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drm: Pass 'name' to drm_encoder_init()
[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 *
9588b826 4 * Copyright (C) 2012 Renesas Electronics Corporation
51c13278
LP		 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>
3cb9ae4f 22#include <drm/drm_plane_helper.h>
51c13278
LP		 23
24#include <video/sh_mobile_meram.h>
25
26#include "shmob_drm_backlight.h"
27#include "shmob_drm_crtc.h"
28#include "shmob_drm_drv.h"
29#include "shmob_drm_kms.h"
30#include "shmob_drm_plane.h"
31#include "shmob_drm_regs.h"
32
33/*
34 * TODO: panel support
35 */
36
37/* -----------------------------------------------------------------------------
38 * Clock management
39 */
40
c0c72a85 41static int shmob_drm_clk_on(struct shmob_drm_device *sdev)
51c13278 42{
c0c72a85
LP		 43 int ret;
44
45 if (sdev->clock) {
46 ret = clk_prepare_enable(sdev->clock);
47 if (ret < 0)
48 return ret;
49 }
51c13278
LP		 50#if 0
51 if (sdev->meram_dev && sdev->meram_dev->pdev)
52 pm_runtime_get_sync(&sdev->meram_dev->pdev->dev);
53#endif
c0c72a85
LP		 54
55 return 0;
51c13278
LP		 56}
57
58static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
59{
60#if 0
61 if (sdev->meram_dev && sdev->meram_dev->pdev)
62 pm_runtime_put_sync(&sdev->meram_dev->pdev->dev);
63#endif
64 if (sdev->clock)
8d01e1ef 65 clk_disable_unprepare(sdev->clock);
51c13278
LP		 66}
67
68/* -----------------------------------------------------------------------------
69 * CRTC
70 */
71
72static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
73{
74 struct drm_crtc *crtc = &scrtc->crtc;
75 struct shmob_drm_device *sdev = crtc->dev->dev_private;
76 const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
77 const struct drm_display_mode *mode = &crtc->mode;
78 u32 value;
79
80 value = sdev->ldmt1r
81 | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : LDMT1R_VPOL)
82 | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : LDMT1R_HPOL)
83 | ((idata->flags & SHMOB_DRM_IFACE_FL_DWPOL) ? LDMT1R_DWPOL : 0)
84 | ((idata->flags & SHMOB_DRM_IFACE_FL_DIPOL) ? LDMT1R_DIPOL : 0)
85 | ((idata->flags & SHMOB_DRM_IFACE_FL_DAPOL) ? LDMT1R_DAPOL : 0)
86 | ((idata->flags & SHMOB_DRM_IFACE_FL_HSCNT) ? LDMT1R_HSCNT : 0)
87 | ((idata->flags & SHMOB_DRM_IFACE_FL_DWCNT) ? LDMT1R_DWCNT : 0);
88 lcdc_write(sdev, LDMT1R, value);
89
90 if (idata->interface >= SHMOB_DRM_IFACE_SYS8A &&
91 idata->interface <= SHMOB_DRM_IFACE_SYS24) {
92 /* Setup SYS bus. */
93 value = (idata->sys.cs_setup << LDMT2R_CSUP_SHIFT)
94 | (idata->sys.vsync_active_high ? LDMT2R_RSV : 0)
95 | (idata->sys.vsync_dir_input ? LDMT2R_VSEL : 0)
96 | (idata->sys.write_setup << LDMT2R_WCSC_SHIFT)
97 | (idata->sys.write_cycle << LDMT2R_WCEC_SHIFT)
98 | (idata->sys.write_strobe << LDMT2R_WCLW_SHIFT);
99 lcdc_write(sdev, LDMT2R, value);
100
101 value = (idata->sys.read_latch << LDMT3R_RDLC_SHIFT)
102 | (idata->sys.read_setup << LDMT3R_RCSC_SHIFT)
103 | (idata->sys.read_cycle << LDMT3R_RCEC_SHIFT)
104 | (idata->sys.read_strobe << LDMT3R_RCLW_SHIFT);
