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8
9#include <linux/device.h>
10#include <linux/gpio/consumer.h>
11#include <linux/module.h>
12#include <linux/of_device.h>
13#include <linux/slab.h>
14#include <linux/clk.h>
15
16#include <drm/drmP.h>
17#include <drm/drm_atomic.h>
18#include <drm/drm_atomic_helper.h>
19#include <drm/drm_edid.h>
20
21#include <media/cec.h>
22
23#include "adv7511.h"
24
25
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
40
41
42static const uint8_t adv7511_register_defaults[] = {
43 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
44 0x00, 0x00, 0x01, 0x0e, 0xbc, 0x18, 0x01, 0x13,
45 0x25, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
46 0x46, 0x62, 0x04, 0xa8, 0x00, 0x00, 0x1c, 0x84,
47 0x1c, 0xbf, 0x04, 0xa8, 0x1e, 0x70, 0x02, 0x1e,
48 0x00, 0x00, 0x04, 0xa8, 0x08, 0x12, 0x1b, 0xac,
49 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
50 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xb0,
51 0x00, 0x50, 0x90, 0x7e, 0x79, 0x70, 0x00, 0x00,
52 0x00, 0xa8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
53 0x00, 0x00, 0x02, 0x0d, 0x00, 0x00, 0x00, 0x00,
54 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
55 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
56 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
57 0x01, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
58 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
59 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
60 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
61 0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00,
62 0x0b, 0x02, 0x00, 0x18, 0x5a, 0x60, 0x00, 0x00,
63 0x00, 0x00, 0x80, 0x80, 0x08, 0x04, 0x00, 0x00,
64 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x14,
65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
67 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
68 0x00, 0x03, 0x00, 0x00, 0x02, 0x00, 0x01, 0x04,
69 0x30, 0xff, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01,
71 0x80, 0x75, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00,
72 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
73 0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x11, 0x00,
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_RBTREE,
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
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
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_YCRCB422) &&
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
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
287
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
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
337
338
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
350
351
352
353
354
355
356 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
357 ADV7511_REG_POWER2_HPD_SRC_MASK,
358 ADV7511_REG_POWER2_HPD_SRC_NONE);
359}
360
361static void adv7511_power_on(struct adv7511 *adv7511)
362{
363 __adv7511_power_on(adv7511);
364
365
366
367
368 regcache_sync(adv7511->regmap);
369
370 if (adv7511->type == ADV7533)
371 adv7533_dsi_power_on(adv7511);
372 adv7511->powered = true;
373}
374
375static void __adv7511_power_off(struct adv7511 *adv7511)
376{
377
378 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
379 ADV7511_POWER_POWER_DOWN,
380 ADV7511_POWER_POWER_DOWN);
381 regmap_update_bits(adv7511->regmap,
382 ADV7511_REG_INT_ENABLE(1),
383 ADV7511_INT1_DDC_ERROR, 0);
384 regcache_mark_dirty(adv7511->regmap);
385}
386
387static void adv7511_power_off(struct adv7511 *adv7511)
388{
389 __adv7511_power_off(adv7511);
390 if (adv7511->type == ADV7533)
391 adv7533_dsi_power_off(adv7511);
