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9#include <linux/clk.h>
10#include <linux/component.h>
11#include <linux/io.h>
12#include <linux/module.h>
13#include <linux/of_platform.h>
14#include <linux/platform_device.h>
15#include <linux/reset.h>
16#include <linux/seq_file.h>
17
18#include <drm/drm_atomic_helper.h>
19#include <drm/drm_debugfs.h>
20#include <drm/drm_device.h>
21#include <drm/drm_file.h>
22#include <drm/drm_print.h>
23
24#include "sti_crtc.h"
25#include "sti_drv.h"
26#include "sti_vtg.h"
27
28
29#define TVO_CSC_MAIN_M0 0x000
30#define TVO_CSC_MAIN_M1 0x004
31#define TVO_CSC_MAIN_M2 0x008
32#define TVO_CSC_MAIN_M3 0x00c
33#define TVO_CSC_MAIN_M4 0x010
34#define TVO_CSC_MAIN_M5 0x014
35#define TVO_CSC_MAIN_M6 0x018
36#define TVO_CSC_MAIN_M7 0x01c
37#define TVO_MAIN_IN_VID_FORMAT 0x030
38#define TVO_CSC_AUX_M0 0x100
39#define TVO_CSC_AUX_M1 0x104
40#define TVO_CSC_AUX_M2 0x108
41#define TVO_CSC_AUX_M3 0x10c
42#define TVO_CSC_AUX_M4 0x110
43#define TVO_CSC_AUX_M5 0x114
44#define TVO_CSC_AUX_M6 0x118
45#define TVO_CSC_AUX_M7 0x11c
46#define TVO_AUX_IN_VID_FORMAT 0x130
47#define TVO_VIP_HDF 0x400
48#define TVO_HD_SYNC_SEL 0x418
49#define TVO_HD_DAC_CFG_OFF 0x420
50#define TVO_VIP_HDMI 0x500
51#define TVO_HDMI_FORCE_COLOR_0 0x504
52#define TVO_HDMI_FORCE_COLOR_1 0x508
53#define TVO_HDMI_CLIP_VALUE_B_CB 0x50c
54#define TVO_HDMI_CLIP_VALUE_Y_G 0x510
55#define TVO_HDMI_CLIP_VALUE_R_CR 0x514
56#define TVO_HDMI_SYNC_SEL 0x518
57#define TVO_HDMI_DFV_OBS 0x540
58#define TVO_VIP_DVO 0x600
59#define TVO_DVO_SYNC_SEL 0x618
60#define TVO_DVO_CONFIG 0x620
61
62#define TVO_IN_FMT_SIGNED BIT(0)
63#define TVO_SYNC_EXT BIT(4)
64
65#define TVO_VIP_REORDER_R_SHIFT 24
66#define TVO_VIP_REORDER_G_SHIFT 20
67#define TVO_VIP_REORDER_B_SHIFT 16
68#define TVO_VIP_REORDER_MASK 0x3
69#define TVO_VIP_REORDER_Y_G_SEL 0
70#define TVO_VIP_REORDER_CB_B_SEL 1
71#define TVO_VIP_REORDER_CR_R_SEL 2
72
73#define TVO_VIP_CLIP_SHIFT 8
74#define TVO_VIP_CLIP_MASK 0x7
75#define TVO_VIP_CLIP_DISABLED 0
76#define TVO_VIP_CLIP_EAV_SAV 1
77#define TVO_VIP_CLIP_LIMITED_RANGE_RGB_Y 2
78#define TVO_VIP_CLIP_LIMITED_RANGE_CB_CR 3
79#define TVO_VIP_CLIP_PROG_RANGE 4
80
81#define TVO_VIP_RND_SHIFT 4
82#define TVO_VIP_RND_MASK 0x3
83#define TVO_VIP_RND_8BIT_ROUNDED 0
84#define TVO_VIP_RND_10BIT_ROUNDED 1
85#define TVO_VIP_RND_12BIT_ROUNDED 2
86
87#define TVO_VIP_SEL_INPUT_MASK 0xf
88#define TVO_VIP_SEL_INPUT_MAIN 0x0
89#define TVO_VIP_SEL_INPUT_AUX 0x8
90#define TVO_VIP_SEL_INPUT_FORCE_COLOR 0xf
91#define TVO_VIP_SEL_INPUT_BYPASS_MASK 0x1
92#define TVO_VIP_SEL_INPUT_BYPASSED 1
93
94#define TVO_SYNC_MAIN_VTG_SET_REF 0x00
95#define TVO_SYNC_AUX_VTG_SET_REF 0x10
96
97#define TVO_SYNC_HD_DCS_SHIFT 8
98
99#define TVO_SYNC_DVO_PAD_HSYNC_SHIFT 8
100#define TVO_SYNC_DVO_PAD_VSYNC_SHIFT 16
101
102#define ENCODER_CRTC_MASK (BIT(0) | BIT(1))
103
104#define TVO_MIN_HD_HEIGHT 720
105
106
107enum sti_tvout_video_out_type {
108 STI_TVOUT_VIDEO_OUT_RGB,
109 STI_TVOUT_VIDEO_OUT_YUV,
