511(bridge);
960
961 return adv7511_get_edid(adv, connector);
962}
963
964static void adv7511_bridge_hpd_notify(struct drm_bridge *bridge,
965 enum drm_connector_status status)
966{
967 struct adv7511 *adv = bridge_to_adv7511(bridge);
968
969 if (status == connector_status_disconnected)
970 cec_phys_addr_invalidate(adv->cec_adap);
971}
972
973static const struct drm_bridge_funcs adv7511_bridge_funcs = {
974 .enable = adv7511_bridge_enable,
975 .disable = adv7511_bridge_disable,
976 .mode_set = adv7511_bridge_mode_set,
977 .mode_valid = adv7511_bridge_mode_valid,
978 .attach = adv7511_bridge_attach,
979 .detect = adv7511_bridge_detect,
980 .get_edid = adv7511_bridge_get_edid,
981 .hpd_notify = adv7511_bridge_hpd_notify,
982};
983
984/* -----------------------------------------------------------------------------
985 * Probe & remove
986 */
987
988static const char * const adv7511_supply_names[] = {
989 "avdd",
990 "dvdd",
991 "pvdd",
992 "bgvdd",
993 "dvdd-3v",
994};
995
996static const char * const adv7533_supply_names[] = {
997 "avdd",
998 "dvdd",
999 "pvdd",
1000 "a2vdd",
1001 "v3p3",
1002 "v1p2",
1003};
1004
1005static int adv7511_init_regulators(struct adv7511 *adv)
1006{
1007 const char * const *supply_names = adv->info->supply_names;
1008 unsigned int num_supplies = adv->info->num_supplies;
1009 struct device *dev = &adv->i2c_main->dev;
1010 unsigned int i;
1011 int ret;
1012
1013 adv->supplies = devm_kcalloc(dev, num_supplies,
1014 sizeof(*adv->supplies), GFP_KERNEL);
1015 if (!adv->supplies)
1016 return -ENOMEM;
1017
1018 for (i = 0; i < num_supplies; i++)
1019 adv->supplies[i].supply = supply_names[i];
1020
1021 ret = devm_regulator_bulk_get(dev, num_supplies, adv->supplies);
1022 if (ret)
1023 return ret;
1024
1025 return regulator_bulk_enable(num_supplies, adv->supplies);
1026}
1027
1028static void adv7511_uninit_regulators(struct adv7511 *adv)
1029{
1030 regulator_bulk_disable(adv->info->num_supplies, adv->supplies);
1031}
1032
1033static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg)
1034{
1035 struct i2c_client *i2c = to_i2c_client(dev);
1036 struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
1037
1038 reg -= adv7511->info->reg_cec_offset;
1039
1040 switch (reg) {
1041 case ADV7511_REG_CEC_RX1_FRAME_HDR:
1042 case ADV7511_REG_CEC_RX1_FRAME_DATA0 ... ADV7511_REG_CEC_RX1_FRAME_DATA0 + 14:
1043 case ADV7511_REG_CEC_RX1_FRAME_LEN:
1044 case ADV7511_REG_CEC_RX2_FRAME_HDR:
1045 case ADV7511_REG_CEC_RX2_FRAME_DATA0 ... ADV7511_REG_CEC_RX2_FRAME_DATA0 + 14:
1046 case ADV7511_REG_CEC_RX2_FRAME_LEN:
1047 case ADV7511_REG_CEC_RX3_FRAME_HDR:
1048 case ADV7511_REG_CEC_RX3_FRAME_DATA0 ... ADV7511_REG_CEC_RX3_FRAME_DATA0 + 14:
1049 case ADV7511_REG_CEC_RX3_FRAME_LEN:
1050 case ADV7511_REG_CEC_RX_STATUS:
1051 case ADV7511_REG_CEC_RX_BUFFERS:
1052 case ADV7511_REG_CEC_TX_LOW_DRV_CNT:
1053 return true;
1054 }
1055
1056 return false;
1057}
1058
1059static const struct regmap_config adv7511_cec_regmap_config = {
1060 .reg_bits = 8,
1061 .val_bits = 8,
1062
1063 .max_register = 0xff,
1064 .cache_type = REGCACHE_MAPLE,
1065 .volatile_reg = adv7511_cec_register_volatile,
1066};
1067
1068static int adv7511_init_cec_regmap(struct adv7511 *adv)
1069{
1070 int ret;
1071
1072 adv->i2c_cec = i2c_new_ancillary_device(adv->i2c_main, "cec",
1073 ADV7511_CEC_I2C_ADDR_DEFAULT);
1074 if (IS_ERR(adv->i2c_cec))
1075 return PTR_ERR(adv->i2c_cec);
1076
1077 regmap_write(adv->regmap, ADV7511_REG_CEC_I2C_ADDR,
1078 adv->i2c_cec->addr << 1);
1079
1080 i2c_set_clientdata(adv->i2c_cec, adv);
1081
1082 adv->regmap_cec = devm_regmap_init_i2c(adv->i2c_cec,
1083 &adv7511_cec_regmap_config);
1084 if (IS_ERR(adv->regmap_cec)) {
1085 ret = PTR_ERR(adv->regmap_cec);
1086 goto err;
1087 }
1088
1089 if (adv->info->reg_cec_offset == ADV7533_REG_CEC_OFFSET) {
1090 ret = adv7533_patch_cec_registers(adv);
