This source file includes following definitions.
- venc_write_reg
- venc_read_reg
- venc_write_config
- venc_reset
- venc_runtime_get
- venc_runtime_put
- venc_timings_to_config
- venc_power_on
- venc_power_off
- venc_display_enable
- venc_display_disable
- venc_set_timings
- venc_check_timings
- venc_get_timings
- venc_get_wss
- venc_set_wss
- venc_set_type
- venc_invert_vid_out_polarity
- venc_init_regulator
- venc_dump_regs
- venc_get_clocks
- venc_connect
- venc_disconnect
- venc_init_output
- venc_uninit_output
- venc_probe_of
- venc_bind
- venc_unbind
- venc_probe
- venc_remove
- venc_runtime_suspend
- venc_runtime_resume
- venc_init_platform_driver
- venc_uninit_platform_driver
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11 #define DSS_SUBSYS_NAME "VENC"
12
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/clk.h>
16 #include <linux/err.h>
17 #include <linux/io.h>
18 #include <linux/mutex.h>
19 #include <linux/completion.h>
20 #include <linux/delay.h>
21 #include <linux/string.h>
22 #include <linux/seq_file.h>
23 #include <linux/platform_device.h>
24 #include <linux/regulator/consumer.h>
25 #include <linux/pm_runtime.h>
26 #include <linux/of.h>
27 #include <linux/component.h>
28
29 #include <video/omapfb_dss.h>
30
31 #include "dss.h"
32 #include "dss_features.h"
33
34
35 #define VENC_REV_ID 0x00
36 #define VENC_STATUS 0x04
37 #define VENC_F_CONTROL 0x08
38 #define VENC_VIDOUT_CTRL 0x10
39 #define VENC_SYNC_CTRL 0x14
40 #define VENC_LLEN 0x1C
41 #define VENC_FLENS 0x20
42 #define VENC_HFLTR_CTRL 0x24
43 #define VENC_CC_CARR_WSS_CARR 0x28
44 #define VENC_C_PHASE 0x2C
45 #define VENC_GAIN_U 0x30
46 #define VENC_GAIN_V 0x34
47 #define VENC_GAIN_Y 0x38
48 #define VENC_BLACK_LEVEL 0x3C
49 #define VENC_BLANK_LEVEL 0x40
50 #define VENC_X_COLOR 0x44
51 #define VENC_M_CONTROL 0x48
52 #define VENC_BSTAMP_WSS_DATA 0x4C
53 #define VENC_S_CARR 0x50
54 #define VENC_LINE21 0x54
55 #define VENC_LN_SEL 0x58
56 #define VENC_L21__WC_CTL 0x5C
57 #define VENC_HTRIGGER_VTRIGGER 0x60
58 #define VENC_SAVID__EAVID 0x64
59 #define VENC_FLEN__FAL 0x68
60 #define VENC_LAL__PHASE_RESET 0x6C
61 #define VENC_HS_INT_START_STOP_X 0x70
62 #define VENC_HS_EXT_START_STOP_X 0x74
63 #define VENC_VS_INT_START_X 0x78
64 #define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C
65 #define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80
66 #define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84
67 #define VENC_VS_EXT_STOP_Y 0x88
68 #define VENC_AVID_START_STOP_X 0x90
69 #define VENC_AVID_START_STOP_Y 0x94
70 #define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0
71 #define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4
72 #define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8
73 #define VENC_TVDETGP_INT_START_STOP_X 0xB0
74 #define VENC_TVDETGP_INT_START_STOP_Y 0xB4
75 #define VENC_GEN_CTRL 0xB8
76 #define VENC_OUTPUT_CONTROL 0xC4
77 #define VENC_OUTPUT_TEST 0xC8
78 #define VENC_DAC_B__DAC_C 0xC8
79
80 struct venc_config {
81 u32 f_control;
82 u32 vidout_ctrl;
83 u32 sync_ctrl;
84 u32 llen;
85 u32 flens;
86 u32 hfltr_ctrl;
87 u32 cc_carr_wss_carr;
88 u32 c_phase;
89 u32 gain_u;
90 u32 gain_v;
91 u32 gain_y;
92 u32 black_level;
93 u32 blank_level;
94 u32 x_color;
