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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
4 *
5 * Based on sun4i_backend.c, which is:
6 * Copyright (C) 2015 Free Electrons
7 * Copyright (C) 2015 NextThing Co
8 */
9
10#include <linux/component.h>
11#include <linux/dma-mapping.h>
12#include <linux/module.h>
13#include <linux/of.h>
14#include <linux/of_device.h>
15#include <linux/of_graph.h>
16#include <linux/platform_device.h>
17#include <linux/reset.h>
18
19#include <drm/drm_atomic.h>
20#include <drm/drm_atomic_helper.h>
21#include <drm/drm_crtc.h>
22#include <drm/drm_framebuffer.h>
23#include <drm/drm_gem_dma_helper.h>
24#include <drm/drm_probe_helper.h>
25
26#include "sun4i_drv.h"
27#include "sun8i_mixer.h"
28#include "sun8i_ui_layer.h"
29#include "sun8i_vi_layer.h"
30#include "sunxi_engine.h"
31
32struct de2_fmt_info {
33 u32 drm_fmt;
34 u32 de2_fmt;
35};
36
37static const struct de2_fmt_info de2_formats[] = {
38 {
39 .drm_fmt = DRM_FORMAT_ARGB8888,
40 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB8888,
41 },
42 {
43 .drm_fmt = DRM_FORMAT_ABGR8888,
44 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR8888,
45 },
46 {
47 .drm_fmt = DRM_FORMAT_RGBA8888,
48 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA8888,
49 },
50 {
51 .drm_fmt = DRM_FORMAT_BGRA8888,
52 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA8888,
53 },
54 {
55 .drm_fmt = DRM_FORMAT_XRGB8888,
56 .de2_fmt = SUN8I_MIXER_FBFMT_XRGB8888,
57 },
58 {
59 .drm_fmt = DRM_FORMAT_XBGR8888,
60 .de2_fmt = SUN8I_MIXER_FBFMT_XBGR8888,
61 },
62 {
63 .drm_fmt = DRM_FORMAT_RGBX8888,
64 .de2_fmt = SUN8I_MIXER_FBFMT_RGBX8888,
65 },
66 {
67 .drm_fmt = DRM_FORMAT_BGRX8888,
68 .de2_fmt = SUN8I_MIXER_FBFMT_BGRX8888,
69 },
70 {
71 .drm_fmt = DRM_FORMAT_RGB888,
72 .de2_fmt = SUN8I_MIXER_FBFMT_RGB888,
73 },
74 {
75 .drm_fmt = DRM_FORMAT_BGR888,
76 .de2_fmt = SUN8I_MIXER_FBFMT_BGR888,
77 },
78 {
79 .drm_fmt = DRM_FORMAT_RGB565,
80 .de2_fmt = SUN8I_MIXER_FBFMT_RGB565,
81 },
82 {
83 .drm_fmt = DRM_FORMAT_BGR565,
84 .de2_fmt = SUN8I_MIXER_FBFMT_BGR565,
85 },
86 {
87 .drm_fmt = DRM_FORMAT_ARGB4444,
88 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB4444,
89 },
90 {
91 /* for DE2 VI layer which ignores alpha */
92 .drm_fmt = DRM_FORMAT_XRGB4444,
93 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB4444,
94 },
95 {
96 .drm_fmt = DRM_FORMAT_ABGR4444,
97 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR4444,
98 },
99 {
100 /* for DE2 VI layer which ignores alpha */
101 .drm_fmt = DRM_FORMAT_XBGR4444,
102 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR4444,
103 },
104 {
105 .drm_fmt = DRM_FORMAT_RGBA4444,
106 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA4444,
107 },
108 {
109 /* for DE2 VI layer which ignores alpha */
110 .drm_fmt = DRM_FORMAT_RGBX4444,
111 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA4444,
112 },
113 {
114 .drm_fmt = DRM_FORMAT_BGRA4444,
115 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA4444,
116 },
117 {
118 /* for DE2 VI layer which ignores alpha */
119 .drm_fmt = DRM_FORMAT_BGRX4444,
