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>
24 #define TVO_CSC_MAIN_M0 0x000
25 #define TVO_CSC_MAIN_M1 0x004
26 #define TVO_CSC_MAIN_M2 0x008
27 #define TVO_CSC_MAIN_M3 0x00c
28 #define TVO_CSC_MAIN_M4 0x010
29 #define TVO_CSC_MAIN_M5 0x014
30 #define TVO_CSC_MAIN_M6 0x018
31 #define TVO_CSC_MAIN_M7 0x01c
32 #define TVO_MAIN_IN_VID_FORMAT 0x030
33 #define TVO_CSC_AUX_M0 0x100
34 #define TVO_CSC_AUX_M1 0x104
35 #define TVO_CSC_AUX_M2 0x108
36 #define TVO_CSC_AUX_M3 0x10c
37 #define TVO_CSC_AUX_M4 0x110
38 #define TVO_CSC_AUX_M5 0x114
39 #define TVO_CSC_AUX_M6 0x118
40 #define TVO_CSC_AUX_M7 0x11c
41 #define TVO_AUX_IN_VID_FORMAT 0x130
42 #define TVO_VIP_HDF 0x400
43 #define TVO_HD_SYNC_SEL 0x418
44 #define TVO_HD_DAC_CFG_OFF 0x420
45 #define TVO_VIP_HDMI 0x500
46 #define TVO_HDMI_FORCE_COLOR_0 0x504
47 #define TVO_HDMI_FORCE_COLOR_1 0x508
48 #define TVO_HDMI_CLIP_VALUE_B_CB 0x50c
49 #define TVO_HDMI_CLIP_VALUE_Y_G 0x510
50 #define TVO_HDMI_CLIP_VALUE_R_CR 0x514
51 #define TVO_HDMI_SYNC_SEL 0x518
52 #define TVO_HDMI_DFV_OBS 0x540
53 #define TVO_VIP_DVO 0x600
54 #define TVO_DVO_SYNC_SEL 0x618
55 #define TVO_DVO_CONFIG 0x620
57 #define TVO_IN_FMT_SIGNED BIT(0)
58 #define TVO_SYNC_EXT BIT(4)
60 #define TVO_VIP_REORDER_R_SHIFT 24
61 #define TVO_VIP_REORDER_G_SHIFT 20
62 #define TVO_VIP_REORDER_B_SHIFT 16
63 #define TVO_VIP_REORDER_MASK 0x3
64 #define TVO_VIP_REORDER_Y_G_SEL 0
65 #define TVO_VIP_REORDER_CB_B_SEL 1
66 #define TVO_VIP_REORDER_CR_R_SEL 2
68 #define TVO_VIP_CLIP_SHIFT 8
69 #define TVO_VIP_CLIP_MASK 0x7
70 #define TVO_VIP_CLIP_DISABLED 0
71 #define TVO_VIP_CLIP_EAV_SAV 1
72 #define TVO_VIP_CLIP_LIMITED_RANGE_RGB_Y 2
73 #define TVO_VIP_CLIP_LIMITED_RANGE_CB_CR 3
74 #define TVO_VIP_CLIP_PROG_RANGE 4
76 #define TVO_VIP_RND_SHIFT 4
77 #define TVO_VIP_RND_MASK 0x3
78 #define TVO_VIP_RND_8BIT_ROUNDED 0
79 #define TVO_VIP_RND_10BIT_ROUNDED 1
80 #define TVO_VIP_RND_12BIT_ROUNDED 2
82 #define TVO_VIP_SEL_INPUT_MASK 0xf
83 #define TVO_VIP_SEL_INPUT_MAIN 0x0
84 #define TVO_VIP_SEL_INPUT_AUX 0x8
85 #define TVO_VIP_SEL_INPUT_FORCE_COLOR 0xf
86 #define TVO_VIP_SEL_INPUT_BYPASS_MASK 0x1
87 #define TVO_VIP_SEL_INPUT_BYPASSED 1
89 #define TVO_SYNC_MAIN_VTG_SET_REF 0x00
90 #define TVO_SYNC_AUX_VTG_SET_REF 0x10
92 #define TVO_SYNC_HD_DCS_SHIFT 8
94 #define TVO_SYNC_DVO_PAD_HSYNC_SHIFT 8
95 #define TVO_SYNC_DVO_PAD_VSYNC_SHIFT 16
97 #define ENCODER_CRTC_MASK (BIT(0) | BIT(1))
99 #define TVO_MIN_HD_HEIGHT 720
101 /* enum listing the supported output data format */
102 enum sti_tvout_video_out_type {
103 STI_TVOUT_VIDEO_OUT_RGB,
104 STI_TVOUT_VIDEO_OUT_YUV,
109 struct drm_device *drm_dev;
111 struct reset_control *reset;
112 struct drm_encoder *hdmi;
113 struct drm_encoder *hda;
114 struct drm_encoder *dvo;
115 bool debugfs_registered;
118 struct sti_tvout_encoder {
119 struct drm_encoder encoder;