95 u32 m_control;
96 u32 bstamp_wss_data;
97 u32 s_carr;
98 u32 line21;
99 u32 ln_sel;
100 u32 l21__wc_ctl;
101 u32 htrigger_vtrigger;
102 u32 savid__eavid;
103 u32 flen__fal;
104 u32 lal__phase_reset;
105 u32 hs_int_start_stop_x;
106 u32 hs_ext_start_stop_x;
107 u32 vs_int_start_x;
108 u32 vs_int_stop_x__vs_int_start_y;
109 u32 vs_int_stop_y__vs_ext_start_x;
110 u32 vs_ext_stop_x__vs_ext_start_y;
111 u32 vs_ext_stop_y;
112 u32 avid_start_stop_x;
113 u32 avid_start_stop_y;
114 u32 fid_int_start_x__fid_int_start_y;
115 u32 fid_int_offset_y__fid_ext_start_x;
116 u32 fid_ext_start_y__fid_ext_offset_y;
117 u32 tvdetgp_int_start_stop_x;
118 u32 tvdetgp_int_start_stop_y;
119 u32 gen_ctrl;
120 };
121
122
123 static const struct venc_config venc_config_pal_trm = {
124 .f_control = 0,
125 .vidout_ctrl = 1,
126 .sync_ctrl = 0x40,
127 .llen = 0x35F,
128 .flens = 0x270,
129 .hfltr_ctrl = 0,
130 .cc_carr_wss_carr = 0x2F7225ED,
131 .c_phase = 0,
132 .gain_u = 0x111,
133 .gain_v = 0x181,
134 .gain_y = 0x140,
135 .black_level = 0x3B,
136 .blank_level = 0x3B,
137 .x_color = 0x7,
138 .m_control = 0x2,
139 .bstamp_wss_data = 0x3F,
140 .s_carr = 0x2A098ACB,
141 .line21 = 0,
142 .ln_sel = 0x01290015,
143 .l21__wc_ctl = 0x0000F603,
144 .htrigger_vtrigger = 0,
145
146 .savid__eavid = 0x06A70108,
147 .flen__fal = 0x00180270,
148 .lal__phase_reset = 0x00040135,
149 .hs_int_start_stop_x = 0x00880358,
150 .hs_ext_start_stop_x = 0x000F035F,
151 .vs_int_start_x = 0x01A70000,
152 .vs_int_stop_x__vs_int_start_y = 0x000001A7,
153 .vs_int_stop_y__vs_ext_start_x = 0x01AF0000,
154 .vs_ext_stop_x__vs_ext_start_y = 0x000101AF,
155 .vs_ext_stop_y = 0x00000025,
156 .avid_start_stop_x = 0x03530083,
157 .avid_start_stop_y = 0x026C002E,
158 .fid_int_start_x__fid_int_start_y = 0x0001008A,
159 .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
160 .fid_ext_start_y__fid_ext_offset_y = 0x01380001,
161
162 .tvdetgp_int_start_stop_x = 0x00140001,
163 .tvdetgp_int_start_stop_y = 0x00010001,
164 .gen_ctrl = 0x00FF0000,
165 };
166
167
168 static const struct venc_config venc_config_ntsc_trm = {
169 .f_control = 0,
170 .vidout_ctrl = 1,
171 .sync_ctrl = 0x8040,
172 .llen = 0x359,
173 .flens = 0x20C,
174 .hfltr_ctrl = 0,
175 .cc_carr_wss_carr = 0x043F2631,
176 .c_phase = 0,
177 .gain_u = 0x102,
178 .gain_v = 0x16C,
179 .gain_y = 0x12F,
180 .black_level = 0x43,
181 .blank_level = 0x38,
182 .x_color = 0x7,
183 .m_control = 0x1,
184 .bstamp_wss_data = 0x38,
185 .s_carr = 0x21F07C1F,
186 .line21 = 0,
187 .ln_sel = 0x01310011,
188 .l21__wc_ctl = 0x0000F003,
189 .htrigger_vtrigger = 0,
190
191 .savid__eavid = 0x069300F4,
192 .flen__fal = 0x0016020C,
193 .lal__phase_reset = 0x00060107,
194 .hs_int_start_stop_x = 0x008E0350,
195 .hs_ext_start_stop_x = 0x000F0359,
196 .vs_int_start_x = 0x01A00000,
197 .vs_int_stop_x__vs_int_start_y = 0x020701A0,
198 .vs_int_stop_y__vs_ext_start_x = 0x01AC0024,
199 .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC,
200 .vs_ext_stop_y = 0x00000006,
201 .avid_start_stop_x = 0x03480078,
202 .avid_start_stop_y = 0x02060024,
203 .fid_int_start_x__fid_int_start_y = 0x0001008A,
204 .fid_int_offset_y__fid_ext_start_x = 0x01AC0106,
205 .fid_ext_start_y__fid_ext_offset_y = 0x01060006,
206
