Linux Audio

Check our new training course

Loading...
Note: File does not exist in v4.6.
  1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 * Copyright (C) Jernej Skrabec <jernej.skrabec@siol.net>
  4 */
  5
  6#include <drm/drm_atomic.h>
  7#include <drm/drm_atomic_helper.h>
  8#include <drm/drm_crtc.h>
  9#include <drm/drm_fb_cma_helper.h>
 10#include <drm/drm_gem_atomic_helper.h>
 11#include <drm/drm_gem_cma_helper.h>
 12#include <drm/drm_plane_helper.h>
 13#include <drm/drm_probe_helper.h>
 14
 15#include "sun8i_csc.h"
 16#include "sun8i_mixer.h"
 17#include "sun8i_vi_layer.h"
 18#include "sun8i_vi_scaler.h"
 19
 20static void sun8i_vi_layer_enable(struct sun8i_mixer *mixer, int channel,
 21				  int overlay, bool enable, unsigned int zpos,
 22				  unsigned int old_zpos)
 23{
 24	u32 val, bld_base, ch_base;
 25
 26	bld_base = sun8i_blender_base(mixer);
 27	ch_base = sun8i_channel_base(mixer, channel);
 28
 29	DRM_DEBUG_DRIVER("%sabling VI channel %d overlay %d\n",
 30			 enable ? "En" : "Dis", channel, overlay);
 31
 32	if (enable)
 33		val = SUN8I_MIXER_CHAN_VI_LAYER_ATTR_EN;
 34	else
 35		val = 0;
 36
 37	regmap_update_bits(mixer->engine.regs,
 38			   SUN8I_MIXER_CHAN_VI_LAYER_ATTR(ch_base, overlay),
 39			   SUN8I_MIXER_CHAN_VI_LAYER_ATTR_EN, val);
 40
 41	if (!enable || zpos != old_zpos) {
 42		regmap_update_bits(mixer->engine.regs,
 43				   SUN8I_MIXER_BLEND_PIPE_CTL(bld_base),
 44				   SUN8I_MIXER_BLEND_PIPE_CTL_EN(old_zpos),
 45				   0);
 46
 47		regmap_update_bits(mixer->engine.regs,
 48				   SUN8I_MIXER_BLEND_ROUTE(bld_base),
 49				   SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(old_zpos),
 50				   0);
 51	}
 52
 53	if (enable) {
 54		val = SUN8I_MIXER_BLEND_PIPE_CTL_EN(zpos);
 55
 56		regmap_update_bits(mixer->engine.regs,
 57				   SUN8I_MIXER_BLEND_PIPE_CTL(bld_base),
 58				   val, val);
 59
 60		val = channel << SUN8I_MIXER_BLEND_ROUTE_PIPE_SHIFT(zpos);
 61
 62		regmap_update_bits(mixer->engine.regs,
 63				   SUN8I_MIXER_BLEND_ROUTE(bld_base),
 64				   SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(zpos),
 65				   val);
 66	}
 67}
 68
 69static void sun8i_vi_layer_update_alpha(struct sun8i_mixer *mixer, int channel,
 70					int overlay, struct drm_plane *plane)
 71{
 72	u32 mask, val, ch_base;
 73
 74	ch_base = sun8i_channel_base(mixer, channel);
 75
 76	if (mixer->cfg->is_de3) {
 77		mask = SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MASK |
 78		       SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_MASK;
 79		val = SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA
 80			(plane->state->alpha >> 8);
 81
 82		val |= (plane->state->alpha == DRM_BLEND_ALPHA_OPAQUE) ?
