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1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2018 BayLibre, SAS
4 * Author: Neil Armstrong <narmstrong@baylibre.com>
5 * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
6 */
7
8#include <linux/bitfield.h>
9
10#include <drm/drm_atomic.h>
11#include <drm/drm_atomic_helper.h>
12#include <drm/drm_device.h>
13#include <drm/drm_fourcc.h>
14#include <drm/drm_plane_helper.h>
15#include <drm/drm_gem_cma_helper.h>
16#include <drm/drm_fb_cma_helper.h>
17#include <drm/drm_gem_framebuffer_helper.h>
18
19#include "meson_overlay.h"
20#include "meson_registers.h"
21#include "meson_viu.h"
22#include "meson_vpp.h"
23
24/* VD1_IF0_GEN_REG */
25#define VD_URGENT_CHROMA BIT(28)
26#define VD_URGENT_LUMA BIT(27)
27#define VD_HOLD_LINES(lines) FIELD_PREP(GENMASK(24, 19), lines)
28#define VD_DEMUX_MODE_RGB BIT(16)
29#define VD_BYTES_PER_PIXEL(val) FIELD_PREP(GENMASK(15, 14), val)
30#define VD_CHRO_RPT_LASTL_CTRL BIT(6)
31#define VD_LITTLE_ENDIAN BIT(4)
32#define VD_SEPARATE_EN BIT(1)
33#define VD_ENABLE BIT(0)
34
35/* VD1_IF0_CANVAS0 */
36#define CANVAS_ADDR2(addr) FIELD_PREP(GENMASK(23, 16), addr)
37#define CANVAS_ADDR1(addr) FIELD_PREP(GENMASK(15, 8), addr)
38#define CANVAS_ADDR0(addr) FIELD_PREP(GENMASK(7, 0), addr)
39
40/* VD1_IF0_LUMA_X0 VD1_IF0_CHROMA_X0 */
41#define VD_X_START(value) FIELD_PREP(GENMASK(14, 0), value)
42#define VD_X_END(value) FIELD_PREP(GENMASK(30, 16), value)
43
44/* VD1_IF0_LUMA_Y0 VD1_IF0_CHROMA_Y0 */
45#define VD_Y_START(value) FIELD_PREP(GENMASK(12, 0), value)
46#define VD_Y_END(value) FIELD_PREP(GENMASK(28, 16), value)
47
48/* VD1_IF0_GEN_REG2 */
49#define VD_COLOR_MAP(value) FIELD_PREP(GENMASK(1, 0), value)
50
51/* VIU_VD1_FMT_CTRL */
52#define VD_HORZ_Y_C_RATIO(value) FIELD_PREP(GENMASK(22, 21), value)
53#define VD_HORZ_FMT_EN BIT(20)
54#define VD_VERT_RPT_LINE0 BIT(16)
55#define VD_VERT_INITIAL_PHASE(value) FIELD_PREP(GENMASK(11, 8), value)
56#define VD_VERT_PHASE_STEP(value) FIELD_PREP(GENMASK(7, 1), value)
57#define VD_VERT_FMT_EN BIT(0)
58
59/* VPP_POSTBLEND_VD1_H_START_END */
60#define VD_H_END(value) FIELD_PREP(GENMASK(11, 0), value)
61#define VD_H_START(value) FIELD_PREP(GENMASK(27, 16), value)
62
63/* VPP_POSTBLEND_VD1_V_START_END */
64#define VD_V_END(value) FIELD_PREP(GENMASK(11, 0), value)
65#define VD_V_START(value) FIELD_PREP(GENMASK(27, 16), value)
66
67/* VPP_BLEND_VD2_V_START_END */
68#define VD2_V_END(value) FIELD_PREP(GENMASK(11, 0), value)
69#define VD2_V_START(value) FIELD_PREP(GENMASK(27, 16), value)
70
71/* VIU_VD1_FMT_W */
72#define VD_V_WIDTH(value) FIELD_PREP(GENMASK(11, 0), value)
73#define VD_H_WIDTH(value) FIELD_PREP(GENMASK(27, 16), value)
