2 * Copyright (C) STMicroelectronics SA 2014
3 * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
4 * Vincent Abriou <vincent.abriou@st.com>
5 * for STMicroelectronics.
6 * License terms: GNU General Public License (GPL), version 2
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>
18 #include <drm/drm_crtc_helper.h>
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
58 #define TVO_IN_FMT_SIGNED BIT(0)
59 #define TVO_SYNC_EXT BIT(4)
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
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
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
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
90 #define TVO_SYNC_MAIN_VTG_SET_REF 0x00
91 #define TVO_SYNC_AUX_VTG_SET_REF 0x10
93 #define TVO_SYNC_HD_DCS_SHIFT 8
95 #define TVO_SYNC_DVO_PAD_HSYNC_SHIFT 8
96 #define TVO_SYNC_DVO_PAD_VSYNC_SHIFT 16
98 #define ENCODER_CRTC_MASK (BIT(0) | BIT(1))
100 #define TVO_MIN_HD_HEIGHT 720
102 /* enum listing the supported output data format */
103 enum sti_tvout_video_out_type {
104 STI_TVOUT_VIDEO_OUT_RGB,
105 STI_TVOUT_VIDEO_OUT_YUV,
110 struct drm_device *drm_dev;
112 struct reset_control *reset;
113 struct drm_encoder *hdmi;
114 struct drm_encoder *hda;
115 struct drm_encoder *dvo;
116 bool debugfs_registered;
119 struct sti_tvout_encoder {
120 struct drm_encoder encoder;
121 struct sti_tvout *tvout;
124 #define to_sti_tvout_encoder(x) \
125 container_of(x, struct sti_tvout_encoder, encoder)
127 #define to_sti_tvout(x) to_sti_tvout_encoder(x)->tvout
129 /* preformatter conversion matrix */
130 static const u32 rgb_to_ycbcr_601[8] = {
131 0xF927082E, 0x04C9FEAB, 0x01D30964, 0xFA95FD3D,
132 0x0000082E, 0x00002000, 0x00002000, 0x00000000
135 /* 709 RGB to YCbCr */
136 static const u32 rgb_to_ycbcr_709[8] = {
137 0xF891082F, 0x0367FF40, 0x01280B71, 0xF9B1FE20,
138 0x0000082F, 0x00002000, 0x00002000, 0x00000000
141 static u32 tvout_read(struct sti_tvout *tvout, int offset)
143 return readl(tvout->regs + offset);
146 static void tvout_write(struct sti_tvout *tvout, u32 val, int offset)
148 writel(val, tvout->regs + offset);
152 * Set the clipping mode of a VIP
154 * @tvout: tvout structure
155 * @reg: register to set
160 static void tvout_vip_set_color_order(struct sti_tvout *tvout, int reg,
161 u32 cr_r, u32 y_g, u32 cb_b)
163 u32 val = tvout_read(tvout, reg);
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;
172 tvout_write(tvout, val, reg);
176 * Set the clipping mode of a VIP
178 * @tvout: tvout structure
179 * @reg: register to set
180 * @range: clipping range
182 static void tvout_vip_set_clip_mode(struct sti_tvout *tvout, int reg, u32 range)
184 u32 val = tvout_read(tvout, reg);
186 val &= ~(TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT);
187 val |= range << TVO_VIP_CLIP_SHIFT;
188 tvout_write(tvout, val, reg);
192 * Set the rounded value of a VIP
194 * @tvout: tvout structure
195 * @reg: register to set
196 * @rnd: rounded val per component
198 static void tvout_vip_set_rnd(struct sti_tvout *tvout, int reg, u32 rnd)
200 u32 val = tvout_read(tvout, reg);
202 val &= ~(TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT);
203 val |= rnd << TVO_VIP_RND_SHIFT;
204 tvout_write(tvout, val, reg);
208 * Select the VIP input
210 * @tvout: tvout structure
211 * @reg: register to set
212 * @main_path: main or auxiliary path
213 * @sel_input_logic_inverted: need to invert the logic
214 * @sel_input: selected_input (main/aux + conv)
216 static void tvout_vip_set_sel_input(struct sti_tvout *tvout,