 83			SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_PIXEL :
 84			SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_COMBINED;
 85
 86		regmap_update_bits(mixer->engine.regs,
 87				   SUN8I_MIXER_CHAN_VI_LAYER_ATTR(ch_base,
 88								  overlay),
 89				   mask, val);
 90	} else if (mixer->cfg->vi_num == 1) {
 91		regmap_update_bits(mixer->engine.regs,
 92				   SUN8I_MIXER_FCC_GLOBAL_ALPHA_REG,
 93				   SUN8I_MIXER_FCC_GLOBAL_ALPHA_MASK,
 94				   SUN8I_MIXER_FCC_GLOBAL_ALPHA
 95					(plane->state->alpha >> 8));
 96	}
 97}
 98
 99static int sun8i_vi_layer_update_coord(struct sun8i_mixer *mixer, int channel,
100				       int overlay, struct drm_plane *plane,
101				       unsigned int zpos)
102{
103	struct drm_plane_state *state = plane->state;
104	const struct drm_format_info *format = state->fb->format;
105	u32 src_w, src_h, dst_w, dst_h;
106	u32 bld_base, ch_base;
107	u32 outsize, insize;
108	u32 hphase, vphase;
109	u32 hn = 0, hm = 0;
110	u32 vn = 0, vm = 0;
111	bool subsampled;
112
113	DRM_DEBUG_DRIVER("Updating VI channel %d overlay %d\n",
114			 channel, overlay);
115
116	bld_base = sun8i_blender_base(mixer);
117	ch_base = sun8i_channel_base(mixer, channel);
118
119	src_w = drm_rect_width(&state->src) >> 16;
120	src_h = drm_rect_height(&state->src) >> 16;
121	dst_w = drm_rect_width(&state->dst);
122	dst_h = drm_rect_height(&state->dst);
123
124	hphase = state->src.x1 & 0xffff;
125	vphase = state->src.y1 & 0xffff;
126
127	/* make coordinates dividable by subsampling factor */
128	if (format->hsub > 1) {
129		int mask, remainder;
130
131		mask = format->hsub - 1;
132		remainder = (state->src.x1 >> 16) & mask;
133		src_w = (src_w + remainder) & ~mask;
134		hphase += remainder << 16;
135	}
136
137	if (format->vsub > 1) {
138		int mask, remainder;
139
140		mask = format->vsub - 1;
141		remainder = (state->src.y1 >> 16) & mask;
142		src_h = (src_h + remainder) & ~mask;
143		vphase += remainder << 16;
144	}
145
146	insize = SUN8I_MIXER_SIZE(src_w, src_h);
147	outsize = SUN8I_MIXER_SIZE(dst_w, dst_h);
148
149	/* Set height and width */
150	DRM_DEBUG_DRIVER("Layer source offset X: %d Y: %d\n",
151			 (state->src.x1 >> 16) & ~(format->hsub - 1),
152			 (state->src.y1 >> 16) & ~(format->vsub - 1));
153	DRM_DEBUG_DRIVER("Layer source size W: %d H: %d\n", src_w, src_h);
154	regmap_write(mixer->engine.regs,
155		     SUN8I_MIXER_CHAN_VI_LAYER_SIZE(ch_base, overlay),
156		     insize);
157	regmap_write(mixer->engine.regs,
158		     SUN8I_MIXER_CHAN_VI_OVL_SIZE(ch_base),
159		     insize);
160
161	/*
162	 * Scaler must be enabled for subsampled formats, so it scales
163	 * chroma to same size as luma.
164	 */
165	subsampled = format->hsub > 1 || format->vsub > 1;
166
167	if (insize != outsize || subsampled || hphase || vphase) {
168		unsigned int scanline, required;
169		struct drm_display_mode *mode;
170		u32 hscale, vscale, fps;
171		u64 ability;
172
173		DRM_DEBUG_DRIVER("HW scaling is enabled\n");
174
175		mode = &plane->state->crtc->state->mode;
176		fps = (mode->clock * 1000) / (mode->vtotal * mode->htotal);
177		ability = clk_get_rate(mixer->mod_clk);
178		/* BSP algorithm assumes 80% efficiency of VI scaler unit */
179		ability *= 80;
180		do_div(ability, mode->vdisplay * fps * max(src_w, dst_w));
181
182		required = src_h * 100 / dst_h;