74
75/* VPP_HSC_REGION12_STARTP VPP_HSC_REGION34_STARTP */
76#define VD_REGION24_START(value) FIELD_PREP(GENMASK(11, 0), value)
77#define VD_REGION13_END(value) FIELD_PREP(GENMASK(27, 16), value)
78
79struct meson_overlay {
80 struct drm_plane base;
81 struct meson_drm *priv;
82};
83#define to_meson_overlay(x) container_of(x, struct meson_overlay, base)
84
85#define FRAC_16_16(mult, div) (((mult) << 16) / (div))
86
87static int meson_overlay_atomic_check(struct drm_plane *plane,
88 struct drm_plane_state *state)
89{
90 struct drm_crtc_state *crtc_state;
91
92 if (!state->crtc)
93 return 0;
94
95 crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
96 if (IS_ERR(crtc_state))
97 return PTR_ERR(crtc_state);
98
99 return drm_atomic_helper_check_plane_state(state, crtc_state,
100 FRAC_16_16(1, 5),
101 FRAC_16_16(5, 1),
102 true, true);
103}
104
105/* Takes a fixed 16.16 number and converts it to integer. */
106static inline int64_t fixed16_to_int(int64_t value)
107{
108 return value >> 16;
109}
110
111static const uint8_t skip_tab[6] = {
112 0x24, 0x04, 0x68, 0x48, 0x28, 0x08,
113};
114
115static void meson_overlay_get_vertical_phase(unsigned int ratio_y, int *phase,
116 int *repeat, bool interlace)
117{
118 int offset_in = 0;
119 int offset_out = 0;
120 int repeat_skip = 0;
121
122 if (!interlace && ratio_y > (1 << 18))
123 offset_out = (1 * ratio_y) >> 10;
124
125 while ((offset_in + (4 << 8)) <= offset_out) {
126 repeat_skip++;
127 offset_in += 4 << 8;
128 }
129
130 *phase = (offset_out - offset_in) >> 2;
131
132 if (*phase > 0x100)
133 repeat_skip++;
134
135 *phase = *phase & 0xff;
136
137 if (repeat_skip > 5)
138 repeat_skip = 5;
139
140 *repeat = skip_tab[repeat_skip];
141}
142
143static void meson_overlay_setup_scaler_params(struct meson_drm *priv,
144 struct drm_plane *plane,
145 bool interlace_mode)
146{
147 struct drm_crtc_state *crtc_state = priv->crtc->state;
148 int video_top, video_left, video_width, video_height;
149 struct drm_plane_state *state = plane->state;
150 unsigned int vd_start_lines, vd_end_lines;
151 unsigned int hd_start_lines, hd_end_lines;
152 unsigned int crtc_height, crtc_width;
153 unsigned int vsc_startp, vsc_endp;
154 unsigned int hsc_startp, hsc_endp;
155 unsigned int crop_top, crop_left;
156 int vphase, vphase_repeat_skip;
157 unsigned int ratio_x, ratio_y;
158 int temp_height, temp_width;
159 unsigned int w_in, h_in;
160 int temp, start, end;
161
162 if (!crtc_state) {
163 DRM_ERROR("Invalid crtc_state\n");
164 return;
165 }
166
167 crtc_height = crtc_state->mode.vdisplay;
168 crtc_width = crtc_state->mode.hdisplay;
169
170 w_in = fixed16_to_int(state->src_w);
