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10#include <linux/clk.h>
11#include <linux/debugfs.h>
12#include <linux/gpio.h>
13#include <linux/hdmi.h>
14#include <linux/module.h>
15#include <linux/of.h>
16#include <linux/platform_device.h>
17#include <linux/regulator/consumer.h>
18#include <linux/clk/tegra.h>
19
20#include <drm/drm_edid.h>
21
22#include "hdmi.h"
23#include "drm.h"
24#include "dc.h"
25#include "host1x_client.h"
26
27struct tegra_hdmi {
28 struct host1x_client client;
29 struct tegra_output output;
30 struct device *dev;
31
32 struct regulator *vdd;
33 struct regulator *pll;
34
35 void __iomem *regs;
36 unsigned int irq;
37
38 struct clk *clk_parent;
39 struct clk *clk;
40
41 unsigned int audio_source;
42 unsigned int audio_freq;
43 bool stereo;
44 bool dvi;
45
46 struct drm_info_list *debugfs_files;
47 struct drm_minor *minor;
48 struct dentry *debugfs;
49};
50
51static inline struct tegra_hdmi *
52host1x_client_to_hdmi(struct host1x_client *client)
53{
54 return container_of(client, struct tegra_hdmi, client);
55}
56
57static inline struct tegra_hdmi *to_hdmi(struct tegra_output *output)
58{
59 return container_of(output, struct tegra_hdmi, output);
60}
61
62#define HDMI_AUDIOCLK_FREQ 216000000
63#define HDMI_REKEY_DEFAULT 56
64
65enum {
66 AUTO = 0,
67 SPDIF,
68 HDA,
69};
70
71static inline unsigned long tegra_hdmi_readl(struct tegra_hdmi *hdmi,
72 unsigned long reg)
73{
74 return readl(hdmi->regs + (reg << 2));
75}
76
77static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, unsigned long val,
78 unsigned long reg)
79{
80 writel(val, hdmi->regs + (reg << 2));
81}
82
83struct tegra_hdmi_audio_config {
84 unsigned int pclk;
85 unsigned int n;
86 unsigned int cts;
87 unsigned int aval;
88};
89
90static const struct tegra_hdmi_audio_config tegra_hdmi_audio_32k[] = {
91 { 25200000, 4096, 25200, 24000 },
92 { 27000000, 4096, 27000, 24000 },
93 { 74250000, 4096, 74250, 24000 },
94 { 148500000, 4096, 148500, 24000 },
95 { 0, 0, 0, 0 },
96};
97
98static const struct tegra_hdmi_audio_config tegra_hdmi_audio_44_1k[] = {
99 { 25200000, 5880, 26250, 25000 },
100 { 27000000, 5880, 28125, 25000 },
101 { 74250000, 4704, 61875, 20000 },
102 { 148500000, 4704, 123750, 20000 },
103 { 0, 0, 0, 0 },
104};
105
106static const struct tegra_hdmi_audio_config tegra_hdmi_audio_48k[] = {
107 { 25200000, 6144, 25200, 24000 },
108 { 27000000, 6144, 27000, 24000 },
109 { 74250000, 6144, 74250, 24000 },
110 { 148500000, 6144, 148500, 24000 },
111 { 0, 0, 0, 0 },
112};
113
114static const struct tegra_hdmi_audio_config tegra_hdmi_audio_88_2k[] = {
115 { 25200000, 11760, 26250, 25000 },
116 { 27000000, 11760, 28125, 25000 },
117 { 74250000, 9408, 61875, 20000 },
118 { 148500000, 9408, 123750, 20000 },
119 { 0, 0, 0, 0 },
120};
121
122static const struct tegra_hdmi_audio_config tegra_hdmi_audio_96k[] = {
123 { 25200000, 12288, 25200, 24000 },
124 { 27000000, 12288, 27000, 24000 },
125 { 74250000, 12288, 74250, 24000 },
126 { 148500000, 12288, 148500, 24000 },
127 { 0, 0, 0, 0 },
128};
129
130static const struct tegra_hdmi_audio_config tegra_hdmi_audio_176_4k[] = {
131 { 25200000, 23520, 26250, 25000 },
132 { 27000000, 23520, 28125, 25000 },
133 { 74250000, 18816, 61875, 20000 },
134 { 148500000, 18816, 123750, 20000 },
135 { 0, 0, 0, 0 },
136};
137
138static const struct tegra_hdmi_audio_config tegra_hdmi_audio_192k[] = {
139 { 25200000, 24576, 25200, 24000 },
140 { 27000000, 24576, 27000, 24000 },
141 { 74250000, 24576, 74250, 24000 },
142 { 148500000, 24576, 148500, 24000 },
143 { 0, 0, 0, 0 },
144};
145
146struct tmds_config {
147 unsigned int pclk;
148 u32 pll0;
149 u32 pll1;
150 u32 pe_current;
151 u32 drive_current;
152};
153
154static const struct tmds_config tegra2_tmds_config[] = {
155 {
156 .pclk = 27000000,
157 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
158 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(0) |
159 SOR_PLL_TX_REG_LOAD(3),
160 .pll1 = SOR_PLL_TMDS_TERM_ENABLE,
161 .pe_current = PE_CURRENT0(PE_CURRENT_0_0_mA) |
162 PE_CURRENT1(PE_CURRENT_0_0_mA) |
163 PE_CURRENT2(PE_CURRENT_0_0_mA) |
164 PE_CURRENT3(PE_CURRENT_0_0_mA),
165 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_7_125_mA) |
166 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_7_125_mA) |
167 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_7_125_mA) |
168 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_7_125_mA),
169 },
170 {
171 .pclk = UINT_MAX,
172 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
173 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(1) |
174 SOR_PLL_TX_REG_LOAD(3),
175 .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
176 .pe_current = PE_CURRENT0(PE_CURRENT_6_0_mA) |
177 PE_CURRENT1(PE_CURRENT_6_0_mA) |
178 PE_CURRENT2(PE_CURRENT_6_0_mA) |
179 PE_CURRENT3(PE_CURRENT_6_0_mA),
180 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_7_125_mA) |
181 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_7_125_mA) |
182 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_7_125_mA) |
183 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_7_125_mA),