105 lcdc_write(sdev, LDMT3R, value);
106 }
107
108 value = ((mode->hdisplay / 8) << 16) /* HDCN */
109 | (mode->htotal / 8); /* HTCN */
110 lcdc_write(sdev, LDHCNR, value);
111
112 value = (((mode->hsync_end - mode->hsync_start) / 8) << 16) /* HSYNW */
113 | (mode->hsync_start / 8); /* HSYNP */
114 lcdc_write(sdev, LDHSYNR, value);
115
116 value = ((mode->hdisplay & 7) << 24) | ((mode->htotal & 7) << 16)
117 | (((mode->hsync_end - mode->hsync_start) & 7) << 8)
118 | (mode->hsync_start & 7);
119 lcdc_write(sdev, LDHAJR, value);
120
121 value = ((mode->vdisplay) << 16) /* VDLN */
122 | mode->vtotal; /* VTLN */
123 lcdc_write(sdev, LDVLNR, value);
124
125 value = ((mode->vsync_end - mode->vsync_start) << 16) /* VSYNW */
126 | mode->vsync_start; /* VSYNP */
127 lcdc_write(sdev, LDVSYNR, value);
128}
129
130static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
131{
132 struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private;
133 u32 value;
134
135 value = lcdc_read(sdev, LDCNT2R);
136 if (start)
137 lcdc_write(sdev, LDCNT2R, value | LDCNT2R_DO);
138 else
139 lcdc_write(sdev, LDCNT2R, value & ~LDCNT2R_DO);
140
141 /* Wait until power is applied/stopped. */
142 while (1) {
143 value = lcdc_read(sdev, LDPMR) & LDPMR_LPS;
144 if ((start && value) || (!start && !value))
145 break;
146
147 cpu_relax();
148 }
149
150 if (!start) {
151 /* Stop the dot clock. */
152 lcdc_write(sdev, LDDCKSTPR, LDDCKSTPR_DCKSTP);
153 }
154}
155
156/*
157 * shmob_drm_crtc_start - Configure and start the LCDC
158 * @scrtc: the SH Mobile CRTC
159 *
160 * Configure and start the LCDC device. External devices (clocks, MERAM, panels,
161 * ...) are not touched by this function.
162 */
163static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
164{
165 struct drm_crtc *crtc = &scrtc->crtc;
166 struct shmob_drm_device *sdev = crtc->dev->dev_private;
167 const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
168 const struct shmob_drm_format_info *format;
169 struct drm_device *dev = sdev->ddev;
170 struct drm_plane *plane;
171 u32 value;
c0c72a85 172 int ret;
51c13278
LP		 173
174 if (scrtc->started)
175 return;
176
f4510a27 177 format = shmob_drm_format_info(crtc->primary->fb->pixel_format);
51c13278
LP		 178 if (WARN_ON(format == NULL))
179 return;
180
181 /* Enable clocks before accessing the hardware. */
c0c72a85
LP		 182 ret = shmob_drm_clk_on(sdev);
183 if (ret < 0)
184 return;
51c13278
LP		 185
186 /* Reset and enable the LCDC. */
187 lcdc_write(sdev, LDCNT2R, lcdc_read(sdev, LDCNT2R) | LDCNT2R_BR);
188 lcdc_wait_bit(sdev, LDCNT2R, LDCNT2R_BR, 0);
189 lcdc_write(sdev, LDCNT2R, LDCNT2R_ME);
190
191 /* Stop the LCDC first and disable all interrupts. */
192 shmob_drm_crtc_start_stop(scrtc, false);
193 lcdc_write(sdev, LDINTR, 0);
194
195 /* Configure power supply, dot clocks and start them. */
196 lcdc_write(sdev, LDPMR, 0);
197
198 value = sdev->lddckr;
199 if (idata->clk_div) {
200 /* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider
201 * denominator.