392 adv7511->powered = false;
393}
394
395
396
397
398
399static bool adv7511_hpd(struct adv7511 *adv7511)
400{
401 unsigned int irq0;
402 int ret;
403
404 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
405 if (ret < 0)
406 return false;
407
408 if (irq0 & ADV7511_INT0_HPD) {
409 regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
410 ADV7511_INT0_HPD);
411 return true;
412 }
413
414 return false;
415}
416
417static void adv7511_hpd_work(struct work_struct *work)
418{
419 struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
420 enum drm_connector_status status;
421 unsigned int val;
422 int ret;
423
424 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
425 if (ret < 0)
426 status = connector_status_disconnected;
427 else if (val & ADV7511_STATUS_HPD)
428 status = connector_status_connected;
429 else
430 status = connector_status_disconnected;
431
432
433
434
435
436
437 if (status == connector_status_connected &&
438 adv7511->connector.status == connector_status_disconnected &&
439 adv7511->powered) {
440 regcache_mark_dirty(adv7511->regmap);
441 adv7511_power_on(adv7511);
442 }
443
444 if (adv7511->connector.status != status) {
445 adv7511->connector.status = status;
446 if (status == connector_status_disconnected)
447 cec_phys_addr_invalidate(adv7511->cec_adap);
448 drm_kms_helper_hotplug_event(adv7511->connector.dev);
449 }
450}
451
452static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
453{
454 unsigned int irq0, irq1;
455 int ret;
456
457 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
458 if (ret < 0)
459 return ret;
460
461 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1);
462 if (ret < 0)
463 return ret;
464
465 regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0);
466 regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1);
467
468 if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder)
469 schedule_work(&adv7511->hpd_work);
470
471 if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) {
472 adv7511->edid_read = true;
473
474 if (adv7511->i2c_main->irq)
475 wake_up_all(&adv7511->wq);
476 }
477
478#ifdef CONFIG_DRM_I2C_ADV7511_CEC
479 adv7511_cec_irq_process(adv7511, irq1);
480#endif
481
482 return 0;
483}
484
485static irqreturn_t adv7511_irq_handler(int irq, void *devid)
486{
487 struct adv7511 *adv7511 = devid;
488 int ret;
489
490 ret = adv7511_irq_process(adv7511, true);
491 return ret < 0 ? IRQ_NONE : IRQ_HANDLED;
492}
493
494
495
496
497
498static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout)
499{
500 int ret;
501
502 if (adv7511->i2c_main->irq) {
503 ret = wait_event_interruptible_timeout(adv7511->wq,
504 adv7511->edid_read, msecs_to_jiffies(timeout));
505 } else {
506 for (; timeout > 0; timeout -= 25) {
507 ret = adv7511_irq_process(adv7511, false);
508 if (ret < 0)
509 break;
510
511 if (adv7511->edid_read)
512 break;
513
514 msleep(25);
515 }
516 }
517
518 return adv7511->edid_read ? 0 : -EIO;
519}
520
521static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block,
522 size_t len)
523{
524 struct adv7511 *adv7511 = data;
525 struct i2c_msg xfer[2];
526 uint8_t offset;
527 unsigned int i;
528 int ret;
529
530 if (len > 128)
531 return -EINVAL;
532
533 if (adv7511->current_edid_segment != block / 2) {
534 unsigned int status;
535
536 ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS,
537 &status);
538 if (ret < 0)
539 return ret;
540
541 if (status != 2) {
542 adv7511->edid_read = false;
543 regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT,
544 block);
545 ret = adv7511_wait_for_edid(adv7511, 200);
546 if (ret < 0)
547 return ret;
548 }
549
