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  1/*
  2 * shmob_drm_crtc.c  --  SH Mobile DRM CRTCs
  3 *
  4 * Copyright (C) 2012 Renesas Electronics 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#include <drm/drm_plane_helper.h>
 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
 41static int shmob_drm_clk_on(struct shmob_drm_device *sdev)
 42{
 43	int ret;
 44
 45	if (sdev->clock) {
 46		ret = clk_prepare_enable(sdev->clock);
 47		if (ret < 0)
 48			return ret;
 49	}
 50#if 0
 51	if (sdev->meram_dev && sdev->meram_dev->pdev)
 52		pm_runtime_get_sync(&sdev->meram_dev->pdev->dev);
 53#endif
 54
 55	return 0;
 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)
 65		clk_disable_unprepare(sdev->clock);
 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;
172	int ret;
173
174	if (scrtc->started)
175		return;
176
177	format = shmob_drm_format_info(crtc->primary->fb->pixel_format);
178	if (WARN_ON(format == NULL))
179		return;
180
181	/* Enable clocks before accessing the hardware. */
182	ret = shmob_drm_clk_on(sdev);
183	if (ret < 0)
184		return;
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. */
251	drm_for_each_legacy_plane(plane, dev) {
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;
307	struct drm_framebuffer *fb = crtc->primary->fb;
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 void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc)
363{
364	shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
365}
366
367static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
368				   struct drm_display_mode *mode,
369				   struct drm_display_mode *adjusted_mode,
370				   int x, int y,
371				   struct drm_framebuffer *old_fb)
372{
373	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
374	struct shmob_drm_device *sdev = crtc->dev->dev_private;
375	const struct sh_mobile_meram_cfg *mdata = sdev->pdata->meram;
376	const struct shmob_drm_format_info *format;
377	void *cache;
378
379	format = shmob_drm_format_info(crtc->primary->fb->pixel_format);
380	if (format == NULL) {
381		dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n",
382			crtc->primary->fb->pixel_format);
383		return -EINVAL;
384	}
385
386	scrtc->format = format;
387	scrtc->line_size = crtc->primary->fb->pitches[0];
388
389	if (sdev->meram) {
390		/* Enable MERAM cache if configured. We need to de-init
391		 * configured ICBs before we can re-initialize them.
392		 */
393		if (scrtc->cache) {
394			sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
395			scrtc->cache = NULL;
396		}
397
398		cache = sh_mobile_meram_cache_alloc(sdev->meram, mdata,
399						    crtc->primary->fb->pitches[0],
400						    adjusted_mode->vdisplay,
401						    format->meram,
402						    &scrtc->line_size);
403		if (!IS_ERR(cache))
404			scrtc->cache = cache;
405	}
406
407	shmob_drm_crtc_compute_base(scrtc, x, y);
408
409	return 0;
410}
411
412static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
413{
414	shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
415}
416
417static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
418					struct drm_framebuffer *old_fb)
419{
420	shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
421
422	return 0;
423}
424
425static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
426	.dpms = shmob_drm_crtc_dpms,
427	.prepare = shmob_drm_crtc_mode_prepare,
428	.commit = shmob_drm_crtc_mode_commit,
429	.mode_set = shmob_drm_crtc_mode_set,
430	.mode_set_base = shmob_drm_crtc_mode_set_base,
431};
432
433void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
434{
435	struct drm_pending_vblank_event *event;
436	struct drm_device *dev = scrtc->crtc.dev;
437	unsigned long flags;
438
439	spin_lock_irqsave(&dev->event_lock, flags);
440	event = scrtc->event;
441	scrtc->event = NULL;
442	if (event) {
443		drm_send_vblank_event(dev, 0, event);
444		drm_vblank_put(dev, 0);
445	}
446	spin_unlock_irqrestore(&dev->event_lock, flags);
447}
448
449static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
450				    struct drm_framebuffer *fb,
451				    struct drm_pending_vblank_event *event,