207 .tvdetgp_int_start_stop_x = 0x00140001,
208 .tvdetgp_int_start_stop_y = 0x00010001,
209 .gen_ctrl = 0x00F90000,
210 };
211
212 static const struct venc_config venc_config_pal_bdghi = {
213 .f_control = 0,
214 .vidout_ctrl = 0,
215 .sync_ctrl = 0,
216 .hfltr_ctrl = 0,
217 .x_color = 0,
218 .line21 = 0,
219 .ln_sel = 21,
220 .htrigger_vtrigger = 0,
221 .tvdetgp_int_start_stop_x = 0x00140001,
222 .tvdetgp_int_start_stop_y = 0x00010001,
223 .gen_ctrl = 0x00FB0000,
224
225 .llen = 864-1,
226 .flens = 625-1,
227 .cc_carr_wss_carr = 0x2F7625ED,
228 .c_phase = 0xDF,
229 .gain_u = 0x111,
230 .gain_v = 0x181,
231 .gain_y = 0x140,
232 .black_level = 0x3e,
233 .blank_level = 0x3e,
234 .m_control = 0<<2 | 1<<1,
235 .bstamp_wss_data = 0x42,
236 .s_carr = 0x2a098acb,
237 .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0,
238 .savid__eavid = 0x06A70108,
239 .flen__fal = 23<<16 | 624<<0,
240 .lal__phase_reset = 2<<17 | 310<<0,
241 .hs_int_start_stop_x = 0x00920358,
242 .hs_ext_start_stop_x = 0x000F035F,
243 .vs_int_start_x = 0x1a7<<16,
244 .vs_int_stop_x__vs_int_start_y = 0x000601A7,
245 .vs_int_stop_y__vs_ext_start_x = 0x01AF0036,
246 .vs_ext_stop_x__vs_ext_start_y = 0x27101af,
247 .vs_ext_stop_y = 0x05,
248 .avid_start_stop_x = 0x03530082,
249 .avid_start_stop_y = 0x0270002E,
250 .fid_int_start_x__fid_int_start_y = 0x0005008A,
251 .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
252 .fid_ext_start_y__fid_ext_offset_y = 0x01380005,
253 };
254
255 const struct omap_video_timings omap_dss_pal_timings = {
256 .x_res = 720,
257 .y_res = 574,
258 .pixelclock = 13500000,
259 .hsw = 64,
260 .hfp = 12,
261 .hbp = 68,
262 .vsw = 5,
263 .vfp = 5,
264 .vbp = 41,
265
266 .interlace = true,
267 };
268 EXPORT_SYMBOL(omap_dss_pal_timings);
269
270 const struct omap_video_timings omap_dss_ntsc_timings = {
271 .x_res = 720,
272 .y_res = 482,
273 .pixelclock = 13500000,
274 .hsw = 64,
275 .hfp = 16,
276 .hbp = 58,
277 .vsw = 6,
278 .vfp = 6,
279 .vbp = 31,
280
281 .interlace = true,
282 };
283 EXPORT_SYMBOL(omap_dss_ntsc_timings);
284
285 static struct {
286 struct platform_device *pdev;
287 void __iomem *base;
288 struct mutex venc_lock;
289 u32 wss_data;
290 struct regulator *vdda_dac_reg;
291
292 struct clk *tv_dac_clk;
293
294 struct omap_video_timings timings;
295 enum omap_dss_venc_type type;
296 bool invert_polarity;
297
298 struct omap_dss_device output;
299 } venc;
300
301 static inline void venc_write_reg(int idx, u32 val)
302 {
303 __raw_writel(val, venc.base + idx);
304 }
305
306 static inline u32 venc_read_reg(int idx)
307 {
308 u32 l = __raw_readl(venc.base + idx);
309 return l;
310 }
311
312 static void venc_write_config(const struct venc_config *config)
313 {
314 DSSDBG("write venc conf\n");
315
316 venc_write_reg(VENC_LLEN, config->llen);
317 venc_write_reg(VENC_FLENS, config->flens);
318 venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr);
319 venc_write_reg(VENC_C_PHASE, config->c_phase);
320 venc_write_reg(VENC_GAIN_U, config->gain_u);
321 venc_write_reg(VENC_GAIN_V, config->gain_v);
322 venc_write_reg(VENC_GAIN_Y, config->gain_y);
323 venc_write_reg(VENC_BLACK_LEVEL, config->black_level);
324 venc_write_reg(VENC_BLANK_LEVEL, config->blank_level);
325 venc_write_reg(VENC_M_CONTROL, config->m_control);