202 */
203 lcdc_write(sdev, LDDCKPAT1R, 0);
204 lcdc_write(sdev, LDDCKPAT2R, (1 << (idata->clk_div / 2)) - 1);
205
206 if (idata->clk_div == 1)
207 value |= LDDCKR_MOSEL;
208 else
209 value |= idata->clk_div;
210 }
211
212 lcdc_write(sdev, LDDCKR, value);
213 lcdc_write(sdev, LDDCKSTPR, 0);
214 lcdc_wait_bit(sdev, LDDCKSTPR, ~0, 0);
215
216 /* TODO: Setup SYS panel */
217
218 /* Setup geometry, format, frame buffer memory and operation mode. */
219 shmob_drm_crtc_setup_geometry(scrtc);
220
221 /* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
222 lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1);
223 lcdc_write(sdev, LDMLSR, scrtc->line_size);
224 lcdc_write(sdev, LDSA1R, scrtc->dma[0]);
225 if (format->yuv)
226 lcdc_write(sdev, LDSA2R, scrtc->dma[1]);
227 lcdc_write(sdev, LDSM1R, 0);
228
229 /* Word and long word swap. */
230 switch (format->fourcc) {
231 case DRM_FORMAT_RGB565:
232 case DRM_FORMAT_NV21:
233 case DRM_FORMAT_NV61:
234 case DRM_FORMAT_NV42:
235 value = LDDDSR_LS | LDDDSR_WS;
236 break;
237 case DRM_FORMAT_RGB888:
238 case DRM_FORMAT_NV12:
239 case DRM_FORMAT_NV16:
240 case DRM_FORMAT_NV24:
241 value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS;
242 break;
243 case DRM_FORMAT_ARGB8888:
244 default:
245 value = LDDDSR_LS;
246 break;
247 }
248 lcdc_write(sdev, LDDDSR, value);
249
250 /* Setup planes. */
4ea50e99 251 drm_for_each_legacy_plane(plane, dev) {
51c13278
LP		 252 if (plane->crtc == crtc)
253 shmob_drm_plane_setup(plane);
254 }
255
256 /* Enable the display output. */
257 lcdc_write(sdev, LDCNT1R, LDCNT1R_DE);
258
259 shmob_drm_crtc_start_stop(scrtc, true);
260
261 scrtc->started = true;
262}
263
264static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
265{
266 struct drm_crtc *crtc = &scrtc->crtc;
267 struct shmob_drm_device *sdev = crtc->dev->dev_private;
268
269 if (!scrtc->started)
270 return;
271
272 /* Disable the MERAM cache. */
273 if (scrtc->cache) {
274 sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
275 scrtc->cache = NULL;
276 }
277
278 /* Stop the LCDC. */
279 shmob_drm_crtc_start_stop(scrtc, false);
280
281 /* Disable the display output. */
282 lcdc_write(sdev, LDCNT1R, 0);
283
284 /* Stop clocks. */
285 shmob_drm_clk_off(sdev);
286
287 scrtc->started = false;
288}
289
290void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc)
291{
292 shmob_drm_crtc_stop(scrtc);
293}
294
295void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc)
296{
297 if (scrtc->dpms != DRM_MODE_DPMS_ON)
298 return;
299
300 shmob_drm_crtc_start(scrtc);
301}
302
303static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
304 int x, int y)
305{
306 struct drm_crtc *crtc = &scrtc->crtc;
f4510a27 307 struct drm_framebuffer *fb = crtc->primary->fb;
51c13278
LP		 308 struct shmob_drm_device *sdev = crtc->dev->dev_private;
309 struct drm_gem_cma_object *gem;
310 unsigned int bpp;
311
312 bpp = scrtc->format->yuv ? 8 : scrtc->format->bpp;
313 gem = drm_fb_cma_get_gem_obj(fb, 0);
314 scrtc->dma[0] = gem->paddr + fb->offsets[0]
315 + y * fb->pitches[0] + x * bpp / 8;
316
317 if (scrtc->format->yuv) {
318 bpp = scrtc->format->bpp - 8;
319 gem = drm_fb_cma_get_gem_obj(fb, 1);
320 scrtc->dma[1] = gem->paddr + fb->offsets[1]
321 + y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
322 + x * (bpp == 16 ? 2 : 1);
323 }
324
325 if (scrtc->cache)
326 sh_mobile_meram_cache_update(sdev->meram, scrtc->cache,
327 scrtc->dma[0], scrtc->dma[1],
328 &scrtc->dma[0], &scrtc->dma[1]);
329}
330
331static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
332{
333 struct drm_crtc *crtc = &scrtc->crtc;
334 struct shmob_drm_device *sdev = crtc->dev->dev_private;
335
336 shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y);
337
338 lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]);
339 if (scrtc->format->yuv)
340 lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]);
341
342 lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
343}
344
345#define to_shmob_crtc(c) container_of(c, struct shmob_drm_crtc, crtc)
346
347static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
348{
349 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
350
351 if (scrtc->dpms == mode)
352 return;
353
354 if (mode == DRM_MODE_DPMS_ON)
355 shmob_drm_crtc_start(scrtc);
356 else
357 shmob_drm_crtc_stop(scrtc);
358
359 scrtc->dpms = mode;
360}
361
362static bool shmob_drm_crtc_mode_fixup(struct drm_crtc *crtc,
363 const struct drm_display_mode *mode,
364 struct drm_display_mode *adjusted_mode)
365{
366 return true;
367}
368
369static void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc)
370{
371 shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
372}
373
374static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
375 struct drm_display_mode *mode,
376 struct drm_display_mode *adjusted_mode,
377 int x, int y,
378 struct drm_framebuffer *old_fb)
379{
380 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
381 struct shmob_drm_device *sdev = crtc->dev->dev_private;
382 const struct sh_mobile_meram_cfg *mdata = sdev->pdata->meram;
383 const struct shmob_drm_format_info *format;
384 void *cache;
385
f4510a27 386 format = shmob_drm_format_info(crtc->primary->fb->pixel_format);
51c13278
LP		 387 if (format == NULL) {
388 dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n",
f4510a27 389 crtc->primary->fb->pixel_format);
51c13278
LP		 390 return -EINVAL;
391 }
392
393 scrtc->format = format;
f4510a27 394 scrtc->line_size = crtc->primary->fb->pitches[0];
51c13278
LP		 395
396 if (sdev->meram) {
397 /* Enable MERAM cache if configured. We need to de-init
398 * configured ICBs before we can re-initialize them.
