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8
9#include <linux/clk.h>
10#include <linux/component.h>
11#include <linux/module.h>
12#include <linux/of_platform.h>
13#include <linux/platform_device.h>
14#include <linux/reset.h>
15#include <linux/seq_file.h>
16
17#include <drm/drmP.h>
18#include <drm/drm_crtc_helper.h>
19
20#include "sti_crtc.h"
21#include "sti_drv.h"
22#include "sti_vtg.h"
23
24
25#define TVO_CSC_MAIN_M0 0x000
26#define TVO_CSC_MAIN_M1 0x004
27#define TVO_CSC_MAIN_M2 0x008
28#define TVO_CSC_MAIN_M3 0x00c
29#define TVO_CSC_MAIN_M4 0x010
30#define TVO_CSC_MAIN_M5 0x014
31#define TVO_CSC_MAIN_M6 0x018
32#define TVO_CSC_MAIN_M7 0x01c
33#define TVO_MAIN_IN_VID_FORMAT 0x030
34#define TVO_CSC_AUX_M0 0x100
35#define TVO_CSC_AUX_M1 0x104
36#define TVO_CSC_AUX_M2 0x108
37#define TVO_CSC_AUX_M3 0x10c
38#define TVO_CSC_AUX_M4 0x110
39#define TVO_CSC_AUX_M5 0x114
40#define TVO_CSC_AUX_M6 0x118
41#define TVO_CSC_AUX_M7 0x11c
42#define TVO_AUX_IN_VID_FORMAT 0x130
43#define TVO_VIP_HDF 0x400
44#define TVO_HD_SYNC_SEL 0x418
45#define TVO_HD_DAC_CFG_OFF 0x420
46#define TVO_VIP_HDMI 0x500
47#define TVO_HDMI_FORCE_COLOR_0 0x504
48#define TVO_HDMI_FORCE_COLOR_1 0x508
49#define TVO_HDMI_CLIP_VALUE_B_CB 0x50c
50#define TVO_HDMI_CLIP_VALUE_Y_G 0x510
51#define TVO_HDMI_CLIP_VALUE_R_CR 0x514
52#define TVO_HDMI_SYNC_SEL 0x518
53#define TVO_HDMI_DFV_OBS 0x540
54#define TVO_VIP_DVO 0x600
55#define TVO_DVO_SYNC_SEL 0x618
56#define TVO_DVO_CONFIG 0x620
57
58#define TVO_IN_FMT_SIGNED BIT(0)
59#define TVO_SYNC_EXT BIT(4)
60
61#define TVO_VIP_REORDER_R_SHIFT 24
62#define TVO_VIP_REORDER_G_SHIFT 20
63#define TVO_VIP_REORDER_B_SHIFT 16
64#define TVO_VIP_REORDER_MASK 0x3
65#define TVO_VIP_REORDER_Y_G_SEL 0
66#define TVO_VIP_REORDER_CB_B_SEL 1
67#define TVO_VIP_REORDER_CR_R_SEL 2
68
69#define TVO_VIP_CLIP_SHIFT 8
70#define TVO_VIP_CLIP_MASK 0x7
71#define TVO_VIP_CLIP_DISABLED 0
72#define TVO_VIP_CLIP_EAV_SAV 1
73#define TVO_VIP_CLIP_LIMITED_RANGE_RGB_Y 2
74#define TVO_VIP_CLIP_LIMITED_RANGE_CB_CR 3
75#define TVO_VIP_CLIP_PROG_RANGE 4
76
77#define TVO_VIP_RND_SHIFT 4
78#define TVO_VIP_RND_MASK 0x3
79#define TVO_VIP_RND_8BIT_ROUNDED 0
80#define TVO_VIP_RND_10BIT_ROUNDED 1
81#define TVO_VIP_RND_12BIT_ROUNDED 2
82
83#define TVO_VIP_SEL_INPUT_MASK 0xf
84#define TVO_VIP_SEL_INPUT_MAIN 0x0
85#define TVO_VIP_SEL_INPUT_AUX 0x8
86#define TVO_VIP_SEL_INPUT_FORCE_COLOR 0xf
87#define TVO_VIP_SEL_INPUT_BYPASS_MASK 0x1
88#define TVO_VIP_SEL_INPUT_BYPASSED 1
89
90#define TVO_SYNC_MAIN_VTG_SET_REF 0x00
91#define TVO_SYNC_AUX_VTG_SET_REF 0x10
92
93#define TVO_SYNC_HD_DCS_SHIFT 8
94
95#define TVO_SYNC_DVO_PAD_HSYNC_SHIFT 8
96#define TVO_SYNC_DVO_PAD_VSYNC_SHIFT 16
97
98#define ENCODER_CRTC_MASK (BIT(0) | BIT(1))
99
100#define TVO_MIN_HD_HEIGHT 720
101
102
103enum sti_tvout_video_out_type {
104 STI_TVOUT_VIDEO_OUT_RGB,
105 STI_TVOUT_VIDEO_OUT_YUV,
106};
107
108struct sti_tvout {
109 struct device *dev;
110 struct drm_device *drm_dev;
111 void __iomem *regs;