184 },
185};
186
187static const struct tmds_config tegra3_tmds_config[] = {
188 {
189 .pclk = 27000000,
190 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
191 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(0) |
192 SOR_PLL_TX_REG_LOAD(0),
193 .pll1 = SOR_PLL_TMDS_TERM_ENABLE,
194 .pe_current = PE_CURRENT0(PE_CURRENT_0_0_mA) |
195 PE_CURRENT1(PE_CURRENT_0_0_mA) |
196 PE_CURRENT2(PE_CURRENT_0_0_mA) |
197 PE_CURRENT3(PE_CURRENT_0_0_mA),
198 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
199 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
200 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
201 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
202 }, {
203 .pclk = 74250000,
204 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
205 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(1) |
206 SOR_PLL_TX_REG_LOAD(0),
207 .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
208 .pe_current = PE_CURRENT0(PE_CURRENT_5_0_mA) |
209 PE_CURRENT1(PE_CURRENT_5_0_mA) |
210 PE_CURRENT2(PE_CURRENT_5_0_mA) |
211 PE_CURRENT3(PE_CURRENT_5_0_mA),
212 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
213 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
214 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
215 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
216 }, {
217 .pclk = UINT_MAX,
218 .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
219 SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(3) |
220 SOR_PLL_TX_REG_LOAD(0),
221 .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
222 .pe_current = PE_CURRENT0(PE_CURRENT_5_0_mA) |
223 PE_CURRENT1(PE_CURRENT_5_0_mA) |
224 PE_CURRENT2(PE_CURRENT_5_0_mA) |
225 PE_CURRENT3(PE_CURRENT_5_0_mA),
226 .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
227 DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
228 DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
229 DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
230 },
231};
232
233static const struct tegra_hdmi_audio_config *
234tegra_hdmi_get_audio_config(unsigned int audio_freq, unsigned int pclk)
235{
236 const struct tegra_hdmi_audio_config *table;
237
238 switch (audio_freq) {
239 case 32000:
240 table = tegra_hdmi_audio_32k;
241 break;
242
243 case 44100:
244 table = tegra_hdmi_audio_44_1k;
245 break;
246
247 case 48000:
248 table = tegra_hdmi_audio_48k;
249 break;
250
251 case 88200:
252 table = tegra_hdmi_audio_88_2k;
253 break;
254
255 case 96000:
256 table = tegra_hdmi_audio_96k;
257 break;
258
259 case 176400:
260 table = tegra_hdmi_audio_176_4k;
261 break;
262
263 case 192000:
264 table = tegra_hdmi_audio_192k;
265 break;
266
267 default:
268 return NULL;
269 }
270
271 while (table->pclk) {
272 if (table->pclk == pclk)
273 return table;
274
275 table++;
276 }
277
278 return NULL;
279}
280
281static void tegra_hdmi_setup_audio_fs_tables(struct tegra_hdmi *hdmi)
282{
283 const unsigned int freqs[] = {
284 32000, 44100, 48000, 88200, 96000, 176400, 192000
285 };
286 unsigned int i;
287
288 for (i = 0; i < ARRAY_SIZE(freqs); i++) {
289 unsigned int f = freqs[i];
290 unsigned int eight_half;
291 unsigned long value;
292 unsigned int delta;
293
294 if (f > 96000)
295 delta = 2;
296 else if (f > 480000)
297 delta = 6;
298 else
299 delta = 9;
300
301 eight_half = (8 * HDMI_AUDIOCLK_FREQ) / (f * 128);
302 value = AUDIO_FS_LOW(eight_half - delta) |
303 AUDIO_FS_HIGH(eight_half + delta);
304 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_FS(i));
305 }
306}
307
308static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi, unsigned int pclk)
309{
310 struct device_node *node = hdmi->dev->of_node;
311 const struct tegra_hdmi_audio_config *config;
312 unsigned int offset = 0;
313 unsigned long value;
314
315 switch (hdmi->audio_source) {
316 case HDA:
317 value = AUDIO_CNTRL0_SOURCE_SELECT_HDAL;
318 break;
319
320 case SPDIF:
321 value = AUDIO_CNTRL0_SOURCE_SELECT_SPDIF;
322 break;
323
324 default:
325 value = AUDIO_CNTRL0_SOURCE_SELECT_AUTO;
326 break;
327 }
328
329 if (of_device_is_compatible(node, "nvidia,tegra30-hdmi")) {
330 value |= AUDIO_CNTRL0_ERROR_TOLERANCE(6) |
331 AUDIO_CNTRL0_FRAMES_PER_BLOCK(0xc0);
332 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_CNTRL0);
333 } else {
334 value |= AUDIO_CNTRL0_INJECT_NULLSMPL;
335 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_CNTRL0);
336
337 value = AUDIO_CNTRL0_ERROR_TOLERANCE(6) |
338 AUDIO_CNTRL0_FRAMES_PER_BLOCK(0xc0);
339 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_CNTRL0);
340 }
341
342 config = tegra_hdmi_get_audio_config(hdmi->audio_freq, pclk);
343 if (!config) {
344 dev_err(hdmi->dev, "cannot set audio to %u at %u pclk\n",
345 hdmi->audio_freq, pclk);
346 return -EINVAL;
347 }
348
349 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_HDMI_ACR_CTRL);
350
351 value = AUDIO_N_RESETF | AUDIO_N_GENERATE_ALTERNATE |
352 AUDIO_N_VALUE(config->n - 1);
353 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N);
354
355 tegra_hdmi_writel(hdmi, ACR_SUBPACK_N(config->n) | ACR_ENABLE,