120 struct sti_tvout *tvout;
123 #define to_sti_tvout_encoder(x) \
124 container_of(x, struct sti_tvout_encoder, encoder)
126 #define to_sti_tvout(x) to_sti_tvout_encoder(x)->tvout
128 /* preformatter conversion matrix */
129 static const u32 rgb_to_ycbcr_601[8] = {
130 0xF927082E, 0x04C9FEAB, 0x01D30964, 0xFA95FD3D,
131 0x0000082E, 0x00002000, 0x00002000, 0x00000000
134 /* 709 RGB to YCbCr */
135 static const u32 rgb_to_ycbcr_709[8] = {
136 0xF891082F, 0x0367FF40, 0x01280B71, 0xF9B1FE20,
137 0x0000082F, 0x00002000, 0x00002000, 0x00000000
140 static u32 tvout_read(struct sti_tvout *tvout, int offset)
142 return readl(tvout->regs + offset);
145 static void tvout_write(struct sti_tvout *tvout, u32 val, int offset)
147 writel(val, tvout->regs + offset);
151 * Set the clipping mode of a VIP
153 * @tvout: tvout structure
154 * @reg: register to set
159 static void tvout_vip_set_color_order(struct sti_tvout *tvout, int reg,
160 u32 cr_r, u32 y_g, u32 cb_b)
162 u32 val = tvout_read(tvout, reg);
164 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT);
165 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT);
166 val &= ~(TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT);
167 val |= cr_r << TVO_VIP_REORDER_R_SHIFT;
168 val |= y_g << TVO_VIP_REORDER_G_SHIFT;
169 val |= cb_b << TVO_VIP_REORDER_B_SHIFT;
171 tvout_write(tvout, val, reg);
175 * Set the clipping mode of a VIP
177 * @tvout: tvout structure
178 * @reg: register to set
179 * @range: clipping range
181 static void tvout_vip_set_clip_mode(struct sti_tvout *tvout, int reg, u32 range)
183 u32 val = tvout_read(tvout, reg);
185 val &= ~(TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT);
186 val |= range << TVO_VIP_CLIP_SHIFT;
187 tvout_write(tvout, val, reg);
191 * Set the rounded value of a VIP
193 * @tvout: tvout structure
194 * @reg: register to set
195 * @rnd: rounded val per component
197 static void tvout_vip_set_rnd(struct sti_tvout *tvout, int reg, u32 rnd)
199 u32 val = tvout_read(tvout, reg);
201 val &= ~(TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT);
202 val |= rnd << TVO_VIP_RND_SHIFT;
203 tvout_write(tvout, val, reg);
207 * Select the VIP input
209 * @tvout: tvout structure
210 * @reg: register to set
211 * @main_path: main or auxiliary path
212 * @sel_input_logic_inverted: need to invert the logic
213 * @sel_input: selected_input (main/aux + conv)
215 static void tvout_vip_set_sel_input(struct sti_tvout *tvout,
218 bool sel_input_logic_inverted,
219 enum sti_tvout_video_out_type video_out)
222 u32 val = tvout_read(tvout, reg);
225 sel_input = TVO_VIP_SEL_INPUT_MAIN;
227 sel_input = TVO_VIP_SEL_INPUT_AUX;
230 case STI_TVOUT_VIDEO_OUT_RGB:
231 sel_input |= TVO_VIP_SEL_INPUT_BYPASSED;
233 case STI_TVOUT_VIDEO_OUT_YUV:
234 sel_input &= ~TVO_VIP_SEL_INPUT_BYPASSED;
