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venc.c
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1 /*
2  * linux/drivers/video/omap2/dss/venc.c
3  *
4  * Copyright (C) 2009 Nokia Corporation
5  * Author: Tomi Valkeinen <[email protected]>
6  *
7  * VENC settings from TI's DSS driver
8  *
9  * This program is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU General Public License version 2 as published by
11  * the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful, but WITHOUT
14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16  * more details.
17  *
18  * You should have received a copy of the GNU General Public License along with
19  * this program. If not, see <http://www.gnu.org/licenses/>.
20  */
21 
22 #define DSS_SUBSYS_NAME "VENC"
23 
24 #include <linux/kernel.h>
25 #include <linux/module.h>
26 #include <linux/clk.h>
27 #include <linux/err.h>
28 #include <linux/io.h>
29 #include <linux/mutex.h>
30 #include <linux/completion.h>
31 #include <linux/delay.h>
32 #include <linux/string.h>
33 #include <linux/seq_file.h>
34 #include <linux/platform_device.h>
36 #include <linux/pm_runtime.h>
37 
38 #include <video/omapdss.h>
39 
40 #include "dss.h"
41 #include "dss_features.h"
42 
43 /* Venc registers */
44 #define VENC_REV_ID 0x00
45 #define VENC_STATUS 0x04
46 #define VENC_F_CONTROL 0x08
47 #define VENC_VIDOUT_CTRL 0x10
48 #define VENC_SYNC_CTRL 0x14
49 #define VENC_LLEN 0x1C
50 #define VENC_FLENS 0x20
51 #define VENC_HFLTR_CTRL 0x24
52 #define VENC_CC_CARR_WSS_CARR 0x28
53 #define VENC_C_PHASE 0x2C
54 #define VENC_GAIN_U 0x30
55 #define VENC_GAIN_V 0x34
56 #define VENC_GAIN_Y 0x38
57 #define VENC_BLACK_LEVEL 0x3C
58 #define VENC_BLANK_LEVEL 0x40
59 #define VENC_X_COLOR 0x44
60 #define VENC_M_CONTROL 0x48
61 #define VENC_BSTAMP_WSS_DATA 0x4C
62 #define VENC_S_CARR 0x50
63 #define VENC_LINE21 0x54
64 #define VENC_LN_SEL 0x58
65 #define VENC_L21__WC_CTL 0x5C
66 #define VENC_HTRIGGER_VTRIGGER 0x60
67 #define VENC_SAVID__EAVID 0x64
68 #define VENC_FLEN__FAL 0x68
69 #define VENC_LAL__PHASE_RESET 0x6C
70 #define VENC_HS_INT_START_STOP_X 0x70
71 #define VENC_HS_EXT_START_STOP_X 0x74
72 #define VENC_VS_INT_START_X 0x78
73 #define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C
74 #define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80
75 #define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84
76 #define VENC_VS_EXT_STOP_Y 0x88
77 #define VENC_AVID_START_STOP_X 0x90
78 #define VENC_AVID_START_STOP_Y 0x94
79 #define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0
80 #define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4
81 #define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8
82 #define VENC_TVDETGP_INT_START_STOP_X 0xB0
83 #define VENC_TVDETGP_INT_START_STOP_Y 0xB4
84 #define VENC_GEN_CTRL 0xB8
85 #define VENC_OUTPUT_CONTROL 0xC4
86 #define VENC_OUTPUT_TEST 0xC8
87 #define VENC_DAC_B__DAC_C 0xC8
88 
89 struct venc_config {
129 };
130 
131 /* from TRM */
132 static const struct venc_config venc_config_pal_trm = {
133  .f_control = 0,
134  .vidout_ctrl = 1,
135  .sync_ctrl = 0x40,
136  .llen = 0x35F, /* 863 */
137  .flens = 0x270, /* 624 */
138  .hfltr_ctrl = 0,
139  .cc_carr_wss_carr = 0x2F7225ED,
140  .c_phase = 0,
141  .gain_u = 0x111,
142  .gain_v = 0x181,
143  .gain_y = 0x140,
144  .black_level = 0x3B,
145  .blank_level = 0x3B,
146  .x_color = 0x7,
147  .m_control = 0x2,
148  .bstamp_wss_data = 0x3F,
149  .s_carr = 0x2A098ACB,
150  .line21 = 0,
151  .ln_sel = 0x01290015,
152  .l21__wc_ctl = 0x0000F603,
153  .htrigger_vtrigger = 0,
154 