120 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA4444,
121 },
122 {
123 .drm_fmt = DRM_FORMAT_ARGB1555,
124 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB1555,
125 },
126 {
127 /* for DE2 VI layer which ignores alpha */
128 .drm_fmt = DRM_FORMAT_XRGB1555,
129 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB1555,
130 },
131 {
132 .drm_fmt = DRM_FORMAT_ABGR1555,
133 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR1555,
134 },
135 {
136 /* for DE2 VI layer which ignores alpha */
137 .drm_fmt = DRM_FORMAT_XBGR1555,
138 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR1555,
139 },
140 {
141 .drm_fmt = DRM_FORMAT_RGBA5551,
142 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA5551,
143 },
144 {
145 /* for DE2 VI layer which ignores alpha */
146 .drm_fmt = DRM_FORMAT_RGBX5551,
147 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA5551,
148 },
149 {
150 .drm_fmt = DRM_FORMAT_BGRA5551,
151 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA5551,
152 },
153 {
154 /* for DE2 VI layer which ignores alpha */
155 .drm_fmt = DRM_FORMAT_BGRX5551,
156 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA5551,
157 },
158 {
159 .drm_fmt = DRM_FORMAT_ARGB2101010,
160 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB2101010,
161 },
162 {
163 .drm_fmt = DRM_FORMAT_ABGR2101010,
164 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR2101010,
165 },
166 {
167 .drm_fmt = DRM_FORMAT_RGBA1010102,
168 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA1010102,
169 },
170 {
171 .drm_fmt = DRM_FORMAT_BGRA1010102,
172 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA1010102,
173 },
174 {
175 .drm_fmt = DRM_FORMAT_UYVY,
176 .de2_fmt = SUN8I_MIXER_FBFMT_UYVY,
177 },
178 {
179 .drm_fmt = DRM_FORMAT_VYUY,
180 .de2_fmt = SUN8I_MIXER_FBFMT_VYUY,
181 },
182 {
183 .drm_fmt = DRM_FORMAT_YUYV,
184 .de2_fmt = SUN8I_MIXER_FBFMT_YUYV,
185 },
186 {
187 .drm_fmt = DRM_FORMAT_YVYU,
188 .de2_fmt = SUN8I_MIXER_FBFMT_YVYU,
189 },
190 {
191 .drm_fmt = DRM_FORMAT_NV16,
192 .de2_fmt = SUN8I_MIXER_FBFMT_NV16,
193 },
194 {
195 .drm_fmt = DRM_FORMAT_NV61,
196 .de2_fmt = SUN8I_MIXER_FBFMT_NV61,
197 },
198 {
199 .drm_fmt = DRM_FORMAT_NV12,
200 .de2_fmt = SUN8I_MIXER_FBFMT_NV12,
201 },
202 {
203 .drm_fmt = DRM_FORMAT_NV21,
204 .de2_fmt = SUN8I_MIXER_FBFMT_NV21,
205 },
206 {
207 .drm_fmt = DRM_FORMAT_YUV422,
208 .de2_fmt = SUN8I_MIXER_FBFMT_YUV422,
209 },
210 {
211 .drm_fmt = DRM_FORMAT_YUV420,
212 .de2_fmt = SUN8I_MIXER_FBFMT_YUV420,
213 },
214 {
215 .drm_fmt = DRM_FORMAT_YUV411,
216 .de2_fmt = SUN8I_MIXER_FBFMT_YUV411,
217 },
218 {
219 .drm_fmt = DRM_FORMAT_YVU422,
220 .de2_fmt = SUN8I_MIXER_FBFMT_YUV422,
221 },
222 {
223 .drm_fmt = DRM_FORMAT_YVU420,
224 .de2_fmt = SUN8I_MIXER_FBFMT_YUV420,
225 },
226 {
227 .drm_fmt = DRM_FORMAT_YVU411,
228 .de2_fmt = SUN8I_MIXER_FBFMT_YUV411,
229 },
230 {
231 .drm_fmt = DRM_FORMAT_P010,
232 .de2_fmt = SUN8I_MIXER_FBFMT_P010_YUV,
233 },
234 {
235 .drm_fmt = DRM_FORMAT_P210,
236 .de2_fmt = SUN8I_MIXER_FBFMT_P210_YUV,
237 },
238};
239