399 */
400 if (scrtc->cache) {
401 sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
402 scrtc->cache = NULL;
403 }
404
405 cache = sh_mobile_meram_cache_alloc(sdev->meram, mdata,
f4510a27 406 crtc->primary->fb->pitches[0],
51c13278
LP		 407 adjusted_mode->vdisplay,
408 format->meram,
409 &scrtc->line_size);
410 if (!IS_ERR(cache))
411 scrtc->cache = cache;
412 }
413
414 shmob_drm_crtc_compute_base(scrtc, x, y);
415
416 return 0;
417}
418
419static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
420{
421 shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
422}
423
424static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
425 struct drm_framebuffer *old_fb)
426{
427 shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
428
429 return 0;
430}
431
432static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
433 .dpms = shmob_drm_crtc_dpms,
434 .mode_fixup = shmob_drm_crtc_mode_fixup,
435 .prepare = shmob_drm_crtc_mode_prepare,
436 .commit = shmob_drm_crtc_mode_commit,
437 .mode_set = shmob_drm_crtc_mode_set,
438 .mode_set_base = shmob_drm_crtc_mode_set_base,
439};
440
441void shmob_drm_crtc_cancel_page_flip(struct shmob_drm_crtc *scrtc,
442 struct drm_file *file)
443{
444 struct drm_pending_vblank_event *event;
445 struct drm_device *dev = scrtc->crtc.dev;
446 unsigned long flags;
447
448 /* Destroy the pending vertical blanking event associated with the
449 * pending page flip, if any, and disable vertical blanking interrupts.
450 */
451 spin_lock_irqsave(&dev->event_lock, flags);
452 event = scrtc->event;
453 if (event && event->base.file_priv == file) {
454 scrtc->event = NULL;
455 event->base.destroy(&event->base);
456 drm_vblank_put(dev, 0);
457 }
458 spin_unlock_irqrestore(&dev->event_lock, flags);
459}
460
461void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
462{
463 struct drm_pending_vblank_event *event;
464 struct drm_device *dev = scrtc->crtc.dev;
51c13278
LP		 465 unsigned long flags;
466
467 spin_lock_irqsave(&dev->event_lock, flags);
468 event = scrtc->event;
469 scrtc->event = NULL;
f7e96d7e
RC		 470 if (event) {
471 drm_send_vblank_event(dev, 0, event);
472 drm_vblank_put(dev, 0);
473 }
51c13278 474 spin_unlock_irqrestore(&dev->event_lock, flags);
51c13278
LP		 475}
476
477static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
478 struct drm_framebuffer *fb,
ed8d1975
KP		 479 struct drm_pending_vblank_event *event,
480 uint32_t page_flip_flags)
51c13278
LP		 481{
482 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
483 struct drm_device *dev = scrtc->crtc.dev;
484 unsigned long flags;
485
486 spin_lock_irqsave(&dev->event_lock, flags);
487 if (scrtc->event != NULL) {
488 spin_unlock_irqrestore(&dev->event_lock, flags);
489 return -EBUSY;
490 }
491 spin_unlock_irqrestore(&dev->event_lock, flags);
492
f4510a27 493 crtc->primary->fb = fb;
51c13278
LP		 494 shmob_drm_crtc_update_base(scrtc);
495
496 if (event) {
497 event->pipe = 0;
17f0efc4 498 drm_vblank_get(dev, 0);
51c13278
LP		 499 spin_lock_irqsave(&dev->event_lock, flags);
500 scrtc->event = event;
501 spin_unlock_irqrestore(&dev->event_lock, flags);
51c13278
LP		 502 }
503
504 return 0;
505}
506
507static const struct drm_crtc_funcs crtc_funcs = {
508 .destroy = drm_crtc_cleanup,
509 .set_config = drm_crtc_helper_set_config,
510 .page_flip = shmob_drm_crtc_page_flip,
511};
512
513int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
514{
515 struct drm_crtc *crtc = &sdev->crtc.crtc;
516 int ret;
517
518 sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
519
520 ret = drm_crtc_init(sdev->ddev, crtc, &crtc_funcs);
521 if (ret < 0)
522 return ret;
523