219 bool sel_input_logic_inverted,
220 enum sti_tvout_video_out_type video_out)
223 u32 val = tvout_read(tvout, reg);
226 sel_input = TVO_VIP_SEL_INPUT_MAIN;
228 sel_input = TVO_VIP_SEL_INPUT_AUX;
231 case STI_TVOUT_VIDEO_OUT_RGB:
232 sel_input |= TVO_VIP_SEL_INPUT_BYPASSED;
234 case STI_TVOUT_VIDEO_OUT_YUV:
235 sel_input &= ~TVO_VIP_SEL_INPUT_BYPASSED;
239 /* on stih407 chip the sel_input bypass mode logic is inverted */
240 if (sel_input_logic_inverted)
241 sel_input = sel_input ^ TVO_VIP_SEL_INPUT_BYPASS_MASK;
243 val &= ~TVO_VIP_SEL_INPUT_MASK;
245 tvout_write(tvout, val, reg);
249 * Select the input video signed or unsigned
251 * @tvout: tvout structure
252 * @reg: register to set
253 * @in_vid_signed: used video input format
255 static void tvout_vip_set_in_vid_fmt(struct sti_tvout *tvout,
256 int reg, u32 in_vid_fmt)
258 u32 val = tvout_read(tvout, reg);
260 val &= ~TVO_IN_FMT_SIGNED;
262 tvout_write(tvout, val, reg);
266 * Set preformatter matrix
268 * @tvout: tvout structure
269 * @mode: display mode structure
271 static void tvout_preformatter_set_matrix(struct sti_tvout *tvout,
272 struct drm_display_mode *mode)
275 const u32 *pf_matrix;
277 if (mode->vdisplay >= TVO_MIN_HD_HEIGHT)
278 pf_matrix = rgb_to_ycbcr_709;
280 pf_matrix = rgb_to_ycbcr_601;
282 for (i = 0; i < 8; i++) {
283 tvout_write(tvout, *(pf_matrix + i),
284 TVO_CSC_MAIN_M0 + (i * 4));
285 tvout_write(tvout, *(pf_matrix + i),
286 TVO_CSC_AUX_M0 + (i * 4));
291 * Start VIP block for DVO output
293 * @tvout: pointer on tvout structure
294 * @main_path: true if main path has to be used in the vip configuration
295 * else aux path is used.
297 static void tvout_dvo_start(struct sti_tvout *tvout, bool main_path)
299 struct device_node *node = tvout->dev->of_node;
300 bool sel_input_logic_inverted = false;
301 u32 tvo_in_vid_format;
304 dev_dbg(tvout->dev, "%s\n", __func__);
307 DRM_DEBUG_DRIVER("main vip for DVO\n");
308 /* Select the input sync for dvo */
309 tmp = TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_DVO;
310 val = tmp << TVO_SYNC_DVO_PAD_VSYNC_SHIFT;
311 val |= tmp << TVO_SYNC_DVO_PAD_HSYNC_SHIFT;
313 tvout_write(tvout, val, TVO_DVO_SYNC_SEL);
314 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
316 DRM_DEBUG_DRIVER("aux vip for DVO\n");
317 /* Select the input sync for dvo */
318 tmp = TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_DVO;
319 val = tmp << TVO_SYNC_DVO_PAD_VSYNC_SHIFT;
320 val |= tmp << TVO_SYNC_DVO_PAD_HSYNC_SHIFT;
322 tvout_write(tvout, val, TVO_DVO_SYNC_SEL);
323 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
326 /* Set color channel order */
327 tvout_vip_set_color_order(tvout, TVO_VIP_DVO,
328 TVO_VIP_REORDER_CR_R_SEL,
329 TVO_VIP_REORDER_Y_G_SEL,
330 TVO_VIP_REORDER_CB_B_SEL);
332 /* Set clipping mode */
333 tvout_vip_set_clip_mode(tvout, TVO_VIP_DVO, TVO_VIP_CLIP_DISABLED);
335 /* Set round mode (rounded to 8-bit per component) */
336 tvout_vip_set_rnd(tvout, TVO_VIP_DVO, TVO_VIP_RND_8BIT_ROUNDED);
338 if (of_device_is_compatible(node, "st,stih407-tvout")) {
339 /* Set input video format */
340 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format,
342 sel_input_logic_inverted = true;
345 /* Input selection */
346 tvout_vip_set_sel_input(tvout, TVO_VIP_DVO, main_path,
347 sel_input_logic_inverted,
348 STI_TVOUT_VIDEO_OUT_RGB);
352 * Start VIP block for HDMI output
354 * @tvout: pointer on tvout structure
355 * @main_path: true if main path has to be used in the vip configuration
356 * else aux path is used.