550
551
552
553
554 xfer[0].addr = adv7511->i2c_edid->addr;
555 xfer[0].flags = 0;
556 xfer[0].len = 1;
557 xfer[0].buf = &offset;
558 xfer[1].addr = adv7511->i2c_edid->addr;
559 xfer[1].flags = I2C_M_RD;
560 xfer[1].len = 64;
561 xfer[1].buf = adv7511->edid_buf;
562
563 offset = 0;
564
565 for (i = 0; i < 4; ++i) {
566 ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer,
567 ARRAY_SIZE(xfer));
568 if (ret < 0)
569 return ret;
570 else if (ret != 2)
571 return -EIO;
572
573 xfer[1].buf += 64;
574 offset += 64;
575 }
576
577 adv7511->current_edid_segment = block / 2;
578 }
579
580 if (block % 2 == 0)
581 memcpy(buf, adv7511->edid_buf, len);
582 else
583 memcpy(buf, adv7511->edid_buf + 128, len);
584
585 return 0;
586}
587
588
589
590
591
592static int adv7511_get_modes(struct adv7511 *adv7511,
593 struct drm_connector *connector)
594{
595 struct edid *edid;
596 unsigned int count;
597
598
599 if (!adv7511->powered) {
600 unsigned int edid_i2c_addr =
601 (adv7511->i2c_edid->addr << 1);
602
603 __adv7511_power_on(adv7511);
604
605
606 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
607 edid_i2c_addr);
608 }
609
610 edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511);
611
612 if (!adv7511->powered)
613 __adv7511_power_off(adv7511);
614
615
616 drm_connector_update_edid_property(connector, edid);
617 count = drm_add_edid_modes(connector, edid);
618
619 adv7511_set_config_csc(adv7511, connector, adv7511->rgb,
620 drm_detect_hdmi_monitor(edid));
621
622 cec_s_phys_addr_from_edid(adv7511->cec_adap, edid);
623
624 kfree(edid);
625
626 return count;
627}
628
629static enum drm_connector_status
630adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
631{
632 enum drm_connector_status status;
633 unsigned int val;
634 bool hpd;
635 int ret;
636
637 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
638 if (ret < 0)
639 return connector_status_disconnected;
640
641 if (val & ADV7511_STATUS_HPD)
642 status = connector_status_connected;
643 else
644 status = connector_status_disconnected;
645
646 hpd = adv7511_hpd(adv7511);
647
648
649
650
651
652 if (status == connector_status_connected && hpd && adv7511->powered) {
653 regcache_mark_dirty(adv7511->regmap);
654 adv7511_power_on(adv7511);
655 adv7511_get_modes(adv7511, connector);
656 if (adv7511->status == connector_status_connected)
657 status = connector_status_disconnected;
658 } else {
659
660 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
661 ADV7511_REG_POWER2_HPD_SRC_MASK,
662 ADV7511_REG_POWER2_HPD_SRC_BOTH);
663 }
664
665 adv7511->status = status;
666 return status;
667}
668
669static enum drm_mode_status adv7511_mode_valid(struct adv7511 *adv7511,
670 struct drm_display_mode *mode)
671{
672 if (mode->clock > 165000)
673 return MODE_CLOCK_HIGH;
674
675 return MODE_OK;
676}
677
678static void adv7511_mode_set(struct adv7511 *adv7511,
679 struct drm_display_mode *mode,
680 struct drm_display_mode *adj_mode)
681{
682 unsigned int low_refresh_rate;
683 unsigned int hsync_polarity = 0;
684 unsigned int vsync_polarity = 0;
685
686 if (adv7511->embedded_sync) {
687 unsigned int hsync_offset, hsync_len;
688 unsigned int vsync_offset, vsync_len;
689
690 hsync_offset = adj_mode->crtc_hsync_start -
691 adj_mode->crtc_hdisplay;
692 vsync_offset = adj_mode->crtc_vsync_start -
693 adj_mode->crtc_vdisplay;
694 hsync_len = adj_mode->crtc_hsync_end -
695 adj_mode->crtc_hsync_start;
696 vsync_len = adj_mode->crtc_vsync_end -
697 adj_mode->crtc_vsync_start;
698
699
700 vsync_offset += 1;
701
702 regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB,
703 ((hsync_offset >> 10) & 0x7) << 5);