183
184		if (ability < required) {
185			DRM_DEBUG_DRIVER("Using vertical coarse scaling\n");
186			vm = src_h;
187			vn = (u32)ability * dst_h / 100;
188			src_h = vn;
189		}
190
191		/* it seems that every RGB scaler has buffer for 2048 pixels */
192		scanline = subsampled ? mixer->cfg->scanline_yuv : 2048;
193
194		if (src_w > scanline) {
195			DRM_DEBUG_DRIVER("Using horizontal coarse scaling\n");
196			hm = src_w;
197			hn = scanline;
198			src_w = hn;
199		}
200
201		hscale = (src_w << 16) / dst_w;
202		vscale = (src_h << 16) / dst_h;
203
204		sun8i_vi_scaler_setup(mixer, channel, src_w, src_h, dst_w,
205				      dst_h, hscale, vscale, hphase, vphase,
206				      format);
207		sun8i_vi_scaler_enable(mixer, channel, true);
208	} else {
209		DRM_DEBUG_DRIVER("HW scaling is not needed\n");
210		sun8i_vi_scaler_enable(mixer, channel, false);
211	}
212
213	regmap_write(mixer->engine.regs,
214		     SUN8I_MIXER_CHAN_VI_HDS_Y(ch_base),
215		     SUN8I_MIXER_CHAN_VI_DS_N(hn) |
216		     SUN8I_MIXER_CHAN_VI_DS_M(hm));
217	regmap_write(mixer->engine.regs,
218		     SUN8I_MIXER_CHAN_VI_HDS_UV(ch_base),
219		     SUN8I_MIXER_CHAN_VI_DS_N(hn) |
220		     SUN8I_MIXER_CHAN_VI_DS_M(hm));
221	regmap_write(mixer->engine.regs,
222		     SUN8I_MIXER_CHAN_VI_VDS_Y(ch_base),
223		     SUN8I_MIXER_CHAN_VI_DS_N(vn) |
224		     SUN8I_MIXER_CHAN_VI_DS_M(vm));
225	regmap_write(mixer->engine.regs,
226		     SUN8I_MIXER_CHAN_VI_VDS_UV(ch_base),
227		     SUN8I_MIXER_CHAN_VI_DS_N(vn) |
228		     SUN8I_MIXER_CHAN_VI_DS_M(vm));
229
230	/* Set base coordinates */
231	DRM_DEBUG_DRIVER("Layer destination coordinates X: %d Y: %d\n",
232			 state->dst.x1, state->dst.y1);
233	DRM_DEBUG_DRIVER("Layer destination size W: %d H: %d\n", dst_w, dst_h);
234	regmap_write(mixer->engine.regs,
235		     SUN8I_MIXER_BLEND_ATTR_COORD(bld_base, zpos),
236		     SUN8I_MIXER_COORD(state->dst.x1, state->dst.y1));
237	regmap_write(mixer->engine.regs,
238		     SUN8I_MIXER_BLEND_ATTR_INSIZE(bld_base, zpos),
239		     outsize);
240
241	return 0;
242}
243
244static u32 sun8i_vi_layer_get_csc_mode(const struct drm_format_info *format)
245{
246	if (!format->is_yuv)
247		return SUN8I_CSC_MODE_OFF;
248
249	switch (format->format) {
250	case DRM_FORMAT_YVU411:
251	case DRM_FORMAT_YVU420:
252	case DRM_FORMAT_YVU422:
253	case DRM_FORMAT_YVU444:
254		return SUN8I_CSC_MODE_YVU2RGB;
255	default:
256		return SUN8I_CSC_MODE_YUV2RGB;
257	}
258}
259
260static int sun8i_vi_layer_update_formats(struct sun8i_mixer *mixer, int channel,
261					 int overlay, struct drm_plane *plane)
262{
263	struct drm_plane_state *state = plane->state;
264	u32 val, ch_base, csc_mode, hw_fmt;
265	const struct drm_format_info *fmt;
266	int ret;
267
268	ch_base = sun8i_channel_base(mixer, channel);
269
270	fmt = state->fb->format;
271	ret = sun8i_mixer_drm_format_to_hw(fmt->format, &hw_fmt);
272	if (ret) {
273		DRM_DEBUG_DRIVER("Invalid format\n");
274		return ret;
275	}
276
277	val = hw_fmt << SUN8I_MIXER_CHAN_VI_LAYER_ATTR_FBFMT_OFFSET;
278	regmap_update_bits(mixer->engine.regs,
279			   SUN8I_MIXER_CHAN_VI_LAYER_ATTR(ch_base, overlay),
280			   SUN8I_MIXER_CHAN_VI_LAYER_ATTR_FBFMT_MASK, val);
281
282	csc_mode = sun8i_vi_layer_get_csc_mode(fmt);
283	if (csc_mode != SUN8I_CSC_MODE_OFF) {
284		sun8i_csc_set_ccsc_coefficients(mixer, channel, csc_mode,