358 static void tvout_hdmi_start(struct sti_tvout *tvout, bool main_path)
360 struct device_node *node = tvout->dev->of_node;
361 bool sel_input_logic_inverted = false;
362 u32 tvo_in_vid_format;
364 dev_dbg(tvout->dev, "%s\n", __func__);
367 DRM_DEBUG_DRIVER("main vip for hdmi\n");
368 /* select the input sync for hdmi */
370 TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDMI,
372 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
374 DRM_DEBUG_DRIVER("aux vip for hdmi\n");
375 /* select the input sync for hdmi */
377 TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDMI,
379 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
382 /* set color channel order */
383 tvout_vip_set_color_order(tvout, TVO_VIP_HDMI,
384 TVO_VIP_REORDER_CR_R_SEL,
385 TVO_VIP_REORDER_Y_G_SEL,
386 TVO_VIP_REORDER_CB_B_SEL);
388 /* set clipping mode */
389 tvout_vip_set_clip_mode(tvout, TVO_VIP_HDMI, TVO_VIP_CLIP_DISABLED);
391 /* set round mode (rounded to 8-bit per component) */
392 tvout_vip_set_rnd(tvout, TVO_VIP_HDMI, TVO_VIP_RND_8BIT_ROUNDED);
394 if (of_device_is_compatible(node, "st,stih407-tvout")) {
395 /* set input video format */
396 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format,
398 sel_input_logic_inverted = true;
401 /* input selection */
402 tvout_vip_set_sel_input(tvout, TVO_VIP_HDMI, main_path,
403 sel_input_logic_inverted, STI_TVOUT_VIDEO_OUT_RGB);
407 * Start HDF VIP and HD DAC
409 * @tvout: pointer on tvout structure
410 * @main_path: true if main path has to be used in the vip configuration
411 * else aux path is used.
413 static void tvout_hda_start(struct sti_tvout *tvout, bool main_path)
415 struct device_node *node = tvout->dev->of_node;
416 bool sel_input_logic_inverted = false;
417 u32 tvo_in_vid_format;
420 dev_dbg(tvout->dev, "%s\n", __func__);
423 DRM_DEBUG_DRIVER("main vip for HDF\n");
424 /* Select the input sync for HD analog and HD DCS */
425 val = TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDDCS;
426 val = val << TVO_SYNC_HD_DCS_SHIFT;
427 val |= TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDF;
428 tvout_write(tvout, val, TVO_HD_SYNC_SEL);
429 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
431 DRM_DEBUG_DRIVER("aux vip for HDF\n");
432 /* Select the input sync for HD analog and HD DCS */
433 val = TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDDCS;
434 val = val << TVO_SYNC_HD_DCS_SHIFT;
435 val |= TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDF;
436 tvout_write(tvout, val, TVO_HD_SYNC_SEL);
437 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
440 /* set color channel order */
441 tvout_vip_set_color_order(tvout, TVO_VIP_HDF,
442 TVO_VIP_REORDER_CR_R_SEL,
443 TVO_VIP_REORDER_Y_G_SEL,
444 TVO_VIP_REORDER_CB_B_SEL);
446 /* set clipping mode */
447 tvout_vip_set_clip_mode(tvout, TVO_VIP_HDF, TVO_VIP_CLIP_DISABLED);
449 /* set round mode (rounded to 10-bit per component) */
450 tvout_vip_set_rnd(tvout, TVO_VIP_HDF, TVO_VIP_RND_10BIT_ROUNDED);
452 if (of_device_is_compatible(node, "st,stih407-tvout")) {
453 /* set input video format */