704 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0),
705 (hsync_offset >> 2) & 0xff);
706 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1),
707 ((hsync_offset & 0x3) << 6) |
708 ((hsync_len >> 4) & 0x3f));
709 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2),
710 ((hsync_len & 0xf) << 4) |
711 ((vsync_offset >> 6) & 0xf));
712 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3),
713 ((vsync_offset & 0x3f) << 2) |
714 ((vsync_len >> 8) & 0x3));
715 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4),
716 vsync_len & 0xff);
717
718 hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC);
719 vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC);
720 } else {
721 enum adv7511_sync_polarity mode_hsync_polarity;
722 enum adv7511_sync_polarity mode_vsync_polarity;
723
724
725
726
727
728
729 if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
730 mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW;
731 else
732 mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
733
734 if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
735 mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW;
736 else
737 mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
738
739 if (adv7511->hsync_polarity != mode_hsync_polarity &&
740 adv7511->hsync_polarity !=
741 ADV7511_SYNC_POLARITY_PASSTHROUGH)
742 hsync_polarity = 1;
743
744 if (adv7511->vsync_polarity != mode_vsync_polarity &&
745 adv7511->vsync_polarity !=
746 ADV7511_SYNC_POLARITY_PASSTHROUGH)
747 vsync_polarity = 1;
748 }
749
750 if (mode->vrefresh <= 24000)
751 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ;
752 else if (mode->vrefresh <= 25000)
753 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ;
754 else if (mode->vrefresh <= 30000)
755 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ;
756 else
757 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
758
759 regmap_update_bits(adv7511->regmap, 0xfb,
760 0x6, low_refresh_rate << 1);
761 regmap_update_bits(adv7511->regmap, 0x17,
762 0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
763
764 if (adv7511->type == ADV7533)
765 adv7533_mode_set(adv7511, adj_mode);
766
767 drm_mode_copy(&adv7511->curr_mode, adj_mode);
768
769
770
771
772
773
774 adv7511->f_tmds = mode->clock;
775}
776
777
778static struct adv7511 *connector_to_adv7511(struct drm_connector *connector)
779{
780 return container_of(connector, struct adv7511, connector);
781}
782
783static int adv7511_connector_get_modes(struct drm_connector *connector)
784{
785 struct adv7511 *adv = connector_to_adv7511(connector);
786
787 return adv7511_get_modes(adv, connector);
788}
789
790static enum drm_mode_status
791adv7511_connector_mode_valid(struct drm_connector *connector,
792 struct drm_display_mode *mode)
793{
794 struct adv7511 *adv = connector_to_adv7511(connector);
795
796 return adv7511_mode_valid(adv, mode);
797}
798
799static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = {
800 .get_modes = adv7511_connector_get_modes,
801 .mode_valid = adv7511_connector_mode_valid,
802};
803
804static enum drm_connector_status
805adv7511_connector_detect(struct drm_connector *connector, bool force)
806{
807 struct adv7511 *adv = connector_to_adv7511(connector);
808
809 return adv7511_detect(adv, connector);
810}
811
812static const struct drm_connector_funcs adv7511_connector_funcs = {
813 .fill_modes = drm_helper_probe_single_connector_modes,
814 .detect = adv7511_connector_detect,
815 .destroy = drm_connector_cleanup,
816 .reset = drm_atomic_helper_connector_reset,
817 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
818 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