452				    uint32_t page_flip_flags)
453{
454	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
455	struct drm_device *dev = scrtc->crtc.dev;
456	unsigned long flags;
457
458	spin_lock_irqsave(&dev->event_lock, flags);
459	if (scrtc->event != NULL) {
460		spin_unlock_irqrestore(&dev->event_lock, flags);
461		return -EBUSY;
462	}
463	spin_unlock_irqrestore(&dev->event_lock, flags);
464
465	crtc->primary->fb = fb;
466	shmob_drm_crtc_update_base(scrtc);
467
468	if (event) {
469		event->pipe = 0;
470		drm_vblank_get(dev, 0);
471		spin_lock_irqsave(&dev->event_lock, flags);
472		scrtc->event = event;
473		spin_unlock_irqrestore(&dev->event_lock, flags);
474	}
475
476	return 0;
477}
478
479static const struct drm_crtc_funcs crtc_funcs = {
480	.destroy = drm_crtc_cleanup,
481	.set_config = drm_crtc_helper_set_config,
482	.page_flip = shmob_drm_crtc_page_flip,
483};
484
485int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
486{
487	struct drm_crtc *crtc = &sdev->crtc.crtc;
488	int ret;
489
490	sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
491
492	ret = drm_crtc_init(sdev->ddev, crtc, &crtc_funcs);
493	if (ret < 0)
494		return ret;
495
496	drm_crtc_helper_add(crtc, &crtc_helper_funcs);
497
498	return 0;
499}
500
501/* -----------------------------------------------------------------------------
502 * Encoder
503 */
504
505#define to_shmob_encoder(e) \
506	container_of(e, struct shmob_drm_encoder, encoder)
507
508static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
509{
510	struct shmob_drm_encoder *senc = to_shmob_encoder(encoder);
511	struct shmob_drm_device *sdev = encoder->dev->dev_private;
512	struct shmob_drm_connector *scon = &sdev->connector;
513
514	if (senc->dpms == mode)
515		return;
516
517	shmob_drm_backlight_dpms(scon, mode);
518
519	senc->dpms = mode;
520}
521
522static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
523					 const struct drm_display_mode *mode,
524					 struct drm_display_mode *adjusted_mode)
525{
526	struct drm_device *dev = encoder->dev;
527	struct shmob_drm_device *sdev = dev->dev_private;
528	struct drm_connector *connector = &sdev->connector.connector;
529	const struct drm_display_mode *panel_mode;
530
531	if (list_empty(&connector->modes)) {
532		dev_dbg(dev->dev, "mode_fixup: empty modes list\n");
533		return false;
534	}
535
536	/* The flat panel mode is fixed, just copy it to the adjusted mode. */
537	panel_mode = list_first_entry(&connector->modes,
538				      struct drm_display_mode, head);
539	drm_mode_copy(adjusted_mode, panel_mode);
540
541	return true;
542}
543
544static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder)
545{
546	/* No-op, everything is handled in the CRTC code. */
547}
548
549static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder,
550				       struct drm_display_mode *mode,
551				       struct drm_display_mode *adjusted_mode)
552{
553	/* No-op, everything is handled in the CRTC code. */
554}
555
556static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder)
557{
558	/* No-op, everything is handled in the CRTC code. */
559}
560
561static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
562	.dpms = shmob_drm_encoder_dpms,
563	.mode_fixup = shmob_drm_encoder_mode_fixup,
564	.prepare = shmob_drm_encoder_mode_prepare,
565	.commit = shmob_drm_encoder_mode_commit,
566	.mode_set = shmob_drm_encoder_mode_set,
567};
568
569static void shmob_drm_encoder_destroy(struct drm_encoder *encoder)
570{
571	drm_encoder_cleanup(encoder);
572}
573
574static const struct drm_encoder_funcs encoder_funcs = {
575	.destroy = shmob_drm_encoder_destroy,
576};
577
578int shmob_drm_encoder_create(struct shmob_drm_device *sdev)
579{
580	struct drm_encoder *encoder = &sdev->encoder.encoder;
581	int ret;
582
583	sdev->encoder.dpms = DRM_MODE_DPMS_OFF;
584
585	encoder->possible_crtcs = 1;
586
587	ret = drm_encoder_init(sdev->ddev, encoder, &encoder_funcs,
588			       DRM_MODE_ENCODER_LVDS, NULL);
589	if (ret < 0)
590		return ret;
591
592	drm_encoder_helper_add(encoder, &encoder_helper_funcs);
593
594	return 0;
595}
596
597void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, bool enable)