240int sun8i_mixer_drm_format_to_hw(u32 format, u32 *hw_format)
241{
242 unsigned int i;
243
244 for (i = 0; i < ARRAY_SIZE(de2_formats); ++i)
245 if (de2_formats[i].drm_fmt == format) {
246 *hw_format = de2_formats[i].de2_fmt;
247 return 0;
248 }
249
250 return -EINVAL;
251}
252
253static void sun8i_layer_enable(struct sun8i_layer *layer, bool enable)
254{
255 u32 ch_base = sun8i_channel_base(layer->mixer, layer->channel);
256 u32 val, reg, mask;
257
258 if (layer->type == SUN8I_LAYER_TYPE_UI) {
259 val = enable ? SUN8I_MIXER_CHAN_UI_LAYER_ATTR_EN : 0;
260 mask = SUN8I_MIXER_CHAN_UI_LAYER_ATTR_EN;
261 reg = SUN8I_MIXER_CHAN_UI_LAYER_ATTR(ch_base, layer->overlay);
262 } else {
263 val = enable ? SUN8I_MIXER_CHAN_VI_LAYER_ATTR_EN : 0;
264 mask = SUN8I_MIXER_CHAN_VI_LAYER_ATTR_EN;
265 reg = SUN8I_MIXER_CHAN_VI_LAYER_ATTR(ch_base, layer->overlay);
266 }
267
268 regmap_update_bits(layer->mixer->engine.regs, reg, mask, val);
269}
270
271static void sun8i_mixer_commit(struct sunxi_engine *engine,
272 struct drm_crtc *crtc,
273 struct drm_atomic_state *state)
274{
275 struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
276 u32 bld_base = sun8i_blender_base(mixer);
277 struct drm_plane_state *plane_state;
278 struct drm_plane *plane;
279 u32 route = 0, pipe_en = 0;
280
281 DRM_DEBUG_DRIVER("Committing changes\n");
282
283 drm_for_each_plane(plane, state->dev) {
284 struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
285 bool enable;
286 int zpos;
287
288 if (!(plane->possible_crtcs & drm_crtc_mask(crtc)) || layer->mixer != mixer)
289 continue;
290
291 plane_state = drm_atomic_get_new_plane_state(state, plane);
292 if (!plane_state)
293 plane_state = plane->state;
294
295 enable = plane_state->crtc && plane_state->visible;
296 zpos = plane_state->normalized_zpos;
297
298 DRM_DEBUG_DRIVER(" plane %d: chan=%d ovl=%d en=%d zpos=%d\n",
299 plane->base.id, layer->channel, layer->overlay,
300 enable, zpos);
301
302 /*
303 * We always update the layer enable bit, because it can clear
304 * spontaneously for unknown reasons.
305 */
306 sun8i_layer_enable(layer, enable);
307
308 if (!enable)
309 continue;
310
311 /* Route layer to pipe based on zpos */
312 route |= layer->channel << SUN8I_MIXER_BLEND_ROUTE_PIPE_SHIFT(zpos);
313 pipe_en |= SUN8I_MIXER_BLEND_PIPE_CTL_EN(zpos);
314 }
315
316 regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ROUTE(bld_base), route);
317 regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(bld_base),
318 pipe_en | SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0));
319
320 regmap_write(engine->regs, SUN8I_MIXER_GLOBAL_DBUFF,
321 SUN8I_MIXER_GLOBAL_DBUFF_ENABLE);
322}
323
324static struct drm_plane **sun8i_layers_init(struct drm_device *drm,
325 struct sunxi_engine *engine)
326{
327 struct drm_plane **planes;
328 struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
329 int i;
330
331 planes = devm_kcalloc(drm->dev,
332 mixer->cfg->vi_num + mixer->cfg->ui_num + 1,
333 sizeof(*planes), GFP_KERNEL);
334 if (!planes)
335 return ERR_PTR(-ENOMEM);
336
337 for (i = 0; i < mixer->cfg->vi_num; i++) {