819};
820
821
822static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge)
823{
824 return container_of(bridge, struct adv7511, bridge);
825}
826
827static void adv7511_bridge_enable(struct drm_bridge *bridge)
828{
829 struct adv7511 *adv = bridge_to_adv7511(bridge);
830
831 adv7511_power_on(adv);
832}
833
834static void adv7511_bridge_disable(struct drm_bridge *bridge)
835{
836 struct adv7511 *adv = bridge_to_adv7511(bridge);
837
838 adv7511_power_off(adv);
839}
840
841static void adv7511_bridge_mode_set(struct drm_bridge *bridge,
842 struct drm_display_mode *mode,
843 struct drm_display_mode *adj_mode)
844{
845 struct adv7511 *adv = bridge_to_adv7511(bridge);
846
847 adv7511_mode_set(adv, mode, adj_mode);
848}
849
850static int adv7511_bridge_attach(struct drm_bridge *bridge)
851{
852 struct adv7511 *adv = bridge_to_adv7511(bridge);
853 int ret;
854
855 if (!bridge->encoder) {
856 DRM_ERROR("Parent encoder object not found");
857 return -ENODEV;
858 }
859
860 if (adv->i2c_main->irq)
861 adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
862 else
863 adv->connector.polled = DRM_CONNECTOR_POLL_CONNECT |
864 DRM_CONNECTOR_POLL_DISCONNECT;
865
866 ret = drm_connector_init(bridge->dev, &adv->connector,
867 &adv7511_connector_funcs,
868 DRM_MODE_CONNECTOR_HDMIA);
869 if (ret) {
870 DRM_ERROR("Failed to initialize connector with drm\n");
871 return ret;
872 }
873 drm_connector_helper_add(&adv->connector,
874 &adv7511_connector_helper_funcs);
875 drm_connector_attach_encoder(&adv->connector, bridge->encoder);
876
877 if (adv->type == ADV7533)
878 ret = adv7533_attach_dsi(adv);
879
880 if (adv->i2c_main->irq)
881 regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0),
882 ADV7511_INT0_HPD);
883
884 return ret;
885}
886
887static const struct drm_bridge_funcs adv7511_bridge_funcs = {
888 .enable = adv7511_bridge_enable,
889 .disable = adv7511_bridge_disable,
890 .mode_set = adv7511_bridge_mode_set,
891 .attach = adv7511_bridge_attach,
892};
893
894
895
896
897
898static const char * const adv7511_supply_names[] = {
899 "avdd",
900 "dvdd",
901 "pvdd",
902 "bgvdd",
903 "dvdd-3v",
904};
905
906static const char * const adv7533_supply_names[] = {
907 "avdd",
908 "dvdd",
909 "pvdd",
910 "a2vdd",
911 "v3p3",
912 "v1p2",
913};
914
915static int adv7511_init_regulators(struct adv7511 *adv)
916{
917 struct device *dev = &adv->i2c_main->dev;
918 const char * const *supply_names;
919 unsigned int i;
920 int ret;
921
922 if (adv->type == ADV7511) {
923 supply_names = adv7511_supply_names;
924 adv->num_supplies = ARRAY_SIZE(adv7511_supply_names);
925 } else {
926 supply_names = adv7533_supply_names;
927 adv->num_supplies = ARRAY_SIZE(adv7533_supply_names);
928 }
929
930 adv->supplies = devm_kcalloc(dev, adv->num_supplies,
931 sizeof(*adv->supplies), GFP_KERNEL);
932 if (!adv->supplies)
933 return -ENOMEM;
934
935 for (i = 0; i < adv->num_supplies; i++)
936 adv->supplies[i].supply = supply_names[i];
937
938 ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies);
939 if (ret)
940 return ret;
941
942 return regulator_bulk_enable(adv->num_supplies, adv->supplies);
943}
944
945static void adv7511_uninit_regulators(struct adv7511 *adv)
946{
947 regulator_bulk_disable(adv->num_supplies, adv->supplies);
948}
949
950static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg)
951{
952 struct i2c_client *i2c = to_i2c_client(dev);
953 struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
954
955 if (adv7511->type == ADV7533)
956 reg -= ADV7533_REG_CEC_OFFSET;
957
958 switch (reg) {
959 case ADV7511_REG_CEC_RX_FRAME_HDR:
960 case ADV7511_REG_CEC_RX_FRAME_DATA0...
