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1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * shmob_drm_crtc.c -- SH Mobile DRM CRTCs
4 *
5 * Copyright (C) 2012 Renesas Electronics Corporation
6 *
7 * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 */
9
10#include <linux/backlight.h>
11#include <linux/clk.h>
12
13#include <drm/drm_crtc.h>
14#include <drm/drm_crtc_helper.h>
15#include <drm/drm_fb_cma_helper.h>
16#include <drm/drm_fourcc.h>
17#include <drm/drm_gem_cma_helper.h>
18#include <drm/drm_plane_helper.h>
19#include <drm/drm_probe_helper.h>
20#include <drm/drm_vblank.h>
21
22#include "shmob_drm_backlight.h"
23#include "shmob_drm_crtc.h"
24#include "shmob_drm_drv.h"
25#include "shmob_drm_kms.h"
26#include "shmob_drm_plane.h"
27#include "shmob_drm_regs.h"
28
29/*
30 * TODO: panel support
31 */
32
33/* -----------------------------------------------------------------------------
34 * Clock management
35 */
36
37static int shmob_drm_clk_on(struct shmob_drm_device *sdev)
38{
39 int ret;
40
41 if (sdev->clock) {
42 ret = clk_prepare_enable(sdev->clock);
43 if (ret < 0)
44 return ret;
45 }
46
47 return 0;
48}
49
50static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
51{
52 if (sdev->clock)
53 clk_disable_unprepare(sdev->clock);
54}
55
56/* -----------------------------------------------------------------------------
57 * CRTC
58 */
59
60static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
61{
62 struct drm_crtc *crtc = &scrtc->crtc;
63 struct shmob_drm_device *sdev = crtc->dev->dev_private;
64 const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
65 const struct drm_display_mode *mode = &crtc->mode;
66 u32 value;
67
68 value = sdev->ldmt1r
69 | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : LDMT1R_VPOL)
70 | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : LDMT1R_HPOL)
71 | ((idata->flags & SHMOB_DRM_IFACE_FL_DWPOL) ? LDMT1R_DWPOL : 0)
72 | ((idata->flags & SHMOB_DRM_IFACE_FL_DIPOL) ? LDMT1R_DIPOL : 0)
73 | ((idata->flags & SHMOB_DRM_IFACE_FL_DAPOL) ? LDMT1R_DAPOL : 0)
74 | ((idata->flags & SHMOB_DRM_IFACE_FL_HSCNT) ? LDMT1R_HSCNT : 0)
75 | ((idata->flags & SHMOB_DRM_IFACE_FL_DWCNT) ? LDMT1R_DWCNT : 0);
76 lcdc_write(sdev, LDMT1R, value);
77
78 if (idata->interface >= SHMOB_DRM_IFACE_SYS8A &&
79 idata->interface <= SHMOB_DRM_IFACE_SYS24) {
80 /* Setup SYS bus. */
81 value = (idata->sys.cs_setup << LDMT2R_CSUP_SHIFT)
82 | (idata->sys.vsync_active_high ? LDMT2R_RSV : 0)
83 | (idata->sys.vsync_dir_input ? LDMT2R_VSEL : 0)
84 | (idata->sys.write_setup << LDMT2R_WCSC_SHIFT)
85 | (idata->sys.write_cycle << LDMT2R_WCEC_SHIFT)
86 | (idata->sys.write_strobe << LDMT2R_WCLW_SHIFT);
87 lcdc_write(sdev, LDMT2R, value);
88
89 value = (idata->sys.read_latch << LDMT3R_RDLC_SHIFT)
90 | (idata->sys.read_setup << LDMT3R_RCSC_SHIFT)
91 | (idata->sys.read_cycle << LDMT3R_RCEC_SHIFT)
92 | (idata->sys.read_strobe << LDMT3R_RCLW_SHIFT);