338 struct sun8i_layer *layer;
339
340 layer = sun8i_vi_layer_init_one(drm, mixer, i);
341 if (IS_ERR(layer)) {
342 dev_err(drm->dev,
343 "Couldn't initialize overlay plane\n");
344 return ERR_CAST(layer);
345 }
346
347 planes[i] = &layer->plane;
348 }
349
350 for (i = 0; i < mixer->cfg->ui_num; i++) {
351 struct sun8i_layer *layer;
352
353 layer = sun8i_ui_layer_init_one(drm, mixer, i);
354 if (IS_ERR(layer)) {
355 dev_err(drm->dev, "Couldn't initialize %s plane\n",
356 i ? "overlay" : "primary");
357 return ERR_CAST(layer);
358 }
359
360 planes[mixer->cfg->vi_num + i] = &layer->plane;
361 }
362
363 return planes;
364}
365
366static void sun8i_mixer_mode_set(struct sunxi_engine *engine,
367 const struct drm_display_mode *mode)
368{
369 struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
370 u32 bld_base, size, val;
371 bool interlaced;
372
373 bld_base = sun8i_blender_base(mixer);
374 interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
375 size = SUN8I_MIXER_SIZE(mode->hdisplay, mode->vdisplay);
376
377 DRM_DEBUG_DRIVER("Updating global size W: %u H: %u\n",
378 mode->hdisplay, mode->vdisplay);
379
380 regmap_write(engine->regs, SUN8I_MIXER_GLOBAL_SIZE, size);
381 regmap_write(engine->regs, SUN8I_MIXER_BLEND_OUTSIZE(bld_base), size);
382
383 if (interlaced)
384 val = SUN8I_MIXER_BLEND_OUTCTL_INTERLACED;
385 else
386 val = 0;
387
388 regmap_update_bits(engine->regs, SUN8I_MIXER_BLEND_OUTCTL(bld_base),
389 SUN8I_MIXER_BLEND_OUTCTL_INTERLACED, val);
390
391 DRM_DEBUG_DRIVER("Switching display mixer interlaced mode %s\n",
392 interlaced ? "on" : "off");
393}
394
395static const struct sunxi_engine_ops sun8i_engine_ops = {
396 .commit = sun8i_mixer_commit,
397 .layers_init = sun8i_layers_init,
398 .mode_set = sun8i_mixer_mode_set,
399};
400
401static const struct regmap_config sun8i_mixer_regmap_config = {
402 .reg_bits = 32,
403 .val_bits = 32,
404 .reg_stride = 4,
405 .max_register = 0xffffc, /* guessed */
406};
407
408static int sun8i_mixer_of_get_id(struct device_node *node)
409{
410 struct device_node *ep, *remote;
411 struct of_endpoint of_ep;
412
413 /* Output port is 1, and we want the first endpoint. */
414 ep = of_graph_get_endpoint_by_regs(node, 1, -1);
415 if (!ep)
416 return -EINVAL;
417
418 remote = of_graph_get_remote_endpoint(ep);
419 of_node_put(ep);
420 if (!remote)
421 return -EINVAL;
422
423 of_graph_parse_endpoint(remote, &of_ep);
424 of_node_put(remote);
425 return of_ep.id;
426}
427
428static int sun8i_mixer_bind(struct device *dev, struct device *master,
429 void *data)
430{
431 struct platform_device *pdev = to_platform_device(dev);
432 struct drm_device *drm = data;
433 struct sun4i_drv *drv = drm->dev_private;
434 struct sun8i_mixer *mixer;
435 void __iomem *regs;
436 unsigned int base;
437 int plane_cnt;
438 int i, ret;
439
440 /*
441 * The mixer uses single 32-bit register to store memory
442 * addresses, so that it cannot deal with 64-bit memory
443 * addresses.
444 * Restrict the DMA mask so that the mixer won't be
445 * allocated some memory that is too high.