1091 if (ret)
1092 goto err;
1093 }
1094
1095 return 0;
1096err:
1097 i2c_unregister_device(adv->i2c_cec);
1098 return ret;
1099}
1100
1101static int adv7511_parse_dt(struct device_node *np,
1102 struct adv7511_link_config *config)
1103{
1104 const char *str;
1105 int ret;
1106
1107 of_property_read_u32(np, "adi,input-depth", &config->input_color_depth);
1108 if (config->input_color_depth != 8 && config->input_color_depth != 10 &&
1109 config->input_color_depth != 12)
1110 return -EINVAL;
1111
1112 ret = of_property_read_string(np, "adi,input-colorspace", &str);
1113 if (ret < 0)
1114 return ret;
1115
1116 if (!strcmp(str, "rgb"))
1117 config->input_colorspace = HDMI_COLORSPACE_RGB;
1118 else if (!strcmp(str, "yuv422"))
1119 config->input_colorspace = HDMI_COLORSPACE_YUV422;
1120 else if (!strcmp(str, "yuv444"))
1121 config->input_colorspace = HDMI_COLORSPACE_YUV444;
1122 else
1123 return -EINVAL;
1124
1125 ret = of_property_read_string(np, "adi,input-clock", &str);
1126 if (ret < 0)
1127 return ret;
1128
1129 if (!strcmp(str, "1x"))
1130 config->input_clock = ADV7511_INPUT_CLOCK_1X;
1131 else if (!strcmp(str, "2x"))
1132 config->input_clock = ADV7511_INPUT_CLOCK_2X;
1133 else if (!strcmp(str, "ddr"))
1134 config->input_clock = ADV7511_INPUT_CLOCK_DDR;
1135 else
1136 return -EINVAL;
1137
1138 if (config->input_colorspace == HDMI_COLORSPACE_YUV422 ||
1139 config->input_clock != ADV7511_INPUT_CLOCK_1X) {
1140 ret = of_property_read_u32(np, "adi,input-style",
1141 &config->input_style);
1142 if (ret)
1143 return ret;
1144
1145 if (config->input_style < 1 || config->input_style > 3)
1146 return -EINVAL;
1147
1148 ret = of_property_read_string(np, "adi,input-justification",
1149 &str);
1150 if (ret < 0)
1151 return ret;
1152
1153 if (!strcmp(str, "left"))
1154 config->input_justification =
1155 ADV7511_INPUT_JUSTIFICATION_LEFT;
1156 else if (!strcmp(str, "evenly"))
1157 config->input_justification =
1158 ADV7511_INPUT_JUSTIFICATION_EVENLY;
1159 else if (!strcmp(str, "right"))
1160 config->input_justification =
1161 ADV7511_INPUT_JUSTIFICATION_RIGHT;
1162 else
1163 return -EINVAL;
1164
1165 } else {
1166 config->input_style = 1;
1167 config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT;
1168 }
1169
1170 of_property_read_u32(np, "adi,clock-delay", &config->clock_delay);
1171 if (config->clock_delay < -1200 || config->clock_delay > 1600)
1172 return -EINVAL;
1173
1174 config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync");
1175
1176 /* Hardcode the sync pulse configurations for now. */
1177 config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE;
1178 config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
1179 config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
1180
1181 return 0;
1182}
1183
1184static int adv7511_probe(struct i2c_client *i2c)
1185{
1186 struct adv7511_link_config link_config;
1187 struct adv7511 *adv7511;
1188 struct device *dev = &i2c->dev;
1189 unsigned int val;
1190 int ret;
1191
1192 if (!dev->of_node)
1193 return -EINVAL;
1194
1195 adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL);
1196 if (!adv7511)
1197 return -ENOMEM;
1198
1199 adv7511->i2c_main = i2c;
1200 adv7511->powered = false;
1201 adv7511->status = connector_status_disconnected;
1202 adv7511->info = i2c_get_match_data(i2c);
1203
1204 memset(&link_config, 0, sizeof(link_config));
1205
1206 if (adv7511->info->link_config)
1207 ret = adv7511_parse_dt(dev->of_node, &link_config);
1208 else
1209 ret = adv7533_parse_dt(dev->of_node, adv7511);
1210 if (ret)
1211 return ret;
1212
1213 ret = adv7511_init_regulators(adv7511);
1214 if (ret)
1215 return dev_err_probe(dev, ret, "failed to init regulators\n");
1216
1217 /*
1218 * The power down GPIO is optional. If present, toggle it from active to
1219 * inactive to wake up the encoder.