110};
111
112struct sti_tvout {
113 struct device *dev;
114 struct drm_device *drm_dev;
115 void __iomem *regs;
116 struct reset_control *reset;
117 struct drm_encoder *hdmi;
118 struct drm_encoder *hda;
119 struct drm_encoder *dvo;
120 bool debugfs_registered;
121};
122
123struct sti_tvout_encoder {
124 struct drm_encoder encoder;
125 struct sti_tvout *tvout;
126};
127
128#define to_sti_tvout_encoder(x) \
129 container_of(x, struct sti_tvout_encoder, encoder)
130
131#define to_sti_tvout(x) to_sti_tvout_encoder(x)->tvout
132
133
134static const u32 rgb_to_ycbcr_601[8] = {
135 0xF927082E, 0x04C9FEAB, 0x01D30964, 0xFA95FD3D,
136 0x0000082E, 0x00002000, 0x00002000, 0x00000000
137};
138
139
140static const u32 rgb_to_ycbcr_709[8] = {
141 0xF891082F, 0x0367FF40, 0x01280B71, 0xF9B1FE20,
142 0x0000082F, 0x00002000, 0x00002000, 0x00000000
143};
144
145static u32 tvout_read(struct sti_tvout *tvout, int offset)
146{
147 return readl(tvout->regs + offset);
148}
149
150static void tvout_write(struct sti_tvout *tvout, u32 val, int offset)
151{
152 writel(val, tvout->regs + offset);
153}
154
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156
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159
160
161
162
163
164static void tvout_vip_set_color_order(struct sti_tvout *tvout, int reg,
165 u32 cr_r, u32 y_g, u32 cb_b)
166{
167 u32 val = tvout_read(tvout, reg);
168
169 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT);
170 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT);
171 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT);
172 val |= cr_r << TVO_VIP_REORDER_R_SHIFT;
173 val |= y_g << TVO_VIP_REORDER_G_SHIFT;
174 val |= cb_b << TVO_VIP_REORDER_B_SHIFT;
175
176 tvout_write(tvout, val, reg);
177}
178
179
180
181
182
183
184
185
186static void tvout_vip_set_clip_mode(struct sti_tvout *tvout, int reg, u32 range)
187{
188 u32 val = tvout_read(tvout, reg);
189
190 val &= ~(TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT);
191 val |= range << TVO_VIP_CLIP_SHIFT;
192 tvout_write(tvout, val, reg);
193}
194
195
196
197
198
199
200
201
202static void tvout_vip_set_rnd(struct sti_tvout *tvout, int reg, u32 rnd)
203{
204 u32 val = tvout_read(tvout, reg);
205
206 val &= ~(TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT);
207 val |= rnd << TVO_VIP_RND_SHIFT;
208 tvout_write(tvout, val, reg);
209}
210
211
212
213
214
215
216
217
218
219static void tvout_vip_set_sel_input(struct sti_tvout *tvout,
220 int reg,
221 bool main_path,
222 enum sti_tvout_video_out_type video_out)
223{
224 u32 sel_input;
225 u32 val = tvout_read(tvout, reg);
226
227 if (main_path)
228 sel_input = TVO_VIP_SEL_INPUT_MAIN;
229 else
230 sel_input = TVO_VIP_SEL_INPUT_AUX;
231
232 switch (video_out) {
233 case STI_TVOUT_VIDEO_OUT_RGB:
234 sel_input |= TVO_VIP_SEL_INPUT_BYPASSED;
235 break;
236 case STI_TVOUT_VIDEO_OUT_YUV:
237 sel_input &= ~TVO_VIP_SEL_INPUT_BYPASSED;
238 break;
239 }
240
241
242 sel_input = sel_input ^ TVO_VIP_SEL_INPUT_BYPASS_MASK;