238 /* on stih407 chip the sel_input bypass mode logic is inverted */
239 if (sel_input_logic_inverted)
240 sel_input = sel_input ^ TVO_VIP_SEL_INPUT_BYPASS_MASK;
242 val &= ~TVO_VIP_SEL_INPUT_MASK;
244 tvout_write(tvout, val, reg);
248 * Select the input video signed or unsigned
250 * @tvout: tvout structure
251 * @reg: register to set
252 * @in_vid_signed: used video input format
254 static void tvout_vip_set_in_vid_fmt(struct sti_tvout *tvout,
255 int reg, u32 in_vid_fmt)
257 u32 val = tvout_read(tvout, reg);
259 val &= ~TVO_IN_FMT_SIGNED;
261 tvout_write(tvout, val, reg);
265 * Set preformatter matrix
267 * @tvout: tvout structure
268 * @mode: display mode structure
270 static void tvout_preformatter_set_matrix(struct sti_tvout *tvout,
271 struct drm_display_mode *mode)
274 const u32 *pf_matrix;
276 if (mode->vdisplay >= TVO_MIN_HD_HEIGHT)
277 pf_matrix = rgb_to_ycbcr_709;
279 pf_matrix = rgb_to_ycbcr_601;
281 for (i = 0; i < 8; i++) {
282 tvout_write(tvout, *(pf_matrix + i),
283 TVO_CSC_MAIN_M0 + (i * 4));
284 tvout_write(tvout, *(pf_matrix + i),
285 TVO_CSC_AUX_M0 + (i * 4));
290 * Start VIP block for DVO output
292 * @tvout: pointer on tvout structure
293 * @main_path: true if main path has to be used in the vip configuration
294 * else aux path is used.
296 static void tvout_dvo_start(struct sti_tvout *tvout, bool main_path)
298 struct device_node *node = tvout->dev->of_node;
299 bool sel_input_logic_inverted = false;
300 u32 tvo_in_vid_format;
303 dev_dbg(tvout->dev, "%s\n", __func__);
306 DRM_DEBUG_DRIVER("main vip for DVO\n");
307 /* Select the input sync for dvo */
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;
312 tvout_write(tvout, val, TVO_DVO_SYNC_SEL);
313 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
315 DRM_DEBUG_DRIVER("aux vip for DVO\n");
316 /* Select the input sync for dvo */
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;
321 tvout_write(tvout, val, TVO_DVO_SYNC_SEL);
322 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
325 /* Set color channel order */
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);
331 /* Set clipping mode */
332 tvout_vip_set_clip_mode(tvout, TVO_VIP_DVO, TVO_VIP_CLIP_DISABLED);
334 /* Set round mode (rounded to 8-bit per component) */
335 tvout_vip_set_rnd(tvout, TVO_VIP_DVO, TVO_VIP_RND_8BIT_ROUNDED);
337 if (of_device_is_compatible(node, "st,stih407-tvout")) {
338 /* Set input video format */
339 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format,
341 sel_input_logic_inverted = true;
344 /* Input selection */
345 tvout_vip_set_sel_input(tvout, TVO_VIP_DVO, main_path,
346 sel_input_logic_inverted,
347 STI_TVOUT_VIDEO_OUT_RGB);
351 * Start VIP block for HDMI output
353 * @tvout: pointer on tvout structure
354 * @main_path: true if main path has to be used in the vip configuration
355 * else aux path is used.