356 HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH);
357
358 value = ACR_SUBPACK_CTS(config->cts);
359 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW);
360
361 value = SPARE_HW_CTS | SPARE_FORCE_SW_CTS | SPARE_CTS_RESET_VAL(1);
362 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_SPARE);
363
364 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_AUDIO_N);
365 value &= ~AUDIO_N_RESETF;
366 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N);
367
368 if (of_device_is_compatible(node, "nvidia,tegra30-hdmi")) {
369 switch (hdmi->audio_freq) {
370 case 32000:
371 offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0320;
372 break;
373
374 case 44100:
375 offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0441;
376 break;
377
378 case 48000:
379 offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0480;
380 break;
381
382 case 88200:
383 offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0882;
384 break;
385
386 case 96000:
387 offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0960;
388 break;
389
390 case 176400:
391 offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_1764;
392 break;
393
394 case 192000:
395 offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_1920;
396 break;
397 }
398
399 tegra_hdmi_writel(hdmi, config->aval, offset);
400 }
401
402 tegra_hdmi_setup_audio_fs_tables(hdmi);
403
404 return 0;
405}
406
407static inline unsigned long tegra_hdmi_subpack(const u8 *ptr, size_t size)
408{
409 unsigned long value = 0;
410 size_t i;
411
412 for (i = size; i > 0; i--)
413 value = (value << 8) | ptr[i - 1];
414
415 return value;
416}
417
418static void tegra_hdmi_write_infopack(struct tegra_hdmi *hdmi, const void *data,
419 size_t size)
420{
421 const u8 *ptr = data;
422 unsigned long offset;
423 unsigned long value;
424 size_t i, j;
425
426 switch (ptr[0]) {
427 case HDMI_INFOFRAME_TYPE_AVI:
428 offset = HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER;
429 break;
430
431 case HDMI_INFOFRAME_TYPE_AUDIO:
432 offset = HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER;
433 break;
434
435 case HDMI_INFOFRAME_TYPE_VENDOR:
436 offset = HDMI_NV_PDISP_HDMI_GENERIC_HEADER;
437 break;
438
439 default:
440 dev_err(hdmi->dev, "unsupported infoframe type: %02x\n",
441 ptr[0]);
442 return;
443 }
444
445 value = INFOFRAME_HEADER_TYPE(ptr[0]) |
446 INFOFRAME_HEADER_VERSION(ptr[1]) |
447 INFOFRAME_HEADER_LEN(ptr[2]);
448 tegra_hdmi_writel(hdmi, value, offset);
449 offset++;
450
451
452
453
454
455
456 for (i = 3, j = 0; i < size; i += 7, j += 8) {
457 size_t rem = size - i, num = min_t(size_t, rem, 4);
458
459 value = tegra_hdmi_subpack(&ptr[i], num);
460 tegra_hdmi_writel(hdmi, value, offset++);
461
462 num = min_t(size_t, rem - num, 3);
463
464 value = tegra_hdmi_subpack(&ptr[i + 4], num);
465 tegra_hdmi_writel(hdmi, value, offset++);
466 }
467}
468
469static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi,
470 struct drm_display_mode *mode)
471{
472 struct hdmi_avi_infoframe frame;
473 u8 buffer[17];
474 ssize_t err;
475
476 if (hdmi->dvi) {
477 tegra_hdmi_writel(hdmi, 0,
478 HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
479 return;
480 }
481
482 err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
483 if (err < 0) {
484 dev_err(hdmi->dev, "failed to setup AVI infoframe: %zd\n", err);
485 return;
486 }
487
488 err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
489 if (err < 0) {
490 dev_err(hdmi->dev, "failed to pack AVI infoframe: %zd\n", err);
491 return;
492 }
493
494 tegra_hdmi_write_infopack(hdmi, buffer, err);
495
496 tegra_hdmi_writel(hdmi, INFOFRAME_CTRL_ENABLE,
497 HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
498}
499
500static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi)
501{
502 struct hdmi_audio_infoframe frame;
503 u8 buffer[14];
504 ssize_t err;
505
506 if (hdmi->dvi) {
507 tegra_hdmi_writel(hdmi, 0,
508 HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
509 return;
510 }
511
512 err = hdmi_audio_infoframe_init(&frame);
513 if (err < 0) {
514 dev_err(hdmi->dev, "failed to initialize audio infoframe: %d\n",
515 err);
516 return;
517 }
518
519 frame.channels = 2;
520
521 err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
522 if (err < 0) {
523 dev_err(hdmi->dev, "failed to pack audio infoframe: %zd\n",
524 err);
525 return;
526 }
527
528
529
530
531
532
533
534 tegra_hdmi_write_infopack(hdmi, buffer, min(10, err));
535
536 tegra_hdmi_writel(hdmi, INFOFRAME_CTRL_ENABLE,
537 HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
538}
539
540static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi)
541{
542 struct hdmi_vendor_infoframe frame;
543 unsigned long value;
544 u8 buffer[10];
545 ssize_t err;
546
547 if (!hdmi->stereo) {
548 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
549 value &= ~GENERIC_CTRL_ENABLE;
550 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
551 return;
552 }
553
554 memset(&frame, 0, sizeof(frame));
555
556 frame.type = HDMI_INFOFRAME_TYPE_VENDOR;
557 frame.version = 0x01;
558 frame.length = 6;
559