243
244 val &= ~TVO_VIP_SEL_INPUT_MASK;
245 val |= sel_input;
246 tvout_write(tvout, val, reg);
247}
248
249
250
251
252
253
254
255
256static void tvout_vip_set_in_vid_fmt(struct sti_tvout *tvout,
257 int reg, u32 in_vid_fmt)
258{
259 u32 val = tvout_read(tvout, reg);
260
261 val &= ~TVO_IN_FMT_SIGNED;
262 val |= in_vid_fmt;
263 tvout_write(tvout, val, reg);
264}
265
266
267
268
269
270
271
272static void tvout_preformatter_set_matrix(struct sti_tvout *tvout,
273 struct drm_display_mode *mode)
274{
275 unsigned int i;
276 const u32 *pf_matrix;
277
278 if (mode->vdisplay >= TVO_MIN_HD_HEIGHT)
279 pf_matrix = rgb_to_ycbcr_709;
280 else
281 pf_matrix = rgb_to_ycbcr_601;
282
283 for (i = 0; i < 8; i++) {
284 tvout_write(tvout, *(pf_matrix + i),
285 TVO_CSC_MAIN_M0 + (i * 4));
286 tvout_write(tvout, *(pf_matrix + i),
287 TVO_CSC_AUX_M0 + (i * 4));
288 }
289}
290
291
292
293
294
295
296
297
298static void tvout_dvo_start(struct sti_tvout *tvout, bool main_path)
299{
300 u32 tvo_in_vid_format;
301 int val, tmp;
302
303 dev_dbg(tvout->dev, "%s\n", __func__);
304
305 if (main_path) {
306 DRM_DEBUG_DRIVER("main vip for DVO\n");
307
308 tmp = TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_DVO;
309 val = tmp << TVO_SYNC_DVO_PAD_VSYNC_SHIFT;
310 val |= tmp << TVO_SYNC_DVO_PAD_HSYNC_SHIFT;
311 val |= tmp;
312 tvout_write(tvout, val, TVO_DVO_SYNC_SEL);
313 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
314 } else {
315 DRM_DEBUG_DRIVER("aux vip for DVO\n");
316
317 tmp = TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_DVO;
318 val = tmp << TVO_SYNC_DVO_PAD_VSYNC_SHIFT;
319 val |= tmp << TVO_SYNC_DVO_PAD_HSYNC_SHIFT;
320 val |= tmp;
321 tvout_write(tvout, val, TVO_DVO_SYNC_SEL);
322 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
323 }
324
325
326 tvout_vip_set_color_order(tvout, TVO_VIP_DVO,
327 TVO_VIP_REORDER_CR_R_SEL,
328 TVO_VIP_REORDER_Y_G_SEL,
329 TVO_VIP_REORDER_CB_B_SEL);
330
331
332 tvout_vip_set_clip_mode(tvout, TVO_VIP_DVO, TVO_VIP_CLIP_DISABLED);
333
334
335 tvout_vip_set_rnd(tvout, TVO_VIP_DVO, TVO_VIP_RND_8BIT_ROUNDED);
336
337
338 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format, TVO_IN_FMT_SIGNED);
339
340
341 tvout_vip_set_sel_input(tvout, TVO_VIP_DVO, main_path,
342 STI_TVOUT_VIDEO_OUT_RGB);
343}
344
345
346
347
348
349
350
351
352static void tvout_hdmi_start(struct sti_tvout *tvout, bool main_path)
353{
354 u32 tvo_in_vid_format;
355
356 dev_dbg(tvout->dev, "%s\n", __func__);
357
358 if (main_path) {
359 DRM_DEBUG_DRIVER("main vip for hdmi\n");
360
361 tvout_write(tvout,
362 TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDMI,
363 TVO_HDMI_SYNC_SEL);
364 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
365 } else {
366 DRM_DEBUG_DRIVER("aux vip for hdmi\n");
367
368 tvout_write(tvout,
369 TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDMI,
370 TVO_HDMI_SYNC_SEL);
371 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
372 }
373
374