357 static void tvout_hdmi_start(struct sti_tvout *tvout, bool main_path)
359 struct device_node *node = tvout->dev->of_node;
360 bool sel_input_logic_inverted = false;
361 u32 tvo_in_vid_format;
363 dev_dbg(tvout->dev, "%s\n", __func__);
366 DRM_DEBUG_DRIVER("main vip for hdmi\n");
367 /* select the input sync for hdmi */
369 TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDMI,
371 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
373 DRM_DEBUG_DRIVER("aux vip for hdmi\n");
374 /* select the input sync for hdmi */
376 TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDMI,
378 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
381 /* set color channel order */
382 tvout_vip_set_color_order(tvout, TVO_VIP_HDMI,
383 TVO_VIP_REORDER_CR_R_SEL,
384 TVO_VIP_REORDER_Y_G_SEL,
385 TVO_VIP_REORDER_CB_B_SEL);
387 /* set clipping mode */
388 tvout_vip_set_clip_mode(tvout, TVO_VIP_HDMI, TVO_VIP_CLIP_DISABLED);
390 /* set round mode (rounded to 8-bit per component) */
391 tvout_vip_set_rnd(tvout, TVO_VIP_HDMI, TVO_VIP_RND_8BIT_ROUNDED);
393 if (of_device_is_compatible(node, "st,stih407-tvout")) {
394 /* set input video format */
395 tvout_vip_set_in_vid_fmt(tvout, tvo_in_vid_format,
397 sel_input_logic_inverted = true;
400 /* input selection */
401 tvout_vip_set_sel_input(tvout, TVO_VIP_HDMI, main_path,
402 sel_input_logic_inverted, STI_TVOUT_VIDEO_OUT_RGB);
406 * Start HDF VIP and HD DAC
408 * @tvout: pointer on tvout structure
409 * @main_path: true if main path has to be used in the vip configuration
410 * else aux path is used.
412 static void tvout_hda_start(struct sti_tvout *tvout, bool main_path)
414 struct device_node *node = tvout->dev->of_node;
415 bool sel_input_logic_inverted = false;
416 u32 tvo_in_vid_format;
419 dev_dbg(tvout->dev, "%s\n", __func__);
422 DRM_DEBUG_DRIVER("main vip for HDF\n");
423 /* Select the input sync for HD analog and HD DCS */
424 val = TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDDCS;
425 val = val << TVO_SYNC_HD_DCS_SHIFT;
426 val |= TVO_SYNC_MAIN_VTG_SET_REF | VTG_SYNC_ID_HDF;
427 tvout_write(tvout, val, TVO_HD_SYNC_SEL);
428 tvo_in_vid_format = TVO_MAIN_IN_VID_FORMAT;
430 DRM_DEBUG_DRIVER("aux vip for HDF\n");
431 /* Select the input sync for HD analog and HD DCS */
432 val = TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDDCS;
433 val = val << TVO_SYNC_HD_DCS_SHIFT;
434 val |= TVO_SYNC_AUX_VTG_SET_REF | VTG_SYNC_ID_HDF;
435 tvout_write(tvout, val, TVO_HD_SYNC_SEL);
436 tvo_in_vid_format = TVO_AUX_IN_VID_FORMAT;
439 /* set color channel order */
440 tvout_vip_set_color_order(tvout, TVO_VIP_HDF,
441 TVO_VIP_REORDER_CR_R_SEL,
442 TVO_VIP_REORDER_Y_G_SEL,
443 TVO_VIP_REORDER_CB_B_SEL);
445 /* set clipping mode */
446 tvout_vip_set_clip_mode(tvout, TVO_VIP_HDF, TVO_VIP_CLIP_DISABLED);
448 /* set round mode (rounded to 10-bit per component) */
449 tvout_vip_set_rnd(tvout, TVO_VIP_HDF, TVO_VIP_RND_10BIT_ROUNDED);
451 if (of_device_is_compatible(node, "st,stih407-tvout")) {
452 /* set input video format */
453 tvout_vip_set_in_vid_fmt(tvout,