961 ADV7511_REG_CEC_RX_FRAME_DATA0 + 14:
962 case ADV7511_REG_CEC_RX_FRAME_LEN:
963 case ADV7511_REG_CEC_RX_BUFFERS:
964 case ADV7511_REG_CEC_TX_LOW_DRV_CNT:
965 return true;
966 }
967
968 return false;
969}
970
971static const struct regmap_config adv7511_cec_regmap_config = {
972 .reg_bits = 8,
973 .val_bits = 8,
974
975 .max_register = 0xff,
976 .cache_type = REGCACHE_RBTREE,
977 .volatile_reg = adv7511_cec_register_volatile,
978};
979
980static int adv7511_init_cec_regmap(struct adv7511 *adv)
981{
982 int ret;
983
984 adv->i2c_cec = i2c_new_secondary_device(adv->i2c_main, "cec",
985 ADV7511_CEC_I2C_ADDR_DEFAULT);
986 if (!adv->i2c_cec)
987 return -EINVAL;
988 i2c_set_clientdata(adv->i2c_cec, adv);
989
990 adv->regmap_cec = devm_regmap_init_i2c(adv->i2c_cec,
991 &adv7511_cec_regmap_config);
992 if (IS_ERR(adv->regmap_cec)) {
993 ret = PTR_ERR(adv->regmap_cec);
994 goto err;
995 }
996
997 if (adv->type == ADV7533) {
998 ret = adv7533_patch_cec_registers(adv);
999 if (ret)
1000 goto err;
1001 }
1002
1003 return 0;
1004err:
1005 i2c_unregister_device(adv->i2c_cec);
1006 return ret;
1007}
1008
1009static int adv7511_parse_dt(struct device_node *np,
1010 struct adv7511_link_config *config)
1011{
1012 const char *str;
1013 int ret;
1014
1015 of_property_read_u32(np, "adi,input-depth", &config->input_color_depth);
1016 if (config->input_color_depth != 8 && config->input_color_depth != 10 &&
1017 config->input_color_depth != 12)
1018 return -EINVAL;
1019
1020 ret = of_property_read_string(np, "adi,input-colorspace", &str);
1021 if (ret < 0)
1022 return ret;
1023
1024 if (!strcmp(str, "rgb"))
1025 config->input_colorspace = HDMI_COLORSPACE_RGB;
1026 else if (!strcmp(str, "yuv422"))
1027 config->input_colorspace = HDMI_COLORSPACE_YUV422;
1028 else if (!strcmp(str, "yuv444"))
1029 config->input_colorspace = HDMI_COLORSPACE_YUV444;
1030 else
1031 return -EINVAL;
1032
1033 ret = of_property_read_string(np, "adi,input-clock", &str);
1034 if (ret < 0)
1035 return ret;
1036
1037 if (!strcmp(str, "1x"))
1038 config->input_clock = ADV7511_INPUT_CLOCK_1X;
1039 else if (!strcmp(str, "2x"))
1040 config->input_clock = ADV7511_INPUT_CLOCK_2X;
1041 else if (!strcmp(str, "ddr"))
1042 config->input_clock = ADV7511_INPUT_CLOCK_DDR;
1043 else
1044 return -EINVAL;
1045
1046 if (config->input_colorspace == HDMI_COLORSPACE_YUV422 ||
1047 config->input_clock != ADV7511_INPUT_CLOCK_1X) {
1048 ret = of_property_read_u32(np, "adi,input-style",
1049 &config->input_style);
1050 if (ret)
1051 return ret;
1052
1053 if (config->input_style < 1 || config->input_style > 3)
1054 return -EINVAL;
1055
1056 ret = of_property_read_string(np, "adi,input-justification",
1057 &str);
1058 if (ret < 0)
1059 return ret;
1060
1061 if (!strcmp(str, "left"))
1062 config->input_justification =
1063 ADV7511_INPUT_JUSTIFICATION_LEFT;
1064 else if (!strcmp(str, "evenly"))
1065 config->input_justification =
1066 ADV7511_INPUT_JUSTIFICATION_EVENLY;
1067 else if (!strcmp(str, "right"))
1068 config->input_justification =
1069 ADV7511_INPUT_JUSTIFICATION_RIGHT;
1070 else
1071 return -EINVAL;
1072
1073 } else {
1074 config->input_style = 1;
1075 config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT;
1076 }
1077
1078 of_property_read_u32(np, "adi,clock-delay", &config->clock_delay);
1079 if (config->clock_delay < -1200 || config->clock_delay > 1600)