375 tvout_vip_set_color_order(tvout, TVO_VIP_HDMI,
376 TVO_VIP_REORDER_CR_R_SEL,
377 TVO_VIP_REORDER_Y_G_SEL,
378 TVO_VIP_REORDER_CB_B_SEL);
379
380
381 tvout_vip_set_clip_mode(tvout, TVO_VIP_HDMI, TVO_VIP_CLIP_DISABLED);
382
383
384 tvout_vip_set_rnd(tvout, TVO_VIP_HDMI, TVO_VIP_RND_8BIT_ROUNDED);
385
386
387 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format, TVO_IN_FMT_SIGNED);
388
389
390 tvout_vip_set_sel_input(tvout, TVO_VIP_HDMI, main_path,
391 STI_TVOUT_VIDEO_OUT_RGB);
392}
393
394
395
396
397
398
399
400
401static void tvout_hda_start(struct sti_tvout *tvout, bool main_path)
402{
403 u32 tvo_in_vid_format;
404 int val;
405
406 dev_dbg(tvout->dev, "%s\n", __func__);
407
408 if (main_path) {
409 DRM_DEBUG_DRIVER("main vip for HDF\n");
410
411 val = TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDDCS;
412 val = val << TVO_SYNC_HD_DCS_SHIFT;
413 val |= TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDF;
414 tvout_write(tvout, val, TVO_HD_SYNC_SEL);
415 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
416 } else {
417 DRM_DEBUG_DRIVER("aux vip for HDF\n");
418
419 val = TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDDCS;
420 val = val << TVO_SYNC_HD_DCS_SHIFT;
421 val |= TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDF;
422 tvout_write(tvout, val, TVO_HD_SYNC_SEL);
423 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
424 }
425
426
427 tvout_vip_set_color_order(tvout, TVO_VIP_HDF,
428 TVO_VIP_REORDER_CR_R_SEL,
429 TVO_VIP_REORDER_Y_G_SEL,
430 TVO_VIP_REORDER_CB_B_SEL);
431
432
433 tvout_vip_set_clip_mode(tvout, TVO_VIP_HDF, TVO_VIP_CLIP_DISABLED);
434
435
436 tvout_vip_set_rnd(tvout, TVO_VIP_HDF, TVO_VIP_RND_10BIT_ROUNDED);
437
438
439 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format, TVO_IN_FMT_SIGNED);
440
441
442 tvout_vip_set_sel_input(tvout, TVO_VIP_HDF, main_path,
443 STI_TVOUT_VIDEO_OUT_YUV);
444
445
446 tvout_write(tvout, 0, TVO_HD_DAC_CFG_OFF);
447}
448
449#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
450 readl(tvout->regs + reg))
451
452static void tvout_dbg_vip(struct seq_file *s, int val)
453{
454 int r, g, b, tmp, mask;
455 char *const reorder[] = {"Y_G", "Cb_B", "Cr_R"};
456 char *const clipping[] = {"No", "EAV/SAV", "Limited range RGB/Y",
457 "Limited range Cb/Cr", "decided by register"};
458 char *const round[] = {"8-bit", "10-bit", "12-bit"};
459 char *const input_sel[] = {"Main (color matrix enabled)",
460 "Main (color matrix by-passed)",
461 "", "", "", "", "", "",
462 "Aux (color matrix enabled)",
463 "Aux (color matrix by-passed)",
464 "", "", "", "", "", "Force value"};
465
466 seq_putc(s, '\t');
467 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT;
468 r = (val & mask) >> TVO_VIP_REORDER_R_SHIFT;
469 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT;
470 g = (val & mask) >> TVO_VIP_REORDER_G_SHIFT;
471 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT;
472 b = (val & mask) >> TVO_VIP_REORDER_B_SHIFT;
473 seq_printf(s, "%-24s %s->%s %s->%s %s->%s\n", "Reorder:",