285						state->color_encoding,
286						state->color_range);
287		sun8i_csc_enable_ccsc(mixer, channel, true);
288	} else {
289		sun8i_csc_enable_ccsc(mixer, channel, false);
290	}
291
292	if (!fmt->is_yuv)
293		val = SUN8I_MIXER_CHAN_VI_LAYER_ATTR_RGB_MODE;
294	else
295		val = 0;
296
297	regmap_update_bits(mixer->engine.regs,
298			   SUN8I_MIXER_CHAN_VI_LAYER_ATTR(ch_base, overlay),
299			   SUN8I_MIXER_CHAN_VI_LAYER_ATTR_RGB_MODE, val);
300
301	return 0;
302}
303
304static int sun8i_vi_layer_update_buffer(struct sun8i_mixer *mixer, int channel,
305					int overlay, struct drm_plane *plane)
306{
307	struct drm_plane_state *state = plane->state;
308	struct drm_framebuffer *fb = state->fb;
309	const struct drm_format_info *format = fb->format;
310	struct drm_gem_cma_object *gem;
311	u32 dx, dy, src_x, src_y;
312	dma_addr_t paddr;
313	u32 ch_base;
314	int i;
315
316	ch_base = sun8i_channel_base(mixer, channel);
317
318	/* Adjust x and y to be dividable by subsampling factor */
319	src_x = (state->src.x1 >> 16) & ~(format->hsub - 1);
320	src_y = (state->src.y1 >> 16) & ~(format->vsub - 1);
321
322	for (i = 0; i < format->num_planes; i++) {
323		/* Get the physical address of the buffer in memory */
324		gem = drm_fb_cma_get_gem_obj(fb, i);
325
326		DRM_DEBUG_DRIVER("Using GEM @ %pad\n", &gem->paddr);
327
328		/* Compute the start of the displayed memory */
329		paddr = gem->paddr + fb->offsets[i];
330
331		dx = src_x;
332		dy = src_y;
333
334		if (i > 0) {
335			dx /= format->hsub;
336			dy /= format->vsub;
337		}
338
339		/* Fixup framebuffer address for src coordinates */
340		paddr += dx * format->cpp[i];
341		paddr += dy * fb->pitches[i];
342
343		/* Set the line width */
344		DRM_DEBUG_DRIVER("Layer %d. line width: %d bytes\n",
345				 i + 1, fb->pitches[i]);
346		regmap_write(mixer->engine.regs,
347			     SUN8I_MIXER_CHAN_VI_LAYER_PITCH(ch_base,
348							     overlay, i),
349			     fb->pitches[i]);
350
351		DRM_DEBUG_DRIVER("Setting %d. buffer address to %pad\n",
352				 i + 1, &paddr);
353
354		regmap_write(mixer->engine.regs,
355			     SUN8I_MIXER_CHAN_VI_LAYER_TOP_LADDR(ch_base,
356								 overlay, i),
357			     lower_32_bits(paddr));
358	}
359
360	return 0;
361}
362
363static int sun8i_vi_layer_atomic_check(struct drm_plane *plane,
364				       struct drm_atomic_state *state)
365{
366	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
367										 plane);
368	struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
369	struct drm_crtc *crtc = new_plane_state->crtc;
370	struct drm_crtc_state *crtc_state;
371	int min_scale, max_scale;
372
373	if (!crtc)
374		return 0;
375
376	crtc_state = drm_atomic_get_existing_crtc_state(state,
377							crtc);
378	if (WARN_ON(!crtc_state))
379		return -EINVAL;
380
381	min_scale = DRM_PLANE_HELPER_NO_SCALING;
382	max_scale = DRM_PLANE_HELPER_NO_SCALING;
383
384	if (layer->mixer->cfg->scaler_mask & BIT(layer->channel)) {
385		min_scale = SUN8I_VI_SCALER_SCALE_MIN;
386		max_scale = SUN8I_VI_SCALER_SCALE_MAX;
387	}
388
389	return drm_atomic_helper_check_plane_state(new_plane_state,
390						   crtc_state,
391						   min_scale, max_scale,
392						   true, true);
393}
394
395static void sun8i_vi_layer_atomic_disable(struct drm_plane *plane,
396					  struct drm_atomic_state *state)
