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Merge tag 'for-linus-v3.10-rc4-crc-xattr-fixes' of git://oss.sgi.com/xfs/xfs
[deliverable/linux.git] / drivers / gpu / drm / shmobile / shmob_drm_crtc.c
CommitLineData
51c13278
LP		 1/*
2 * shmob_drm_crtc.c -- SH Mobile DRM CRTCs
3 *
4 * Copyright (C) 2012 Renesas Corporation
5 *
6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <linux/backlight.h>
15#include <linux/clk.h>
16
17#include <drm/drmP.h>
18#include <drm/drm_crtc.h>
19#include <drm/drm_crtc_helper.h>
20#include <drm/drm_fb_cma_helper.h>
21#include <drm/drm_gem_cma_helper.h>
22
23#include <video/sh_mobile_meram.h>
24
25#include "shmob_drm_backlight.h"
26#include "shmob_drm_crtc.h"
27#include "shmob_drm_drv.h"
28#include "shmob_drm_kms.h"
29#include "shmob_drm_plane.h"
30#include "shmob_drm_regs.h"
31
32/*
33 * TODO: panel support
34 */
35
36/* -----------------------------------------------------------------------------
37 * Clock management
38 */
39
40static void shmob_drm_clk_on(struct shmob_drm_device *sdev)
41{
42 if (sdev->clock)
43 clk_enable(sdev->clock);
44#if 0
45 if (sdev->meram_dev && sdev->meram_dev->pdev)
46 pm_runtime_get_sync(&sdev->meram_dev->pdev->dev);
47#endif
48}
49
50static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
51{
52#if 0
53 if (sdev->meram_dev && sdev->meram_dev->pdev)
54 pm_runtime_put_sync(&sdev->meram_dev->pdev->dev);
55#endif
56 if (sdev->clock)
57 clk_disable(sdev->clock);
58}
59
60/* -----------------------------------------------------------------------------
61 * CRTC
62 */
63
64static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
65{
66 struct drm_crtc *crtc = &scrtc->crtc;
67 struct shmob_drm_device *sdev = crtc->dev->dev_private;
68 const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
69 const struct drm_display_mode *mode = &crtc->mode;
70 u32 value;
71
72 value = sdev->ldmt1r
73 | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : LDMT1R_VPOL)
74 | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : LDMT1R_HPOL)
75 | ((idata->flags & SHMOB_DRM_IFACE_FL_DWPOL) ? LDMT1R_DWPOL : 0)
76 | ((idata->flags & SHMOB_DRM_IFACE_FL_DIPOL) ? LDMT1R_DIPOL : 0)
77 | ((idata->flags & SHMOB_DRM_IFACE_FL_DAPOL) ? LDMT1R_DAPOL : 0)
78 | ((idata->flags & SHMOB_DRM_IFACE_FL_HSCNT) ? LDMT1R_HSCNT : 0)
79 | ((idata->flags & SHMOB_DRM_IFACE_FL_DWCNT) ? LDMT1R_DWCNT : 0);
80 lcdc_write(sdev, LDMT1R, value);
81
82 if (idata->interface >= SHMOB_DRM_IFACE_SYS8A &&
83 idata->interface <= SHMOB_DRM_IFACE_SYS24) {
84 /* Setup SYS bus. */
85 value = (idata->sys.cs_setup << LDMT2R_CSUP_SHIFT)
86 | (idata->sys.vsync_active_high ? LDMT2R_RSV : 0)
87 | (idata->sys.vsync_dir_input ? LDMT2R_VSEL : 0)
88 | (idata->sys.write_setup << LDMT2R_WCSC_SHIFT)
89 | (idata->sys.write_cycle << LDMT2R_WCEC_SHIFT)
90 | (idata->sys.write_strobe << LDMT2R_WCLW_SHIFT);
91 lcdc_write(sdev, LDMT2R, value);
92
93 value = (idata->sys.read_latch << LDMT3R_RDLC_SHIFT)
94 | (idata->sys.read_setup << LDMT3R_RCSC_SHIFT)