1220 */
1221 adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH);
1222 if (IS_ERR(adv7511->gpio_pd)) {
1223 ret = PTR_ERR(adv7511->gpio_pd);
1224 goto uninit_regulators;
1225 }
1226
1227 if (adv7511->gpio_pd) {
1228 usleep_range(5000, 6000);
1229 gpiod_set_value_cansleep(adv7511->gpio_pd, 0);
1230 }
1231
1232 adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config);
1233 if (IS_ERR(adv7511->regmap)) {
1234 ret = PTR_ERR(adv7511->regmap);
1235 goto uninit_regulators;
1236 }
1237
1238 ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val);
1239 if (ret)
1240 goto uninit_regulators;
1241 dev_dbg(dev, "Rev. %d\n", val);
1242
1243 if (adv7511->info->type == ADV7511)
1244 ret = regmap_register_patch(adv7511->regmap,
1245 adv7511_fixed_registers,
1246 ARRAY_SIZE(adv7511_fixed_registers));
1247 else
1248 ret = adv7533_patch_registers(adv7511);
1249 if (ret)
1250 goto uninit_regulators;
1251
1252 adv7511_packet_disable(adv7511, 0xffff);
1253
1254 adv7511->i2c_edid = i2c_new_ancillary_device(i2c, "edid",
1255 ADV7511_EDID_I2C_ADDR_DEFAULT);
1256 if (IS_ERR(adv7511->i2c_edid)) {
1257 ret = PTR_ERR(adv7511->i2c_edid);
1258 goto uninit_regulators;
1259 }
1260
1261 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
1262 adv7511->i2c_edid->addr << 1);
1263
1264 adv7511->i2c_packet = i2c_new_ancillary_device(i2c, "packet",
1265 ADV7511_PACKET_I2C_ADDR_DEFAULT);
1266 if (IS_ERR(adv7511->i2c_packet)) {
1267 ret = PTR_ERR(adv7511->i2c_packet);
1268 goto err_i2c_unregister_edid;
1269 }
1270
1271 regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR,
1272 adv7511->i2c_packet->addr << 1);
1273
1274 ret = adv7511_init_cec_regmap(adv7511);
1275 if (ret)
1276 goto err_i2c_unregister_packet;
1277
1278 INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
1279
1280 if (i2c->irq) {
1281 init_waitqueue_head(&adv7511->wq);
1282
1283 ret = devm_request_threaded_irq(dev, i2c->irq, NULL,
1284 adv7511_irq_handler,
1285 IRQF_ONESHOT, dev_name(dev),
1286 adv7511);
1287 if (ret)
1288 goto err_unregister_cec;
1289 }
1290
1291 adv7511_power_off(adv7511);
1292
1293 i2c_set_clientdata(i2c, adv7511);
1294
1295 if (adv7511->info->link_config)
1296 adv7511_set_link_config(adv7511, &link_config);
1297
1298 ret = adv7511_cec_init(dev, adv7511);
1299 if (ret)
1300 goto err_unregister_cec;
1301
1302 adv7511->bridge.funcs = &adv7511_bridge_funcs;
1303 adv7511->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID;
1304 if (adv7511->i2c_main->irq)
1305 adv7511->bridge.ops |= DRM_BRIDGE_OP_HPD;
1306
1307 adv7511->bridge.of_node = dev->of_node;
1308 adv7511->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
1309
1310 drm_bridge_add(&adv7511->bridge);
1311
1312 adv7511_audio_init(dev, adv7511);
1313
1314 if (adv7511->info->has_dsi) {
1315 ret = adv7533_attach_dsi(adv7511);
1316 if (ret)
1317 goto err_unregister_audio;
1318 }
1319
1320 return 0;
1321
1322err_unregister_audio:
1323 adv7511_audio_exit(adv7511);
1324 drm_bridge_remove(&adv7511->bridge);
1325err_unregister_cec:
1326 cec_unregister_adapter(adv7511->cec_adap);
1327 i2c_unregister_device(adv7511->i2c_cec);
1328 clk_disable_unprepare(adv7511->cec_clk);
1329err_i2c_unregister_packet:
1330 i2c_unregister_device(adv7511->i2c_packet);
1331err_i2c_unregister_edid:
1332 i2c_unregister_device(adv7511->i2c_edid);
1333uninit_regulators:
1334 adv7511_uninit_regulators(adv7511);
1335
1336 return ret;
1337}
1338
1339static void adv7511_remove(struct i2c_client *i2c)
1340{