446 */
447 ret = dma_set_mask(dev, DMA_BIT_MASK(32));
448 if (ret) {
449 dev_err(dev, "Cannot do 32-bit DMA.\n");
450 return ret;
451 }
452
453 mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL);
454 if (!mixer)
455 return -ENOMEM;
456 dev_set_drvdata(dev, mixer);
457 mixer->engine.ops = &sun8i_engine_ops;
458 mixer->engine.node = dev->of_node;
459
460 if (of_property_present(dev->of_node, "iommus")) {
461 /*
462 * This assume we have the same DMA constraints for
463 * all our the mixers in our pipeline. This sounds
464 * bad, but it has always been the case for us, and
465 * DRM doesn't do per-device allocation either, so we
466 * would need to fix DRM first...
467 */
468 ret = of_dma_configure(drm->dev, dev->of_node, true);
469 if (ret)
470 return ret;
471 }
472
473 /*
474 * While this function can fail, we shouldn't do anything
475 * if this happens. Some early DE2 DT entries don't provide
476 * mixer id but work nevertheless because matching between
477 * TCON and mixer is done by comparing node pointers (old
478 * way) instead comparing ids. If this function fails and
479 * id is needed, it will fail during id matching anyway.
480 */
481 mixer->engine.id = sun8i_mixer_of_get_id(dev->of_node);
482
483 mixer->cfg = of_device_get_match_data(dev);
484 if (!mixer->cfg)
485 return -EINVAL;
486
487 regs = devm_platform_ioremap_resource(pdev, 0);
488 if (IS_ERR(regs))
489 return PTR_ERR(regs);
490
491 mixer->engine.regs = devm_regmap_init_mmio(dev, regs,
492 &sun8i_mixer_regmap_config);
493 if (IS_ERR(mixer->engine.regs)) {
494 dev_err(dev, "Couldn't create the mixer regmap\n");
495 return PTR_ERR(mixer->engine.regs);
496 }
497
498 mixer->reset = devm_reset_control_get(dev, NULL);
499 if (IS_ERR(mixer->reset)) {
500 dev_err(dev, "Couldn't get our reset line\n");
501 return PTR_ERR(mixer->reset);
502 }
503
504 ret = reset_control_deassert(mixer->reset);
505 if (ret) {
506 dev_err(dev, "Couldn't deassert our reset line\n");
507 return ret;
508 }
509
510 mixer->bus_clk = devm_clk_get(dev, "bus");
511 if (IS_ERR(mixer->bus_clk)) {
512 dev_err(dev, "Couldn't get the mixer bus clock\n");
513 ret = PTR_ERR(mixer->bus_clk);
514 goto err_assert_reset;
515 }
516 clk_prepare_enable(mixer->bus_clk);
517
518 mixer->mod_clk = devm_clk_get(dev, "mod");
519 if (IS_ERR(mixer->mod_clk)) {
520 dev_err(dev, "Couldn't get the mixer module clock\n");
521 ret = PTR_ERR(mixer->mod_clk);
522 goto err_disable_bus_clk;
523 }
524
525 /*
526 * It seems that we need to enforce that rate for whatever
527 * reason for the mixer to be functional. Make sure it's the
528 * case.
529 */
530 if (mixer->cfg->mod_rate)
531 clk_set_rate(mixer->mod_clk, mixer->cfg->mod_rate);
532
533 clk_prepare_enable(mixer->mod_clk);
534
535 list_add_tail(&mixer->engine.list, &drv->engine_list);
536
537 base = sun8i_blender_base(mixer);
538
539 /* Reset registers and disable unused sub-engines */
540 if (mixer->cfg->is_de3) {
541 for (i = 0; i < DE3_MIXER_UNIT_SIZE; i += 4)
542 regmap_write(mixer->engine.regs, i, 0);
543