155  .savid__eavid = 0x06A70108,
156  .flen__fal = 0x00180270,
157  .lal__phase_reset = 0x00040135,
158  .hs_int_start_stop_x = 0x00880358,
159  .hs_ext_start_stop_x = 0x000F035F,
160  .vs_int_start_x = 0x01A70000,
161  .vs_int_stop_x__vs_int_start_y = 0x000001A7,
162  .vs_int_stop_y__vs_ext_start_x = 0x01AF0000,
163  .vs_ext_stop_x__vs_ext_start_y = 0x000101AF,
164  .vs_ext_stop_y = 0x00000025,
165  .avid_start_stop_x = 0x03530083,
166  .avid_start_stop_y = 0x026C002E,
167  .fid_int_start_x__fid_int_start_y = 0x0001008A,
168  .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
169  .fid_ext_start_y__fid_ext_offset_y = 0x01380001,
170 
171  .tvdetgp_int_start_stop_x = 0x00140001,
172  .tvdetgp_int_start_stop_y = 0x00010001,
173  .gen_ctrl = 0x00FF0000,
174 };
175 
176 /* from TRM */
177 static const struct venc_config venc_config_ntsc_trm = {
178  .f_control = 0,
179  .vidout_ctrl = 1,
180  .sync_ctrl = 0x8040,
181  .llen = 0x359,
182  .flens = 0x20C,
183  .hfltr_ctrl = 0,
184  .cc_carr_wss_carr = 0x043F2631,
185  .c_phase = 0,
186  .gain_u = 0x102,
187  .gain_v = 0x16C,
188  .gain_y = 0x12F,
189  .black_level = 0x43,
190  .blank_level = 0x38,
191  .x_color = 0x7,
192  .m_control = 0x1,
193  .bstamp_wss_data = 0x38,
194  .s_carr = 0x21F07C1F,
195  .line21 = 0,
196  .ln_sel = 0x01310011,
197  .l21__wc_ctl = 0x0000F003,
198  .htrigger_vtrigger = 0,
199 
200  .savid__eavid = 0x069300F4,
201  .flen__fal = 0x0016020C,
202  .lal__phase_reset = 0x00060107,
203  .hs_int_start_stop_x = 0x008E0350,
204  .hs_ext_start_stop_x = 0x000F0359,
205  .vs_int_start_x = 0x01A00000,
206  .vs_int_stop_x__vs_int_start_y = 0x020701A0,
207  .vs_int_stop_y__vs_ext_start_x = 0x01AC0024,
208  .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC,
209  .vs_ext_stop_y = 0x00000006,
210  .avid_start_stop_x = 0x03480078,
211  .avid_start_stop_y = 0x02060024,
212  .fid_int_start_x__fid_int_start_y = 0x0001008A,
213  .fid_int_offset_y__fid_ext_start_x = 0x01AC0106,
214  .fid_ext_start_y__fid_ext_offset_y = 0x01060006,
215 
216  .tvdetgp_int_start_stop_x = 0x00140001,
217  .tvdetgp_int_start_stop_y = 0x00010001,
218  .gen_ctrl = 0x00F90000,
219 };
220 
221 static const struct venc_config venc_config_pal_bdghi = {
222  .f_control = 0,
223  .vidout_ctrl = 0,
224  .sync_ctrl = 0,
225  .hfltr_ctrl = 0,
226  .x_color = 0,
227  .line21 = 0,
228  .ln_sel = 21,
229  .htrigger_vtrigger = 0,
230  .tvdetgp_int_start_stop_x = 0x00140001,
231  .tvdetgp_int_start_stop_y = 0x00010001,
232  .gen_ctrl = 0x00FB0000,
233 
234  .llen = 864-1,
235  .flens = 625-1,
236  .cc_carr_wss_carr = 0x2F7625ED,
237  .c_phase = 0xDF,
238  .gain_u = 0x111,
239  .gain_v = 0x181,
240  .gain_y = 0x140,
241  .black_level = 0x3e,
242  .blank_level = 0x3e,
243  .m_control = 0<<2 | 1<<1,
244  .bstamp_wss_data = 0x42,
245  .s_carr = 0x2a098acb,
246  .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0,
247  .savid__eavid = 0x06A70108,
248  .flen__fal = 23<<16 | 624<<0,
249  .lal__phase_reset = 2<<17 | 310<<0,
250  .hs_int_start_stop_x = 0x00920358,
251  .hs_ext_start_stop_x = 0x000F035F,
252  .vs_int_start_x = 0x1a7<<16,
253  .vs_int_stop_x__vs_int_start_y = 0x000601A7,
254  .vs_int_stop_y__vs_ext_start_x = 0x01AF0036,
255  .vs_ext_stop_x__vs_ext_start_y = 0x27101af,
256  .vs_ext_stop_y = 0x05,
257  .avid_start_stop_x = 0x03530082,
258  .avid_start_stop_y = 0x0270002E,
259  .fid_int_start_x__fid_int_start_y = 0x0005008A,
260  .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
261  .fid_ext_start_y__fid_ext_offset_y = 0x01380005,
262 };
263 
265  .x_res = 720,
266  .y_res = 574,