397{
398	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
399									   plane);
400	struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
401	unsigned int old_zpos = old_state->normalized_zpos;
402	struct sun8i_mixer *mixer = layer->mixer;
403
404	sun8i_vi_layer_enable(mixer, layer->channel, layer->overlay, false, 0,
405			      old_zpos);
406}
407
408static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
409					 struct drm_atomic_state *state)
410{
411	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
412									   plane);
413	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
414									   plane);
415	struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
416	unsigned int zpos = new_state->normalized_zpos;
417	unsigned int old_zpos = old_state->normalized_zpos;
418	struct sun8i_mixer *mixer = layer->mixer;
419
420	if (!new_state->visible) {
421		sun8i_vi_layer_enable(mixer, layer->channel,
422				      layer->overlay, false, 0, old_zpos);
423		return;
424	}
425
426	sun8i_vi_layer_update_coord(mixer, layer->channel,
427				    layer->overlay, plane, zpos);
428	sun8i_vi_layer_update_alpha(mixer, layer->channel,
429				    layer->overlay, plane);
430	sun8i_vi_layer_update_formats(mixer, layer->channel,
431				      layer->overlay, plane);
432	sun8i_vi_layer_update_buffer(mixer, layer->channel,
433				     layer->overlay, plane);
434	sun8i_vi_layer_enable(mixer, layer->channel, layer->overlay,
435			      true, zpos, old_zpos);
436}
437
438static const struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = {
439	.prepare_fb	= drm_gem_plane_helper_prepare_fb,
440	.atomic_check	= sun8i_vi_layer_atomic_check,
441	.atomic_disable	= sun8i_vi_layer_atomic_disable,
442	.atomic_update	= sun8i_vi_layer_atomic_update,
443};
444
445static const struct drm_plane_funcs sun8i_vi_layer_funcs = {
446	.atomic_destroy_state	= drm_atomic_helper_plane_destroy_state,
447	.atomic_duplicate_state	= drm_atomic_helper_plane_duplicate_state,
448	.destroy		= drm_plane_cleanup,
449	.disable_plane		= drm_atomic_helper_disable_plane,
450	.reset			= drm_atomic_helper_plane_reset,
451	.update_plane		= drm_atomic_helper_update_plane,
452};
453
454/*
455 * While DE2 VI layer supports same RGB formats as UI layer, alpha
456 * channel is ignored. This structure lists all unique variants
457 * where alpha channel is replaced with "don't care" (X) channel.
458 */
459static const u32 sun8i_vi_layer_formats[] = {
460	DRM_FORMAT_BGR565,
461	DRM_FORMAT_BGR888,
462	DRM_FORMAT_BGRX4444,
463	DRM_FORMAT_BGRX5551,
464	DRM_FORMAT_BGRX8888,
465	DRM_FORMAT_RGB565,
466	DRM_FORMAT_RGB888,
467	DRM_FORMAT_RGBX4444,
468	DRM_FORMAT_RGBX5551,
469	DRM_FORMAT_RGBX8888,
470	DRM_FORMAT_XBGR1555,
471	DRM_FORMAT_XBGR4444,
472	DRM_FORMAT_XBGR8888,
473	DRM_FORMAT_XRGB1555,
474	DRM_FORMAT_XRGB4444,
475	DRM_FORMAT_XRGB8888,
476
477	DRM_FORMAT_NV16,
478	DRM_FORMAT_NV12,
479	DRM_FORMAT_NV21,
480	DRM_FORMAT_NV61,
481	DRM_FORMAT_UYVY,
482	DRM_FORMAT_VYUY,
483	DRM_FORMAT_YUYV,
484	DRM_FORMAT_YVYU,
485	DRM_FORMAT_YUV411,
486	DRM_FORMAT_YUV420,
487	DRM_FORMAT_YUV422,
488	DRM_FORMAT_YVU411,
489	DRM_FORMAT_YVU420,
490	DRM_FORMAT_YVU422,
491};
492
493static const u32 sun8i_vi_layer_de3_formats[] = {
494	DRM_FORMAT_ABGR1555,
495	DRM_FORMAT_ABGR2101010,
496	DRM_FORMAT_ABGR4444,
497	DRM_FORMAT_ABGR8888,