112 struct reset_control *reset;
113 struct drm_encoder *hdmi;
114 struct drm_encoder *hda;
115 struct drm_encoder *dvo;
116 bool debugfs_registered;
117};
118
119struct sti_tvout_encoder {
120 struct drm_encoder encoder;
121 struct sti_tvout *tvout;
122};
123
124#define to_sti_tvout_encoder(x) \
125 container_of(x, struct sti_tvout_encoder, encoder)
126
127#define to_sti_tvout(x) to_sti_tvout_encoder(x)->tvout
128
129
130static const u32 rgb_to_ycbcr_601[8] = {
131 0xF927082E, 0x04C9FEAB, 0x01D30964, 0xFA95FD3D,
132 0x0000082E, 0x00002000, 0x00002000, 0x00000000
133};
134
135
136static const u32 rgb_to_ycbcr_709[8] = {
137 0xF891082F, 0x0367FF40, 0x01280B71, 0xF9B1FE20,
138 0x0000082F, 0x00002000, 0x00002000, 0x00000000
139};
140
141static u32 tvout_read(struct sti_tvout *tvout, int offset)
142{
143 return readl(tvout->regs + offset);
144}
145
146static void tvout_write(struct sti_tvout *tvout, u32 val, int offset)
147{
148 writel(val, tvout->regs + offset);
149}
150
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157
158
159
160static void tvout_vip_set_color_order(struct sti_tvout *tvout, int reg,
161 u32 cr_r, u32 y_g, u32 cb_b)
162{
163 u32 val = tvout_read(tvout, reg);
164
165 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT);
166 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT);
167 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT);
168 val |= cr_r << TVO_VIP_REORDER_R_SHIFT;
169 val |= y_g << TVO_VIP_REORDER_G_SHIFT;
170 val |= cb_b << TVO_VIP_REORDER_B_SHIFT;
171
172 tvout_write(tvout, val, reg);
173}
174
175
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178
179
180
181
182static void tvout_vip_set_clip_mode(struct sti_tvout *tvout, int reg, u32 range)
183{
184 u32 val = tvout_read(tvout, reg);
185
186 val &= ~(TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT);
187 val |= range << TVO_VIP_CLIP_SHIFT;
188 tvout_write(tvout, val, reg);
189}
190
191
192
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194
195
196
197
198static void tvout_vip_set_rnd(struct sti_tvout *tvout, int reg, u32 rnd)
199{
200 u32 val = tvout_read(tvout, reg);
201
202 val &= ~(TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT);
203 val |= rnd << TVO_VIP_RND_SHIFT;
204 tvout_write(tvout, val, reg);
205}
206
207
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209
210
211
212
213
214
215static void tvout_vip_set_sel_input(struct sti_tvout *tvout,
216 int reg,
217 bool main_path,
218 enum sti_tvout_video_out_type video_out)
219{
220 u32 sel_input;
221 u32 val = tvout_read(tvout, reg);
222
223 if (main_path)
224 sel_input = TVO_VIP_SEL_INPUT_MAIN;
225 else
226 sel_input = TVO_VIP_SEL_INPUT_AUX;
227
228 switch (video_out) {
229 case STI_TVOUT_VIDEO_OUT_RGB:
230 sel_input |= TVO_VIP_SEL_INPUT_BYPASSED;
231 break;
232 case STI_TVOUT_VIDEO_OUT_YUV:
233 sel_input &= ~TVO_VIP_SEL_INPUT_BYPASSED;
234 break;
235 }
236
237
238 sel_input = sel_input ^ TVO_VIP_SEL_INPUT_BYPASS_MASK;
239
240 val &= ~TVO_VIP_SEL_INPUT_MASK;