267  .pixel_clock = 13500,
268  .hsw = 64,
269  .hfp = 12,
270  .hbp = 68,
271  .vsw = 5,
272  .vfp = 5,
273  .vbp = 41,
274 
275  .interlace = true,
276 };
277 EXPORT_SYMBOL(omap_dss_pal_timings);
278 
280  .x_res = 720,
281  .y_res = 482,
282  .pixel_clock = 13500,
283  .hsw = 64,
284  .hfp = 16,
285  .hbp = 58,
286  .vsw = 6,
287  .vfp = 6,
288  .vbp = 31,
289 
290  .interlace = true,
291 };
292 EXPORT_SYMBOL(omap_dss_ntsc_timings);
293 
294 static struct {
296  void __iomem *base;
297  struct mutex venc_lock;
300 
301  struct clk *tv_dac_clk;
302 
306 
308 } venc;
309 
310 static inline void venc_write_reg(int idx, u32 val)
311 {
312  __raw_writel(val, venc.base + idx);
313 }
314 
315 static inline u32 venc_read_reg(int idx)
316 {
317  u32 l = __raw_readl(venc.base + idx);
318  return l;
319 }
320 
321 static void venc_write_config(const struct venc_config *config)
322 {
323  DSSDBG("write venc conf\n");
324 
325  venc_write_reg(VENC_LLEN, config->llen);
326  venc_write_reg(VENC_FLENS, config->flens);
327  venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr);
328  venc_write_reg(VENC_C_PHASE, config->c_phase);
329  venc_write_reg(VENC_GAIN_U, config->gain_u);
330  venc_write_reg(VENC_GAIN_V, config->gain_v);
331  venc_write_reg(VENC_GAIN_Y, config->gain_y);
332  venc_write_reg(VENC_BLACK_LEVEL, config->black_level);
333  venc_write_reg(VENC_BLANK_LEVEL, config->blank_level);
334  venc_write_reg(VENC_M_CONTROL, config->m_control);
335  venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
336  venc.wss_data);
337  venc_write_reg(VENC_S_CARR, config->s_carr);
338  venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl);
339  venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid);
340  venc_write_reg(VENC_FLEN__FAL, config->flen__fal);
341  venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset);
342  venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x);
343  venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x);
344  venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x);
345  venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y,
347  venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X,
349  venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y,
351  venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y);
352  venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x);
353  venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y);
360 
361  venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C));
362  venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl);
363  venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl);
364  venc_write_reg(VENC_X_COLOR, config->x_color);
365  venc_write_reg(VENC_LINE21, config->line21);
366  venc_write_reg(VENC_LN_SEL, config->ln_sel);
367  venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger);
368  venc_write_reg(VENC_TVDETGP_INT_START_STOP_X,
369  config->tvdetgp_int_start_stop_x);
370  venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y,
371  config->tvdetgp_int_start_stop_y);
372  venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl);
373  venc_write_reg(VENC_F_CONTROL, config->f_control);
374  venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl);
375 }
376 
377 static void venc_reset(void)
378 {
379  int t = 1000;
380 
381  venc_write_reg(VENC_F_CONTROL, 1<<8);
382  while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) {
383  if (--t == 0) {
384  DSSERR("Failed to reset venc\n");
385  return;
386  }
387  }
388 
389 #ifdef CONFIG_OMAP2_DSS_SLEEP_AFTER_VENC_RESET