498	DRM_FORMAT_ARGB1555,
499	DRM_FORMAT_ARGB2101010,
500	DRM_FORMAT_ARGB4444,
501	DRM_FORMAT_ARGB8888,
502	DRM_FORMAT_BGR565,
503	DRM_FORMAT_BGR888,
504	DRM_FORMAT_BGRA1010102,
505	DRM_FORMAT_BGRA5551,
506	DRM_FORMAT_BGRA4444,
507	DRM_FORMAT_BGRA8888,
508	DRM_FORMAT_BGRX8888,
509	DRM_FORMAT_RGB565,
510	DRM_FORMAT_RGB888,
511	DRM_FORMAT_RGBA1010102,
512	DRM_FORMAT_RGBA4444,
513	DRM_FORMAT_RGBA5551,
514	DRM_FORMAT_RGBA8888,
515	DRM_FORMAT_RGBX8888,
516	DRM_FORMAT_XBGR8888,
517	DRM_FORMAT_XRGB8888,
518
519	DRM_FORMAT_NV16,
520	DRM_FORMAT_NV12,
521	DRM_FORMAT_NV21,
522	DRM_FORMAT_NV61,
523	DRM_FORMAT_P010,
524	DRM_FORMAT_P210,
525	DRM_FORMAT_UYVY,
526	DRM_FORMAT_VYUY,
527	DRM_FORMAT_YUYV,
528	DRM_FORMAT_YVYU,
529	DRM_FORMAT_YUV411,
530	DRM_FORMAT_YUV420,
531	DRM_FORMAT_YUV422,
532	DRM_FORMAT_YVU411,
533	DRM_FORMAT_YVU420,
534	DRM_FORMAT_YVU422,
535};
536
537static const uint64_t sun8i_layer_modifiers[] = {
538	DRM_FORMAT_MOD_LINEAR,
539	DRM_FORMAT_MOD_INVALID
540};
541
542struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm,
543					       struct sun8i_mixer *mixer,
544					       int index)
545{
546	u32 supported_encodings, supported_ranges;
547	unsigned int plane_cnt, format_count;
548	struct sun8i_vi_layer *layer;
549	const u32 *formats;
550	int ret;
551
552	layer = devm_kzalloc(drm->dev, sizeof(*layer), GFP_KERNEL);
553	if (!layer)
554		return ERR_PTR(-ENOMEM);
555
556	if (mixer->cfg->is_de3) {
557		formats = sun8i_vi_layer_de3_formats;
558		format_count = ARRAY_SIZE(sun8i_vi_layer_de3_formats);
559	} else {
560		formats = sun8i_vi_layer_formats;
561		format_count = ARRAY_SIZE(sun8i_vi_layer_formats);
562	}
563
564	/* possible crtcs are set later */
565	ret = drm_universal_plane_init(drm, &layer->plane, 0,
566				       &sun8i_vi_layer_funcs,
567				       formats, format_count,
568				       sun8i_layer_modifiers,
569				       DRM_PLANE_TYPE_OVERLAY, NULL);
570	if (ret) {
571		dev_err(drm->dev, "Couldn't initialize layer\n");
572		return ERR_PTR(ret);
573	}
574
575	plane_cnt = mixer->cfg->ui_num + mixer->cfg->vi_num;
576
577	if (mixer->cfg->vi_num == 1 || mixer->cfg->is_de3) {
578		ret = drm_plane_create_alpha_property(&layer->plane);
579		if (ret) {
580			dev_err(drm->dev, "Couldn't add alpha property\n");
581			return ERR_PTR(ret);
582		}
583	}
584
585	ret = drm_plane_create_zpos_property(&layer->plane, index,
586					     0, plane_cnt - 1);
587	if (ret) {
588		dev_err(drm->dev, "Couldn't add zpos property\n");
589		return ERR_PTR(ret);
590	}
591
592	supported_encodings = BIT(DRM_COLOR_YCBCR_BT601) |
593			      BIT(DRM_COLOR_YCBCR_BT709);
594	if (mixer->cfg->is_de3)
595		supported_encodings |= BIT(DRM_COLOR_YCBCR_BT2020);
596
597	supported_ranges = BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
598			   BIT(DRM_COLOR_YCBCR_FULL_RANGE);
599
600	ret = drm_plane_create_color_properties(&layer->plane,
601						supported_encodings,
602						supported_ranges,
603						DRM_COLOR_YCBCR_BT709,
604						DRM_COLOR_YCBCR_LIMITED_RANGE);
605	if (ret) {
606		dev_err(drm->dev, "Couldn't add encoding and range properties!\n");
607		return ERR_PTR(ret);
608	}
609
610	drm_plane_helper_add(&layer->plane, &sun8i_vi_layer_helper_funcs);
611	layer->mixer = mixer;
612	layer->channel = index;
613	layer->overlay = 0;
614
615	return layer;
616}