1080 return -EINVAL;
1081
1082 config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync");
1083
1084
1085 config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE;
1086 config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
1087 config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
1088
1089 return 0;
1090}
1091
1092static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
1093{
1094 struct adv7511_link_config link_config;
1095 struct adv7511 *adv7511;
1096 struct device *dev = &i2c->dev;
1097 unsigned int val;
1098 int ret;
1099
1100 if (!dev->of_node)
1101 return -EINVAL;
1102
1103 adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL);
1104 if (!adv7511)
1105 return -ENOMEM;
1106
1107 adv7511->i2c_main = i2c;
1108 adv7511->powered = false;
1109 adv7511->status = connector_status_disconnected;
1110
1111 if (dev->of_node)
1112 adv7511->type = (enum adv7511_type)of_device_get_match_data(dev);
1113 else
1114 adv7511->type = id->driver_data;
1115
1116 memset(&link_config, 0, sizeof(link_config));
1117
1118 if (adv7511->type == ADV7511)
1119 ret = adv7511_parse_dt(dev->of_node, &link_config);
1120 else
1121 ret = adv7533_parse_dt(dev->of_node, adv7511);
1122 if (ret)
1123 return ret;
1124
1125 ret = adv7511_init_regulators(adv7511);
1126 if (ret) {
1127 dev_err(dev, "failed to init regulators\n");
1128 return ret;
1129 }
1130
1131
1132
1133
1134
1135 adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH);
1136 if (IS_ERR(adv7511->gpio_pd)) {
1137 ret = PTR_ERR(adv7511->gpio_pd);
1138 goto uninit_regulators;
1139 }
1140
1141 if (adv7511->gpio_pd) {
1142 usleep_range(5000, 6000);
1143 gpiod_set_value_cansleep(adv7511->gpio_pd, 0);
1144 }
1145
1146 adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config);
1147 if (IS_ERR(adv7511->regmap)) {
1148 ret = PTR_ERR(adv7511->regmap);
1149 goto uninit_regulators;
1150 }
1151
1152 ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val);
1153 if (ret)
1154 goto uninit_regulators;
1155 dev_dbg(dev, "Rev. %d\n", val);
1156
1157 if (adv7511->type == ADV7511)
1158 ret = regmap_register_patch(adv7511->regmap,
1159 adv7511_fixed_registers,
1160 ARRAY_SIZE(adv7511_fixed_registers));
1161 else
1162 ret = adv7533_patch_registers(adv7511);
1163 if (ret)
1164 goto uninit_regulators;
1165
1166 adv7511_packet_disable(adv7511, 0xffff);
1167
1168 adv7511->i2c_edid = i2c_new_secondary_device(i2c, "edid",
1169 ADV7511_EDID_I2C_ADDR_DEFAULT);
1170 if (!adv7511->i2c_edid) {
1171 ret = -EINVAL;
1172 goto uninit_regulators;
1173 }
1174
1175 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
1176 adv7511->i2c_edid->addr << 1);
1177
1178 adv7511->i2c_packet = i2c_new_secondary_device(i2c, "packet",
1179 ADV7511_PACKET_I2C_ADDR_DEFAULT);
1180 if (!adv7511->i2c_packet) {
1181 ret = -EINVAL;
1182 goto err_i2c_unregister_edid;
1183 }
1184
1185 regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR,
1186 adv7511->i2c_packet->addr << 1);
1187
1188 ret = adv7511_init_cec_regmap(adv7511);
1189 if (ret)
1190 goto err_i2c_unregister_packet;
1191
1192 regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR,
1193 adv7511->i2c_cec->addr << 1);
1194
1195 INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
1196
1197 if (i2c->irq) {
1198 init_waitqueue_head(&adv7511->wq);
1199
1200 ret = devm_request_threaded_irq(dev, i2c->irq, NULL,