93 lcdc_write(sdev, LDMT3R, value);
94 }
95
96 value = ((mode->hdisplay / 8) << 16) /* HDCN */
97 | (mode->htotal / 8); /* HTCN */
98 lcdc_write(sdev, LDHCNR, value);
99
100 value = (((mode->hsync_end - mode->hsync_start) / 8) << 16) /* HSYNW */
101 | (mode->hsync_start / 8); /* HSYNP */
102 lcdc_write(sdev, LDHSYNR, value);
103
104 value = ((mode->hdisplay & 7) << 24) | ((mode->htotal & 7) << 16)
105 | (((mode->hsync_end - mode->hsync_start) & 7) << 8)
106 | (mode->hsync_start & 7);
107 lcdc_write(sdev, LDHAJR, value);
108
109 value = ((mode->vdisplay) << 16) /* VDLN */
110 | mode->vtotal; /* VTLN */
111 lcdc_write(sdev, LDVLNR, value);
112
113 value = ((mode->vsync_end - mode->vsync_start) << 16) /* VSYNW */
114 | mode->vsync_start; /* VSYNP */
115 lcdc_write(sdev, LDVSYNR, value);
116}
117
118static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
119{
120 struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private;
121 u32 value;
122
123 value = lcdc_read(sdev, LDCNT2R);
124 if (start)
125 lcdc_write(sdev, LDCNT2R, value | LDCNT2R_DO);
126 else
127 lcdc_write(sdev, LDCNT2R, value & ~LDCNT2R_DO);
128
129 /* Wait until power is applied/stopped. */
130 while (1) {
131 value = lcdc_read(sdev, LDPMR) & LDPMR_LPS;
132 if ((start && value) || (!start && !value))
133 break;
134
135 cpu_relax();
136 }
137
138 if (!start) {
139 /* Stop the dot clock. */
140 lcdc_write(sdev, LDDCKSTPR, LDDCKSTPR_DCKSTP);
141 }
142}
143
144/*
145 * shmob_drm_crtc_start - Configure and start the LCDC
146 * @scrtc: the SH Mobile CRTC
147 *
148 * Configure and start the LCDC device. External devices (clocks, MERAM, panels,
149 * ...) are not touched by this function.
150 */
151static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
152{
153 struct drm_crtc *crtc = &scrtc->crtc;
154 struct shmob_drm_device *sdev = crtc->dev->dev_private;
155 const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
156 const struct shmob_drm_format_info *format;
157 struct drm_device *dev = sdev->ddev;
158 struct drm_plane *plane;
159 u32 value;
160 int ret;
161
162 if (scrtc->started)
163 return;
164
165 format = shmob_drm_format_info(crtc->primary->fb->format->format);
166 if (WARN_ON(format == NULL))
167 return;
168
169 /* Enable clocks before accessing the hardware. */
170 ret = shmob_drm_clk_on(sdev);
171 if (ret < 0)
172 return;
173
174 /* Reset and enable the LCDC. */
175 lcdc_write(sdev, LDCNT2R, lcdc_read(sdev, LDCNT2R) | LDCNT2R_BR);
176 lcdc_wait_bit(sdev, LDCNT2R, LDCNT2R_BR, 0);
177 lcdc_write(sdev, LDCNT2R, LDCNT2R_ME);
178
179 /* Stop the LCDC first and disable all interrupts. */
180 shmob_drm_crtc_start_stop(scrtc, false);
181 lcdc_write(sdev, LDINTR, 0);
182
183 /* Configure power supply, dot clocks and start them. */
184 lcdc_write(sdev, LDPMR, 0);
185
186 value = sdev->lddckr;
187 if (idata->clk_div) {
188 /* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider
189 * denominator.