524 drm_crtc_helper_add(crtc, &crtc_helper_funcs);
525
526 return 0;
527}
528
529/* -----------------------------------------------------------------------------
530 * Encoder
531 */
532
533#define to_shmob_encoder(e) \
534 container_of(e, struct shmob_drm_encoder, encoder)
535
536static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
537{
538 struct shmob_drm_encoder *senc = to_shmob_encoder(encoder);
539 struct shmob_drm_device *sdev = encoder->dev->dev_private;
540 struct shmob_drm_connector *scon = &sdev->connector;
541
542 if (senc->dpms == mode)
543 return;
544
545 shmob_drm_backlight_dpms(scon, mode);
546
547 senc->dpms = mode;
548}
549
550static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
551 const struct drm_display_mode *mode,
552 struct drm_display_mode *adjusted_mode)
553{
554 struct drm_device *dev = encoder->dev;
555 struct shmob_drm_device *sdev = dev->dev_private;
556 struct drm_connector *connector = &sdev->connector.connector;
557 const struct drm_display_mode *panel_mode;
558
559 if (list_empty(&connector->modes)) {
560 dev_dbg(dev->dev, "mode_fixup: empty modes list\n");
561 return false;
562 }
563
564 /* The flat panel mode is fixed, just copy it to the adjusted mode. */
565 panel_mode = list_first_entry(&connector->modes,
566 struct drm_display_mode, head);
567 drm_mode_copy(adjusted_mode, panel_mode);
568
569 return true;
570}
571
572static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder)
573{
574 /* No-op, everything is handled in the CRTC code. */
575}
576
577static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder,
578 struct drm_display_mode *mode,
579 struct drm_display_mode *adjusted_mode)
580{
581 /* No-op, everything is handled in the CRTC code. */
582}
583
584static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder)
585{
586 /* No-op, everything is handled in the CRTC code. */
587}
588
589static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
590 .dpms = shmob_drm_encoder_dpms,
591 .mode_fixup = shmob_drm_encoder_mode_fixup,
592 .prepare = shmob_drm_encoder_mode_prepare,
593 .commit = shmob_drm_encoder_mode_commit,
594 .mode_set = shmob_drm_encoder_mode_set,
595};
596
597static void shmob_drm_encoder_destroy(struct drm_encoder *encoder)
598{
599 drm_encoder_cleanup(encoder);
600}
601
602static const struct drm_encoder_funcs encoder_funcs = {
603 .destroy = shmob_drm_encoder_destroy,
604};
605
606int shmob_drm_encoder_create(struct shmob_drm_device *sdev)
607{
608 struct drm_encoder *encoder = &sdev->encoder.encoder;
609 int ret;
610
611 sdev->encoder.dpms = DRM_MODE_DPMS_OFF;
612
613 encoder->possible_crtcs = 1;
614
615 ret = drm_encoder_init(sdev->ddev, encoder, &encoder_funcs,
13a3d91f 616 DRM_MODE_ENCODER_LVDS, NULL);
51c13278
LP		 617 if (ret < 0)
618 return ret;
619
620 drm_encoder_helper_add(encoder, &encoder_helper_funcs);
621
622 return 0;
623}
624
625void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, bool enable)
626{
627 unsigned long flags;
628 u32 ldintr;
629
630 /* Be careful not to acknowledge any pending interrupt. */
631 spin_lock_irqsave(&sdev->irq_lock, flags);
632 ldintr = lcdc_read(sdev, LDINTR) | LDINTR_STATUS_MASK;
633 if (enable)
634 ldintr |= LDINTR_VEE;
635 else
636 ldintr &= ~LDINTR_VEE;
637 lcdc_write(sdev, LDINTR, ldintr);
638 spin_unlock_irqrestore(&sdev->irq_lock, flags);
639}
640
641/* -----------------------------------------------------------------------------
642 * Connector
643 */
644
645#define to_shmob_connector(c) \
646 container_of(c, struct shmob_drm_connector, connector)
647
648static int shmob_drm_connector_get_modes(struct drm_connector *connector)