390  /* the magical sleep that makes things work */
391  /* XXX more info? What bug this circumvents? */
392  msleep(20);
393 #endif
394 }
395 
396 static int venc_runtime_get(void)
397 {
398  int r;
399 
400  DSSDBG("venc_runtime_get\n");
401 
402  r = pm_runtime_get_sync(&venc.pdev->dev);
403  WARN_ON(r < 0);
404  return r < 0 ? r : 0;
405 }
406 
407 static void venc_runtime_put(void)
408 {
409  int r;
410 
411  DSSDBG("venc_runtime_put\n");
412 
413  r = pm_runtime_put_sync(&venc.pdev->dev);
414  WARN_ON(r < 0 && r != -ENOSYS);
415 }
416 
417 static const struct venc_config *venc_timings_to_config(
418  struct omap_video_timings *timings)
419 {
420  if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
421  return &venc_config_pal_trm;
422 
423  if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
424  return &venc_config_ntsc_trm;
425 
426  BUG();
427  return NULL;
428 }
429 
430 static int venc_power_on(struct omap_dss_device *dssdev)
431 {
432  struct omap_overlay_manager *mgr = dssdev->output->manager;
433  u32 l;
434  int r;
435 
436  r = venc_runtime_get();
437  if (r)
438  goto err0;
439 
440  venc_reset();
441  venc_write_config(venc_timings_to_config(&venc.timings));
442 
443  dss_set_venc_output(venc.type);
445 
446  l = 0;
447 
448  if (venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE)
449  l |= 1 << 1;
450  else /* S-Video */
451  l |= (1 << 0) | (1 << 2);
452 
453  if (venc.invert_polarity == false)
454  l |= 1 << 3;
455 
456  venc_write_reg(VENC_OUTPUT_CONTROL, l);
457 
458  dss_mgr_set_timings(mgr, &venc.timings);
459 
460  r = regulator_enable(venc.vdda_dac_reg);
461  if (r)
462  goto err1;
463 
464  r = dss_mgr_enable(mgr);
465  if (r)
466  goto err2;
467 
468  return 0;
469 
470 err2:
471  regulator_disable(venc.vdda_dac_reg);
472 err1:
473  venc_write_reg(VENC_OUTPUT_CONTROL, 0);
475 
476  venc_runtime_put();
477 err0:
478  return r;
479 }
480 
481 static void venc_power_off(struct omap_dss_device *dssdev)
482 {
483  struct omap_overlay_manager *mgr = dssdev->output->manager;
484 
485  venc_write_reg(VENC_OUTPUT_CONTROL, 0);
487 
488  dss_mgr_disable(mgr);
489 
490  regulator_disable(venc.vdda_dac_reg);
491 
492  venc_runtime_put();
493 }
494 
495 unsigned long venc_get_pixel_clock(void)
496 {
497  /* VENC Pixel Clock in Mhz */
498  return 13500000;
499 }
500 
502 {
503  struct omap_dss_output *out = dssdev->output;
504  int r;
505 
506  DSSDBG("venc_display_enable\n");
507 
508  mutex_lock(&venc.venc_lock);
509 
510  if (out == NULL || out->manager == NULL) {
511  DSSERR("Failed to enable display: no output/manager\n");
512  r = -ENODEV;
513  goto err0;
514  }
515 
516  r = omap_dss_start_device(dssdev);
517  if (r) {
518  DSSERR("failed to start device\n");
519  goto err0;
520  }
521 
522  if (dssdev->platform_enable)
523  dssdev->platform_enable(dssdev);
524 
525 
526  r = venc_power_on(dssdev);
527  if (r)
528  goto err1;
529 
530  venc.wss_data = 0;
531 
532  mutex_unlock(&venc.venc_lock);
533 
534  return 0;
535 err1:
536  if (dssdev->platform_disable)
537  dssdev->platform_disable(dssdev);
538  omap_dss_stop_device(dssdev);
539 err0:
540  mutex_unlock(&venc.venc_lock);
541  return r;
542 }
543 
545 {
546  DSSDBG("venc_display_disable\n");
547 
548  mutex_lock(&venc.venc_lock);
549 
550  venc_power_off(dssdev);
551 
552  omap_dss_stop_device(dssdev);
553 
554  if (dssdev->platform_disable)
555  dssdev->platform_disable(dssdev);
556 
557  mutex_unlock(&venc.venc_lock);
558 }
559 
561  struct omap_video_timings *timings)
562 {
563  DSSDBG("venc_set_timings\n");
564 