474 reorder[r], reorder[TVO_VIP_REORDER_CR_R_SEL],
475 reorder[g], reorder[TVO_VIP_REORDER_Y_G_SEL],
476 reorder[b], reorder[TVO_VIP_REORDER_CB_B_SEL]);
477 seq_puts(s, "\t\t\t\t\t");
478 mask = TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT;
479 tmp = (val & mask) >> TVO_VIP_CLIP_SHIFT;
480 seq_printf(s, "%-24s %s\n", "Clipping:", clipping[tmp]);
481 seq_puts(s, "\t\t\t\t\t");
482 mask = TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT;
483 tmp = (val & mask) >> TVO_VIP_RND_SHIFT;
484 seq_printf(s, "%-24s input data rounded to %s per component\n",
485 "Round:", round[tmp]);
486 seq_puts(s, "\t\t\t\t\t");
487 tmp = (val & TVO_VIP_SEL_INPUT_MASK);
488 seq_printf(s, "%-24s %s", "Input selection:", input_sel[tmp]);
489}
490
491static void tvout_dbg_hd_dac_cfg(struct seq_file *s, int val)
492{
493 seq_printf(s, "\t%-24s %s", "HD DAC:",
494 val & 1 ? "disabled" : "enabled");
495}
496
497static int tvout_dbg_show(struct seq_file *s, void *data)
498{
499 struct drm_info_node *node = s->private;
500 struct sti_tvout *tvout = (struct sti_tvout *)node->info_ent->data;
501 struct drm_crtc *crtc;
502
503 seq_printf(s, "TVOUT: (vaddr = 0x%p)", tvout->regs);
504
505 seq_puts(s, "\n\n HDMI encoder: ");
506 crtc = tvout->hdmi->crtc;
507 if (crtc) {
508 seq_printf(s, "connected to %s path",
509 sti_crtc_is_main(crtc) ? "main" : "aux");
510 DBGFS_DUMP(TVO_HDMI_SYNC_SEL);
511 DBGFS_DUMP(TVO_VIP_HDMI);
512 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDMI));
513 } else {
514 seq_puts(s, "disabled");
515 }
516
517 seq_puts(s, "\n\n DVO encoder: ");
518 crtc = tvout->dvo->crtc;
519 if (crtc) {
520 seq_printf(s, "connected to %s path",
521 sti_crtc_is_main(crtc) ? "main" : "aux");
522 DBGFS_DUMP(TVO_DVO_SYNC_SEL);
523 DBGFS_DUMP(TVO_DVO_CONFIG);
524 DBGFS_DUMP(TVO_VIP_DVO);
525 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_DVO));
526 } else {
527 seq_puts(s, "disabled");
528 }
529
530 seq_puts(s, "\n\n HDA encoder: ");
531 crtc = tvout->hda->crtc;
532 if (crtc) {
533 seq_printf(s, "connected to %s path",
534 sti_crtc_is_main(crtc) ? "main" : "aux");
535 DBGFS_DUMP(TVO_HD_SYNC_SEL);
536 DBGFS_DUMP(TVO_HD_DAC_CFG_OFF);
537 tvout_dbg_hd_dac_cfg(s,
538 readl(tvout->regs + TVO_HD_DAC_CFG_OFF));
539 DBGFS_DUMP(TVO_VIP_HDF);
540 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDF));
541 } else {
542 seq_puts(s, "disabled");
543 }
544
545 seq_puts(s, "\n\n main path configuration");
546 DBGFS_DUMP(TVO_CSC_MAIN_M0);
547 DBGFS_DUMP(TVO_CSC_MAIN_M1);
548 DBGFS_DUMP(TVO_CSC_MAIN_M2);
549 DBGFS_DUMP(TVO_CSC_MAIN_M3);
550 DBGFS_DUMP(TVO_CSC_MAIN_M4);
551 DBGFS_DUMP(TVO_CSC_MAIN_M5);
552 DBGFS_DUMP(TVO_CSC_MAIN_M6);
553 DBGFS_DUMP(TVO_CSC_MAIN_M7);
554 DBGFS_DUMP(TVO_MAIN_IN_VID_FORMAT);
555
556 seq_puts(s, "\n\n auxiliary path configuration");
557 DBGFS_DUMP(TVO_CSC_AUX_M0);
558 DBGFS_DUMP(TVO_CSC_AUX_M2);
559 DBGFS_DUMP(TVO_CSC_AUX_M3);
560 DBGFS_DUMP(TVO_CSC_AUX_M4);
561 DBGFS_DUMP(TVO_CSC_AUX_M5);