560 frame.data[0] = 0x03;
561 frame.data[1] = 0x0c;
562 frame.data[2] = 0x00;
563 frame.data[3] = 0x02 << 5;
564
565
566 if (1) {
567 frame.data[4] = 0x00 << 4;
568 } else {
569 frame.data[4] = 0x08 << 4;
570 frame.data[5] = 0x00 << 4;
571 }
572
573 err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
574 if (err < 0) {
575 dev_err(hdmi->dev, "failed to pack vendor infoframe: %zd\n",
576 err);
577 return;
578 }
579
580 tegra_hdmi_write_infopack(hdmi, buffer, err);
581
582 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
583 value |= GENERIC_CTRL_ENABLE;
584 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
585}
586
587static void tegra_hdmi_setup_tmds(struct tegra_hdmi *hdmi,
588 const struct tmds_config *tmds)
589{
590 unsigned long value;
591
592 tegra_hdmi_writel(hdmi, tmds->pll0, HDMI_NV_PDISP_SOR_PLL0);
593 tegra_hdmi_writel(hdmi, tmds->pll1, HDMI_NV_PDISP_SOR_PLL1);
594 tegra_hdmi_writel(hdmi, tmds->pe_current, HDMI_NV_PDISP_PE_CURRENT);
595
596 value = tmds->drive_current | DRIVE_CURRENT_FUSE_OVERRIDE;
597 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT);
598}
599
600static int tegra_output_hdmi_enable(struct tegra_output *output)
601{
602 unsigned int h_sync_width, h_front_porch, h_back_porch, i, rekey;
603 struct tegra_dc *dc = to_tegra_dc(output->encoder.crtc);
604 struct drm_display_mode *mode = &dc->base.mode;
605 struct tegra_hdmi *hdmi = to_hdmi(output);
606 struct device_node *node = hdmi->dev->of_node;
607 unsigned int pulse_start, div82, pclk;
608 const struct tmds_config *tmds;
609 unsigned int num_tmds;
610 unsigned long value;
611 int retries = 1000;
612 int err;
613
614 pclk = mode->clock * 1000;
615 h_sync_width = mode->hsync_end - mode->hsync_start;
616 h_back_porch = mode->htotal - mode->hsync_end;
617 h_front_porch = mode->hsync_start - mode->hdisplay;
618
619 err = regulator_enable(hdmi->vdd);
620 if (err < 0) {
621 dev_err(hdmi->dev, "failed to enable VDD regulator: %d\n", err);
622 return err;
623 }
624
625 err = regulator_enable(hdmi->pll);
626 if (err < 0) {
627 dev_err(hdmi->dev, "failed to enable PLL regulator: %d\n", err);
628 return err;
629 }
630
631
632
633
634
635 err = tegra_output_setup_clock(output, hdmi->clk, pclk * 2);
636 if (err < 0) {
637 dev_err(hdmi->dev, "failed to setup clock: %d\n", err);
638 return err;
639 }
640
641 err = clk_set_rate(hdmi->clk, pclk);
642 if (err < 0)
643 return err;
644
645 err = clk_enable(hdmi->clk);
646 if (err < 0) {
647 dev_err(hdmi->dev, "failed to enable clock: %d\n", err);
648 return err;
649 }
650
651 tegra_periph_reset_assert(hdmi->clk);
652 usleep_range(1000, 2000);
653 tegra_periph_reset_deassert(hdmi->clk);
654
655 tegra_dc_writel(dc, VSYNC_H_POSITION(1),
656 DC_DISP_DISP_TIMING_OPTIONS);
657 tegra_dc_writel(dc, DITHER_CONTROL_DISABLE | BASE_COLOR_SIZE888,
658 DC_DISP_DISP_COLOR_CONTROL);
659
660
661 pulse_start = 1 + h_sync_width + h_back_porch - 10;
662
663 tegra_dc_writel(dc, H_PULSE_2_ENABLE, DC_DISP_DISP_SIGNAL_OPTIONS0);
664
665 value = PULSE_MODE_NORMAL | PULSE_POLARITY_HIGH | PULSE_QUAL_VACTIVE |
666 PULSE_LAST_END_A;
667 tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_CONTROL);
668
669 value = PULSE_START(pulse_start) | PULSE_END(pulse_start + 8);
670 tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_POSITION_A);
671
672 value = VSYNC_WINDOW_END(0x210) | VSYNC_WINDOW_START(0x200) |
673 VSYNC_WINDOW_ENABLE;
674 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_VSYNC_WINDOW);
675
676 if (dc->pipe)
677 value = HDMI_SRC_DISPLAYB;
678 else
679 value = HDMI_SRC_DISPLAYA;
680
681 if ((mode->hdisplay == 720) && ((mode->vdisplay == 480) ||
682 (mode->vdisplay == 576)))
683 tegra_hdmi_writel(hdmi,
684 value | ARM_VIDEO_RANGE_FULL,
685 HDMI_NV_PDISP_INPUT_CONTROL);
686 else
687 tegra_hdmi_writel(hdmi,
688 value | ARM_VIDEO_RANGE_LIMITED,
689 HDMI_NV_PDISP_INPUT_CONTROL);
690
691 div82 = clk_get_rate(hdmi->clk) / 1000000 * 4;
692 value = SOR_REFCLK_DIV_INT(div82 >> 2) | SOR_REFCLK_DIV_FRAC(div82);
693 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_REFCLK);
694
695 if (!hdmi->dvi) {
696 err = tegra_hdmi_setup_audio(hdmi, pclk);
697 if (err < 0)
698 hdmi->dvi = true;
699 }
700
701 if (of_device_is_compatible(node, "nvidia,tegra20-hdmi")) {
702
703
704
705 }
706
707 rekey = HDMI_REKEY_DEFAULT;
708 value = HDMI_CTRL_REKEY(rekey);
709 value |= HDMI_CTRL_MAX_AC_PACKET((h_sync_width + h_back_porch +
710 h_front_porch - rekey - 18) / 32);
711
712 if (!hdmi->dvi)
713 value |= HDMI_CTRL_ENABLE;
714
715 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_CTRL);
716
717 if (hdmi->dvi)
718 tegra_hdmi_writel(hdmi, 0x0,
719 HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
720 else
721 tegra_hdmi_writel(hdmi, GENERIC_CTRL_AUDIO,
722 HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
723
724 tegra_hdmi_setup_avi_infoframe(hdmi, mode);
725 tegra_hdmi_setup_audio_infoframe(hdmi);
726 tegra_hdmi_setup_stereo_infoframe(hdmi);
727
728
729 if (of_device_is_compatible(node, "nvidia,tegra30-hdmi")) {
730 num_tmds = ARRAY_SIZE(tegra3_tmds_config);
731 tmds = tegra3_tmds_config;