565  mutex_lock(&venc.venc_lock);
566 
567  /* Reset WSS data when the TV standard changes. */
568  if (memcmp(&venc.timings, timings, sizeof(*timings)))
569  venc.wss_data = 0;
570 
571  venc.timings = *timings;
572 
573  mutex_unlock(&venc.venc_lock);
574 }
575 
577  struct omap_video_timings *timings)
578 {
579  DSSDBG("venc_check_timings\n");
580 
581  if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
582  return 0;
583 
584  if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
585  return 0;
586 
587  return -EINVAL;
588 }
589 
591 {
592  /* Invert due to VENC_L21_WC_CTL:INV=1 */
593  return (venc.wss_data >> 8) ^ 0xfffff;
594 }
595 
596 int omapdss_venc_set_wss(struct omap_dss_device *dssdev, u32 wss)
597 {
598  const struct venc_config *config;
599  int r;
600 
601  DSSDBG("venc_set_wss\n");
602 
603  mutex_lock(&venc.venc_lock);
604 
605  config = venc_timings_to_config(&venc.timings);
606 
607  /* Invert due to VENC_L21_WC_CTL:INV=1 */
608  venc.wss_data = (wss ^ 0xfffff) << 8;
609 
610  r = venc_runtime_get();
611  if (r)
612  goto err;
613 
614  venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
615  venc.wss_data);
616 
617  venc_runtime_put();
618 
619 err:
620  mutex_unlock(&venc.venc_lock);
621 
622  return r;
623 }
624 
627 {
628  mutex_lock(&venc.venc_lock);
629 
630  venc.type = type;
631 
632  mutex_unlock(&venc.venc_lock);
633 }
634 
636  bool invert_polarity)
637 {
638  mutex_lock(&venc.venc_lock);
639 
640  venc.invert_polarity = invert_polarity;
641 
642  mutex_unlock(&venc.venc_lock);
643 }
644 
645 static int __init venc_init_display(struct omap_dss_device *dssdev)
646 {
647  DSSDBG("init_display\n");
648 
649  if (venc.vdda_dac_reg == NULL) {
650  struct regulator *vdda_dac;
651 
652  vdda_dac = regulator_get(&venc.pdev->dev, "vdda_dac");
653 
654  if (IS_ERR(vdda_dac)) {
655  DSSERR("can't get VDDA_DAC regulator\n");
656  return PTR_ERR(vdda_dac);
657  }
658 
659  venc.vdda_dac_reg = vdda_dac;
660  }
661 
662  return 0;
663 }
664 
665 static void venc_dump_regs(struct seq_file *s)
666 {
667 #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r))
668 
669  if (venc_runtime_get())
670  return;
671 
713 
714  venc_runtime_put();
715 
716 #undef DUMPREG
717 }
718 
719 static int venc_get_clocks(struct platform_device *pdev)
720 {
721  struct clk *clk;
722 
724  clk = clk_get(&pdev->dev, "tv_dac_clk");
725  if (IS_ERR(clk)) {
726  DSSERR("can't get tv_dac_clk\n");
727  return PTR_ERR(clk);
728  }
729  } else {
730  clk = NULL;
731  }
732 
733  venc.tv_dac_clk = clk;
734 
735  return 0;
736 }
737 
738 static void venc_put_clocks(void)
739 {
740  if (venc.tv_dac_clk)
741  clk_put(venc.tv_dac_clk);
742 }
743 
744 static struct omap_dss_device * __init venc_find_dssdev(struct platform_device *pdev)
745 {
746  struct omap_dss_board_info *pdata = pdev->dev.platform_data;
747  const char *def_disp_name = dss_get_default_display_name();
748  struct omap_dss_device *def_dssdev;
749  int i;
750 
751  def_dssdev = NULL;
752 
753  for (i = 0; i < pdata->num_devices; ++i) {
754  struct omap_dss_device *dssdev = pdata->devices[i];
755 
756  if (dssdev->type != OMAP_DISPLAY_TYPE_VENC)
757  continue;
758 
759  if (def_dssdev == NULL)
760  def_dssdev = dssdev;
761 
762  if (def_disp_name != NULL &&
763  strcmp(dssdev->name, def_disp_name) == 0) {
764  def_dssdev = dssdev;
765  break;
766  }
767  }
768 
769  return def_dssdev;
770 }
771 
772 static void __init venc_probe_pdata(struct platform_device *vencdev)
773 {
774  struct omap_dss_device *plat_dssdev;
775  struct omap_dss_device *dssdev;
776  int r;