95 | (idata->sys.read_cycle << LDMT3R_RCEC_SHIFT)
96 | (idata->sys.read_strobe << LDMT3R_RCLW_SHIFT);
97 lcdc_write(sdev, LDMT3R, value);
98 }
99
100 value = ((mode->hdisplay / 8) << 16) /* HDCN */
101 | (mode->htotal / 8); /* HTCN */
102 lcdc_write(sdev, LDHCNR, value);
103
104 value = (((mode->hsync_end - mode->hsync_start) / 8) << 16) /* HSYNW */
105 | (mode->hsync_start / 8); /* HSYNP */
106 lcdc_write(sdev, LDHSYNR, value);
107
108 value = ((mode->hdisplay & 7) << 24) | ((mode->htotal & 7) << 16)
109 | (((mode->hsync_end - mode->hsync_start) & 7) << 8)
110 | (mode->hsync_start & 7);
111 lcdc_write(sdev, LDHAJR, value);
112
113 value = ((mode->vdisplay) << 16) /* VDLN */
114 | mode->vtotal; /* VTLN */
115 lcdc_write(sdev, LDVLNR, value);
116
117 value = ((mode->vsync_end - mode->vsync_start) << 16) /* VSYNW */
118 | mode->vsync_start; /* VSYNP */
119 lcdc_write(sdev, LDVSYNR, value);
120}
121
122static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
123{
124 struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private;
125 u32 value;
126
127 value = lcdc_read(sdev, LDCNT2R);
128 if (start)
129 lcdc_write(sdev, LDCNT2R, value | LDCNT2R_DO);
130 else
131 lcdc_write(sdev, LDCNT2R, value & ~LDCNT2R_DO);
132
133 /* Wait until power is applied/stopped. */
134 while (1) {
135 value = lcdc_read(sdev, LDPMR) & LDPMR_LPS;
136 if ((start && value) || (!start && !value))
137 break;
138
139 cpu_relax();
140 }
141
142 if (!start) {
143 /* Stop the dot clock. */
144 lcdc_write(sdev, LDDCKSTPR, LDDCKSTPR_DCKSTP);
145 }
146}
147
148/*
149 * shmob_drm_crtc_start - Configure and start the LCDC
150 * @scrtc: the SH Mobile CRTC
151 *
152 * Configure and start the LCDC device. External devices (clocks, MERAM, panels,
153 * ...) are not touched by this function.
154 */
155static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
156{
157 struct drm_crtc *crtc = &scrtc->crtc;
158 struct shmob_drm_device *sdev = crtc->dev->dev_private;
159 const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
160 const struct shmob_drm_format_info *format;
161 struct drm_device *dev = sdev->ddev;
162 struct drm_plane *plane;
163 u32 value;
164
165 if (scrtc->started)
166 return;
167
168 format = shmob_drm_format_info(crtc->fb->pixel_format);
169 if (WARN_ON(format == NULL))
170 return;
171
172 /* Enable clocks before accessing the hardware. */
173 shmob_drm_clk_on(sdev);
174
175 /* Reset and enable the LCDC. */
176 lcdc_write(sdev, LDCNT2R, lcdc_read(sdev, LDCNT2R) | LDCNT2R_BR);
177 lcdc_wait_bit(sdev, LDCNT2R, LDCNT2R_BR, 0);
178 lcdc_write(sdev, LDCNT2R, LDCNT2R_ME);
179
180 /* Stop the LCDC first and disable all interrupts. */
181 shmob_drm_crtc_start_stop(scrtc, false);
182 lcdc_write(sdev, LDINTR, 0);
183
184 /* Configure power supply, dot clocks and start them. */
185 lcdc_write(sdev, LDPMR, 0);
186
187 value = sdev->lddckr;
188 if (idata->clk_div) {
189 /* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider
190 * denominator.