454 tvo_in_vid_format, TVO_IN_FMT_SIGNED);
455 sel_input_logic_inverted = true;
458 /* Input selection */
459 tvout_vip_set_sel_input(tvout, TVO_VIP_HDF, main_path,
460 sel_input_logic_inverted,
461 STI_TVOUT_VIDEO_OUT_YUV);
463 /* power up HD DAC */
464 tvout_write(tvout, 0, TVO_HD_DAC_CFG_OFF);
467 #define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
468 readl(tvout->regs + reg))
470 static void tvout_dbg_vip(struct seq_file *s, int val)
472 int r, g, b, tmp, mask;
473 char *const reorder[] = {"Y_G", "Cb_B", "Cr_R"};
474 char *const clipping[] = {"No", "EAV/SAV", "Limited range RGB/Y",
475 "Limited range Cb/Cr", "decided by register"};
476 char *const round[] = {"8-bit", "10-bit", "12-bit"};
477 char *const input_sel[] = {"Main (color matrix enabled)",
478 "Main (color matrix by-passed)",
479 "", "", "", "", "", "",
480 "Aux (color matrix enabled)",
481 "Aux (color matrix by-passed)",
482 "", "", "", "", "", "Force value"};
485 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT;
486 r = (val & mask) >> TVO_VIP_REORDER_R_SHIFT;
487 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT;
488 g = (val & mask) >> TVO_VIP_REORDER_G_SHIFT;
489 mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT;
490 b = (val & mask) >> TVO_VIP_REORDER_B_SHIFT;
491 seq_printf(s, "%-24s %s->%s %s->%s %s->%s\n", "Reorder:",
492 reorder[r], reorder[TVO_VIP_REORDER_CR_R_SEL],
493 reorder[g], reorder[TVO_VIP_REORDER_Y_G_SEL],
494 reorder[b], reorder[TVO_VIP_REORDER_CB_B_SEL]);
495 seq_puts(s, "\t\t\t\t\t");
496 mask = TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT;
497 tmp = (val & mask) >> TVO_VIP_CLIP_SHIFT;
498 seq_printf(s, "%-24s %s\n", "Clipping:", clipping[tmp]);
499 seq_puts(s, "\t\t\t\t\t");
500 mask = TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT;
501 tmp = (val & mask) >> TVO_VIP_RND_SHIFT;
502 seq_printf(s, "%-24s input data rounded to %s per component\n",
503 "Round:", round[tmp]);
504 seq_puts(s, "\t\t\t\t\t");
505 tmp = (val & TVO_VIP_SEL_INPUT_MASK);
506 seq_printf(s, "%-24s %s", "Input selection:", input_sel[tmp]);
509 static void tvout_dbg_hd_dac_cfg(struct seq_file *s, int val)
511 seq_printf(s, "\t%-24s %s", "HD DAC:",
512 val & 1 ? "disabled" : "enabled");
515 static int tvout_dbg_show(struct seq_file *s, void *data)
517 struct drm_info_node *node = s->private;
518 struct sti_tvout *tvout = (struct sti_tvout *)node->info_ent->data;
519 struct drm_crtc *crtc;
521 seq_printf(s, "TVOUT: (vaddr = 0x%p)", tvout->regs);
523 seq_puts(s, "\n\n HDMI encoder: ");
524 crtc = tvout->hdmi->crtc;
526 seq_printf(s, "connected to %s path",
527 sti_crtc_is_main(crtc) ? "main" : "aux");
528 DBGFS_DUMP(TVO_HDMI_SYNC_SEL);
529 DBGFS_DUMP(TVO_VIP_HDMI);
530 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDMI));
532 seq_puts(s, "disabled");
535 seq_puts(s, "\n\n DVO encoder: ");
536 crtc = tvout->dvo->crtc;
538 seq_printf(s, "connected to %s path",
539 sti_crtc_is_main(crtc) ? "main" : "aux");
540 DBGFS_DUMP(TVO_DVO_SYNC_SEL);
541 DBGFS_DUMP(TVO_DVO_CONFIG);
542 DBGFS_DUMP(TVO_VIP_DVO);