171 h_in = fixed16_to_int(state->src_h);
172 crop_top = fixed16_to_int(state->src_x);
173 crop_left = fixed16_to_int(state->src_x);
174
175 video_top = state->crtc_y;
176 video_left = state->crtc_x;
177 video_width = state->crtc_w;
178 video_height = state->crtc_h;
179
180 DRM_DEBUG("crtc_width %d crtc_height %d interlace %d\n",
181 crtc_width, crtc_height, interlace_mode);
182 DRM_DEBUG("w_in %d h_in %d crop_top %d crop_left %d\n",
183 w_in, h_in, crop_top, crop_left);
184 DRM_DEBUG("video top %d left %d width %d height %d\n",
185 video_top, video_left, video_width, video_height);
186
187 ratio_x = (w_in << 18) / video_width;
188 ratio_y = (h_in << 18) / video_height;
189
190 if (ratio_x * video_width < (w_in << 18))
191 ratio_x++;
192
193 DRM_DEBUG("ratio x 0x%x y 0x%x\n", ratio_x, ratio_y);
194
195 meson_overlay_get_vertical_phase(ratio_y, &vphase, &vphase_repeat_skip,
196 interlace_mode);
197
198 DRM_DEBUG("vphase 0x%x skip %d\n", vphase, vphase_repeat_skip);
199
200 /* Vertical */
201
202 start = video_top + video_height / 2 - ((h_in << 17) / ratio_y);
203 end = (h_in << 18) / ratio_y + start - 1;
204
205 if (video_top < 0 && start < 0)
206 vd_start_lines = (-(start) * ratio_y) >> 18;
207 else if (start < video_top)
208 vd_start_lines = ((video_top - start) * ratio_y) >> 18;
209 else
210 vd_start_lines = 0;
211
212 if (video_top < 0)
213 temp_height = min_t(unsigned int,
214 video_top + video_height - 1,
215 crtc_height - 1);
216 else
217 temp_height = min_t(unsigned int,
218 video_top + video_height - 1,
219 crtc_height - 1) - video_top + 1;
220
221 temp = vd_start_lines + (temp_height * ratio_y >> 18);
222 vd_end_lines = (temp <= (h_in - 1)) ? temp : (h_in - 1);
223
224 vd_start_lines += crop_left;
225 vd_end_lines += crop_left;
226
227 /*
228 * TOFIX: Input frames are handled and scaled like progressive frames,
229 * proper handling of interlaced field input frames need to be figured
230 * out using the proper framebuffer flags set by userspace.
231 */
232 if (interlace_mode) {
233 start >>= 1;
234 end >>= 1;
235 }
236
237 vsc_startp = max_t(int, start,
238 max_t(int, 0, video_top));
239 vsc_endp = min_t(int, end,
240 min_t(int, crtc_height - 1,
241 video_top + video_height - 1));
242
243 DRM_DEBUG("vsc startp %d endp %d start_lines %d end_lines %d\n",
244 vsc_startp, vsc_endp, vd_start_lines, vd_end_lines);
245
246 /* Horizontal */
247
248 start = video_left + video_width / 2 - ((w_in << 17) / ratio_x);
249 end = (w_in << 18) / ratio_x + start - 1;
250
251 if (video_left < 0 && start < 0)
252 hd_start_lines = (-(start) * ratio_x) >> 18;
253 else if (start < video_left)
254 hd_start_lines = ((video_left - start) * ratio_x) >> 18;