191 */
192 lcdc_write(sdev, LDDCKPAT1R, 0);
193 lcdc_write(sdev, LDDCKPAT2R, (1 << (idata->clk_div / 2)) - 1);
194
195 if (idata->clk_div == 1)
196 value |= LDDCKR_MOSEL;
197 else
198 value |= idata->clk_div;
199 }
200
201 lcdc_write(sdev, LDDCKR, value);
202 lcdc_write(sdev, LDDCKSTPR, 0);
203 lcdc_wait_bit(sdev, LDDCKSTPR, ~0, 0);
204
205 /* TODO: Setup SYS panel */
206
207 /* Setup geometry, format, frame buffer memory and operation mode. */
208 shmob_drm_crtc_setup_geometry(scrtc);
209
210 /* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
211 lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1);
212 lcdc_write(sdev, LDMLSR, scrtc->line_size);
213 lcdc_write(sdev, LDSA1R, scrtc->dma[0]);
214 if (format->yuv)
215 lcdc_write(sdev, LDSA2R, scrtc->dma[1]);
216 lcdc_write(sdev, LDSM1R, 0);
217
218 /* Word and long word swap. */
219 switch (format->fourcc) {
220 case DRM_FORMAT_RGB565:
221 case DRM_FORMAT_NV21:
222 case DRM_FORMAT_NV61:
223 case DRM_FORMAT_NV42:
224 value = LDDDSR_LS | LDDDSR_WS;
225 break;
226 case DRM_FORMAT_RGB888:
227 case DRM_FORMAT_NV12:
228 case DRM_FORMAT_NV16:
229 case DRM_FORMAT_NV24:
230 value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS;
231 break;
232 case DRM_FORMAT_ARGB8888:
233 default:
234 value = LDDDSR_LS;
235 break;
236 }
237 lcdc_write(sdev, LDDDSR, value);
238
239 /* Setup planes. */
240 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
241 if (plane->crtc == crtc)
242 shmob_drm_plane_setup(plane);
243 }
244
245 /* Enable the display output. */
246 lcdc_write(sdev, LDCNT1R, LDCNT1R_DE);
247
248 shmob_drm_crtc_start_stop(scrtc, true);
249
250 scrtc->started = true;
251}
252
253static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
254{
255 struct drm_crtc *crtc = &scrtc->crtc;
256 struct shmob_drm_device *sdev = crtc->dev->dev_private;
257
258 if (!scrtc->started)
259 return;
260
261 /* Disable the MERAM cache. */
262 if (scrtc->cache) {
263 sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
264 scrtc->cache = NULL;
265 }
266
267 /* Stop the LCDC. */
268 shmob_drm_crtc_start_stop(scrtc, false);
269
270 /* Disable the display output. */
271 lcdc_write(sdev, LDCNT1R, 0);
272
273 /* Stop clocks. */
274 shmob_drm_clk_off(sdev);
275
276 scrtc->started = false;
277}
278
279void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc)
280{
281 shmob_drm_crtc_stop(scrtc);
282}
283
284void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc)
285{
286 if (scrtc->dpms != DRM_MODE_DPMS_ON)
287 return;
288
289 shmob_drm_crtc_start(scrtc);
290}
291
292static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
293 int x, int y)
294{
295 struct drm_crtc *crtc = &scrtc->crtc;
296 struct drm_framebuffer *fb = crtc->fb;
297 struct shmob_drm_device *sdev = crtc->dev->dev_private;
298 struct drm_gem_cma_object *gem;
299 unsigned int bpp;
300
301 bpp = scrtc->format->yuv ? 8 : scrtc->format->bpp;
302 gem = drm_fb_cma_get_gem_obj(fb, 0);
303 scrtc->dma[0] = gem->paddr + fb->offsets[0]
304 + y * fb->pitches[0] + x * bpp / 8;
305
306 if (scrtc->format->yuv) {
307 bpp = scrtc->format->bpp - 8;
308 gem = drm_fb_cma_get_gem_obj(fb, 1);
309 scrtc->dma[1] = gem->paddr + fb->offsets[1]
310 + y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
311 + x * (bpp == 16 ? 2 : 1);
312 }
313
314 if (scrtc->cache)
315 sh_mobile_meram_cache_update(sdev->meram, scrtc->cache,
316 scrtc->dma[0], scrtc->dma[1],
317 &scrtc->dma[0], &scrtc->dma[1]);
318}
319
320static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
321{
322 struct drm_crtc *crtc = &scrtc->crtc;
323 struct shmob_drm_device *sdev = crtc->dev->dev_private;
324
325 shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y);
326
327 lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]);
328 if (scrtc->format->yuv)
329 lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]);
330
331 lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
332}
333
334#define to_shmob_crtc(c) container_of(c, struct shmob_drm_crtc, crtc)
335
336static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
337{
338 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
339
340 if (scrtc->dpms == mode)
341 return;
342
343 if (mode == DRM_MODE_DPMS_ON)
344 shmob_drm_crtc_start(scrtc);
345 else
346 shmob_drm_crtc_stop(scrtc);
347
348 scrtc->dpms = mode;
349}
350
351static bool shmob_drm_crtc_mode_fixup(struct drm_crtc *crtc,
352 const struct drm_display_mode *mode,
353 struct drm_display_mode *adjusted_mode)
354{
355 return true;
356}
357
358static void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc)
359{
360 shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
361}
362
363static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
364 struct drm_display_mode *mode,
365 struct drm_display_mode *adjusted_mode,
366 int x, int y,
367 struct drm_framebuffer *old_fb)
368{
369 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
370 struct shmob_drm_device *sdev = crtc->dev->dev_private;
371 const struct sh_mobile_meram_cfg *mdata = sdev->pdata->meram;
372 const struct shmob_drm_format_info *format;
373 void *cache;
374
375 format = shmob_drm_format_info(crtc->fb->pixel_format);
376 if (format == NULL) {
377 dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n",
378 crtc->fb->pixel_format);
379 return -EINVAL;
380 }
381
382 scrtc->format = format;
383 scrtc->line_size = crtc->fb->pitches[0];
384
385 if (sdev->meram) {
386 /* Enable MERAM cache if configured. We need to de-init
387 * configured ICBs before we can re-initialize them.