241 val |= sel_input;
242 tvout_write(tvout, val, reg);
243}
244
245
246
247
248
249
250
251
252static void tvout_vip_set_in_vid_fmt(struct sti_tvout *tvout,
253 int reg, u32 in_vid_fmt)
254{
255 u32 val = tvout_read(tvout, reg);
256
257 val &= ~TVO_IN_FMT_SIGNED;
258 val |= in_vid_fmt;
259 tvout_write(tvout, val, reg);
260}
261
262
263
264
265
266
267
268static void tvout_preformatter_set_matrix(struct sti_tvout *tvout,
269 struct drm_display_mode *mode)
270{
271 unsigned int i;
272 const u32 *pf_matrix;
273
274 if (mode->vdisplay >= TVO_MIN_HD_HEIGHT)
275 pf_matrix = rgb_to_ycbcr_709;
276 else
277 pf_matrix = rgb_to_ycbcr_601;
278
279 for (i = 0; i < 8; i++) {
280 tvout_write(tvout, *(pf_matrix + i),
281 TVO_CSC_MAIN_M0 + (i * 4));
282 tvout_write(tvout, *(pf_matrix + i),
283 TVO_CSC_AUX_M0 + (i * 4));
284 }
285}
286
287
288
289
290
291
292
293
294static void tvout_dvo_start(struct sti_tvout *tvout, bool main_path)
295{
296 u32 tvo_in_vid_format;
297 int val, tmp;
298
299 dev_dbg(tvout->dev, "%s\n", __func__);
300
301 if (main_path) {
302 DRM_DEBUG_DRIVER("main vip for DVO\n");
303
304 tmp = TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_DVO;
305 val = tmp << TVO_SYNC_DVO_PAD_VSYNC_SHIFT;
306 val |= tmp << TVO_SYNC_DVO_PAD_HSYNC_SHIFT;
307 val |= tmp;
308 tvout_write(tvout, val, TVO_DVO_SYNC_SEL);
309 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
310 } else {
311 DRM_DEBUG_DRIVER("aux vip for DVO\n");
312
313 tmp = TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_DVO;
314 val = tmp << TVO_SYNC_DVO_PAD_VSYNC_SHIFT;
315 val |= tmp << TVO_SYNC_DVO_PAD_HSYNC_SHIFT;
316 val |= tmp;
317 tvout_write(tvout, val, TVO_DVO_SYNC_SEL);
318 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
319 }
320
321
322 tvout_vip_set_color_order(tvout, TVO_VIP_DVO,
323 TVO_VIP_REORDER_CR_R_SEL,
324 TVO_VIP_REORDER_Y_G_SEL,
325 TVO_VIP_REORDER_CB_B_SEL);
326
327
328 tvout_vip_set_clip_mode(tvout, TVO_VIP_DVO, TVO_VIP_CLIP_DISABLED);
329
330
331 tvout_vip_set_rnd(tvout, TVO_VIP_DVO, TVO_VIP_RND_8BIT_ROUNDED);
332
333
334 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format, TVO_IN_FMT_SIGNED);
335
336
337 tvout_vip_set_sel_input(tvout, TVO_VIP_DVO, main_path,
338 STI_TVOUT_VIDEO_OUT_RGB);
339}
340
341
342
343
344
345
346
347
348static void tvout_hdmi_start(struct sti_tvout *tvout, bool main_path)
349{
350 u32 tvo_in_vid_format;
351
352 dev_dbg(tvout->dev, "%s\n", __func__);
353
354 if (main_path) {
355 DRM_DEBUG_DRIVER("main vip for hdmi\n");
356
357 tvout_write(tvout,
358 TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDMI,
359 TVO_HDMI_SYNC_SEL);
360 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
361 } else {
362 DRM_DEBUG_DRIVER("aux vip for hdmi\n");
363
364 tvout_write(tvout,
365 TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDMI,
366 TVO_HDMI_SYNC_SEL);
367 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
368 }
369
370
371 tvout_vip_set_color_order(tvout, TVO_VIP_HDMI,