454 tvout_vip_set_in_vid_fmt(tvout,
455 tvo_in_vid_format, TVO_IN_FMT_SIGNED);
456 sel_input_logic_inverted = true;
459 /* Input selection */
460 tvout_vip_set_sel_input(tvout, TVO_VIP_HDF, main_path,
461 sel_input_logic_inverted,
462 STI_TVOUT_VIDEO_OUT_YUV);
464 /* power up HD DAC */
465 tvout_write(tvout, 0, TVO_HD_DAC_CFG_OFF);
468 #define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
469 readl(tvout->regs + reg))
471 static void tvout_dbg_vip(struct seq_file *s, int val)
473 int r, g, b, tmp, mask;
474 char *const reorder[] = {"Y_G", "Cb_B", "Cr_R"};
475 char *const clipping[] = {"No", "EAV/SAV", "Limited range RGB/Y",
476 "Limited range Cb/Cr", "decided by register"};
477 char *const round[] = {"8-bit", "10-bit", "12-bit"};
478 char *const input_sel[] = {"Main (color matrix enabled)",
479 "Main (color matrix by-passed)",
480 "", "", "", "", "", "",
481 "Aux (color matrix enabled)",
482 "Aux (color matrix by-passed)",
483 "", "", "", "", "", "Force value"};
486 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT;
487 r = (val & mask) >> TVO_VIP_REORDER_R_SHIFT;
488 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT;
489 g = (val & mask) >> TVO_VIP_REORDER_G_SHIFT;
490 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT;
491 b = (val & mask) >> TVO_VIP_REORDER_B_SHIFT;
492 seq_printf(s, "%-24s %s->%s %s->%s %s->%s\n", "Reorder:",
493 reorder[r], reorder[TVO_VIP_REORDER_CR_R_SEL],
494 reorder[g], reorder[TVO_VIP_REORDER_Y_G_SEL],
495 reorder[b], reorder[TVO_VIP_REORDER_CB_B_SEL]);
496 seq_puts(s, "\t\t\t\t\t");
497 mask = TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT;
498 tmp = (val & mask) >> TVO_VIP_CLIP_SHIFT;
499 seq_printf(s, "%-24s %s\n", "Clipping:", clipping[tmp]);
500 seq_puts(s, "\t\t\t\t\t");
501 mask = TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT;
502 tmp = (val & mask) >> TVO_VIP_RND_SHIFT;
503 seq_printf(s, "%-24s input data rounded to %s per component\n",
504 "Round:", round[tmp]);
505 seq_puts(s, "\t\t\t\t\t");
506 tmp = (val & TVO_VIP_SEL_INPUT_MASK);
507 seq_printf(s, "%-24s %s", "Input selection:", input_sel[tmp]);
510 static void tvout_dbg_hd_dac_cfg(struct seq_file *s, int val)
512 seq_printf(s, "\t%-24s %s", "HD DAC:",
513 val & 1 ? "disabled" : "enabled");
516 static int tvout_dbg_show(struct seq_file *s, void *data)
518 struct drm_info_node *node = s->private;
519 struct sti_tvout *tvout = (struct sti_tvout *)node->info_ent->data;
520 struct drm_crtc *crtc;
522 seq_printf(s, "TVOUT: (vaddr = 0x%p)", tvout->regs);
524 seq_puts(s, "\n\n HDMI encoder: ");
525 crtc = tvout->hdmi->crtc;
527 seq_printf(s, "connected to %s path",
528 sti_crtc_is_main(crtc) ? "main" : "aux");
529 DBGFS_DUMP(TVO_HDMI_SYNC_SEL);
530 DBGFS_DUMP(TVO_VIP_HDMI);
531 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDMI));
533 seq_puts(s, "disabled");
536 seq_puts(s, "\n\n DVO encoder: ");
537 crtc = tvout->dvo->crtc;
539 seq_printf(s, "connected to %s path",
540 sti_crtc_is_main(crtc) ? "main" : "aux");
541 DBGFS_DUMP(TVO_DVO_SYNC_SEL);
542 DBGFS_DUMP(TVO_DVO_CONFIG);