777 
778  plat_dssdev = venc_find_dssdev(vencdev);
779 
780  if (!plat_dssdev)
781  return;
782 
783  dssdev = dss_alloc_and_init_device(&vencdev->dev);
784  if (!dssdev)
785  return;
786 
787  dss_copy_device_pdata(dssdev, plat_dssdev);
788 
790 
791  r = venc_init_display(dssdev);
792  if (r) {
793  DSSERR("device %s init failed: %d\n", dssdev->name, r);
794  dss_put_device(dssdev);
795  return;
796  }
797 
798  r = dss_add_device(dssdev);
799  if (r) {
800  DSSERR("device %s register failed: %d\n", dssdev->name, r);
801  dss_put_device(dssdev);
802  return;
803  }
804 }
805 
806 static void __init venc_init_output(struct platform_device *pdev)
807 {
808  struct omap_dss_output *out = &venc.output;
809 
810  out->pdev = pdev;
811  out->id = OMAP_DSS_OUTPUT_VENC;
813 
814  dss_register_output(out);
815 }
816 
817 static void __exit venc_uninit_output(struct platform_device *pdev)
818 {
819  struct omap_dss_output *out = &venc.output;
820 
822 }
823 
824 /* VENC HW IP initialisation */
825 static int __init omap_venchw_probe(struct platform_device *pdev)
826 {
827  u8 rev_id;
828  struct resource *venc_mem;
829  int r;
830 
831  venc.pdev = pdev;
832 
833  mutex_init(&venc.venc_lock);
834 
835  venc.wss_data = 0;
836 
837  venc_mem = platform_get_resource(venc.pdev, IORESOURCE_MEM, 0);
838  if (!venc_mem) {
839  DSSERR("can't get IORESOURCE_MEM VENC\n");
840  return -EINVAL;
841  }
842 
843  venc.base = devm_ioremap(&pdev->dev, venc_mem->start,
844  resource_size(venc_mem));
845  if (!venc.base) {
846  DSSERR("can't ioremap VENC\n");
847  return -ENOMEM;
848  }
849 
850  r = venc_get_clocks(pdev);
851  if (r)
852  return r;
853 
854  pm_runtime_enable(&pdev->dev);
855 
856  r = venc_runtime_get();
857  if (r)
858  goto err_runtime_get;
859 
860  rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
861  dev_dbg(&pdev->dev, "OMAP VENC rev %d\n", rev_id);
862 
863  venc_runtime_put();
864 
865  r = venc_panel_init();
866  if (r)
867  goto err_panel_init;
868 
869  dss_debugfs_create_file("venc", venc_dump_regs);
870 
871  venc_init_output(pdev);
872 
873  venc_probe_pdata(pdev);
874 
875  return 0;
876 
877 err_panel_init:
878 err_runtime_get:
879  pm_runtime_disable(&pdev->dev);
880  venc_put_clocks();
881  return r;
882 }
883 
884 static int __exit omap_venchw_remove(struct platform_device *pdev)
885 {
887 
888  if (venc.vdda_dac_reg != NULL) {
889  regulator_put(venc.vdda_dac_reg);
890  venc.vdda_dac_reg = NULL;
891  }
892 
893  venc_panel_exit();
894 
895  venc_uninit_output(pdev);
896 
897  pm_runtime_disable(&pdev->dev);
898  venc_put_clocks();
899 
900  return 0;
901 }
902 
903 static int venc_runtime_suspend(struct device *dev)
904 {
905  if (venc.tv_dac_clk)
906  clk_disable_unprepare(venc.tv_dac_clk);
907 
909 
910  return 0;
911 }
912 
913 static int venc_runtime_resume(struct device *dev)
914 {
915  int r;
916 
917  r = dispc_runtime_get();
918  if (r < 0)
919  return r;
920 
921  if (venc.tv_dac_clk)
922  clk_prepare_enable(venc.tv_dac_clk);
923 
924  return 0;
925 }
926 
927 static const struct dev_pm_ops venc_pm_ops = {
928  .runtime_suspend = venc_runtime_suspend,
929  .runtime_resume = venc_runtime_resume,
930 };
931 
932 static struct platform_driver omap_venchw_driver = {
933  .remove = __exit_p(omap_venchw_remove),
934  .driver = {
935  .name = "omapdss_venc",
936  .owner = THIS_MODULE,
937  .pm = &venc_pm_ops,
938  },
939 };
940 
942 {
943  return platform_driver_probe(&omap_venchw_driver, omap_venchw_probe);
944 }
945 
947 {
948  platform_driver_unregister(&omap_venchw_driver);
949 }