649{
650 struct shmob_drm_device *sdev = connector->dev->dev_private;
651 struct drm_display_mode *mode;
652
653 mode = drm_mode_create(connector->dev);
654 if (mode == NULL)
655 return 0;
656
657 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
658 mode->clock = sdev->pdata->panel.mode.clock;
659 mode->hdisplay = sdev->pdata->panel.mode.hdisplay;
660 mode->hsync_start = sdev->pdata->panel.mode.hsync_start;
661 mode->hsync_end = sdev->pdata->panel.mode.hsync_end;
662 mode->htotal = sdev->pdata->panel.mode.htotal;
663 mode->vdisplay = sdev->pdata->panel.mode.vdisplay;
664 mode->vsync_start = sdev->pdata->panel.mode.vsync_start;
665 mode->vsync_end = sdev->pdata->panel.mode.vsync_end;
666 mode->vtotal = sdev->pdata->panel.mode.vtotal;
667 mode->flags = sdev->pdata->panel.mode.flags;
668
669 drm_mode_set_name(mode);
670 drm_mode_probed_add(connector, mode);
671
672 connector->display_info.width_mm = sdev->pdata->panel.width_mm;
673 connector->display_info.height_mm = sdev->pdata->panel.height_mm;
674
675 return 1;
676}
677
51c13278
LP		 678static struct drm_encoder *
679shmob_drm_connector_best_encoder(struct drm_connector *connector)
680{
681 struct shmob_drm_connector *scon = to_shmob_connector(connector);
682
683 return scon->encoder;
684}
685
686static const struct drm_connector_helper_funcs connector_helper_funcs = {
687 .get_modes = shmob_drm_connector_get_modes,
51c13278
LP		 688 .best_encoder = shmob_drm_connector_best_encoder,
689};
690
691static void shmob_drm_connector_destroy(struct drm_connector *connector)
692{
693 struct shmob_drm_connector *scon = to_shmob_connector(connector);
694
695 shmob_drm_backlight_exit(scon);
34ea3d38 696 drm_connector_unregister(connector);
51c13278
LP		 697 drm_connector_cleanup(connector);
698}
699
700static enum drm_connector_status
701shmob_drm_connector_detect(struct drm_connector *connector, bool force)
702{
703 return connector_status_connected;
704}
705
706static const struct drm_connector_funcs connector_funcs = {
707 .dpms = drm_helper_connector_dpms,
708 .detect = shmob_drm_connector_detect,
709 .fill_modes = drm_helper_probe_single_connector_modes,
710 .destroy = shmob_drm_connector_destroy,
711};
712
713int shmob_drm_connector_create(struct shmob_drm_device *sdev,
714 struct drm_encoder *encoder)
715{
716 struct drm_connector *connector = &sdev->connector.connector;
717 int ret;
718
719 sdev->connector.encoder = encoder;
720
721 connector->display_info.width_mm = sdev->pdata->panel.width_mm;
722 connector->display_info.height_mm = sdev->pdata->panel.height_mm;
723
724 ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
725 DRM_MODE_CONNECTOR_LVDS);
726 if (ret < 0)
727 return ret;
728
729 drm_connector_helper_add(connector, &connector_helper_funcs);
34ea3d38 730 ret = drm_connector_register(connector);
51c13278
LP		 731 if (ret < 0)
732 goto err_cleanup;
733
734 ret = shmob_drm_backlight_init(&sdev->connector);
735 if (ret < 0)
736 goto err_sysfs;
737
738 ret = drm_mode_connector_attach_encoder(connector, encoder);
739 if (ret < 0)
740 goto err_backlight;
741
742 connector->encoder = encoder;
743
744 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
c708a56d 745 drm_object_property_set_value(&connector->base,
51c13278
LP		 746 sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
747
748 return 0;
749
750err_backlight:
751 shmob_drm_backlight_exit(&sdev->connector);
752err_sysfs:
34ea3d38 753 drm_connector_unregister(connector);
51c13278
LP		 754err_cleanup:
755 drm_connector_cleanup(connector);
756 return ret;
757}
Linux kernel - Deliverables
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