326 venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
327 venc.wss_data);
328 venc_write_reg(VENC_S_CARR, config->s_carr);
329 venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl);
330 venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid);
331 venc_write_reg(VENC_FLEN__FAL, config->flen__fal);
332 venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset);
333 venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x);
334 venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x);
335 venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x);
336 venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y,
337 config->vs_int_stop_x__vs_int_start_y);
338 venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X,
339 config->vs_int_stop_y__vs_ext_start_x);
340 venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y,
341 config->vs_ext_stop_x__vs_ext_start_y);
342 venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y);
343 venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x);
344 venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y);
345 venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y,
346 config->fid_int_start_x__fid_int_start_y);
347 venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X,
348 config->fid_int_offset_y__fid_ext_start_x);
349 venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y,
350 config->fid_ext_start_y__fid_ext_offset_y);
351
352 venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C));
353 venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl);
354 venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl);
355 venc_write_reg(VENC_X_COLOR, config->x_color);
356 venc_write_reg(VENC_LINE21, config->line21);
357 venc_write_reg(VENC_LN_SEL, config->ln_sel);
358 venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger);
359 venc_write_reg(VENC_TVDETGP_INT_START_STOP_X,
360 config->tvdetgp_int_start_stop_x);
361 venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y,
362 config->tvdetgp_int_start_stop_y);
363 venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl);
364 venc_write_reg(VENC_F_CONTROL, config->f_control);
365 venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl);
366 }
367
368 static void venc_reset(void)
369 {
370 int t = 1000;
371
372 venc_write_reg(VENC_F_CONTROL, 1<<8);
373 while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) {
374 if (--t == 0) {
375 DSSERR("Failed to reset venc\n");
376 return;
377 }
378 }
379
380 #ifdef CONFIG_FB_OMAP2_DSS_SLEEP_AFTER_VENC_RESET
381
382
383 msleep(20);
384 #endif
385 }
386
387 static int venc_runtime_get(void)
388 {
389 int r;
390
391 DSSDBG("venc_runtime_get\n");
392
393 r = pm_runtime_get_sync(&venc.pdev->dev);
394 WARN_ON(r < 0);
395 return r < 0 ? r : 0;
396 }
397
398 static void venc_runtime_put(void)
399 {
400 int r;
401
402 DSSDBG("venc_runtime_put\n");
403
404 r = pm_runtime_put_sync(&venc.pdev->dev);
405 WARN_ON(r < 0 && r != -ENOSYS);
406 }
407
408 static const struct venc_config *venc_timings_to_config(
409 struct omap_video_timings *timings)
410 {
411 if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
412 return &venc_config_pal_trm;
413
414 if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