372 TVO_VIP_REORDER_CR_R_SEL,
373 TVO_VIP_REORDER_Y_G_SEL,
374 TVO_VIP_REORDER_CB_B_SEL);
375
376
377 tvout_vip_set_clip_mode(tvout, TVO_VIP_HDMI, TVO_VIP_CLIP_DISABLED);
378
379
380 tvout_vip_set_rnd(tvout, TVO_VIP_HDMI, TVO_VIP_RND_8BIT_ROUNDED);
381
382
383 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format, TVO_IN_FMT_SIGNED);
384
385
386 tvout_vip_set_sel_input(tvout, TVO_VIP_HDMI, main_path,
387 STI_TVOUT_VIDEO_OUT_RGB);
388}
389
390
391
392
393
394
395
396
397static void tvout_hda_start(struct sti_tvout *tvout, bool main_path)
398{
399 u32 tvo_in_vid_format;
400 int val;
401
402 dev_dbg(tvout->dev, "%s\n", __func__);
403
404 if (main_path) {
405 DRM_DEBUG_DRIVER("main vip for HDF\n");
406
407 val = TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDDCS;
408 val = val << TVO_SYNC_HD_DCS_SHIFT;
409 val |= TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDF;
410 tvout_write(tvout, val, TVO_HD_SYNC_SEL);
411 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
412 } else {
413 DRM_DEBUG_DRIVER("aux vip for HDF\n");
414
415 val = TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDDCS;
416 val = val << TVO_SYNC_HD_DCS_SHIFT;
417 val |= TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDF;
418 tvout_write(tvout, val, TVO_HD_SYNC_SEL);
419 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
420 }
421
422
423 tvout_vip_set_color_order(tvout, TVO_VIP_HDF,
424 TVO_VIP_REORDER_CR_R_SEL,
425 TVO_VIP_REORDER_Y_G_SEL,
426 TVO_VIP_REORDER_CB_B_SEL);
427
428
429 tvout_vip_set_clip_mode(tvout, TVO_VIP_HDF, TVO_VIP_CLIP_DISABLED);
430
431
432 tvout_vip_set_rnd(tvout, TVO_VIP_HDF, TVO_VIP_RND_10BIT_ROUNDED);
433
434
435 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format, TVO_IN_FMT_SIGNED);
436
437
438 tvout_vip_set_sel_input(tvout, TVO_VIP_HDF, main_path,
439 STI_TVOUT_VIDEO_OUT_YUV);
440
441
442 tvout_write(tvout, 0, TVO_HD_DAC_CFG_OFF);
443}
444
445#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
446 readl(tvout->regs + reg))
447
448static void tvout_dbg_vip(struct seq_file *s, int val)
449{
450 int r, g, b, tmp, mask;
451 char *const reorder[] = {"Y_G", "Cb_B", "Cr_R"};
452 char *const clipping[] = {"No", "EAV/SAV", "Limited range RGB/Y",
453 "Limited range Cb/Cr", "decided by register"};
454 char *const round[] = {"8-bit", "10-bit", "12-bit"};
455 char *const input_sel[] = {"Main (color matrix enabled)",
456 "Main (color matrix by-passed)",
457 "", "", "", "", "", "",
458 "Aux (color matrix enabled)",
459 "Aux (color matrix by-passed)",
460 "", "", "", "", "", "Force value"};
461
462 seq_puts(s, "\t");
463 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT;
464 r = (val & mask) >> TVO_VIP_REORDER_R_SHIFT;
465 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT;
466 g = (val & mask) >> TVO_VIP_REORDER_G_SHIFT;
467 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT;
468 b = (val & mask) >> TVO_VIP_REORDER_B_SHIFT;
469 seq_printf(s, "%-24s %s->%s %s->%s %s->%s\n", "Reorder:",