544 regmap_write(mixer->engine.regs, SUN50I_MIXER_FCE_EN, 0);
545 regmap_write(mixer->engine.regs, SUN50I_MIXER_PEAK_EN, 0);
546 regmap_write(mixer->engine.regs, SUN50I_MIXER_LCTI_EN, 0);
547 regmap_write(mixer->engine.regs, SUN50I_MIXER_BLS_EN, 0);
548 regmap_write(mixer->engine.regs, SUN50I_MIXER_FCC_EN, 0);
549 regmap_write(mixer->engine.regs, SUN50I_MIXER_DNS_EN, 0);
550 regmap_write(mixer->engine.regs, SUN50I_MIXER_DRC_EN, 0);
551 regmap_write(mixer->engine.regs, SUN50I_MIXER_FMT_EN, 0);
552 regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC0_EN, 0);
553 regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC1_EN, 0);
554 } else {
555 for (i = 0; i < DE2_MIXER_UNIT_SIZE; i += 4)
556 regmap_write(mixer->engine.regs, i, 0);
557
558 regmap_write(mixer->engine.regs, SUN8I_MIXER_FCE_EN, 0);
559 regmap_write(mixer->engine.regs, SUN8I_MIXER_BWS_EN, 0);
560 regmap_write(mixer->engine.regs, SUN8I_MIXER_LTI_EN, 0);
561 regmap_write(mixer->engine.regs, SUN8I_MIXER_PEAK_EN, 0);
562 regmap_write(mixer->engine.regs, SUN8I_MIXER_ASE_EN, 0);
563 regmap_write(mixer->engine.regs, SUN8I_MIXER_FCC_EN, 0);
564 regmap_write(mixer->engine.regs, SUN8I_MIXER_DCSC_EN, 0);
565 }
566
567 /* Enable the mixer */
568 regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL,
569 SUN8I_MIXER_GLOBAL_CTL_RT_EN);
570
571 /* Set background color to black */
572 regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base),
573 SUN8I_MIXER_BLEND_COLOR_BLACK);
574
575 /*
576 * Set fill color of bottom plane to black. Generally not needed
577 * except when VI plane is at bottom (zpos = 0) and enabled.
578 */
579 regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
580 SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0));
581 regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0),
582 SUN8I_MIXER_BLEND_COLOR_BLACK);
583
584 plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num;
585 for (i = 0; i < plane_cnt; i++)
586 regmap_write(mixer->engine.regs,
587 SUN8I_MIXER_BLEND_MODE(base, i),
588 SUN8I_MIXER_BLEND_MODE_DEF);
589
590 regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
591 SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0);
592
593 return 0;
594
595err_disable_bus_clk:
596 clk_disable_unprepare(mixer->bus_clk);
597err_assert_reset:
598 reset_control_assert(mixer->reset);
599 return ret;
600}
601
602static void sun8i_mixer_unbind(struct device *dev, struct device *master,
603 void *data)
604{
605 struct sun8i_mixer *mixer = dev_get_drvdata(dev);
606
607 list_del(&mixer->engine.list);
608
609 clk_disable_unprepare(mixer->mod_clk);
610 clk_disable_unprepare(mixer->bus_clk);
611 reset_control_assert(mixer->reset);
612}
613
614static const struct component_ops sun8i_mixer_ops = {
615 .bind = sun8i_mixer_bind,
616 .unbind = sun8i_mixer_unbind,
617};
618
619static int sun8i_mixer_probe(struct platform_device *pdev)
620{
621 return component_add(&pdev->dev, &sun8i_mixer_ops);
622}
623
624static void sun8i_mixer_remove(struct platform_device *pdev)
625{
626 component_del(&pdev->dev, &sun8i_mixer_ops);
627}
628