388 */
389 if (scrtc->cache) {
390 sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
391 scrtc->cache = NULL;
392 }
393
394 cache = sh_mobile_meram_cache_alloc(sdev->meram, mdata,
395 crtc->fb->pitches[0],
396 adjusted_mode->vdisplay,
397 format->meram,
398 &scrtc->line_size);
399 if (!IS_ERR(cache))
400 scrtc->cache = cache;
401 }
402
403 shmob_drm_crtc_compute_base(scrtc, x, y);
404
405 return 0;
406}
407
408static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
409{
410 shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
411}
412
413static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
414 struct drm_framebuffer *old_fb)
415{
416 shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
417
418 return 0;
419}
420
421static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
422 .dpms = shmob_drm_crtc_dpms,
423 .mode_fixup = shmob_drm_crtc_mode_fixup,
424 .prepare = shmob_drm_crtc_mode_prepare,
425 .commit = shmob_drm_crtc_mode_commit,
426 .mode_set = shmob_drm_crtc_mode_set,
427 .mode_set_base = shmob_drm_crtc_mode_set_base,
428};
429
430void shmob_drm_crtc_cancel_page_flip(struct shmob_drm_crtc *scrtc,
431 struct drm_file *file)
432{
433 struct drm_pending_vblank_event *event;
434 struct drm_device *dev = scrtc->crtc.dev;
435 unsigned long flags;
436
437 /* Destroy the pending vertical blanking event associated with the
438 * pending page flip, if any, and disable vertical blanking interrupts.
439 */
440 spin_lock_irqsave(&dev->event_lock, flags);
441 event = scrtc->event;
442 if (event && event->base.file_priv == file) {
443 scrtc->event = NULL;
444 event->base.destroy(&event->base);
445 drm_vblank_put(dev, 0);
446 }
447 spin_unlock_irqrestore(&dev->event_lock, flags);
448}
449
450void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
451{
452 struct drm_pending_vblank_event *event;
453 struct drm_device *dev = scrtc->crtc.dev;
51c13278
LP		 454 unsigned long flags;
455
456 spin_lock_irqsave(&dev->event_lock, flags);
457 event = scrtc->event;
458 scrtc->event = NULL;
f7e96d7e
RC		 459 if (event) {
460 drm_send_vblank_event(dev, 0, event);
461 drm_vblank_put(dev, 0);
462 }
51c13278 463 spin_unlock_irqrestore(&dev->event_lock, flags);
51c13278
LP		 464}
465
466static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
467 struct drm_framebuffer *fb,
468 struct drm_pending_vblank_event *event)
469{
470 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
471 struct drm_device *dev = scrtc->crtc.dev;
472 unsigned long flags;
473
474 spin_lock_irqsave(&dev->event_lock, flags);
475 if (scrtc->event != NULL) {
476 spin_unlock_irqrestore(&dev->event_lock, flags);
477 return -EBUSY;
478 }
479 spin_unlock_irqrestore(&dev->event_lock, flags);
480
481 crtc->fb = fb;
482 shmob_drm_crtc_update_base(scrtc);
483
484 if (event) {
485 event->pipe = 0;
17f0efc4 486 drm_vblank_get(dev, 0);
51c13278
LP		 487 spin_lock_irqsave(&dev->event_lock, flags);
488 scrtc->event = event;
489 spin_unlock_irqrestore(&dev->event_lock, flags);
51c13278
LP		 490 }
491
492 return 0;
493}
494
495static const struct drm_crtc_funcs crtc_funcs = {
496 .destroy = drm_crtc_cleanup,
497 .set_config = drm_crtc_helper_set_config,
498 .page_flip = shmob_drm_crtc_page_flip,
499};
500
501int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
502{
503 struct drm_crtc *crtc = &sdev->crtc.crtc;
504 int ret;
505
506 sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
507
508 ret = drm_crtc_init(sdev->ddev, crtc, &crtc_funcs);
509 if (ret < 0)
510 return ret;
511
512 drm_crtc_helper_add(crtc, &crtc_helper_funcs);
513
514 return 0;
515}
516