598{
599	unsigned long flags;
600	u32 ldintr;
601
602	/* Be careful not to acknowledge any pending interrupt. */
603	spin_lock_irqsave(&sdev->irq_lock, flags);
604	ldintr = lcdc_read(sdev, LDINTR) | LDINTR_STATUS_MASK;
605	if (enable)
606		ldintr |= LDINTR_VEE;
607	else
608		ldintr &= ~LDINTR_VEE;
609	lcdc_write(sdev, LDINTR, ldintr);
610	spin_unlock_irqrestore(&sdev->irq_lock, flags);
611}
612
613/* -----------------------------------------------------------------------------
614 * Connector
615 */
616
617#define to_shmob_connector(c) \
618	container_of(c, struct shmob_drm_connector, connector)
619
620static int shmob_drm_connector_get_modes(struct drm_connector *connector)
621{
622	struct shmob_drm_device *sdev = connector->dev->dev_private;
623	struct drm_display_mode *mode;
624
625	mode = drm_mode_create(connector->dev);
626	if (mode == NULL)
627		return 0;
628
629	mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
630	mode->clock = sdev->pdata->panel.mode.clock;
631	mode->hdisplay = sdev->pdata->panel.mode.hdisplay;
632	mode->hsync_start = sdev->pdata->panel.mode.hsync_start;
633	mode->hsync_end = sdev->pdata->panel.mode.hsync_end;
634	mode->htotal = sdev->pdata->panel.mode.htotal;
635	mode->vdisplay = sdev->pdata->panel.mode.vdisplay;
636	mode->vsync_start = sdev->pdata->panel.mode.vsync_start;
637	mode->vsync_end = sdev->pdata->panel.mode.vsync_end;
638	mode->vtotal = sdev->pdata->panel.mode.vtotal;
639	mode->flags = sdev->pdata->panel.mode.flags;
640
641	drm_mode_set_name(mode);
642	drm_mode_probed_add(connector, mode);
643
644	connector->display_info.width_mm = sdev->pdata->panel.width_mm;
645	connector->display_info.height_mm = sdev->pdata->panel.height_mm;
646
647	return 1;
648}
649
650static struct drm_encoder *
651shmob_drm_connector_best_encoder(struct drm_connector *connector)
652{
653	struct shmob_drm_connector *scon = to_shmob_connector(connector);
654
655	return scon->encoder;
656}
657
658static const struct drm_connector_helper_funcs connector_helper_funcs = {
659	.get_modes = shmob_drm_connector_get_modes,
660	.best_encoder = shmob_drm_connector_best_encoder,
661};
662
663static void shmob_drm_connector_destroy(struct drm_connector *connector)
664{
665	struct shmob_drm_connector *scon = to_shmob_connector(connector);
666
667	shmob_drm_backlight_exit(scon);
668	drm_connector_unregister(connector);
669	drm_connector_cleanup(connector);
670}
671
672static enum drm_connector_status
673shmob_drm_connector_detect(struct drm_connector *connector, bool force)
674{
675	return connector_status_connected;
676}
677
678static const struct drm_connector_funcs connector_funcs = {
679	.dpms = drm_helper_connector_dpms,
680	.detect = shmob_drm_connector_detect,
681	.fill_modes = drm_helper_probe_single_connector_modes,
682	.destroy = shmob_drm_connector_destroy,
683};
684
685int shmob_drm_connector_create(struct shmob_drm_device *sdev,
686			       struct drm_encoder *encoder)
687{
688	struct drm_connector *connector = &sdev->connector.connector;
689	int ret;
690
691	sdev->connector.encoder = encoder;
692
693	connector->display_info.width_mm = sdev->pdata->panel.width_mm;
694	connector->display_info.height_mm = sdev->pdata->panel.height_mm;
695
696	ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
697				 DRM_MODE_CONNECTOR_LVDS);
698	if (ret < 0)
699		return ret;
700
701	drm_connector_helper_add(connector, &connector_helper_funcs);
702	ret = drm_connector_register(connector);
703	if (ret < 0)
704		goto err_cleanup;
705
706	ret = shmob_drm_backlight_init(&sdev->connector);
707	if (ret < 0)
708		goto err_sysfs;
709
710	ret = drm_mode_connector_attach_encoder(connector, encoder);
711	if (ret < 0)
712		goto err_backlight;
713
714	drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
715	drm_object_property_set_value(&connector->base,
716		sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
717
718	return 0;
719
720err_backlight:
721	shmob_drm_backlight_exit(&sdev->connector);
722err_sysfs:
723	drm_connector_unregister(connector);
724err_cleanup:
725	drm_connector_cleanup(connector);
726	return ret;
727}