1201 adv7511_irq_handler,
1202 IRQF_ONESHOT, dev_name(dev),
1203 adv7511);
1204 if (ret)
1205 goto err_unregister_cec;
1206 }
1207
1208 adv7511_power_off(adv7511);
1209
1210 i2c_set_clientdata(i2c, adv7511);
1211
1212 if (adv7511->type == ADV7511)
1213 adv7511_set_link_config(adv7511, &link_config);
1214
1215 ret = adv7511_cec_init(dev, adv7511);
1216 if (ret)
1217 goto err_unregister_cec;
1218
1219 adv7511->bridge.funcs = &adv7511_bridge_funcs;
1220 adv7511->bridge.of_node = dev->of_node;
1221
1222 drm_bridge_add(&adv7511->bridge);
1223
1224 adv7511_audio_init(dev, adv7511);
1225 return 0;
1226
1227err_unregister_cec:
1228 i2c_unregister_device(adv7511->i2c_cec);
1229 if (adv7511->cec_clk)
1230 clk_disable_unprepare(adv7511->cec_clk);
1231err_i2c_unregister_packet:
1232 i2c_unregister_device(adv7511->i2c_packet);
1233err_i2c_unregister_edid:
1234 i2c_unregister_device(adv7511->i2c_edid);
1235uninit_regulators:
1236 adv7511_uninit_regulators(adv7511);
1237
1238 return ret;
1239}
1240
1241static int adv7511_remove(struct i2c_client *i2c)
1242{
1243 struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
1244
1245 if (adv7511->type == ADV7533)
1246 adv7533_detach_dsi(adv7511);
1247 i2c_unregister_device(adv7511->i2c_cec);
1248 if (adv7511->cec_clk)
1249 clk_disable_unprepare(adv7511->cec_clk);
1250
1251 adv7511_uninit_regulators(adv7511);
1252
1253 drm_bridge_remove(&adv7511->bridge);
1254
1255 adv7511_audio_exit(adv7511);
1256
1257 cec_unregister_adapter(adv7511->cec_adap);
1258
1259 i2c_unregister_device(adv7511->i2c_packet);
1260 i2c_unregister_device(adv7511->i2c_edid);
1261
1262 return 0;
1263}
1264
1265static const struct i2c_device_id adv7511_i2c_ids[] = {
1266 { "adv7511", ADV7511 },
1267 { "adv7511w", ADV7511 },
1268 { "adv7513", ADV7511 },
1269#ifdef CONFIG_DRM_I2C_ADV7533
1270 { "adv7533", ADV7533 },
1271#endif
1272 { }
1273};
1274MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
1275
1276static const struct of_device_id adv7511_of_ids[] = {
1277 { .compatible = "adi,adv7511", .data = (void *)ADV7511 },
1278 { .compatible = "adi,adv7511w", .data = (void *)ADV7511 },
1279 { .compatible = "adi,adv7513", .data = (void *)ADV7511 },
1280#ifdef CONFIG_DRM_I2C_ADV7533
1281 { .compatible = "adi,adv7533", .data = (void *)ADV7533 },
1282#endif
1283 { }
1284};
1285MODULE_DEVICE_TABLE(of, adv7511_of_ids);
1286
1287static struct mipi_dsi_driver adv7533_dsi_driver = {
1288 .driver.name = "adv7533",
1289};
1290
1291static struct i2c_driver adv7511_driver = {
1292 .driver = {
1293 .name = "adv7511",
1294 .of_match_table = adv7511_of_ids,
1295 },
1296 .id_table = adv7511_i2c_ids,
1297 .probe = adv7511_probe,
1298 .remove = adv7511_remove,
1299};
1300
1301static int __init adv7511_init(void)
1302{
1303 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1304 mipi_dsi_driver_register(&adv7533_dsi_driver);
1305
1306 return i2c_add_driver(&adv7511_driver);
1307}
1308module_init(adv7511_init);
1309
1310static void __exit adv7511_exit(void)
1311{
1312 i2c_del_driver(&adv7511_driver);
1313
1314 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1315 mipi_dsi_driver_unregister(&adv7533_dsi_driver);
1316}
1317module_exit(adv7511_exit);
1318
1319MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
1320MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver");
1321MODULE_LICENSE("GPL");
1322