190 */
191 lcdc_write(sdev, LDDCKPAT1R, 0);
192 lcdc_write(sdev, LDDCKPAT2R, (1 << (idata->clk_div / 2)) - 1);
193
194 if (idata->clk_div == 1)
195 value |= LDDCKR_MOSEL;
196 else
197 value |= idata->clk_div;
198 }
199
200 lcdc_write(sdev, LDDCKR, value);
201 lcdc_write(sdev, LDDCKSTPR, 0);
202 lcdc_wait_bit(sdev, LDDCKSTPR, ~0, 0);
203
204 /* TODO: Setup SYS panel */
205
206 /* Setup geometry, format, frame buffer memory and operation mode. */
207 shmob_drm_crtc_setup_geometry(scrtc);
208
209 /* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
210 lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1);
211 lcdc_write(sdev, LDMLSR, scrtc->line_size);
212 lcdc_write(sdev, LDSA1R, scrtc->dma[0]);
213 if (format->yuv)
214 lcdc_write(sdev, LDSA2R, scrtc->dma[1]);
215 lcdc_write(sdev, LDSM1R, 0);
216
217 /* Word and long word swap. */
218 switch (format->fourcc) {
219 case DRM_FORMAT_RGB565:
220 case DRM_FORMAT_NV21:
221 case DRM_FORMAT_NV61:
222 case DRM_FORMAT_NV42:
223 value = LDDDSR_LS | LDDDSR_WS;
224 break;
225 case DRM_FORMAT_RGB888:
226 case DRM_FORMAT_NV12:
227 case DRM_FORMAT_NV16:
228 case DRM_FORMAT_NV24:
229 value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS;
230 break;
231 case DRM_FORMAT_ARGB8888:
232 default:
233 value = LDDDSR_LS;
234 break;
235 }
236 lcdc_write(sdev, LDDDSR, value);
237
238 /* Setup planes. */
239 drm_for_each_legacy_plane(plane, dev) {
240 if (plane->crtc == crtc)
241 shmob_drm_plane_setup(plane);
242 }
243
244 /* Enable the display output. */
245 lcdc_write(sdev, LDCNT1R, LDCNT1R_DE);
246
247 shmob_drm_crtc_start_stop(scrtc, true);
248
249 scrtc->started = true;
250}
251
252static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
253{
254 struct drm_crtc *crtc = &scrtc->crtc;
255 struct shmob_drm_device *sdev = crtc->dev->dev_private;
256
257 if (!scrtc->started)
258 return;
259
260 /* Stop the LCDC. */
261 shmob_drm_crtc_start_stop(scrtc, false);
262
263 /* Disable the display output. */
264 lcdc_write(sdev, LDCNT1R, 0);
265
266 /* Stop clocks. */
267 shmob_drm_clk_off(sdev);
268
269 scrtc->started = false;
270}
271
272void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc)
273{
274 shmob_drm_crtc_stop(scrtc);
275}
276
277void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc)
278{
279 if (scrtc->dpms != DRM_MODE_DPMS_ON)
280 return;
281
282 shmob_drm_crtc_start(scrtc);
283}
284
285static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
286 int x, int y)
287{
288 struct drm_crtc *crtc = &scrtc->crtc;
289 struct drm_framebuffer *fb = crtc->primary->fb;
290 struct drm_gem_cma_object *gem;
291 unsigned int bpp;
292
293 bpp = scrtc->format->yuv ? 8 : scrtc->format->bpp;
294 gem = drm_fb_cma_get_gem_obj(fb, 0);
295 scrtc->dma[0] = gem->paddr + fb->offsets[0]
296 + y * fb->pitches[0] + x * bpp / 8;
297
298 if (scrtc->format->yuv) {
299 bpp = scrtc->format->bpp - 8;
300 gem = drm_fb_cma_get_gem_obj(fb, 1);
301 scrtc->dma[1] = gem->paddr + fb->offsets[1]
302 + y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
303 + x * (bpp == 16 ? 2 : 1);
304 }
305}
306
307static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
308{
309 struct drm_crtc *crtc = &scrtc->crtc;
310 struct shmob_drm_device *sdev = crtc->dev->dev_private;
311
312 shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y);
313
314 lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]);
315 if (scrtc->format->yuv)
316 lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]);
317
318 lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
319}
320
321#define to_shmob_crtc(c) container_of(c, struct shmob_drm_crtc, crtc)