562 DBGFS_DUMP(TVO_CSC_AUX_M6);
563 DBGFS_DUMP(TVO_CSC_AUX_M7);
564 DBGFS_DUMP(TVO_AUX_IN_VID_FORMAT);
565 seq_putc(s, '\n');
566 return 0;
567}
568
569static struct drm_info_list tvout_debugfs_files[] = {
570 { "tvout", tvout_dbg_show, 0, NULL },
571};
572
573static int tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
574{
575 unsigned int i;
576
577 for (i = 0; i < ARRAY_SIZE(tvout_debugfs_files); i++)
578 tvout_debugfs_files[i].data = tvout;
579
580 return drm_debugfs_create_files(tvout_debugfs_files,
581 ARRAY_SIZE(tvout_debugfs_files),
582 minor->debugfs_root, minor);
583}
584
585static void sti_tvout_encoder_dpms(struct drm_encoder *encoder, int mode)
586{
587}
588
589static void sti_tvout_encoder_mode_set(struct drm_encoder *encoder,
590 struct drm_display_mode *mode,
591 struct drm_display_mode *adjusted_mode)
592{
593}
594
595static void sti_tvout_encoder_destroy(struct drm_encoder *encoder)
596{
597 struct sti_tvout_encoder *sti_encoder = to_sti_tvout_encoder(encoder);
598
599 drm_encoder_cleanup(encoder);
600 kfree(sti_encoder);
601}
602
603static int sti_tvout_late_register(struct drm_encoder *encoder)
604{
605 struct sti_tvout *tvout = to_sti_tvout(encoder);
606 int ret;
607
608 if (tvout->debugfs_registered)
609 return 0;
610
611 ret = tvout_debugfs_init(tvout, encoder->dev->primary);
612 if (ret)
613 return ret;
614
615 tvout->debugfs_registered = true;
616 return 0;
617}
618
619static void sti_tvout_early_unregister(struct drm_encoder *encoder)
620{
621 struct sti_tvout *tvout = to_sti_tvout(encoder);
622
623 if (!tvout->debugfs_registered)
624 return;
625
626 tvout->debugfs_registered = false;
627}
628
629static const struct drm_encoder_funcs sti_tvout_encoder_funcs = {
630 .destroy = sti_tvout_encoder_destroy,
631 .late_register = sti_tvout_late_register,
632 .early_unregister = sti_tvout_early_unregister,
633};
634
635static void sti_dvo_encoder_enable(struct drm_encoder *encoder)
636{
637 struct sti_tvout *tvout = to_sti_tvout(encoder);
638
639 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
640
641 tvout_dvo_start(tvout, sti_crtc_is_main(encoder->crtc));
642}
643
644static void sti_dvo_encoder_disable(struct drm_encoder *encoder)
645{
646 struct sti_tvout *tvout = to_sti_tvout(encoder);
647
648
649 tvout_write(tvout, 0x0, TVO_VIP_DVO);
650}
651
652static const struct drm_encoder_helper_funcs sti_dvo_encoder_helper_funcs = {
653 .dpms = sti_tvout_encoder_dpms,
654 .mode_set = sti_tvout_encoder_mode_set,
655 .enable = sti_dvo_encoder_enable,
656 .disable = sti_dvo_encoder_disable,
657};
658
659static struct drm_encoder *
660sti_tvout_create_dvo_encoder(struct drm_device *dev,
661 struct sti_tvout *tvout)
662{
663 struct sti_tvout_encoder *encoder;
664 struct drm_encoder *drm_encoder;
665
666 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
667 if (!encoder)
668 return NULL;
669
670 encoder->tvout = tvout;
671
672 drm_encoder = (struct drm_encoder *)encoder;
673
674 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