629static const struct sun8i_mixer_cfg sun8i_a83t_mixer0_cfg = {
630 .ccsc = CCSC_MIXER0_LAYOUT,
631 .scaler_mask = 0xf,
632 .scanline_yuv = 2048,
633 .ui_num = 3,
634 .vi_num = 1,
635};
636
637static const struct sun8i_mixer_cfg sun8i_a83t_mixer1_cfg = {
638 .ccsc = CCSC_MIXER1_LAYOUT,
639 .scaler_mask = 0x3,
640 .scanline_yuv = 2048,
641 .ui_num = 1,
642 .vi_num = 1,
643};
644
645static const struct sun8i_mixer_cfg sun8i_h3_mixer0_cfg = {
646 .ccsc = CCSC_MIXER0_LAYOUT,
647 .mod_rate = 432000000,
648 .scaler_mask = 0xf,
649 .scanline_yuv = 2048,
650 .ui_num = 3,
651 .vi_num = 1,
652};
653
654static const struct sun8i_mixer_cfg sun8i_r40_mixer0_cfg = {
655 .ccsc = CCSC_MIXER0_LAYOUT,
656 .mod_rate = 297000000,
657 .scaler_mask = 0xf,
658 .scanline_yuv = 2048,
659 .ui_num = 3,
660 .vi_num = 1,
661};
662
663static const struct sun8i_mixer_cfg sun8i_r40_mixer1_cfg = {
664 .ccsc = CCSC_MIXER1_LAYOUT,
665 .mod_rate = 297000000,
666 .scaler_mask = 0x3,
667 .scanline_yuv = 2048,
668 .ui_num = 1,
669 .vi_num = 1,
670};
671
672static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = {
673 .vi_num = 2,
674 .ui_num = 1,
675 .scaler_mask = 0x3,
676 .scanline_yuv = 2048,
677 .ccsc = CCSC_MIXER0_LAYOUT,
678 .mod_rate = 150000000,
679};
680
681static const struct sun8i_mixer_cfg sun20i_d1_mixer0_cfg = {
682 .ccsc = CCSC_D1_MIXER0_LAYOUT,
683 .mod_rate = 297000000,
684 .scaler_mask = 0x3,
685 .scanline_yuv = 2048,
686 .ui_num = 1,
687 .vi_num = 1,
688};
689
690static const struct sun8i_mixer_cfg sun20i_d1_mixer1_cfg = {
691 .ccsc = CCSC_MIXER1_LAYOUT,
692 .mod_rate = 297000000,
693 .scaler_mask = 0x1,
694 .scanline_yuv = 1024,
695 .ui_num = 0,
696 .vi_num = 1,
697};
698
699static const struct sun8i_mixer_cfg sun50i_a64_mixer0_cfg = {
700 .ccsc = CCSC_MIXER0_LAYOUT,
701 .mod_rate = 297000000,
702 .scaler_mask = 0xf,
703 .scanline_yuv = 4096,
704 .ui_num = 3,
705 .vi_num = 1,
706};
707
708static const struct sun8i_mixer_cfg sun50i_a64_mixer1_cfg = {
709 .ccsc = CCSC_MIXER1_LAYOUT,
710 .mod_rate = 297000000,
711 .scaler_mask = 0x3,
712 .scanline_yuv = 2048,
713 .ui_num = 1,
714 .vi_num = 1,
715};
716
717static const struct sun8i_mixer_cfg sun50i_h6_mixer0_cfg = {
718 .ccsc = CCSC_MIXER0_LAYOUT,
719 .is_de3 = true,
720 .mod_rate = 600000000,
721 .scaler_mask = 0xf,
722 .scanline_yuv = 4096,
723 .ui_num = 3,
724 .vi_num = 1,
725};
726
727static const struct of_device_id sun8i_mixer_of_table[] = {
728 {
729 .compatible = "allwinner,sun8i-a83t-de2-mixer-0",
730 .data = &sun8i_a83t_mixer0_cfg,
731 },
732 {
733 .compatible = "allwinner,sun8i-a83t-de2-mixer-1",
734 .data = &sun8i_a83t_mixer1_cfg,
735 },
736 {
737 .compatible = "allwinner,sun8i-h3-de2-mixer-0",
738 .data = &sun8i_h3_mixer0_cfg,
739 },
740 {
741 .compatible = "allwinner,sun8i-r40-de2-mixer-0",
742 .data = &sun8i_r40_mixer0_cfg,
743 },
744 {
745 .compatible = "allwinner,sun8i-r40-de2-mixer-1",
746 .data = &sun8i_r40_mixer1_cfg,
747 },
748 {
749 .compatible = "allwinner,sun8i-v3s-de2-mixer",
750 .data = &sun8i_v3s_mixer_cfg,
751 },
752 {