732 } else {
733 num_tmds = ARRAY_SIZE(tegra2_tmds_config);
734 tmds = tegra2_tmds_config;
735 }
736
737 for (i = 0; i < num_tmds; i++) {
738 if (pclk <= tmds[i].pclk) {
739 tegra_hdmi_setup_tmds(hdmi, &tmds[i]);
740 break;
741 }
742 }
743
744 tegra_hdmi_writel(hdmi,
745 SOR_SEQ_CTL_PU_PC(0) |
746 SOR_SEQ_PU_PC_ALT(0) |
747 SOR_SEQ_PD_PC(8) |
748 SOR_SEQ_PD_PC_ALT(8),
749 HDMI_NV_PDISP_SOR_SEQ_CTL);
750
751 value = SOR_SEQ_INST_WAIT_TIME(1) |
752 SOR_SEQ_INST_WAIT_UNITS_VSYNC |
753 SOR_SEQ_INST_HALT |
754 SOR_SEQ_INST_PIN_A_LOW |
755 SOR_SEQ_INST_PIN_B_LOW |
756 SOR_SEQ_INST_DRIVE_PWM_OUT_LO;
757
758 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(0));
759 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(8));
760
761 value = 0x1c800;
762 value &= ~SOR_CSTM_ROTCLK(~0);
763 value |= SOR_CSTM_ROTCLK(2);
764 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_CSTM);
765
766 tegra_dc_writel(dc, DISP_CTRL_MODE_STOP, DC_CMD_DISPLAY_COMMAND);
767 tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
768 tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
769
770
771 tegra_hdmi_writel(hdmi,
772 SOR_PWR_NORMAL_STATE_PU |
773 SOR_PWR_NORMAL_START_NORMAL |
774 SOR_PWR_SAFE_STATE_PD |
775 SOR_PWR_SETTING_NEW_TRIGGER,
776 HDMI_NV_PDISP_SOR_PWR);
777 tegra_hdmi_writel(hdmi,
778 SOR_PWR_NORMAL_STATE_PU |
779 SOR_PWR_NORMAL_START_NORMAL |
780 SOR_PWR_SAFE_STATE_PD |
781 SOR_PWR_SETTING_NEW_DONE,
782 HDMI_NV_PDISP_SOR_PWR);
783
784 do {
785 BUG_ON(--retries < 0);
786 value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PWR);
787 } while (value & SOR_PWR_SETTING_NEW_PENDING);
788
789 value = SOR_STATE_ASY_CRCMODE_COMPLETE |
790 SOR_STATE_ASY_OWNER_HEAD0 |
791 SOR_STATE_ASY_SUBOWNER_BOTH |
792 SOR_STATE_ASY_PROTOCOL_SINGLE_TMDS_A |
793 SOR_STATE_ASY_DEPOL_POS;
794
795
796 if (mode->flags & DRM_MODE_FLAG_PHSYNC)
797 value |= SOR_STATE_ASY_HSYNCPOL_POS;
798
799 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
800 value |= SOR_STATE_ASY_HSYNCPOL_NEG;
801
802 if (mode->flags & DRM_MODE_FLAG_PVSYNC)
803 value |= SOR_STATE_ASY_VSYNCPOL_POS;
804
805 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
806 value |= SOR_STATE_ASY_VSYNCPOL_NEG;
807
808 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_STATE2);
809
810 value = SOR_STATE_ASY_HEAD_OPMODE_AWAKE | SOR_STATE_ASY_ORMODE_NORMAL;
811 tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_STATE1);
812
813 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_STATE0);
814 tegra_hdmi_writel(hdmi, SOR_STATE_UPDATE, HDMI_NV_PDISP_SOR_STATE0);
815 tegra_hdmi_writel(hdmi, value | SOR_STATE_ATTACHED,
816 HDMI_NV_PDISP_SOR_STATE1);
817 tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_STATE0);
818
819 tegra_dc_writel(dc, HDMI_ENABLE, DC_DISP_DISP_WIN_OPTIONS);
820
821 value = PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE |
822 PW4_ENABLE | PM0_ENABLE | PM1_ENABLE;
823 tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL);
824
825 value = DISP_CTRL_MODE_C_DISPLAY;
826 tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND);
827
828 tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
829 tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
830
831
832
833 return 0;
834}
835
836static int tegra_output_hdmi_disable(struct tegra_output *output)
837{
838 struct tegra_hdmi *hdmi = to_hdmi(output);
839
840 tegra_periph_reset_assert(hdmi->clk);
841 clk_disable(hdmi->clk);
842 regulator_disable(hdmi->pll);
843 regulator_disable(hdmi->vdd);
844
845 return 0;
846}
847
848static int tegra_output_hdmi_setup_clock(struct tegra_output *output,
849 struct clk *clk, unsigned long pclk)
850{
851 struct tegra_hdmi *hdmi = to_hdmi(output);
852 struct clk *base;
853 int err;
854
855 err = clk_set_parent(clk, hdmi->clk_parent);
856 if (err < 0) {
857 dev_err(output->dev, "failed to set parent: %d\n", err);
858 return err;
859 }
860
861 base = clk_get_parent(hdmi->clk_parent);
862
863
864
865
866
867 err = clk_set_rate(base, pclk * 2);
868 if (err < 0)
869 dev_err(output->dev,
870 "failed to set base clock rate to %lu Hz\n",
871 pclk * 2);
872
873 return 0;
874}
875
876static int tegra_output_hdmi_check_mode(struct tegra_output *output,
877 struct drm_display_mode *mode,
878 enum drm_mode_status *status)
879{
880 struct tegra_hdmi *hdmi = to_hdmi(output);
881 unsigned long pclk = mode->clock * 1000;
882 struct clk *parent;
883 long err;
884
885 parent = clk_get_parent(hdmi->clk_parent);
886
887 err = clk_round_rate(parent, pclk * 4);
888 if (err < 0)
889 *status = MODE_NOCLOCK;
890 else
891 *status = MODE_OK;
892
893 return 0;
894}
895
896static const struct tegra_output_ops hdmi_ops = {
897 .enable = tegra_output_hdmi_enable,
898 .disable = tegra_output_hdmi_disable,
899 .setup_clock = tegra_output_hdmi_setup_clock,
900 .check_mode = tegra_output_hdmi_check_mode,
901};
902
903static int tegra_hdmi_show_regs(struct seq_file *s, void *data)
904{
905 struct drm_info_node *node = s->private;
906 struct tegra_hdmi *hdmi = node->info_ent->data;
907
908#define DUMP_REG(name) \
909 seq_printf(s, "%-56s %#05x %08lx\n", #name, name, \