517/* -----------------------------------------------------------------------------
518 * Encoder
519 */
520
521#define to_shmob_encoder(e) \
522 container_of(e, struct shmob_drm_encoder, encoder)
523
524static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
525{
526 struct shmob_drm_encoder *senc = to_shmob_encoder(encoder);
527 struct shmob_drm_device *sdev = encoder->dev->dev_private;
528 struct shmob_drm_connector *scon = &sdev->connector;
529
530 if (senc->dpms == mode)
531 return;
532
533 shmob_drm_backlight_dpms(scon, mode);
534
535 senc->dpms = mode;
536}
537
538static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
539 const struct drm_display_mode *mode,
540 struct drm_display_mode *adjusted_mode)
541{
542 struct drm_device *dev = encoder->dev;
543 struct shmob_drm_device *sdev = dev->dev_private;
544 struct drm_connector *connector = &sdev->connector.connector;
545 const struct drm_display_mode *panel_mode;
546
547 if (list_empty(&connector->modes)) {
548 dev_dbg(dev->dev, "mode_fixup: empty modes list\n");
549 return false;
550 }
551
552 /* The flat panel mode is fixed, just copy it to the adjusted mode. */
553 panel_mode = list_first_entry(&connector->modes,
554 struct drm_display_mode, head);
555 drm_mode_copy(adjusted_mode, panel_mode);
556
557 return true;
558}
559
560static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder)
561{
562 /* No-op, everything is handled in the CRTC code. */
563}
564
565static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder,
566 struct drm_display_mode *mode,
567 struct drm_display_mode *adjusted_mode)
568{
569 /* No-op, everything is handled in the CRTC code. */
570}
571
572static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder)
573{
574 /* No-op, everything is handled in the CRTC code. */
575}
576
577static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
578 .dpms = shmob_drm_encoder_dpms,
579 .mode_fixup = shmob_drm_encoder_mode_fixup,
580 .prepare = shmob_drm_encoder_mode_prepare,
581 .commit = shmob_drm_encoder_mode_commit,
582 .mode_set = shmob_drm_encoder_mode_set,
583};
584
585static void shmob_drm_encoder_destroy(struct drm_encoder *encoder)
586{
587 drm_encoder_cleanup(encoder);
588}
589
590static const struct drm_encoder_funcs encoder_funcs = {
591 .destroy = shmob_drm_encoder_destroy,
592};
593
594int shmob_drm_encoder_create(struct shmob_drm_device *sdev)
595{
596 struct drm_encoder *encoder = &sdev->encoder.encoder;
597 int ret;
598
599 sdev->encoder.dpms = DRM_MODE_DPMS_OFF;
600
601 encoder->possible_crtcs = 1;
602
603 ret = drm_encoder_init(sdev->ddev, encoder, &encoder_funcs,
604 DRM_MODE_ENCODER_LVDS);
605 if (ret < 0)
606 return ret;
607
608 drm_encoder_helper_add(encoder, &encoder_helper_funcs);
609
610 return 0;
611}
612
613void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, bool enable)
614{
615 unsigned long flags;
616 u32 ldintr;
617
618 /* Be careful not to acknowledge any pending interrupt. */
619 spin_lock_irqsave(&sdev->irq_lock, flags);
620 ldintr = lcdc_read(sdev, LDINTR) | LDINTR_STATUS_MASK;
621 if (enable)
622 ldintr |= LDINTR_VEE;
623 else
624 ldintr &= ~LDINTR_VEE;
625 lcdc_write(sdev, LDINTR, ldintr);
626 spin_unlock_irqrestore(&sdev->irq_lock, flags);
627}
628
629/* -----------------------------------------------------------------------------
630 * Connector
631 */
632
633#define to_shmob_connector(c) \
634 container_of(c, struct shmob_drm_connector, connector)
635
636static int shmob_drm_connector_get_modes(struct drm_connector *connector)
637{
638 struct shmob_drm_device *sdev = connector->dev->dev_private;
639 struct drm_display_mode *mode;
640