543 DBGFS_DUMP(TVO_VIP_DVO);
544 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_DVO));
546 seq_puts(s, "disabled");
549 seq_puts(s, "\n\n HDA encoder: ");
550 crtc = tvout->hda->crtc;
552 seq_printf(s, "connected to %s path",
553 sti_crtc_is_main(crtc) ? "main" : "aux");
554 DBGFS_DUMP(TVO_HD_SYNC_SEL);
555 DBGFS_DUMP(TVO_HD_DAC_CFG_OFF);
556 tvout_dbg_hd_dac_cfg(s,
557 readl(tvout->regs + TVO_HD_DAC_CFG_OFF));
558 DBGFS_DUMP(TVO_VIP_HDF);
559 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDF));
561 seq_puts(s, "disabled");
564 seq_puts(s, "\n\n main path configuration");
565 DBGFS_DUMP(TVO_CSC_MAIN_M0);
566 DBGFS_DUMP(TVO_CSC_MAIN_M1);
567 DBGFS_DUMP(TVO_CSC_MAIN_M2);
568 DBGFS_DUMP(TVO_CSC_MAIN_M3);
569 DBGFS_DUMP(TVO_CSC_MAIN_M4);
570 DBGFS_DUMP(TVO_CSC_MAIN_M5);
571 DBGFS_DUMP(TVO_CSC_MAIN_M6);
572 DBGFS_DUMP(TVO_CSC_MAIN_M7);
573 DBGFS_DUMP(TVO_MAIN_IN_VID_FORMAT);
575 seq_puts(s, "\n\n auxiliary path configuration");
576 DBGFS_DUMP(TVO_CSC_AUX_M0);
577 DBGFS_DUMP(TVO_CSC_AUX_M2);
578 DBGFS_DUMP(TVO_CSC_AUX_M3);
579 DBGFS_DUMP(TVO_CSC_AUX_M4);
580 DBGFS_DUMP(TVO_CSC_AUX_M5);
581 DBGFS_DUMP(TVO_CSC_AUX_M6);
582 DBGFS_DUMP(TVO_CSC_AUX_M7);
583 DBGFS_DUMP(TVO_AUX_IN_VID_FORMAT);
589 static struct drm_info_list tvout_debugfs_files[] = {
590 { "tvout", tvout_dbg_show, 0, NULL },
593 static void tvout_debugfs_exit(struct sti_tvout *tvout, struct drm_minor *minor)
595 drm_debugfs_remove_files(tvout_debugfs_files,
596 ARRAY_SIZE(tvout_debugfs_files),
600 static int tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
604 for (i = 0; i < ARRAY_SIZE(tvout_debugfs_files); i++)
605 tvout_debugfs_files[i].data = tvout;
607 return drm_debugfs_create_files(tvout_debugfs_files,
608 ARRAY_SIZE(tvout_debugfs_files),
609 minor->debugfs_root, minor);
612 static void sti_tvout_encoder_dpms(struct drm_encoder *encoder, int mode)
616 static void sti_tvout_encoder_mode_set(struct drm_encoder *encoder,
617 struct drm_display_mode *mode,
618 struct drm_display_mode *adjusted_mode)
622 static void sti_tvout_encoder_destroy(struct drm_encoder *encoder)
624 struct sti_tvout_encoder *sti_encoder = to_sti_tvout_encoder(encoder);
626 drm_encoder_cleanup(encoder);
630 static int sti_tvout_late_register(struct drm_encoder *encoder)
632 struct sti_tvout *tvout = to_sti_tvout(encoder);
635 if (tvout->debugfs_registered)
638 ret = tvout_debugfs_init(tvout, encoder->dev->primary);
642 tvout->debugfs_registered = true;
646 static void sti_tvout_early_unregister(struct drm_encoder *encoder)
648 struct sti_tvout *tvout = to_sti_tvout(encoder);
650 if (!tvout->debugfs_registered)
653 tvout_debugfs_exit(tvout, encoder->dev->primary);
654 tvout->debugfs_registered = false;
657 static const struct drm_encoder_funcs sti_tvout_encoder_funcs = {
658 .destroy = sti_tvout_encoder_destroy,
659 .late_register = sti_tvout_late_register,
660 .early_unregister = sti_tvout_early_unregister,
663 static void sti_dvo_encoder_enable(struct drm_encoder *encoder)
665 struct sti_tvout *tvout = to_sti_tvout(encoder);
667 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