1341 struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
1342
1343 adv7511_uninit_regulators(adv7511);
1344
1345 drm_bridge_remove(&adv7511->bridge);
1346
1347 adv7511_audio_exit(adv7511);
1348
1349 cec_unregister_adapter(adv7511->cec_adap);
1350 i2c_unregister_device(adv7511->i2c_cec);
1351 clk_disable_unprepare(adv7511->cec_clk);
1352
1353 i2c_unregister_device(adv7511->i2c_packet);
1354 i2c_unregister_device(adv7511->i2c_edid);
1355}
1356
1357static const struct adv7511_chip_info adv7511_chip_info = {
1358 .type = ADV7511,
1359 .supply_names = adv7511_supply_names,
1360 .num_supplies = ARRAY_SIZE(adv7511_supply_names),
1361 .link_config = true,
1362};
1363
1364static const struct adv7511_chip_info adv7533_chip_info = {
1365 .type = ADV7533,
1366 .max_mode_clock_khz = 80000,
1367 .max_lane_freq_khz = 800000,
1368 .supply_names = adv7533_supply_names,
1369 .num_supplies = ARRAY_SIZE(adv7533_supply_names),
1370 .reg_cec_offset = ADV7533_REG_CEC_OFFSET,
1371 .has_dsi = true,
1372};
1373
1374static const struct adv7511_chip_info adv7535_chip_info = {
1375 .type = ADV7535,
1376 .max_mode_clock_khz = 148500,
1377 .max_lane_freq_khz = 891000,
1378 .supply_names = adv7533_supply_names,
1379 .num_supplies = ARRAY_SIZE(adv7533_supply_names),
1380 .reg_cec_offset = ADV7533_REG_CEC_OFFSET,
1381 .has_dsi = true,
1382 .hpd_override_enable = true,
1383};
1384
1385static const struct i2c_device_id adv7511_i2c_ids[] = {
1386 { "adv7511", (kernel_ulong_t)&adv7511_chip_info },
1387 { "adv7511w", (kernel_ulong_t)&adv7511_chip_info },
1388 { "adv7513", (kernel_ulong_t)&adv7511_chip_info },
1389 { "adv7533", (kernel_ulong_t)&adv7533_chip_info },
1390 { "adv7535", (kernel_ulong_t)&adv7535_chip_info },
1391 { }
1392};
1393MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
1394
1395static const struct of_device_id adv7511_of_ids[] = {
1396 { .compatible = "adi,adv7511", .data = &adv7511_chip_info },
1397 { .compatible = "adi,adv7511w", .data = &adv7511_chip_info },
1398 { .compatible = "adi,adv7513", .data = &adv7511_chip_info },
1399 { .compatible = "adi,adv7533", .data = &adv7533_chip_info },
1400 { .compatible = "adi,adv7535", .data = &adv7535_chip_info },
1401 { }
1402};
1403MODULE_DEVICE_TABLE(of, adv7511_of_ids);
1404
1405static struct mipi_dsi_driver adv7533_dsi_driver = {
1406 .driver.name = "adv7533",
1407};
1408
1409static struct i2c_driver adv7511_driver = {
1410 .driver = {
1411 .name = "adv7511",
1412 .of_match_table = adv7511_of_ids,
1413 },
1414 .id_table = adv7511_i2c_ids,
1415 .probe = adv7511_probe,
1416 .remove = adv7511_remove,
1417};
1418
1419static int __init adv7511_init(void)
1420{
1421 int ret;
1422
1423 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) {
1424 ret = mipi_dsi_driver_register(&adv7533_dsi_driver);
1425 if (ret)
1426 return ret;
1427 }
1428
1429 ret = i2c_add_driver(&adv7511_driver);
1430 if (ret) {
1431 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1432 mipi_dsi_driver_unregister(&adv7533_dsi_driver);
1433 }
1434
1435 return ret;
1436}
1437module_init(adv7511_init);
1438
1439static void __exit adv7511_exit(void)
1440{
1441 i2c_del_driver(&adv7511_driver);
1442
1443 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1444 mipi_dsi_driver_unregister(&adv7533_dsi_driver);
1445}
1446module_exit(adv7511_exit);
1447
1448MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
1449MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver");
1450MODULE_LICENSE("GPL");