322
323static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
324{
325 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
326
327 if (scrtc->dpms == mode)
328 return;
329
330 if (mode == DRM_MODE_DPMS_ON)
331 shmob_drm_crtc_start(scrtc);
332 else
333 shmob_drm_crtc_stop(scrtc);
334
335 scrtc->dpms = mode;
336}
337
338static void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc)
339{
340 shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
341}
342
343static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
344 struct drm_display_mode *mode,
345 struct drm_display_mode *adjusted_mode,
346 int x, int y,
347 struct drm_framebuffer *old_fb)
348{
349 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
350 struct shmob_drm_device *sdev = crtc->dev->dev_private;
351 const struct shmob_drm_format_info *format;
352
353 format = shmob_drm_format_info(crtc->primary->fb->format->format);
354 if (format == NULL) {
355 dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n",
356 crtc->primary->fb->format->format);
357 return -EINVAL;
358 }
359
360 scrtc->format = format;
361 scrtc->line_size = crtc->primary->fb->pitches[0];
362
363 shmob_drm_crtc_compute_base(scrtc, x, y);
364
365 return 0;
366}
367
368static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
369{
370 shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
371}
372
373static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
374 struct drm_framebuffer *old_fb)
375{
376 shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
377
378 return 0;
379}
380
381static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
382 .dpms = shmob_drm_crtc_dpms,
383 .prepare = shmob_drm_crtc_mode_prepare,
384 .commit = shmob_drm_crtc_mode_commit,
385 .mode_set = shmob_drm_crtc_mode_set,
386 .mode_set_base = shmob_drm_crtc_mode_set_base,
387};
388
389void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
390{
391 struct drm_pending_vblank_event *event;
392 struct drm_device *dev = scrtc->crtc.dev;
393 unsigned long flags;
394
395 spin_lock_irqsave(&dev->event_lock, flags);
396 event = scrtc->event;
397 scrtc->event = NULL;
398 if (event) {
399 drm_crtc_send_vblank_event(&scrtc->crtc, event);
400 drm_crtc_vblank_put(&scrtc->crtc);
401 }
402 spin_unlock_irqrestore(&dev->event_lock, flags);
403}
404
405static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
406 struct drm_framebuffer *fb,
407 struct drm_pending_vblank_event *event,
408 uint32_t page_flip_flags,
409 struct drm_modeset_acquire_ctx *ctx)
410{
411 struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
412 struct drm_device *dev = scrtc->crtc.dev;
413 unsigned long flags;
414
415 spin_lock_irqsave(&dev->event_lock, flags);
416 if (scrtc->event != NULL) {
417 spin_unlock_irqrestore(&dev->event_lock, flags);
418 return -EBUSY;
419 }
420 spin_unlock_irqrestore(&dev->event_lock, flags);
421
422 crtc->primary->fb = fb;
423 shmob_drm_crtc_update_base(scrtc);
424
425 if (event) {
426 event->pipe = 0;
427 drm_crtc_vblank_get(&scrtc->crtc);
428 spin_lock_irqsave(&dev->event_lock, flags);
429 scrtc->event = event;
430 spin_unlock_irqrestore(&dev->event_lock, flags);
431 }
432
433 return 0;
434}
435
436static void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev,
437 bool enable)
438{
439 unsigned long flags;
440 u32 ldintr;
441
442 /* Be careful not to acknowledge any pending interrupt. */
443 spin_lock_irqsave(&sdev->irq_lock, flags);
444 ldintr = lcdc_read(sdev, LDINTR) | LDINTR_STATUS_MASK;
445 if (enable)
446 ldintr |= LDINTR_VEE;
447 else
448 ldintr &= ~LDINTR_VEE;
449 lcdc_write(sdev, LDINTR, ldintr);