910 tegra_hdmi_readl(hdmi, name))
911
912 DUMP_REG(HDMI_CTXSW);
913 DUMP_REG(HDMI_NV_PDISP_SOR_STATE0);
914 DUMP_REG(HDMI_NV_PDISP_SOR_STATE1);
915 DUMP_REG(HDMI_NV_PDISP_SOR_STATE2);
916 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_AN_MSB);
917 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_AN_LSB);
918 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CN_MSB);
919 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CN_LSB);
920 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_AKSV_MSB);
921 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_AKSV_LSB);
922 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_BKSV_MSB);
923 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_BKSV_LSB);
924 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CKSV_MSB);
925 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CKSV_LSB);
926 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_DKSV_MSB);
927 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_DKSV_LSB);
928 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CTRL);
929 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CMODE);
930 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_MPRIME_MSB);
931 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_MPRIME_LSB);
932 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_SPRIME_MSB);
933 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB2);
934 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB1);
935 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_RI);
936 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CS_MSB);
937 DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CS_LSB);
938 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_EMU0);
939 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_EMU_RDATA0);
940 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_EMU1);
941 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_EMU2);
942 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
943 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_STATUS);
944 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER);
945 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_LOW);
946 DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_HIGH);
947 DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
948 DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_STATUS);
949 DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER);
950 DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_LOW);
951 DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_HIGH);
952 DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_LOW);
953 DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_HIGH);
954 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
955 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_STATUS);
956 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_HEADER);
957 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_LOW);
958 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_HIGH);
959 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_LOW);
960 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_HIGH);
961 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_LOW);
962 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_HIGH);
963 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_LOW);
964 DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_HIGH);
965 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_CTRL);
966 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_LOW);
967 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_HIGH);
968 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW);
969 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH);
970 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_LOW);
971 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_HIGH);
972 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_LOW);
973 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_HIGH);
974 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_LOW);
975 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_HIGH);
976 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_LOW);
977 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_HIGH);
978 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_LOW);
979 DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_HIGH);
980 DUMP_REG(HDMI_NV_PDISP_HDMI_CTRL);
981 DUMP_REG(HDMI_NV_PDISP_HDMI_VSYNC_KEEPOUT);
982 DUMP_REG(HDMI_NV_PDISP_HDMI_VSYNC_WINDOW);
983 DUMP_REG(HDMI_NV_PDISP_HDMI_GCP_CTRL);
984 DUMP_REG(HDMI_NV_PDISP_HDMI_GCP_STATUS);
985 DUMP_REG(HDMI_NV_PDISP_HDMI_GCP_SUBPACK);
986 DUMP_REG(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS1);
987 DUMP_REG(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS2);
988 DUMP_REG(HDMI_NV_PDISP_HDMI_EMU0);
989 DUMP_REG(HDMI_NV_PDISP_HDMI_EMU1);
990 DUMP_REG(HDMI_NV_PDISP_HDMI_EMU1_RDATA);
991 DUMP_REG(HDMI_NV_PDISP_HDMI_SPARE);
992 DUMP_REG(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS1);