543 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_DVO));
545 seq_puts(s, "disabled");
548 seq_puts(s, "\n\n HDA encoder: ");
549 crtc = tvout->hda->crtc;
551 seq_printf(s, "connected to %s path",
552 sti_crtc_is_main(crtc) ? "main" : "aux");
553 DBGFS_DUMP(TVO_HD_SYNC_SEL);
554 DBGFS_DUMP(TVO_HD_DAC_CFG_OFF);
555 tvout_dbg_hd_dac_cfg(s,
556 readl(tvout->regs + TVO_HD_DAC_CFG_OFF));
557 DBGFS_DUMP(TVO_VIP_HDF);
558 tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDF));
560 seq_puts(s, "disabled");
563 seq_puts(s, "\n\n main path configuration");
564 DBGFS_DUMP(TVO_CSC_MAIN_M0);
565 DBGFS_DUMP(TVO_CSC_MAIN_M1);
566 DBGFS_DUMP(TVO_CSC_MAIN_M2);
567 DBGFS_DUMP(TVO_CSC_MAIN_M3);
568 DBGFS_DUMP(TVO_CSC_MAIN_M4);
569 DBGFS_DUMP(TVO_CSC_MAIN_M5);
570 DBGFS_DUMP(TVO_CSC_MAIN_M6);
571 DBGFS_DUMP(TVO_CSC_MAIN_M7);
572 DBGFS_DUMP(TVO_MAIN_IN_VID_FORMAT);
574 seq_puts(s, "\n\n auxiliary path configuration");
575 DBGFS_DUMP(TVO_CSC_AUX_M0);
576 DBGFS_DUMP(TVO_CSC_AUX_M2);
577 DBGFS_DUMP(TVO_CSC_AUX_M3);
578 DBGFS_DUMP(TVO_CSC_AUX_M4);
579 DBGFS_DUMP(TVO_CSC_AUX_M5);
580 DBGFS_DUMP(TVO_CSC_AUX_M6);
581 DBGFS_DUMP(TVO_CSC_AUX_M7);
582 DBGFS_DUMP(TVO_AUX_IN_VID_FORMAT);
588 static struct drm_info_list tvout_debugfs_files[] = {
589 { "tvout", tvout_dbg_show, 0, NULL },
592 static void tvout_debugfs_exit(struct sti_tvout *tvout, struct drm_minor *minor)
594 drm_debugfs_remove_files(tvout_debugfs_files,
595 ARRAY_SIZE(tvout_debugfs_files),
599 static int tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
603 for (i = 0; i < ARRAY_SIZE(tvout_debugfs_files); i++)
604 tvout_debugfs_files[i].data = tvout;
606 return drm_debugfs_create_files(tvout_debugfs_files,
607 ARRAY_SIZE(tvout_debugfs_files),
608 minor->debugfs_root, minor);
611 static void sti_tvout_encoder_dpms(struct drm_encoder *encoder, int mode)
615 static void sti_tvout_encoder_mode_set(struct drm_encoder *encoder,
616 struct drm_display_mode *mode,
617 struct drm_display_mode *adjusted_mode)
621 static void sti_tvout_encoder_destroy(struct drm_encoder *encoder)
623 struct sti_tvout_encoder *sti_encoder = to_sti_tvout_encoder(encoder);
625 drm_encoder_cleanup(encoder);
629 static int sti_tvout_late_register(struct drm_encoder *encoder)
631 struct sti_tvout *tvout = to_sti_tvout(encoder);
634 if (tvout->debugfs_registered)
637 ret = tvout_debugfs_init(tvout, encoder->dev->primary);
641 tvout->debugfs_registered = true;
645 static void sti_tvout_early_unregister(struct drm_encoder *encoder)
647 struct sti_tvout *tvout = to_sti_tvout(encoder);
649 if (!tvout->debugfs_registered)
652 tvout_debugfs_exit(tvout, encoder->dev->primary);
653 tvout->debugfs_registered = false;
656 static const struct drm_encoder_funcs sti_tvout_encoder_funcs = {
657 .destroy = sti_tvout_encoder_destroy,
658 .late_register = sti_tvout_late_register,
659 .early_unregister = sti_tvout_early_unregister,
662 static void sti_dvo_encoder_enable(struct drm_encoder *encoder)
664 struct sti_tvout *tvout = to_sti_tvout(encoder);
666 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