255 else
256 hd_start_lines = 0;
257
258 if (video_left < 0)
259 temp_width = min_t(unsigned int,
260 video_left + video_width - 1,
261 crtc_width - 1);
262 else
263 temp_width = min_t(unsigned int,
264 video_left + video_width - 1,
265 crtc_width - 1) - video_left + 1;
266
267 temp = hd_start_lines + (temp_width * ratio_x >> 18);
268 hd_end_lines = (temp <= (w_in - 1)) ? temp : (w_in - 1);
269
270 priv->viu.vpp_line_in_length = hd_end_lines - hd_start_lines + 1;
271 hsc_startp = max_t(int, start, max_t(int, 0, video_left));
272 hsc_endp = min_t(int, end, min_t(int, crtc_width - 1,
273 video_left + video_width - 1));
274
275 hd_start_lines += crop_top;
276 hd_end_lines += crop_top;
277
278 DRM_DEBUG("hsc startp %d endp %d start_lines %d end_lines %d\n",
279 hsc_startp, hsc_endp, hd_start_lines, hd_end_lines);
280
281 priv->viu.vpp_vsc_start_phase_step = ratio_y << 6;
282
283 priv->viu.vpp_vsc_ini_phase = vphase << 8;
284 priv->viu.vpp_vsc_phase_ctrl = (1 << 13) | (4 << 8) |
285 vphase_repeat_skip;
286
287 priv->viu.vd1_if0_luma_x0 = VD_X_START(hd_start_lines) |
288 VD_X_END(hd_end_lines);
289 priv->viu.vd1_if0_chroma_x0 = VD_X_START(hd_start_lines >> 1) |
290 VD_X_END(hd_end_lines >> 1);
291
292 priv->viu.viu_vd1_fmt_w =
293 VD_H_WIDTH(hd_end_lines - hd_start_lines + 1) |
294 VD_V_WIDTH(hd_end_lines/2 - hd_start_lines/2 + 1);
295
296 priv->viu.vd1_if0_luma_y0 = VD_Y_START(vd_start_lines) |
297 VD_Y_END(vd_end_lines);
298
299 priv->viu.vd1_if0_chroma_y0 = VD_Y_START(vd_start_lines >> 1) |
300 VD_Y_END(vd_end_lines >> 1);
301
302 priv->viu.vpp_pic_in_height = h_in;
303
304 priv->viu.vpp_postblend_vd1_h_start_end = VD_H_START(hsc_startp) |
305 VD_H_END(hsc_endp);
306 priv->viu.vpp_blend_vd2_h_start_end = VD_H_START(hd_start_lines) |
307 VD_H_END(hd_end_lines);
308 priv->viu.vpp_hsc_region12_startp = VD_REGION13_END(0) |
309 VD_REGION24_START(hsc_startp);
310 priv->viu.vpp_hsc_region34_startp =
311 VD_REGION13_END(hsc_startp) |
312 VD_REGION24_START(hsc_endp - hsc_startp);
313 priv->viu.vpp_hsc_region4_endp = hsc_endp - hsc_startp;
314 priv->viu.vpp_hsc_start_phase_step = ratio_x << 6;
315 priv->viu.vpp_hsc_region1_phase_slope = 0;
316 priv->viu.vpp_hsc_region3_phase_slope = 0;
317 priv->viu.vpp_hsc_phase_ctrl = (1 << 21) | (4 << 16);
318
319 priv->viu.vpp_line_in_length = hd_end_lines - hd_start_lines + 1;
320 priv->viu.vpp_preblend_h_size = hd_end_lines - hd_start_lines + 1;
321
322 priv->viu.vpp_postblend_vd1_v_start_end = VD_V_START(vsc_startp) |
323 VD_V_END(vsc_endp);
324 priv->viu.vpp_blend_vd2_v_start_end =
325 VD2_V_START((vd_end_lines + 1) >> 1) |
326 VD2_V_END(vd_end_lines);
327
328 priv->viu.vpp_vsc_region12_startp = 0;