993 DUMP_REG(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS2);
994 DUMP_REG(HDMI_NV_PDISP_HDMI_HDCPRIF_ROM_CTRL);
995 DUMP_REG(HDMI_NV_PDISP_SOR_CAP);
996 DUMP_REG(HDMI_NV_PDISP_SOR_PWR);
997 DUMP_REG(HDMI_NV_PDISP_SOR_TEST);
998 DUMP_REG(HDMI_NV_PDISP_SOR_PLL0);
999 DUMP_REG(HDMI_NV_PDISP_SOR_PLL1);
1000 DUMP_REG(HDMI_NV_PDISP_SOR_PLL2);
1001 DUMP_REG(HDMI_NV_PDISP_SOR_CSTM);
1002 DUMP_REG(HDMI_NV_PDISP_SOR_LVDS);
1003 DUMP_REG(HDMI_NV_PDISP_SOR_CRCA);
1004 DUMP_REG(HDMI_NV_PDISP_SOR_CRCB);
1005 DUMP_REG(HDMI_NV_PDISP_SOR_BLANK);
1006 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_CTL);
1007 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(0));
1008 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(1));
1009 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(2));
1010 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(3));
1011 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(4));
1012 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(5));
1013 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(6));
1014 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(7));
1015 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(8));
1016 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(9));
1017 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(10));
1018 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(11));
1019 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(12));
1020 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(13));
1021 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(14));
1022 DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(15));
1023 DUMP_REG(HDMI_NV_PDISP_SOR_VCRCA0);
1024 DUMP_REG(HDMI_NV_PDISP_SOR_VCRCA1);
1025 DUMP_REG(HDMI_NV_PDISP_SOR_CCRCA0);
1026 DUMP_REG(HDMI_NV_PDISP_SOR_CCRCA1);
1027 DUMP_REG(HDMI_NV_PDISP_SOR_EDATAA0);
1028 DUMP_REG(HDMI_NV_PDISP_SOR_EDATAA1);
1029 DUMP_REG(HDMI_NV_PDISP_SOR_COUNTA0);
1030 DUMP_REG(HDMI_NV_PDISP_SOR_COUNTA1);
1031 DUMP_REG(HDMI_NV_PDISP_SOR_DEBUGA0);
1032 DUMP_REG(HDMI_NV_PDISP_SOR_DEBUGA1);
1033 DUMP_REG(HDMI_NV_PDISP_SOR_TRIG);
1034 DUMP_REG(HDMI_NV_PDISP_SOR_MSCHECK);
1035 DUMP_REG(HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT);
1036 DUMP_REG(HDMI_NV_PDISP_AUDIO_DEBUG0);
1037 DUMP_REG(HDMI_NV_PDISP_AUDIO_DEBUG1);
1038 DUMP_REG(HDMI_NV_PDISP_AUDIO_DEBUG2);
1039 DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(0));
1040 DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(1));
1041 DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(2));
1042 DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(3));
1043 DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(4));
1044 DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(5));
1045 DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(6));
1046 DUMP_REG(HDMI_NV_PDISP_AUDIO_PULSE_WIDTH);
1047 DUMP_REG(HDMI_NV_PDISP_AUDIO_THRESHOLD);
1048 DUMP_REG(HDMI_NV_PDISP_AUDIO_CNTRL0);
1049 DUMP_REG(HDMI_NV_PDISP_AUDIO_N);
1050 DUMP_REG(HDMI_NV_PDISP_HDCPRIF_ROM_TIMING);
1051 DUMP_REG(HDMI_NV_PDISP_SOR_REFCLK);
1052 DUMP_REG(HDMI_NV_PDISP_CRC_CONTROL);
1053 DUMP_REG(HDMI_NV_PDISP_INPUT_CONTROL);
1054 DUMP_REG(HDMI_NV_PDISP_SCRATCH);
1055 DUMP_REG(HDMI_NV_PDISP_PE_CURRENT);
1056 DUMP_REG(HDMI_NV_PDISP_KEY_CTRL);
1057 DUMP_REG(HDMI_NV_PDISP_KEY_DEBUG0);
1058 DUMP_REG(HDMI_NV_PDISP_KEY_DEBUG1);
1059 DUMP_REG(HDMI_NV_PDISP_KEY_DEBUG2);
1060 DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_0);
1061 DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_1);
1062 DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_2);
1063 DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_3);
1064 DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_TRIG);
1065 DUMP_REG(HDMI_NV_PDISP_KEY_SKEY_INDEX);
1066 DUMP_REG(HDMI_NV_PDISP_SOR_AUDIO_CNTRL0);
1067 DUMP_REG(HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR);
1068 DUMP_REG(HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE);
1069
1070#undef DUMP_REG
1071
1072 return 0;
1073}
1074
1075static struct drm_info_list debugfs_files[] = {
1076 { "regs", tegra_hdmi_show_regs, 0, NULL },
1077};
1078
1079static int tegra_hdmi_debugfs_init(struct tegra_hdmi *hdmi,
1080 struct drm_minor *minor)
1081{
1082 unsigned int i;
1083 int err;
1084
1085 hdmi->debugfs = debugfs_create_dir("hdmi", minor->debugfs_root);
1086 if (!hdmi->debugfs)
1087 return -ENOMEM;
1088
1089 hdmi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),
1090 GFP_KERNEL);
1091 if (!hdmi->debugfs_files) {
1092 err = -ENOMEM;
1093 goto remove;
1094 }
1095
1096 for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)
1097 hdmi->debugfs_files[i].data = hdmi;
1098
1099 err = drm_debugfs_create_files(hdmi->debugfs_files,
1100 ARRAY_SIZE(debugfs_files),
1101 hdmi->debugfs, minor);
1102 if (err < 0)
1103 goto free;
1104
1105 hdmi->minor = minor;
1106
1107 return 0;
1108
1109free:
1110 kfree(hdmi->debugfs_files);
1111 hdmi->debugfs_files = NULL;
1112remove:
1113 debugfs_remove(hdmi->debugfs);
1114 hdmi->debugfs = NULL;
1115
1116 return err;
1117}
1118
1119static int tegra_hdmi_debugfs_exit(struct tegra_hdmi *hdmi)