669 tvout_dvo_start(tvout, sti_crtc_is_main(encoder->crtc));
672 static void sti_dvo_encoder_disable(struct drm_encoder *encoder)
674 struct sti_tvout *tvout = to_sti_tvout(encoder);
676 /* Reset VIP register */
677 tvout_write(tvout, 0x0, TVO_VIP_DVO);
680 static const struct drm_encoder_helper_funcs sti_dvo_encoder_helper_funcs = {
681 .dpms = sti_tvout_encoder_dpms,
682 .mode_set = sti_tvout_encoder_mode_set,
683 .enable = sti_dvo_encoder_enable,
684 .disable = sti_dvo_encoder_disable,
687 static struct drm_encoder *
688 sti_tvout_create_dvo_encoder(struct drm_device *dev,
689 struct sti_tvout *tvout)
691 struct sti_tvout_encoder *encoder;
692 struct drm_encoder *drm_encoder;
694 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
698 encoder->tvout = tvout;
700 drm_encoder = (struct drm_encoder *)encoder;
702 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
703 drm_encoder->possible_clones = 1 << 0;
705 drm_encoder_init(dev, drm_encoder,
706 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_LVDS,
709 drm_encoder_helper_add(drm_encoder, &sti_dvo_encoder_helper_funcs);
714 static void sti_hda_encoder_enable(struct drm_encoder *encoder)
716 struct sti_tvout *tvout = to_sti_tvout(encoder);
718 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
720 tvout_hda_start(tvout, sti_crtc_is_main(encoder->crtc));
723 static void sti_hda_encoder_disable(struct drm_encoder *encoder)
725 struct sti_tvout *tvout = to_sti_tvout(encoder);
727 /* reset VIP register */
728 tvout_write(tvout, 0x0, TVO_VIP_HDF);
730 /* power down HD DAC */
731 tvout_write(tvout, 1, TVO_HD_DAC_CFG_OFF);
734 static const struct drm_encoder_helper_funcs sti_hda_encoder_helper_funcs = {
735 .dpms = sti_tvout_encoder_dpms,
736 .mode_set = sti_tvout_encoder_mode_set,
737 .commit = sti_hda_encoder_enable,
738 .disable = sti_hda_encoder_disable,
741 static struct drm_encoder *sti_tvout_create_hda_encoder(struct drm_device *dev,
742 struct sti_tvout *tvout)
744 struct sti_tvout_encoder *encoder;
745 struct drm_encoder *drm_encoder;
747 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
751 encoder->tvout = tvout;
753 drm_encoder = (struct drm_encoder *) encoder;
755 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
756 drm_encoder->possible_clones = 1 << 0;
758 drm_encoder_init(dev, drm_encoder,
759 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_DAC, NULL);
761 drm_encoder_helper_add(drm_encoder, &sti_hda_encoder_helper_funcs);
766 static void sti_hdmi_encoder_enable(struct drm_encoder *encoder)
768 struct sti_tvout *tvout = to_sti_tvout(encoder);
770 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
772 tvout_hdmi_start(tvout, sti_crtc_is_main(encoder->crtc));
775 static void sti_hdmi_encoder_disable(struct drm_encoder *encoder)
777 struct sti_tvout *tvout = to_sti_tvout(encoder);
779 /* reset VIP register */
780 tvout_write(tvout, 0x0, TVO_VIP_HDMI);
783 static const struct drm_encoder_helper_funcs sti_hdmi_encoder_helper_funcs = {
784 .dpms = sti_tvout_encoder_dpms,
785 .mode_set = sti_tvout_encoder_mode_set,