450 spin_unlock_irqrestore(&sdev->irq_lock, flags);
451}
452
453static int shmob_drm_enable_vblank(struct drm_crtc *crtc)
454{
455 struct shmob_drm_device *sdev = crtc->dev->dev_private;
456
457 shmob_drm_crtc_enable_vblank(sdev, true);
458
459 return 0;
460}
461
462static void shmob_drm_disable_vblank(struct drm_crtc *crtc)
463{
464 struct shmob_drm_device *sdev = crtc->dev->dev_private;
465
466 shmob_drm_crtc_enable_vblank(sdev, false);
467}
468
469static const struct drm_crtc_funcs crtc_funcs = {
470 .destroy = drm_crtc_cleanup,
471 .set_config = drm_crtc_helper_set_config,
472 .page_flip = shmob_drm_crtc_page_flip,
473 .enable_vblank = shmob_drm_enable_vblank,
474 .disable_vblank = shmob_drm_disable_vblank,
475};
476
477int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
478{
479 struct drm_crtc *crtc = &sdev->crtc.crtc;
480 int ret;
481
482 sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
483
484 ret = drm_crtc_init(sdev->ddev, crtc, &crtc_funcs);
485 if (ret < 0)
486 return ret;
487
488 drm_crtc_helper_add(crtc, &crtc_helper_funcs);
489
490 return 0;
491}
492
493/* -----------------------------------------------------------------------------
494 * Encoder
495 */
496
497#define to_shmob_encoder(e) \
498 container_of(e, struct shmob_drm_encoder, encoder)
499
500static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
501{
502 struct shmob_drm_encoder *senc = to_shmob_encoder(encoder);
503 struct shmob_drm_device *sdev = encoder->dev->dev_private;
504 struct shmob_drm_connector *scon = &sdev->connector;
505
506 if (senc->dpms == mode)
507 return;
508
509 shmob_drm_backlight_dpms(scon, mode);
510
511 senc->dpms = mode;
512}
513
514static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
515 const struct drm_display_mode *mode,
516 struct drm_display_mode *adjusted_mode)
517{
518 struct drm_device *dev = encoder->dev;
519 struct shmob_drm_device *sdev = dev->dev_private;
520 struct drm_connector *connector = &sdev->connector.connector;
521 const struct drm_display_mode *panel_mode;
522
523 if (list_empty(&connector->modes)) {
524 dev_dbg(dev->dev, "mode_fixup: empty modes list\n");
525 return false;
526 }
527
528 /* The flat panel mode is fixed, just copy it to the adjusted mode. */
529 panel_mode = list_first_entry(&connector->modes,
530 struct drm_display_mode, head);
531 drm_mode_copy(adjusted_mode, panel_mode);
532
533 return true;
534}
535
536static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder)
537{
538 /* No-op, everything is handled in the CRTC code. */
539}
540
541static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder,
542 struct drm_display_mode *mode,
543 struct drm_display_mode *adjusted_mode)
544{
545 /* No-op, everything is handled in the CRTC code. */
546}
547
548static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder)
549{
550 /* No-op, everything is handled in the CRTC code. */
551}
552
553static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
554 .dpms = shmob_drm_encoder_dpms,
555 .mode_fixup = shmob_drm_encoder_mode_fixup,
556 .prepare = shmob_drm_encoder_mode_prepare,
557 .commit = shmob_drm_encoder_mode_commit,
558 .mode_set = shmob_drm_encoder_mode_set,
559};
560
561static void shmob_drm_encoder_destroy(struct drm_encoder *encoder)
562{
563 drm_encoder_cleanup(encoder);
564}
565
566static const struct drm_encoder_funcs encoder_funcs = {
567 .destroy = shmob_drm_encoder_destroy,
568};
569
570int shmob_drm_encoder_create(struct shmob_drm_device *sdev)
571{
572 struct drm_encoder *encoder = &sdev->encoder.encoder;
573 int ret;
574
575 sdev->encoder.dpms = DRM_MODE_DPMS_OFF;