1120{
1121 drm_debugfs_remove_files(hdmi->debugfs_files, ARRAY_SIZE(debugfs_files),
1122 hdmi->minor);
1123 hdmi->minor = NULL;
1124
1125 kfree(hdmi->debugfs_files);
1126 hdmi->debugfs_files = NULL;
1127
1128 debugfs_remove(hdmi->debugfs);
1129 hdmi->debugfs = NULL;
1130
1131 return 0;
1132}
1133
1134static int tegra_hdmi_drm_init(struct host1x_client *client,
1135 struct drm_device *drm)
1136{
1137 struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
1138 int err;
1139
1140 hdmi->output.type = TEGRA_OUTPUT_HDMI;
1141 hdmi->output.dev = client->dev;
1142 hdmi->output.ops = &hdmi_ops;
1143
1144 err = tegra_output_init(drm, &hdmi->output);
1145 if (err < 0) {
1146 dev_err(client->dev, "output setup failed: %d\n", err);
1147 return err;
1148 }
1149
1150 if (IS_ENABLED(CONFIG_DEBUG_FS)) {
1151 err = tegra_hdmi_debugfs_init(hdmi, drm->primary);
1152 if (err < 0)
1153 dev_err(client->dev, "debugfs setup failed: %d\n", err);
1154 }
1155
1156 return 0;
1157}
1158
1159static int tegra_hdmi_drm_exit(struct host1x_client *client)
1160{
1161 struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
1162 int err;
1163
1164 if (IS_ENABLED(CONFIG_DEBUG_FS)) {
1165 err = tegra_hdmi_debugfs_exit(hdmi);
1166 if (err < 0)
1167 dev_err(client->dev, "debugfs cleanup failed: %d\n",
1168 err);
1169 }
1170
1171 err = tegra_output_disable(&hdmi->output);
1172 if (err < 0) {
1173 dev_err(client->dev, "output failed to disable: %d\n", err);
1174 return err;
1175 }
1176
1177 err = tegra_output_exit(&hdmi->output);
1178 if (err < 0) {
1179 dev_err(client->dev, "output cleanup failed: %d\n", err);
1180 return err;
1181 }
1182
1183 return 0;
1184}
1185
1186static const struct host1x_client_ops hdmi_client_ops = {
1187 .drm_init = tegra_hdmi_drm_init,
1188 .drm_exit = tegra_hdmi_drm_exit,
1189};
1190
1191static int tegra_hdmi_probe(struct platform_device *pdev)
1192{
1193 struct host1x_drm *host1x = host1x_get_drm_data(pdev->dev.parent);
1194 struct tegra_hdmi *hdmi;
1195 struct resource *regs;
1196 int err;
1197
1198 hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
1199 if (!hdmi)
1200 return -ENOMEM;
1201
1202 hdmi->dev = &pdev->dev;
1203 hdmi->audio_source = AUTO;
1204 hdmi->audio_freq = 44100;
1205 hdmi->stereo = false;
1206 hdmi->dvi = false;
1207
1208 hdmi->clk = devm_clk_get(&pdev->dev, NULL);
1209 if (IS_ERR(hdmi->clk)) {
1210 dev_err(&pdev->dev, "failed to get clock\n");
1211 return PTR_ERR(hdmi->clk);
1212 }
1213
1214 err = clk_prepare(hdmi->clk);
1215 if (err < 0)
1216 return err;
1217
1218 hdmi->clk_parent = devm_clk_get(&pdev->dev, "parent");
1219 if (IS_ERR(hdmi->clk_parent))
1220 return PTR_ERR(hdmi->clk_parent);
1221
1222 err = clk_prepare(hdmi->clk_parent);
1223 if (err < 0)
1224 return err;
1225
1226 err = clk_set_parent(hdmi->clk, hdmi->clk_parent);
1227 if (err < 0) {
1228 dev_err(&pdev->dev, "failed to setup clocks: %d\n", err);
1229 return err;
1230 }
1231
1232 hdmi->vdd = devm_regulator_get(&pdev->dev, "vdd");
1233 if (IS_ERR(hdmi->vdd)) {
1234 dev_err(&pdev->dev, "failed to get VDD regulator\n");
1235 return PTR_ERR(hdmi->vdd);
1236 }
1237
1238 hdmi->pll = devm_regulator_get(&pdev->dev, "pll");
1239 if (IS_ERR(hdmi->pll)) {
1240 dev_err(&pdev->dev, "failed to get PLL regulator\n");
1241 return PTR_ERR(hdmi->pll);
1242 }
1243
1244 hdmi->output.dev = &pdev->dev;
1245
1246 err = tegra_output_parse_dt(&hdmi->output);
1247 if (err < 0)
1248 return err;
1249
1250 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1251 if (!regs)
1252 return -ENXIO;
1253
1254 hdmi->regs = devm_ioremap_resource(&pdev->dev, regs);
1255 if (IS_ERR(hdmi->regs))
1256 return PTR_ERR(hdmi->regs);
1257
1258 err = platform_get_irq(pdev, 0);
1259 if (err < 0)
1260 return err;
1261
1262 hdmi->irq = err;
1263
1264 hdmi->client.ops = &hdmi_client_ops;
1265 INIT_LIST_HEAD(&hdmi->client.list);
1266 hdmi->client.dev = &pdev->dev;
1267
1268 err = host1x_register_client(host1x, &hdmi->client);
1269 if (err < 0) {
1270 dev_err(&pdev->dev, "failed to register host1x client: %d\n",
1271 err);
1272 return err;
1273 }
1274
1275 platform_set_drvdata(pdev, hdmi);
1276
1277 return 0;
1278}
1279
1280static int tegra_hdmi_remove(struct platform_device *pdev)
1281{
1282 struct host1x_drm *host1x = host1x_get_drm_data(pdev->dev.parent);
1283 struct tegra_hdmi *hdmi = platform_get_drvdata(pdev);
1284 int err;
1285
1286 err = host1x_unregister_client(host1x, &hdmi->client);
1287 if (err < 0) {
1288 dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",
1289 err);
1290 return err;
1291 }
1292
1293 clk_unprepare(hdmi->clk_parent);
1294 clk_unprepare(hdmi->clk);
1295
1296 return 0;
1297}
1298
1299static struct of_device_id tegra_hdmi_of_match[] = {
1300 { .compatible = "nvidia,tegra30-hdmi", },
1301 { .compatible = "nvidia,tegra20-hdmi", },
1302 { },
1303};
1304
1305struct platform_driver tegra_hdmi_driver = {
1306 .driver = {
1307 .name = "tegra-hdmi",
1308 .owner = THIS_MODULE,
1309 .of_match_table = tegra_hdmi_of_match,
1310 },
1311 .probe = tegra_hdmi_probe,
1312 .remove = tegra_hdmi_remove,
1313};
1314