641 mode = drm_mode_create(connector->dev);
642 if (mode == NULL)
643 return 0;
644
645 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
646 mode->clock = sdev->pdata->panel.mode.clock;
647 mode->hdisplay = sdev->pdata->panel.mode.hdisplay;
648 mode->hsync_start = sdev->pdata->panel.mode.hsync_start;
649 mode->hsync_end = sdev->pdata->panel.mode.hsync_end;
650 mode->htotal = sdev->pdata->panel.mode.htotal;
651 mode->vdisplay = sdev->pdata->panel.mode.vdisplay;
652 mode->vsync_start = sdev->pdata->panel.mode.vsync_start;
653 mode->vsync_end = sdev->pdata->panel.mode.vsync_end;
654 mode->vtotal = sdev->pdata->panel.mode.vtotal;
655 mode->flags = sdev->pdata->panel.mode.flags;
656
657 drm_mode_set_name(mode);
658 drm_mode_probed_add(connector, mode);
659
660 connector->display_info.width_mm = sdev->pdata->panel.width_mm;
661 connector->display_info.height_mm = sdev->pdata->panel.height_mm;
662
663 return 1;
664}
665
666static int shmob_drm_connector_mode_valid(struct drm_connector *connector,
667 struct drm_display_mode *mode)
668{
669 return MODE_OK;
670}
671
672static struct drm_encoder *
673shmob_drm_connector_best_encoder(struct drm_connector *connector)
674{
675 struct shmob_drm_connector *scon = to_shmob_connector(connector);
676
677 return scon->encoder;
678}
679
680static const struct drm_connector_helper_funcs connector_helper_funcs = {
681 .get_modes = shmob_drm_connector_get_modes,
682 .mode_valid = shmob_drm_connector_mode_valid,
683 .best_encoder = shmob_drm_connector_best_encoder,
684};
685
686static void shmob_drm_connector_destroy(struct drm_connector *connector)
687{
688 struct shmob_drm_connector *scon = to_shmob_connector(connector);
689
690 shmob_drm_backlight_exit(scon);
691 drm_sysfs_connector_remove(connector);
692 drm_connector_cleanup(connector);
693}
694
695static enum drm_connector_status
696shmob_drm_connector_detect(struct drm_connector *connector, bool force)
697{
698 return connector_status_connected;
699}
700
701static const struct drm_connector_funcs connector_funcs = {
702 .dpms = drm_helper_connector_dpms,
703 .detect = shmob_drm_connector_detect,
704 .fill_modes = drm_helper_probe_single_connector_modes,
705 .destroy = shmob_drm_connector_destroy,
706};
707
708int shmob_drm_connector_create(struct shmob_drm_device *sdev,
709 struct drm_encoder *encoder)
710{
711 struct drm_connector *connector = &sdev->connector.connector;
712 int ret;
713
714 sdev->connector.encoder = encoder;
715
716 connector->display_info.width_mm = sdev->pdata->panel.width_mm;
717 connector->display_info.height_mm = sdev->pdata->panel.height_mm;
718
719 ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
720 DRM_MODE_CONNECTOR_LVDS);
721 if (ret < 0)
722 return ret;
723
724 drm_connector_helper_add(connector, &connector_helper_funcs);
725 ret = drm_sysfs_connector_add(connector);
726 if (ret < 0)
727 goto err_cleanup;
728
729 ret = shmob_drm_backlight_init(&sdev->connector);
730 if (ret < 0)
731 goto err_sysfs;
732
733 ret = drm_mode_connector_attach_encoder(connector, encoder);
734 if (ret < 0)
735 goto err_backlight;
736
737 connector->encoder = encoder;
738
739 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
c708a56d 740 drm_object_property_set_value(&connector->base,
51c13278
LP		 741 sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
742
743 return 0;
744
745err_backlight:
746 shmob_drm_backlight_exit(&sdev->connector);
747err_sysfs:
748 drm_sysfs_connector_remove(connector);
749err_cleanup:
750 drm_connector_cleanup(connector);
751 return ret;
752}
Linux kernel - Deliverables
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