786 .commit = sti_hdmi_encoder_enable,
787 .disable = sti_hdmi_encoder_disable,
790 static struct drm_encoder *sti_tvout_create_hdmi_encoder(struct drm_device *dev,
791 struct sti_tvout *tvout)
793 struct sti_tvout_encoder *encoder;
794 struct drm_encoder *drm_encoder;
796 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
800 encoder->tvout = tvout;
802 drm_encoder = (struct drm_encoder *) encoder;
804 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
805 drm_encoder->possible_clones = 1 << 1;
807 drm_encoder_init(dev, drm_encoder,
808 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_TMDS, NULL);
810 drm_encoder_helper_add(drm_encoder, &sti_hdmi_encoder_helper_funcs);
815 static void sti_tvout_create_encoders(struct drm_device *dev,
816 struct sti_tvout *tvout)
818 tvout->hdmi = sti_tvout_create_hdmi_encoder(dev, tvout);
819 tvout->hda = sti_tvout_create_hda_encoder(dev, tvout);
820 tvout->dvo = sti_tvout_create_dvo_encoder(dev, tvout);
823 static void sti_tvout_destroy_encoders(struct sti_tvout *tvout)
826 drm_encoder_cleanup(tvout->hdmi);
830 drm_encoder_cleanup(tvout->hda);
834 drm_encoder_cleanup(tvout->dvo);
838 static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
840 struct sti_tvout *tvout = dev_get_drvdata(dev);
841 struct drm_device *drm_dev = data;
843 tvout->drm_dev = drm_dev;
845 sti_tvout_create_encoders(drm_dev, tvout);
850 static void sti_tvout_unbind(struct device *dev, struct device *master,
853 struct sti_tvout *tvout = dev_get_drvdata(dev);
855 sti_tvout_destroy_encoders(tvout);
858 static const struct component_ops sti_tvout_ops = {
859 .bind = sti_tvout_bind,
860 .unbind = sti_tvout_unbind,
863 static int sti_tvout_probe(struct platform_device *pdev)
865 struct device *dev = &pdev->dev;
866 struct device_node *node = dev->of_node;
867 struct sti_tvout *tvout;
868 struct resource *res;
870 DRM_INFO("%s\n", __func__);
875 tvout = devm_kzalloc(dev, sizeof(*tvout), GFP_KERNEL);
881 /* get Memory ressources */
882 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tvout-reg");
884 DRM_ERROR("Invalid glue resource\n");
887 tvout->regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
891 /* get reset resources */
892 tvout->reset = devm_reset_control_get(dev, "tvout");
893 /* take tvout out of reset */
894 if (!IS_ERR(tvout->reset))
895 reset_control_deassert(tvout->reset);
897 platform_set_drvdata(pdev, tvout);
899 return component_add(dev, &sti_tvout_ops);
902 static int sti_tvout_remove(struct platform_device *pdev)
904 component_del(&pdev->dev, &sti_tvout_ops);
908 static const struct of_device_id tvout_of_match[] = {
909 { .compatible = "st,stih416-tvout", },
910 { .compatible = "st,stih407-tvout", },
913 MODULE_DEVICE_TABLE(of, tvout_of_match);
915 struct platform_driver sti_tvout_driver = {
918 .owner = THIS_MODULE,
919 .of_match_table = tvout_of_match,
921 .probe = sti_tvout_probe,
922 .remove = sti_tvout_remove,
925 MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
926 MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
927 MODULE_LICENSE("GPL");