329 priv->viu.vpp_vsc_region34_startp =
330 VD_REGION13_END(vsc_endp - vsc_startp) |
331 VD_REGION24_START(vsc_endp - vsc_startp);
332 priv->viu.vpp_vsc_region4_endp = vsc_endp - vsc_startp;
333 priv->viu.vpp_vsc_start_phase_step = ratio_y << 6;
334}
335
336static void meson_overlay_atomic_update(struct drm_plane *plane,
337 struct drm_plane_state *old_state)
338{
339 struct meson_overlay *meson_overlay = to_meson_overlay(plane);
340 struct drm_plane_state *state = plane->state;
341 struct drm_framebuffer *fb = state->fb;
342 struct meson_drm *priv = meson_overlay->priv;
343 struct drm_gem_cma_object *gem;
344 unsigned long flags;
345 bool interlace_mode;
346
347 DRM_DEBUG_DRIVER("\n");
348
349 interlace_mode = state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE;
350
351 spin_lock_irqsave(&priv->drm->event_lock, flags);
352
353 priv->viu.vd1_if0_gen_reg = VD_URGENT_CHROMA |
354 VD_URGENT_LUMA |
355 VD_HOLD_LINES(9) |
356 VD_CHRO_RPT_LASTL_CTRL |
357 VD_ENABLE;
358
359 /* Setup scaler params */
360 meson_overlay_setup_scaler_params(priv, plane, interlace_mode);
361
362 priv->viu.vd1_if0_repeat_loop = 0;
363 priv->viu.vd1_if0_luma0_rpt_pat = interlace_mode ? 8 : 0;
364 priv->viu.vd1_if0_chroma0_rpt_pat = interlace_mode ? 8 : 0;
365 priv->viu.vd1_range_map_y = 0;
366 priv->viu.vd1_range_map_cb = 0;
367 priv->viu.vd1_range_map_cr = 0;
368
369 /* Default values for RGB888/YUV444 */
370 priv->viu.vd1_if0_gen_reg2 = 0;
371 priv->viu.viu_vd1_fmt_ctrl = 0;
372
373 switch (fb->format->format) {
374 /* TOFIX DRM_FORMAT_RGB888 should be supported */
375 case DRM_FORMAT_YUYV:
376 priv->viu.vd1_if0_gen_reg |= VD_BYTES_PER_PIXEL(1);
377 priv->viu.vd1_if0_canvas0 =
378 CANVAS_ADDR2(priv->canvas_id_vd1_0) |
379 CANVAS_ADDR1(priv->canvas_id_vd1_0) |
380 CANVAS_ADDR0(priv->canvas_id_vd1_0);
381 priv->viu.viu_vd1_fmt_ctrl = VD_HORZ_Y_C_RATIO(1) | /* /2 */
382 VD_HORZ_FMT_EN |
383 VD_VERT_RPT_LINE0 |
384 VD_VERT_INITIAL_PHASE(12) |
385 VD_VERT_PHASE_STEP(16) | /* /2 */
386 VD_VERT_FMT_EN;
387 break;
388 case DRM_FORMAT_NV12:
389 case DRM_FORMAT_NV21:
390 priv->viu.vd1_if0_gen_reg |= VD_SEPARATE_EN;
391 priv->viu.vd1_if0_canvas0 =
392 CANVAS_ADDR2(priv->canvas_id_vd1_1) |
393 CANVAS_ADDR1(priv->canvas_id_vd1_1) |
394 CANVAS_ADDR0(priv->canvas_id_vd1_0);
395 if (fb->format->format == DRM_FORMAT_NV12)
396 priv->viu.vd1_if0_gen_reg2 = VD_COLOR_MAP(1);
397 else
398 priv->viu.vd1_if0_gen_reg2 = VD_COLOR_MAP(2);
399 priv->viu.viu_vd1_fmt_ctrl = VD_HORZ_Y_C_RATIO(1) | /* /2 */
400 VD_HORZ_FMT_EN |
401 VD_VERT_RPT_LINE0 |
402 VD_VERT_INITIAL_PHASE(12) |
403 VD_VERT_PHASE_STEP(8) | /* /4 */
404 VD_VERT_FMT_EN;
405 break;
406 case DRM_FORMAT_YUV444:
407 case DRM_FORMAT_YUV422:
408 case DRM_FORMAT_YUV420:
409 case DRM_FORMAT_YUV411:
410 case DRM_FORMAT_YUV410:
411 priv->viu.vd1_if0_gen_reg |= VD_SEPARATE_EN;
412 priv->viu.vd1_if0_canvas0 =
413 CANVAS_ADDR2(priv->canvas_id_vd1_2) |
414 CANVAS_ADDR1(priv->canvas_id_vd1_1) |
415 CANVAS_ADDR0(priv->canvas_id_vd1_0);
416 switch (fb->format->format) {
417 case DRM_FORMAT_YUV422:
418 priv->viu.viu_vd1_fmt_ctrl =
419 VD_HORZ_Y_C_RATIO(1) | /* /2 */
420 VD_HORZ_FMT_EN |
421 VD_VERT_RPT_LINE0 |
422 VD_VERT_INITIAL_PHASE(12) |
423 VD_VERT_PHASE_STEP(16) | /* /2 */
424 VD_VERT_FMT_EN;
425 break;
426 case DRM_FORMAT_YUV420:
427 priv->viu.viu_vd1_fmt_ctrl =
428 VD_HORZ_Y_C_RATIO(1) | /* /2 */
429 VD_HORZ_FMT_EN |
430 VD_VERT_RPT_LINE0 |
431 VD_VERT_INITIAL_PHASE(12) |
432 VD_VERT_PHASE_STEP(8) | /* /4 */
433 VD_VERT_FMT_EN;
434 break;
435 case DRM_FORMAT_YUV411:
436 priv->viu.viu_vd1_fmt_ctrl =
437 VD_HORZ_Y_C_RATIO(2) | /* /4 */
438 VD_HORZ_FMT_EN |
439 VD_VERT_RPT_LINE0 |
440 VD_VERT_INITIAL_PHASE(12) |
441 VD_VERT_PHASE_STEP(16) | /* /2 */
442 VD_VERT_FMT_EN;
443 break;
444 case DRM_FORMAT_YUV410:
445 priv->viu.viu_vd1_fmt_ctrl =
446 VD_HORZ_Y_C_RATIO(2) | /* /4 */
447 VD_HORZ_FMT_EN |
448 VD_VERT_RPT_LINE0 |
449 VD_VERT_INITIAL_PHASE(12) |
450 VD_VERT_PHASE_STEP(8) | /* /4 */
451 VD_VERT_FMT_EN;
452 break;
453 }
454 break;
455 }
456
457 /* Update Canvas with buffer address */
458 priv->viu.vd1_planes = fb->format->num_planes;
459
460 switch (priv->viu.vd1_planes) {
461 case 3:
462 gem = drm_fb_cma_get_gem_obj(fb, 2);
463 priv->viu.vd1_addr2 = gem->paddr + fb->offsets[2];
464 priv->viu.vd1_stride2 = fb->pitches[2];
465 priv->viu.vd1_height2 =
466 drm_format_info_plane_height(fb->format,
467 fb->height, 2);
468 DRM_DEBUG("plane 2 addr 0x%x stride %d height %d\n",
469 priv->viu.vd1_addr2,
470 priv->viu.vd1_stride2,
471 priv->viu.vd1_height2);
472 /* fallthrough */
473 case 2:
474 gem = drm_fb_cma_get_gem_obj(fb, 1);
475 priv->viu.vd1_addr1 = gem->paddr + fb->offsets[1];
476 priv->viu.vd1_stride1 = fb->pitches[1];
477 priv->viu.vd1_height1 =
478 drm_format_info_plane_height(fb->format,
479 fb->height, 1);
480 DRM_DEBUG("plane 1 addr 0x%x stride %d height %d\n",
481 priv->viu.vd1_addr1,
482 priv->viu.vd1_stride1,
483 priv->viu.vd1_height1);
484 /* fallthrough */
485 case 1:
486 gem = drm_fb_cma_get_gem_obj(fb, 0);
487 priv->viu.vd1_addr0 = gem->paddr + fb->offsets[0];
488 priv->viu.vd1_stride0 = fb->pitches[0];
489 priv->viu.vd1_height0 =
490 drm_format_info_plane_height(fb->format,
491 fb->height, 0);
492 DRM_DEBUG("plane 0 addr 0x%x stride %d height %d\n",
493 priv->viu.vd1_addr0,
494 priv->viu.vd1_stride0,
495 priv->viu.vd1_height0);