576
577 encoder->possible_crtcs = 1;
578
579 ret = drm_encoder_init(sdev->ddev, encoder, &encoder_funcs,
580 DRM_MODE_ENCODER_LVDS, NULL);
581 if (ret < 0)
582 return ret;
583
584 drm_encoder_helper_add(encoder, &encoder_helper_funcs);
585
586 return 0;
587}
588
589/* -----------------------------------------------------------------------------
590 * Connector
591 */
592
593#define to_shmob_connector(c) \
594 container_of(c, struct shmob_drm_connector, connector)
595
596static int shmob_drm_connector_get_modes(struct drm_connector *connector)
597{
598 struct shmob_drm_device *sdev = connector->dev->dev_private;
599 struct drm_display_mode *mode;
600
601 mode = drm_mode_create(connector->dev);
602 if (mode == NULL)
603 return 0;
604
605 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
606 mode->clock = sdev->pdata->panel.mode.clock;
607 mode->hdisplay = sdev->pdata->panel.mode.hdisplay;
608 mode->hsync_start = sdev->pdata->panel.mode.hsync_start;
609 mode->hsync_end = sdev->pdata->panel.mode.hsync_end;
610 mode->htotal = sdev->pdata->panel.mode.htotal;
611 mode->vdisplay = sdev->pdata->panel.mode.vdisplay;
612 mode->vsync_start = sdev->pdata->panel.mode.vsync_start;
613 mode->vsync_end = sdev->pdata->panel.mode.vsync_end;
614 mode->vtotal = sdev->pdata->panel.mode.vtotal;
615 mode->flags = sdev->pdata->panel.mode.flags;
616
617 drm_mode_set_name(mode);
618 drm_mode_probed_add(connector, mode);
619
620 connector->display_info.width_mm = sdev->pdata->panel.width_mm;
621 connector->display_info.height_mm = sdev->pdata->panel.height_mm;
622
623 return 1;
624}
625
626static struct drm_encoder *
627shmob_drm_connector_best_encoder(struct drm_connector *connector)
628{
629 struct shmob_drm_connector *scon = to_shmob_connector(connector);
630
631 return scon->encoder;
632}
633
634static const struct drm_connector_helper_funcs connector_helper_funcs = {
635 .get_modes = shmob_drm_connector_get_modes,
636 .best_encoder = shmob_drm_connector_best_encoder,
637};
638
639static void shmob_drm_connector_destroy(struct drm_connector *connector)
640{
641 struct shmob_drm_connector *scon = to_shmob_connector(connector);
642
643 shmob_drm_backlight_exit(scon);
644 drm_connector_unregister(connector);
645 drm_connector_cleanup(connector);
646}
647
648static const struct drm_connector_funcs connector_funcs = {
649 .dpms = drm_helper_connector_dpms,
650 .fill_modes = drm_helper_probe_single_connector_modes,
651 .destroy = shmob_drm_connector_destroy,
652};
653
654int shmob_drm_connector_create(struct shmob_drm_device *sdev,
655 struct drm_encoder *encoder)
656{
657 struct drm_connector *connector = &sdev->connector.connector;
658 int ret;
659
660 sdev->connector.encoder = encoder;
661
662 connector->display_info.width_mm = sdev->pdata->panel.width_mm;
663 connector->display_info.height_mm = sdev->pdata->panel.height_mm;
664
665 ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
666 DRM_MODE_CONNECTOR_LVDS);
667 if (ret < 0)
668 return ret;
669
670 drm_connector_helper_add(connector, &connector_helper_funcs);
671
672 ret = shmob_drm_backlight_init(&sdev->connector);
673 if (ret < 0)
674 goto err_cleanup;
675
676 ret = drm_connector_attach_encoder(connector, encoder);
677 if (ret < 0)
678 goto err_backlight;
679
680 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
681 drm_object_property_set_value(&connector->base,
682 sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
683
684 return 0;
685
686err_backlight:
687 shmob_drm_backlight_exit(&sdev->connector);
688err_cleanup:
689 drm_connector_cleanup(connector);
690 return ret;
691}