415 return &venc_config_ntsc_trm;
416
417 BUG();
418 return NULL;
419 }
420
421 static int venc_power_on(struct omap_dss_device *dssdev)
422 {
423 struct omap_overlay_manager *mgr = venc.output.manager;
424 u32 l;
425 int r;
426
427 r = venc_runtime_get();
428 if (r)
429 goto err0;
430
431 venc_reset();
432 venc_write_config(venc_timings_to_config(&venc.timings));
433
434 dss_set_venc_output(venc.type);
435 dss_set_dac_pwrdn_bgz(1);
436
437 l = 0;
438
439 if (venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE)
440 l |= 1 << 1;
441 else
442 l |= (1 << 0) | (1 << 2);
443
444 if (venc.invert_polarity == false)
445 l |= 1 << 3;
446
447 venc_write_reg(VENC_OUTPUT_CONTROL, l);
448
449 dss_mgr_set_timings(mgr, &venc.timings);
450
451 r = regulator_enable(venc.vdda_dac_reg);
452 if (r)
453 goto err1;
454
455 r = dss_mgr_enable(mgr);
456 if (r)
457 goto err2;
458
459 return 0;
460
461 err2:
462 regulator_disable(venc.vdda_dac_reg);
463 err1:
464 venc_write_reg(VENC_OUTPUT_CONTROL, 0);
465 dss_set_dac_pwrdn_bgz(0);
466
467 venc_runtime_put();
468 err0:
469 return r;
470 }
471
472 static void venc_power_off(struct omap_dss_device *dssdev)
473 {
474 struct omap_overlay_manager *mgr = venc.output.manager;
475
476 venc_write_reg(VENC_OUTPUT_CONTROL, 0);
477 dss_set_dac_pwrdn_bgz(0);
478
479 dss_mgr_disable(mgr);
480
481 regulator_disable(venc.vdda_dac_reg);
482
483 venc_runtime_put();
484 }
485
486 static int venc_display_enable(struct omap_dss_device *dssdev)
487 {
488 struct omap_dss_device *out = &venc.output;
489 int r;
490
491 DSSDBG("venc_display_enable\n");
492
493 mutex_lock(&venc.venc_lock);
494
495 if (out->manager == NULL) {
496 DSSERR("Failed to enable display: no output/manager\n");
497 r = -ENODEV;
498 goto err0;
499 }
500
501 r = venc_power_on(dssdev);
502 if (r)
503 goto err0;
504
505 venc.wss_data = 0;
506
507 mutex_unlock(&venc.venc_lock);
508
509 return 0;
510 err0:
511 mutex_unlock(&venc.venc_lock);
512 return r;
513 }
514
515 static void venc_display_disable(struct omap_dss_device *dssdev)
516 {
517 DSSDBG("venc_display_disable\n");
518
519 mutex_lock(&venc.venc_lock);
520
521 venc_power_off(dssdev);
522
523 mutex_unlock(&venc.venc_lock);
524 }
525
526 static void venc_set_timings(struct omap_dss_device *dssdev,
527 struct omap_video_timings *timings)
528 {
529 DSSDBG("venc_set_timings\n");
530
531 mutex_lock(&venc.venc_lock);
532
533
534 if (memcmp(&venc.timings, timings, sizeof(*timings)))
535 venc.wss_data = 0;
536
537 venc.timings = *timings;
538
539 dispc_set_tv_pclk(13500000);
540
541 mutex_unlock(&venc.venc_lock);
542 }
543
544 static int venc_check_timings(struct omap_dss_device *dssdev,
545 struct omap_video_timings *timings)
546 {
547 DSSDBG("venc_check_timings\n");
548
549 if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
550 return 0;
551
552 if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
553 return 0;
554
555 return -EINVAL;
556 }
557
558 static void venc_get_timings(struct omap_dss_device *dssdev,
559 struct omap_video_timings *timings)
560 {
561 mutex_lock(&venc.venc_lock);
562
563 *timings = venc.timings;
564
565 mutex_unlock(&venc.venc_lock);
566 }
567
568 static u32 venc_get_wss(struct omap_dss_device *dssdev)
569 {