470 reorder[r], reorder[TVO_VIP_REORDER_CR_R_SEL],
471 reorder[g], reorder[TVO_VIP_REORDER_Y_G_SEL],
472 reorder[b], reorder[TVO_VIP_REORDER_CB_B_SEL]);
473 seq_puts(s, "\t\t\t\t\t");
474 mask = TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT;
475 tmp = (val & mask) >> TVO_VIP_CLIP_SHIFT;
476 seq_printf(s, "%-24s %s\n", "Clipping:", clipping[tmp]);
477 seq_puts(s, "\t\t\t\t\t");
478 mask = TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT;
479 tmp = (val & mask) >> TVO_VIP_RND_SHIFT;
480 seq_printf(s, "%-24s input data rounded to %s per component\n",
481 "Round:", round[tmp]);
482 seq_puts(s, "\t\t\t\t\t");
483 tmp = (val & TVO_VIP_SEL_INPUT_MASK);
484 seq_printf(s, "%-24s %s", "Input selection:", input_sel[tmp]);
485}
486
487static void tvout_dbg_hd_dac_cfg(struct seq_file *s, int val)
488{
489 seq_printf(s, "\t%-24s %s", "HD DAC:",
490 val & 1 ? "disabled" : "enabled");
491}
492
493static int tvout_dbg_show(struct seq_file *s, void *data)
494{
495 struct drm_info_node *node = s->private;
496 struct sti_tvout *tvout = (struct sti_tvout *)node->info_ent->data;
497 struct drm_crtc *crtc;
498
499 seq_printf(s, "TVOUT: (vaddr = 0x%p)", tvout->regs);
500
501 seq_puts(s, "\n\n HDMI encoder: ");
502 crtc = tvout->hdmi->crtc;
503 if (crtc) {
504 seq_printf(s, "connected to %s path",
505 sti_crtc_is_main(crtc) ? "main" : "aux");
506 DBGFS_DUMP(TVO_HDMI_SYNC_SEL);
507 DBGFS_DUMP(TVO_VIP_HDMI);
508 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDMI));
509 } else {
510 seq_puts(s, "disabled");
511 }
512
513 seq_puts(s, "\n\n DVO encoder: ");
514 crtc = tvout->dvo->crtc;
515 if (crtc) {
516 seq_printf(s, "connected to %s path",
517 sti_crtc_is_main(crtc) ? "main" : "aux");
518 DBGFS_DUMP(TVO_DVO_SYNC_SEL);
519 DBGFS_DUMP(TVO_DVO_CONFIG);
520 DBGFS_DUMP(TVO_VIP_DVO);
521 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_DVO));
522 } else {
523 seq_puts(s, "disabled");
524 }
525
526 seq_puts(s, "\n\n HDA encoder: ");
527 crtc = tvout->hda->crtc;
528 if (crtc) {
529 seq_printf(s, "connected to %s path",
530 sti_crtc_is_main(crtc) ? "main" : "aux");
531 DBGFS_DUMP(TVO_HD_SYNC_SEL);
532 DBGFS_DUMP(TVO_HD_DAC_CFG_OFF);
533 tvout_dbg_hd_dac_cfg(s,
534 readl(tvout->regs + TVO_HD_DAC_CFG_OFF));
535 DBGFS_DUMP(TVO_VIP_HDF);
536 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDF));
537 } else {
538 seq_puts(s, "disabled");
539 }
540
541 seq_puts(s, "\n\n main path configuration");
542 DBGFS_DUMP(TVO_CSC_MAIN_M0);
543 DBGFS_DUMP(TVO_CSC_MAIN_M1);
544 DBGFS_DUMP(TVO_CSC_MAIN_M2);
545 DBGFS_DUMP(TVO_CSC_MAIN_M3);
546 DBGFS_DUMP(TVO_CSC_MAIN_M4);
547 DBGFS_DUMP(TVO_CSC_MAIN_M5);
548 DBGFS_DUMP(TVO_CSC_MAIN_M6);
549 DBGFS_DUMP(TVO_CSC_MAIN_M7);
550 DBGFS_DUMP(TVO_MAIN_IN_VID_FORMAT);
551
552 seq_puts(s, "\n\n auxiliary path configuration");
553 DBGFS_DUMP(TVO_CSC_AUX_M0);
554 DBGFS_DUMP(TVO_CSC_AUX_M2);
555 DBGFS_DUMP(TVO_CSC_AUX_M3);
556 DBGFS_DUMP(TVO_CSC_AUX_M4);
557 DBGFS_DUMP(TVO_CSC_AUX_M5);
558 DBGFS_DUMP(TVO_CSC_AUX_M6);