668 tvout_dvo_start(tvout, sti_crtc_is_main(encoder->crtc));
671 static void sti_dvo_encoder_disable(struct drm_encoder *encoder)
673 struct sti_tvout *tvout = to_sti_tvout(encoder);
675 /* Reset VIP register */
676 tvout_write(tvout, 0x0, TVO_VIP_DVO);
679 static const struct drm_encoder_helper_funcs sti_dvo_encoder_helper_funcs = {
680 .dpms = sti_tvout_encoder_dpms,
681 .mode_set = sti_tvout_encoder_mode_set,
682 .enable = sti_dvo_encoder_enable,
683 .disable = sti_dvo_encoder_disable,
686 static struct drm_encoder *
687 sti_tvout_create_dvo_encoder(struct drm_device *dev,
688 struct sti_tvout *tvout)
690 struct sti_tvout_encoder *encoder;
691 struct drm_encoder *drm_encoder;
693 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
697 encoder->tvout = tvout;
699 drm_encoder = (struct drm_encoder *)encoder;
701 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
702 drm_encoder->possible_clones = 1 << 0;
704 drm_encoder_init(dev, drm_encoder,
705 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_LVDS,
708 drm_encoder_helper_add(drm_encoder, &sti_dvo_encoder_helper_funcs);
713 static void sti_hda_encoder_enable(struct drm_encoder *encoder)
715 struct sti_tvout *tvout = to_sti_tvout(encoder);
717 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
719 tvout_hda_start(tvout, sti_crtc_is_main(encoder->crtc));
722 static void sti_hda_encoder_disable(struct drm_encoder *encoder)
724 struct sti_tvout *tvout = to_sti_tvout(encoder);
726 /* reset VIP register */
727 tvout_write(tvout, 0x0, TVO_VIP_HDF);
729 /* power down HD DAC */
730 tvout_write(tvout, 1, TVO_HD_DAC_CFG_OFF);
733 static const struct drm_encoder_helper_funcs sti_hda_encoder_helper_funcs = {
734 .dpms = sti_tvout_encoder_dpms,
735 .mode_set = sti_tvout_encoder_mode_set,
736 .commit = sti_hda_encoder_enable,
737 .disable = sti_hda_encoder_disable,
740 static struct drm_encoder *sti_tvout_create_hda_encoder(struct drm_device *dev,
741 struct sti_tvout *tvout)
743 struct sti_tvout_encoder *encoder;
744 struct drm_encoder *drm_encoder;
746 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
750 encoder->tvout = tvout;
752 drm_encoder = (struct drm_encoder *) encoder;
754 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
755 drm_encoder->possible_clones = 1 << 0;
757 drm_encoder_init(dev, drm_encoder,
758 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_DAC, NULL);
760 drm_encoder_helper_add(drm_encoder, &sti_hda_encoder_helper_funcs);
765 static void sti_hdmi_encoder_enable(struct drm_encoder *encoder)
767 struct sti_tvout *tvout = to_sti_tvout(encoder);
769 tvout_preformatter_set_matrix(tvout, &encoder->crtc->mode);
771 tvout_hdmi_start(tvout, sti_crtc_is_main(encoder->crtc));
774 static void sti_hdmi_encoder_disable(struct drm_encoder *encoder)
776 struct sti_tvout *tvout = to_sti_tvout(encoder);
778 /* reset VIP register */
779 tvout_write(tvout, 0x0, TVO_VIP_HDMI);
782 static const struct drm_encoder_helper_funcs sti_hdmi_encoder_helper_funcs = {
783 .dpms = sti_tvout_encoder_dpms,
784 .mode_set = sti_tvout_encoder_mode_set,