570
571 return (venc.wss_data >> 8) ^ 0xfffff;
572 }
573
574 static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss)
575 {
576 const struct venc_config *config;
577 int r;
578
579 DSSDBG("venc_set_wss\n");
580
581 mutex_lock(&venc.venc_lock);
582
583 config = venc_timings_to_config(&venc.timings);
584
585
586 venc.wss_data = (wss ^ 0xfffff) << 8;
587
588 r = venc_runtime_get();
589 if (r)
590 goto err;
591
592 venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
593 venc.wss_data);
594
595 venc_runtime_put();
596
597 err:
598 mutex_unlock(&venc.venc_lock);
599
600 return r;
601 }
602
603 static void venc_set_type(struct omap_dss_device *dssdev,
604 enum omap_dss_venc_type type)
605 {
606 mutex_lock(&venc.venc_lock);
607
608 venc.type = type;
609
610 mutex_unlock(&venc.venc_lock);
611 }
612
613 static void venc_invert_vid_out_polarity(struct omap_dss_device *dssdev,
614 bool invert_polarity)
615 {
616 mutex_lock(&venc.venc_lock);
617
618 venc.invert_polarity = invert_polarity;
619
620 mutex_unlock(&venc.venc_lock);
621 }
622
623 static int venc_init_regulator(void)
624 {
625 struct regulator *vdda_dac;
626
627 if (venc.vdda_dac_reg != NULL)
628 return 0;
629
630 if (venc.pdev->dev.of_node)
631 vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda");
632 else
633 vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda_dac");
634
635 if (IS_ERR(vdda_dac)) {
636 if (PTR_ERR(vdda_dac) != -EPROBE_DEFER)
637 DSSERR("can't get VDDA_DAC regulator\n");
638 return PTR_ERR(vdda_dac);
639 }
640
641 venc.vdda_dac_reg = vdda_dac;
642
643 return 0;
644 }
645
646 static void venc_dump_regs(struct seq_file *s)
647 {
648 #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r))
649
650 if (venc_runtime_get())
651 return;
652
653 DUMPREG(VENC_F_CONTROL);
654 DUMPREG(VENC_VIDOUT_CTRL);
655 DUMPREG(VENC_SYNC_CTRL);
656 DUMPREG(VENC_LLEN);
657 DUMPREG(VENC_FLENS);
658 DUMPREG(VENC_HFLTR_CTRL);
659 DUMPREG(VENC_CC_CARR_WSS_CARR);
660 DUMPREG(VENC_C_PHASE);
661 DUMPREG(VENC_GAIN_U);
662 DUMPREG(VENC_GAIN_V);
663 DUMPREG(VENC_GAIN_Y);
664 DUMPREG(VENC_BLACK_LEVEL);
665 DUMPREG(VENC_BLANK_LEVEL);
666 DUMPREG(VENC_X_COLOR);
667 DUMPREG(VENC_M_CONTROL);
668 DUMPREG(VENC_BSTAMP_WSS_DATA);
669 DUMPREG(VENC_S_CARR);
670 DUMPREG(VENC_LINE21);
671 DUMPREG(VENC_LN_SEL);
672 DUMPREG(VENC_L21__WC_CTL);
673 DUMPREG(VENC_HTRIGGER_VTRIGGER);
674 DUMPREG(VENC_SAVID__EAVID);
675 DUMPREG(VENC_FLEN__FAL);
676 DUMPREG(VENC_LAL__PHASE_RESET);
677 DUMPREG(VENC_HS_INT_START_STOP_X);
678 DUMPREG(VENC_HS_EXT_START_STOP_X);
679 DUMPREG(VENC_VS_INT_START_X);
680 DUMPREG(VENC_VS_INT_STOP_X__VS_INT_START_Y);
681 DUMPREG(VENC_VS_INT_STOP_Y__VS_EXT_START_X);
682 DUMPREG(VENC_VS_EXT_STOP_X__VS_EXT_START_Y);
683 DUMPREG(VENC_VS_EXT_STOP_Y);
684 DUMPREG(VENC_AVID_START_STOP_X);
685 DUMPREG(VENC_AVID_START_STOP_Y);
686 DUMPREG(VENC_FID_INT_START_X__FID_INT_START_Y);
687 DUMPREG(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X);
688 DUMPREG(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y);
689 DUMPREG(VENC_TVDETGP_INT_START_STOP_X);
690 DUMPREG(VENC_TVDETGP_INT_START_STOP_Y);
691 DUMPREG(VENC_GEN_CTRL);
692 DUMPREG(VENC_OUTPUT_CONTROL);
693 DUMPREG(VENC_OUTPUT_TEST);
694
695 venc_runtime_put();
696