675 drm_encoder->possible_clones = 1 << 0;
676
677 drm_encoder_init(dev, drm_encoder,
678 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_LVDS,
679 NULL);
680
681 drm_encoder_helper_add(drm_encoder, &sti_dvo_encoder_helper_funcs);
682
683 return drm_encoder;
684}
685
686static void sti_hda_encoder_enable(struct drm_encoder *encoder)
687{
688 struct sti_tvout *tvout = to_sti_tvout(encoder);
689
690 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
691
692 tvout_hda_start(tvout, sti_crtc_is_main(encoder->crtc));
693}
694
695static void sti_hda_encoder_disable(struct drm_encoder *encoder)
696{
697 struct sti_tvout *tvout = to_sti_tvout(encoder);
698
699
700 tvout_write(tvout, 0x0, TVO_VIP_HDF);
701
702
703 tvout_write(tvout, 1, TVO_HD_DAC_CFG_OFF);
704}
705
706static const struct drm_encoder_helper_funcs sti_hda_encoder_helper_funcs = {
707 .dpms = sti_tvout_encoder_dpms,
708 .mode_set = sti_tvout_encoder_mode_set,
709 .commit = sti_hda_encoder_enable,
710 .disable = sti_hda_encoder_disable,
711};
712
713static struct drm_encoder *sti_tvout_create_hda_encoder(struct drm_device *dev,
714 struct sti_tvout *tvout)
715{
716 struct sti_tvout_encoder *encoder;
717 struct drm_encoder *drm_encoder;
718
719 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
720 if (!encoder)
721 return NULL;
722
723 encoder->tvout = tvout;
724
725 drm_encoder = (struct drm_encoder *) encoder;
726
727 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
728 drm_encoder->possible_clones = 1 << 0;
729
730 drm_encoder_init(dev, drm_encoder,
731 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_DAC, NULL);
732
733 drm_encoder_helper_add(drm_encoder, &sti_hda_encoder_helper_funcs);
734
735 return drm_encoder;
736}
737
738static void sti_hdmi_encoder_enable(struct drm_encoder *encoder)
739{
740 struct sti_tvout *tvout = to_sti_tvout(encoder);
741
742 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
743
744 tvout_hdmi_start(tvout, sti_crtc_is_main(encoder->crtc));
745}
746
747static void sti_hdmi_encoder_disable(struct drm_encoder *encoder)
748{
749 struct sti_tvout *tvout = to_sti_tvout(encoder);
750
751
752 tvout_write(tvout, 0x0, TVO_VIP_HDMI);
753}
754
755static const struct drm_encoder_helper_funcs sti_hdmi_encoder_helper_funcs = {
756 .dpms = sti_tvout_encoder_dpms,
757 .mode_set = sti_tvout_encoder_mode_set,
758 .commit = sti_hdmi_encoder_enable,
759 .disable = sti_hdmi_encoder_disable,
760};
761
762static struct drm_encoder *sti_tvout_create_hdmi_encoder(struct drm_device *dev,
763 struct sti_tvout *tvout)
764{
765 struct sti_tvout_encoder *encoder;
766 struct drm_encoder *drm_encoder;
767
768 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
769 if (!encoder)
770 return NULL;
771
772 encoder->tvout = tvout;
773
774 drm_encoder = (struct drm_encoder *) encoder;
775
776 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
777 drm_encoder->possible_clones = 1 << 1;
778
779 drm_encoder_init(dev, drm_encoder,