559 DBGFS_DUMP(TVO_CSC_AUX_M7);
560 DBGFS_DUMP(TVO_AUX_IN_VID_FORMAT);
561 seq_puts(s, "\n");
562
563 return 0;
564}
565
566static struct drm_info_list tvout_debugfs_files[] = {
567 { "tvout", tvout_dbg_show, 0, NULL },
568};
569
570static int tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
571{
572 unsigned int i;
573
574 for (i = 0; i < ARRAY_SIZE(tvout_debugfs_files); i++)
575 tvout_debugfs_files[i].data = tvout;
576
577 return drm_debugfs_create_files(tvout_debugfs_files,
578 ARRAY_SIZE(tvout_debugfs_files),
579 minor->debugfs_root, minor);
580}
581
582static void sti_tvout_encoder_dpms(struct drm_encoder *encoder, int mode)
583{
584}
585
586static void sti_tvout_encoder_mode_set(struct drm_encoder *encoder,
587 struct drm_display_mode *mode,
588 struct drm_display_mode *adjusted_mode)
589{
590}
591
592static void sti_tvout_encoder_destroy(struct drm_encoder *encoder)
593{
594 struct sti_tvout_encoder *sti_encoder = to_sti_tvout_encoder(encoder);
595
596 drm_encoder_cleanup(encoder);
597 kfree(sti_encoder);
598}
599
600static int sti_tvout_late_register(struct drm_encoder *encoder)
601{
602 struct sti_tvout *tvout = to_sti_tvout(encoder);
603 int ret;
604
605 if (tvout->debugfs_registered)
606 return 0;
607
608 ret = tvout_debugfs_init(tvout, encoder->dev->primary);
609 if (ret)
610 return ret;
611
612 tvout->debugfs_registered = true;
613 return 0;
614}
615
616static void sti_tvout_early_unregister(struct drm_encoder *encoder)
617{
618 struct sti_tvout *tvout = to_sti_tvout(encoder);
619
620 if (!tvout->debugfs_registered)
621 return;
622
623 tvout->debugfs_registered = false;
624}
625
626static const struct drm_encoder_funcs sti_tvout_encoder_funcs = {
627 .destroy = sti_tvout_encoder_destroy,
628 .late_register = sti_tvout_late_register,
629 .early_unregister = sti_tvout_early_unregister,
630};
631
632static void sti_dvo_encoder_enable(struct drm_encoder *encoder)
633{
634 struct sti_tvout *tvout = to_sti_tvout(encoder);
635
636 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
637
638 tvout_dvo_start(tvout, sti_crtc_is_main(encoder->crtc));
639}
640
641static void sti_dvo_encoder_disable(struct drm_encoder *encoder)
642{
643 struct sti_tvout *tvout = to_sti_tvout(encoder);
644
645
646 tvout_write(tvout, 0x0, TVO_VIP_DVO);
647}
648
649static const struct drm_encoder_helper_funcs sti_dvo_encoder_helper_funcs = {
650 .dpms = sti_tvout_encoder_dpms,
651 .mode_set = sti_tvout_encoder_mode_set,
652 .enable = sti_dvo_encoder_enable,
653 .disable = sti_dvo_encoder_disable,
654};
655
656static struct drm_encoder *
657sti_tvout_create_dvo_encoder(struct drm_device *dev,
658 struct sti_tvout *tvout)
659{
660 struct sti_tvout_encoder *encoder;
661 struct drm_encoder *drm_encoder;
662
663 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
664 if (!encoder)
665 return NULL;
666
667 encoder->tvout = tvout;
668
669 drm_encoder = (struct drm_encoder *)encoder;
670
671 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