697 #undef DUMPREG
698 }
699
700 static int venc_get_clocks(struct platform_device *pdev)
701 {
702 struct clk *clk;
703
704 if (dss_has_feature(FEAT_VENC_REQUIRES_TV_DAC_CLK)) {
705 clk = devm_clk_get(&pdev->dev, "tv_dac_clk");
706 if (IS_ERR(clk)) {
707 DSSERR("can't get tv_dac_clk\n");
708 return PTR_ERR(clk);
709 }
710 } else {
711 clk = NULL;
712 }
713
714 venc.tv_dac_clk = clk;
715
716 return 0;
717 }
718
719 static int venc_connect(struct omap_dss_device *dssdev,
720 struct omap_dss_device *dst)
721 {
722 struct omap_overlay_manager *mgr;
723 int r;
724
725 r = venc_init_regulator();
726 if (r)
727 return r;
728
729 mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel);
730 if (!mgr)
731 return -ENODEV;
732
733 r = dss_mgr_connect(mgr, dssdev);
734 if (r)
735 return r;
736
737 r = omapdss_output_set_device(dssdev, dst);
738 if (r) {
739 DSSERR("failed to connect output to new device: %s\n",
740 dst->name);
741 dss_mgr_disconnect(mgr, dssdev);
742 return r;
743 }
744
745 return 0;
746 }
747
748 static void venc_disconnect(struct omap_dss_device *dssdev,
749 struct omap_dss_device *dst)
750 {
751 WARN_ON(dst != dssdev->dst);
752
753 if (dst != dssdev->dst)
754 return;
755
756 omapdss_output_unset_device(dssdev);
757
758 if (dssdev->manager)
759 dss_mgr_disconnect(dssdev->manager, dssdev);
760 }
761
762 static const struct omapdss_atv_ops venc_ops = {
763 .connect = venc_connect,
764 .disconnect = venc_disconnect,
765
766 .enable = venc_display_enable,
767 .disable = venc_display_disable,
768
769 .check_timings = venc_check_timings,
770 .set_timings = venc_set_timings,
771 .get_timings = venc_get_timings,
772
773 .set_type = venc_set_type,
774 .invert_vid_out_polarity = venc_invert_vid_out_polarity,
775
776 .set_wss = venc_set_wss,
777 .get_wss = venc_get_wss,
778 };
779
780 static void venc_init_output(struct platform_device *pdev)
781 {
782 struct omap_dss_device *out = &venc.output;
783
784 out->dev = &pdev->dev;
785 out->id = OMAP_DSS_OUTPUT_VENC;
786 out->output_type = OMAP_DISPLAY_TYPE_VENC;
787 out->name = "venc.0";
788 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
789 out->ops.atv = &venc_ops;
790 out->owner = THIS_MODULE;
791
792 omapdss_register_output(out);
793 }
794
795 static void venc_uninit_output(struct platform_device *pdev)
796 {
797 struct omap_dss_device *out = &venc.output;
798
799 omapdss_unregister_output(out);
800 }
801
802 static int venc_probe_of(struct platform_device *pdev)
803 {
804 struct device_node *node = pdev->dev.of_node;
805 struct device_node *ep;
806 u32 channels;
807 int r;
808
809 ep = omapdss_of_get_first_endpoint(node);
810 if (!ep)
811 return 0;
812
813 venc.invert_polarity = of_property_read_bool(ep, "ti,invert-polarity");
814
815 r = of_property_read_u32(ep, "ti,channels", &channels);
816 if (r) {
817 dev_err(&pdev->dev,
818 "failed to read property 'ti,channels': %d\n", r);
819 goto err;
820 }
821
822 switch (channels) {
823 case 1:
824 venc.type = OMAP_DSS_VENC_TYPE_COMPOSITE;
825 break;
826 case 2:
827 venc.type = OMAP_DSS_VENC_TYPE_SVIDEO;
828 break;
829 default:
830 dev_err(&pdev->dev, "bad channel propert '%d'\n", channels);
831 r = -EINVAL;
832 goto err;
833 }
834
835 of_node_put(ep);
836
837 return 0;
838 err:
839 of_node_put(ep);
840
841 return 0;
842 }
843
844
845 static int venc_bind(struct device *dev, struct device *master, void *data)
846 {
847 struct platform_device *pdev = to_platform_device(dev);
848 u8 rev_id;
849 struct resource *venc_mem;
850 int r;
851
852 venc.pdev = pdev;
853
854 mutex_init(&venc.venc_lock);
855
856 venc.wss_data = 0;
857
858 venc_mem = platform_get_resource(venc.pdev, IORESOURCE_MEM, 0);
859 if (!venc_mem) {
860 DSSERR("can't get IORESOURCE_MEM VENC\n");
861 return -EINVAL;
862 }
863
864 venc.base = devm_ioremap(&pdev->dev, venc_mem->start,
865 resource_size(venc_mem));
866 if (!venc.base) {
867 DSSERR("can't ioremap VENC\n");
868 return -ENOMEM;
869 }
870
871 r = venc_get_clocks(pdev);
872 if (r)
873 return r;
874
875 pm_runtime_enable(&pdev->dev);
876
877 r = venc_runtime_get();
878 if (r)
879 goto err_runtime_get;
880
881 rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
882 dev_dbg(&pdev->dev, "OMAP VENC rev %d\n", rev_id);
883
884 venc_runtime_put();
885
886 if (pdev->dev.of_node) {
887 r = venc_probe_of(pdev);
888 if (r) {
889 DSSERR("Invalid DT data\n");
890 goto err_probe_of;
891 }
892 }
893
894 dss_debugfs_create_file("venc", venc_dump_regs);
895
896 venc_init_output(pdev);
897
898 return 0;
899
900 err_probe_of:
901 err_runtime_get:
902 pm_runtime_disable(&pdev->dev);
903 return r;
904 }
905
906 static void venc_unbind(struct device *dev, struct device *master, void *data)
907 {
908 struct platform_device *pdev = to_platform_device(dev);
909
910 venc_uninit_output(pdev);
911
912 pm_runtime_disable(&pdev->dev);
913 }
914
915 static const struct component_ops venc_component_ops = {
916 .bind = venc_bind,
917 .unbind = venc_unbind,
918 };
919
920 static int venc_probe(struct platform_device *pdev)
921 {
922 return component_add(&pdev->dev, &venc_component_ops);
923 }
924
925 static int venc_remove(struct platform_device *pdev)
926 {
927 component_del(&pdev->dev, &venc_component_ops);
928 return 0;
929 }
930
931 static int venc_runtime_suspend(struct device *dev)
932 {
933 if (venc.tv_dac_clk)
934 clk_disable_unprepare(venc.tv_dac_clk);
935
936 dispc_runtime_put();
937
938 return 0;
939 }
940
941 static int venc_runtime_resume(struct device *dev)
942 {
943 int r;
944
945 r = dispc_runtime_get();
946 if (r < 0)
947 return r;
948
949 if (venc.tv_dac_clk)
950 clk_prepare_enable(venc.tv_dac_clk);
951
952 return 0;
953 }
954
955 static const struct dev_pm_ops venc_pm_ops = {
956 .runtime_suspend = venc_runtime_suspend,
957 .runtime_resume = venc_runtime_resume,
958 };
959
960 static const struct of_device_id venc_of_match[] = {
961 { .compatible = "ti,omap2-venc", },
962 { .compatible = "ti,omap3-venc", },
963 { .compatible = "ti,omap4-venc", },
964 {},
965 };
966
967 static struct platform_driver omap_venchw_driver = {
968 .probe = venc_probe,
969 .remove = venc_remove,
970 .driver = {
971 .name = "omapdss_venc",
972 .pm = &venc_pm_ops,
973 .of_match_table = venc_of_match,
974 .suppress_bind_attrs = true,
975 },
976 };
977
978 int __init venc_init_platform_driver(void)
979 {
980 return platform_driver_register(&omap_venchw_driver);
981 }
982
983 void venc_uninit_platform_driver(void)
984 {
985 platform_driver_unregister(&omap_venchw_driver);
986 }