780 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_TMDS, NULL);
781
782 drm_encoder_helper_add(drm_encoder, &sti_hdmi_encoder_helper_funcs);
783
784 return drm_encoder;
785}
786
787static void sti_tvout_create_encoders(struct drm_device *dev,
788 struct sti_tvout *tvout)
789{
790 tvout->hdmi = sti_tvout_create_hdmi_encoder(dev, tvout);
791 tvout->hda = sti_tvout_create_hda_encoder(dev, tvout);
792 tvout->dvo = sti_tvout_create_dvo_encoder(dev, tvout);
793}
794
795static void sti_tvout_destroy_encoders(struct sti_tvout *tvout)
796{
797 if (tvout->hdmi)
798 drm_encoder_cleanup(tvout->hdmi);
799 tvout->hdmi = NULL;
800
801 if (tvout->hda)
802 drm_encoder_cleanup(tvout->hda);
803 tvout->hda = NULL;
804
805 if (tvout->dvo)
806 drm_encoder_cleanup(tvout->dvo);
807 tvout->dvo = NULL;
808}
809
810static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
811{
812 struct sti_tvout *tvout = dev_get_drvdata(dev);
813 struct drm_device *drm_dev = data;
814
815 tvout->drm_dev = drm_dev;
816
817 sti_tvout_create_encoders(drm_dev, tvout);
818
819 return 0;
820}
821
822static void sti_tvout_unbind(struct device *dev, struct device *master,
823 void *data)
824{
825 struct sti_tvout *tvout = dev_get_drvdata(dev);
826
827 sti_tvout_destroy_encoders(tvout);
828}
829
830static const struct component_ops sti_tvout_ops = {
831 .bind = sti_tvout_bind,
832 .unbind = sti_tvout_unbind,
833};
834
835static int sti_tvout_probe(struct platform_device *pdev)
836{
837 struct device *dev = &pdev->dev;
838 struct device_node *node = dev->of_node;
839 struct sti_tvout *tvout;
840 struct resource *res;
841
842 DRM_INFO("%s\n", __func__);
843
844 if (!node)
845 return -ENODEV;
846
847 tvout = devm_kzalloc(dev, sizeof(*tvout), GFP_KERNEL);
848 if (!tvout)
849 return -ENOMEM;
850
851 tvout->dev = dev;
852
853
854 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tvout-reg");
855 if (!res) {
856 DRM_ERROR("Invalid glue resource\n");
857 return -ENOMEM;
858 }
859 tvout->regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
860 if (!tvout->regs)
861 return -ENOMEM;
862
863
864 tvout->reset = devm_reset_control_get(dev, "tvout");
865
866 if (!IS_ERR(tvout->reset))
867 reset_control_deassert(tvout->reset);
868
869 platform_set_drvdata(pdev, tvout);
870
871 return component_add(dev, &sti_tvout_ops);
872}
873
874static int sti_tvout_remove(struct platform_device *pdev)
875{
876 component_del(&pdev->dev, &sti_tvout_ops);
877 return 0;
878}
879
880static const struct of_device_id tvout_of_match[] = {
881 { .compatible = "st,stih407-tvout", },
882 { }
883};
884MODULE_DEVICE_TABLE(of, tvout_of_match);
885
886struct platform_driver sti_tvout_driver = {
887 .driver = {
888 .name = "sti-tvout",
889 .owner = THIS_MODULE,
890 .of_match_table = tvout_of_match,
891 },
892 .probe = sti_tvout_probe,
893 .remove = sti_tvout_remove,
894};
895
896MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
897MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
898MODULE_LICENSE("GPL");
899