672 drm_encoder->possible_clones = 1 << 0;
673
674 drm_encoder_init(dev, drm_encoder,
675 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_LVDS,
676 NULL);
677
678 drm_encoder_helper_add(drm_encoder, &sti_dvo_encoder_helper_funcs);
679
680 return drm_encoder;
681}
682
683static void sti_hda_encoder_enable(struct drm_encoder *encoder)
684{
685 struct sti_tvout *tvout = to_sti_tvout(encoder);
686
687 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
688
689 tvout_hda_start(tvout, sti_crtc_is_main(encoder->crtc));
690}
691
692static void sti_hda_encoder_disable(struct drm_encoder *encoder)
693{
694 struct sti_tvout *tvout = to_sti_tvout(encoder);
695
696
697 tvout_write(tvout, 0x0, TVO_VIP_HDF);
698
699
700 tvout_write(tvout, 1, TVO_HD_DAC_CFG_OFF);
701}
702
703static const struct drm_encoder_helper_funcs sti_hda_encoder_helper_funcs = {
704 .dpms = sti_tvout_encoder_dpms,
705 .mode_set = sti_tvout_encoder_mode_set,
706 .commit = sti_hda_encoder_enable,
707 .disable = sti_hda_encoder_disable,
708};
709
710static struct drm_encoder *sti_tvout_create_hda_encoder(struct drm_device *dev,
711 struct sti_tvout *tvout)
712{
713 struct sti_tvout_encoder *encoder;
714 struct drm_encoder *drm_encoder;
715
716 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
717 if (!encoder)
718 return NULL;
719
720 encoder->tvout = tvout;
721
722 drm_encoder = (struct drm_encoder *) encoder;
723
724 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
725 drm_encoder->possible_clones = 1 << 0;
726
727 drm_encoder_init(dev, drm_encoder,
728 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_DAC, NULL);
729
730 drm_encoder_helper_add(drm_encoder, &sti_hda_encoder_helper_funcs);
731
732 return drm_encoder;
733}
734
735static void sti_hdmi_encoder_enable(struct drm_encoder *encoder)
736{
737 struct sti_tvout *tvout = to_sti_tvout(encoder);
738
739 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
740
741 tvout_hdmi_start(tvout, sti_crtc_is_main(encoder->crtc));
742}
743
744static void sti_hdmi_encoder_disable(struct drm_encoder *encoder)
745{
746 struct sti_tvout *tvout = to_sti_tvout(encoder);
747
748
749 tvout_write(tvout, 0x0, TVO_VIP_HDMI);
750}
751
752static const struct drm_encoder_helper_funcs sti_hdmi_encoder_helper_funcs = {
753 .dpms = sti_tvout_encoder_dpms,
754 .mode_set = sti_tvout_encoder_mode_set,
755 .commit = sti_hdmi_encoder_enable,
756 .disable = sti_hdmi_encoder_disable,
757};
758
759static struct drm_encoder *sti_tvout_create_hdmi_encoder(struct drm_device *dev,
760 struct sti_tvout *tvout)
761{
762 struct sti_tvout_encoder *encoder;
763 struct drm_encoder *drm_encoder;
764
765 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
766 if (!encoder)
767 return NULL;
768
769 encoder->tvout = tvout;
770
771 drm_encoder = (struct drm_encoder *) encoder;
772
773 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
774 drm_encoder->possible_clones = 1 << 1;
775
776 drm_encoder_init(dev, drm_encoder,