496 }
497
498 priv->viu.vd1_enabled = true;
499
500 spin_unlock_irqrestore(&priv->drm->event_lock, flags);
501
502 DRM_DEBUG_DRIVER("\n");
503}
504
505static void meson_overlay_atomic_disable(struct drm_plane *plane,
506 struct drm_plane_state *old_state)
507{
508 struct meson_overlay *meson_overlay = to_meson_overlay(plane);
509 struct meson_drm *priv = meson_overlay->priv;
510
511 DRM_DEBUG_DRIVER("\n");
512
513 priv->viu.vd1_enabled = false;
514
515 /* Disable VD1 */
516 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
517 writel_relaxed(0, priv->io_base + _REG(VD1_BLEND_SRC_CTRL));
518 writel_relaxed(0, priv->io_base + _REG(VD2_BLEND_SRC_CTRL));
519 writel_relaxed(0, priv->io_base + _REG(VD1_IF0_GEN_REG + 0x17b0));
520 writel_relaxed(0, priv->io_base + _REG(VD2_IF0_GEN_REG + 0x17b0));
521 } else
522 writel_bits_relaxed(VPP_VD1_POSTBLEND | VPP_VD1_PREBLEND, 0,
523 priv->io_base + _REG(VPP_MISC));
524
525}
526
527static const struct drm_plane_helper_funcs meson_overlay_helper_funcs = {
528 .atomic_check = meson_overlay_atomic_check,
529 .atomic_disable = meson_overlay_atomic_disable,
530 .atomic_update = meson_overlay_atomic_update,
531 .prepare_fb = drm_gem_fb_prepare_fb,
532};
533
534static const struct drm_plane_funcs meson_overlay_funcs = {
535 .update_plane = drm_atomic_helper_update_plane,
536 .disable_plane = drm_atomic_helper_disable_plane,
537 .destroy = drm_plane_cleanup,
538 .reset = drm_atomic_helper_plane_reset,
539 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
540 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
541};
542
543static const uint32_t supported_drm_formats[] = {
544 DRM_FORMAT_YUYV,
545 DRM_FORMAT_NV12,
546 DRM_FORMAT_NV21,
547 DRM_FORMAT_YUV444,
548 DRM_FORMAT_YUV422,
549 DRM_FORMAT_YUV420,
550 DRM_FORMAT_YUV411,
551 DRM_FORMAT_YUV410,
552};
553
554int meson_overlay_create(struct meson_drm *priv)
555{
556 struct meson_overlay *meson_overlay;
557 struct drm_plane *plane;
558
559 DRM_DEBUG_DRIVER("\n");
560
561 meson_overlay = devm_kzalloc(priv->drm->dev, sizeof(*meson_overlay),
562 GFP_KERNEL);
563 if (!meson_overlay)
564 return -ENOMEM;
565
566 meson_overlay->priv = priv;
567 plane = &meson_overlay->base;
568
569 drm_universal_plane_init(priv->drm, plane, 0xFF,
570 &meson_overlay_funcs,
571 supported_drm_formats,
572 ARRAY_SIZE(supported_drm_formats),
573 NULL,
574 DRM_PLANE_TYPE_OVERLAY, "meson_overlay_plane");
575
576 drm_plane_helper_add(plane, &meson_overlay_helper_funcs);
577
578 /* For now, VD Overlay plane is always on the back */
579 drm_plane_create_zpos_immutable_property(plane, 0);
580
581 priv->overlay_plane = plane;
582
583 DRM_DEBUG_DRIVER("\n");
584
585 return 0;
586}