785 .commit = sti_hdmi_encoder_enable,
786 .disable = sti_hdmi_encoder_disable,
789 static struct drm_encoder *sti_tvout_create_hdmi_encoder(struct drm_device *dev,
790 struct sti_tvout *tvout)
792 struct sti_tvout_encoder *encoder;
793 struct drm_encoder *drm_encoder;
795 encoder = devm_kzalloc(tvout->dev, sizeof(*encoder), GFP_KERNEL);
799 encoder->tvout = tvout;
801 drm_encoder = (struct drm_encoder *) encoder;
803 drm_encoder->possible_crtcs = ENCODER_CRTC_MASK;
804 drm_encoder->possible_clones = 1 << 1;
806 drm_encoder_init(dev, drm_encoder,
807 &sti_tvout_encoder_funcs, DRM_MODE_ENCODER_TMDS, NULL);
809 drm_encoder_helper_add(drm_encoder, &sti_hdmi_encoder_helper_funcs);
814 static void sti_tvout_create_encoders(struct drm_device *dev,
815 struct sti_tvout *tvout)
817 tvout->hdmi = sti_tvout_create_hdmi_encoder(dev, tvout);
818 tvout->hda = sti_tvout_create_hda_encoder(dev, tvout);
819 tvout->dvo = sti_tvout_create_dvo_encoder(dev, tvout);
822 static void sti_tvout_destroy_encoders(struct sti_tvout *tvout)
825 drm_encoder_cleanup(tvout->hdmi);
829 drm_encoder_cleanup(tvout->hda);
833 drm_encoder_cleanup(tvout->dvo);
837 static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
839 struct sti_tvout *tvout = dev_get_drvdata(dev);
840 struct drm_device *drm_dev = data;
842 tvout->drm_dev = drm_dev;
844 sti_tvout_create_encoders(drm_dev, tvout);
849 static void sti_tvout_unbind(struct device *dev, struct device *master,
852 struct sti_tvout *tvout = dev_get_drvdata(dev);
854 sti_tvout_destroy_encoders(tvout);
857 static const struct component_ops sti_tvout_ops = {
858 .bind = sti_tvout_bind,
859 .unbind = sti_tvout_unbind,
862 static int sti_tvout_probe(struct platform_device *pdev)
864 struct device *dev = &pdev->dev;
865 struct device_node *node = dev->of_node;
866 struct sti_tvout *tvout;
867 struct resource *res;
869 DRM_INFO("%s\n", __func__);
874 tvout = devm_kzalloc(dev, sizeof(*tvout), GFP_KERNEL);
880 /* get Memory ressources */
881 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tvout-reg");
883 DRM_ERROR("Invalid glue resource\n");
886 tvout->regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
890 /* get reset resources */
891 tvout->reset = devm_reset_control_get(dev, "tvout");
892 /* take tvout out of reset */
893 if (!IS_ERR(tvout->reset))
894 reset_control_deassert(tvout->reset);
896 platform_set_drvdata(pdev, tvout);
898 return component_add(dev, &sti_tvout_ops);
901 static int sti_tvout_remove(struct platform_device *pdev)
903 component_del(&pdev->dev, &sti_tvout_ops);
907 static const struct of_device_id tvout_of_match[] = {
908 { .compatible = "st,stih416-tvout", },
909 { .compatible = "st,stih407-tvout", },
912 MODULE_DEVICE_TABLE(of, tvout_of_match);
914 struct platform_driver sti_tvout_driver = {
917 .owner = THIS_MODULE,
918 .of_match_table = tvout_of_match,
920 .probe = sti_tvout_probe,
921 .remove = sti_tvout_remove,
924 MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
925 MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
926 MODULE_LICENSE("GPL");