777 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_TMDS, NULL);
778
779 drm_encoder_helper_add(drm_encoder, &sti_hdmi_encoder_helper_funcs);
780
781 return drm_encoder;
782}
783
784static void sti_tvout_create_encoders(struct drm_device *dev,
785 struct sti_tvout *tvout)
786{
787 tvout->hdmi = sti_tvout_create_hdmi_encoder(dev, tvout);
788 tvout->hda = sti_tvout_create_hda_encoder(dev, tvout);
789 tvout->dvo = sti_tvout_create_dvo_encoder(dev, tvout);
790}
791
792static void sti_tvout_destroy_encoders(struct sti_tvout *tvout)
793{
794 if (tvout->hdmi)
795 drm_encoder_cleanup(tvout->hdmi);
796 tvout->hdmi = NULL;
797
798 if (tvout->hda)
799 drm_encoder_cleanup(tvout->hda);
800 tvout->hda = NULL;
801
802 if (tvout->dvo)
803 drm_encoder_cleanup(tvout->dvo);
804 tvout->dvo = NULL;
805}
806
807static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
808{
809 struct sti_tvout *tvout = dev_get_drvdata(dev);
810 struct drm_device *drm_dev = data;
811
812 tvout->drm_dev = drm_dev;
813
814 sti_tvout_create_encoders(drm_dev, tvout);
815
816 return 0;
817}
818
819static void sti_tvout_unbind(struct device *dev, struct device *master,
820 void *data)
821{
822 struct sti_tvout *tvout = dev_get_drvdata(dev);
823
824 sti_tvout_destroy_encoders(tvout);
825}
826
827static const struct component_ops sti_tvout_ops = {
828 .bind = sti_tvout_bind,
829 .unbind = sti_tvout_unbind,
830};
831
832static int sti_tvout_probe(struct platform_device *pdev)
833{
834 struct device *dev = &pdev->dev;
835 struct device_node *node = dev->of_node;
836 struct sti_tvout *tvout;
837 struct resource *res;
838
839 DRM_INFO("%s\n", __func__);
840
841 if (!node)
842 return -ENODEV;
843
844 tvout = devm_kzalloc(dev, sizeof(*tvout), GFP_KERNEL);
845 if (!tvout)
846 return -ENOMEM;
847
848 tvout->dev = dev;
849
850
851 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tvout-reg");
852 if (!res) {
853 DRM_ERROR("Invalid glue resource\n");
854 return -ENOMEM;
855 }
856 tvout->regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
857 if (!tvout->regs)
858 return -ENOMEM;
859
860
861 tvout->reset = devm_reset_control_get(dev, "tvout");
862
863 if (!IS_ERR(tvout->reset))
864 reset_control_deassert(tvout->reset);
865
866 platform_set_drvdata(pdev, tvout);
867
868 return component_add(dev, &sti_tvout_ops);
869}
870
871static int sti_tvout_remove(struct platform_device *pdev)
872{
873 component_del(&pdev->dev, &sti_tvout_ops);
874 return 0;
875}
876
877static const struct of_device_id tvout_of_match[] = {
878 { .compatible = "st,stih407-tvout", },
879 { }
880};
881MODULE_DEVICE_TABLE(of, tvout_of_match);
882
883struct platform_driver sti_tvout_driver = {
884 .driver = {
885 .name = "sti-tvout",
886 .owner = THIS_MODULE,
887 .of_match_table = tvout_of_match,
888 },
889 .probe = sti_tvout_probe,
890 .remove = sti_tvout_remove,
891};
892
893MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
894MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
895MODULE_LICENSE("GPL");
896