753 .compatible = "allwinner,sun20i-d1-de2-mixer-0",
754 .data = &sun20i_d1_mixer0_cfg,
755 },
756 {
757 .compatible = "allwinner,sun20i-d1-de2-mixer-1",
758 .data = &sun20i_d1_mixer1_cfg,
759 },
760 {
761 .compatible = "allwinner,sun50i-a64-de2-mixer-0",
762 .data = &sun50i_a64_mixer0_cfg,
763 },
764 {
765 .compatible = "allwinner,sun50i-a64-de2-mixer-1",
766 .data = &sun50i_a64_mixer1_cfg,
767 },
768 {
769 .compatible = "allwinner,sun50i-h6-de3-mixer-0",
770 .data = &sun50i_h6_mixer0_cfg,
771 },
772 { }
773};
774MODULE_DEVICE_TABLE(of, sun8i_mixer_of_table);
775
776static struct platform_driver sun8i_mixer_platform_driver = {
777 .probe = sun8i_mixer_probe,
778 .remove = sun8i_mixer_remove,
779 .driver = {
780 .name = "sun8i-mixer",
781 .of_match_table = sun8i_mixer_of_table,
782 },
783};
784module_platform_driver(sun8i_mixer_platform_driver);
785
786MODULE_AUTHOR("Icenowy Zheng <icenowy@aosc.io>");
787MODULE_DESCRIPTION("Allwinner DE2 Mixer driver");
788MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
4 *
5 * Based on sun4i_backend.c, which is:
6 * Copyright (C) 2015 Free Electrons
7 * Copyright (C) 2015 NextThing Co
8 */
9
10#include <linux/component.h>
11#include <linux/dma-mapping.h>
12#include <linux/module.h>
13#include <linux/of_device.h>
14#include <linux/of_graph.h>
15#include <linux/reset.h>
16
17#include <drm/drm_atomic_helper.h>
18#include <drm/drm_crtc.h>
19#include <drm/drm_fb_cma_helper.h>
20#include <drm/drm_gem_cma_helper.h>
21#include <drm/drm_plane_helper.h>
22#include <drm/drm_probe_helper.h>
23
24#include "sun4i_drv.h"
25#include "sun8i_mixer.h"
26#include "sun8i_ui_layer.h"
27#include "sun8i_vi_layer.h"
28#include "sunxi_engine.h"
29
30static const struct de2_fmt_info de2_formats[] = {
31 {
32 .drm_fmt = DRM_FORMAT_ARGB8888,
33 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB8888,
34 .rgb = true,
35 .csc = SUN8I_CSC_MODE_OFF,
36 },
37 {
38 .drm_fmt = DRM_FORMAT_ABGR8888,
39 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR8888,
40 .rgb = true,
41 .csc = SUN8I_CSC_MODE_OFF,
42 },
43 {
44 .drm_fmt = DRM_FORMAT_RGBA8888,
45 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA8888,
46 .rgb = true,
47 .csc = SUN8I_CSC_MODE_OFF,
48 },
49 {
50 .drm_fmt = DRM_FORMAT_BGRA8888,
51 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA8888,
52 .rgb = true,
53 .csc = SUN8I_CSC_MODE_OFF,
54 },
55 {
56 .drm_fmt = DRM_FORMAT_XRGB8888,
57 .de2_fmt = SUN8I_MIXER_FBFMT_XRGB8888,
58 .rgb = true,
59 .csc = SUN8I_CSC_MODE_OFF,
60 },
61 {
62 .drm_fmt = DRM_FORMAT_XBGR8888,
63 .de2_fmt = SUN8I_MIXER_FBFMT_XBGR8888,
64 .rgb = true,
65 .csc = SUN8I_CSC_MODE_OFF,
66 },
67 {
68 .drm_fmt = DRM_FORMAT_RGBX8888,
69 .de2_fmt = SUN8I_MIXER_FBFMT_RGBX8888,
70 .rgb = true,
71 .csc = SUN8I_CSC_MODE_OFF,
72 },
73 {
74 .drm_fmt = DRM_FORMAT_BGRX8888,
75 .de2_fmt = SUN8I_MIXER_FBFMT_BGRX8888,
76 .rgb = true,
77 .csc = SUN8I_CSC_MODE_OFF,
78 },
79 {
80 .drm_fmt = DRM_FORMAT_RGB888,
81 .de2_fmt = SUN8I_MIXER_FBFMT_RGB888,
82 .rgb = true,
83 .csc = SUN8I_CSC_MODE_OFF,
84 },
85 {
86 .drm_fmt = DRM_FORMAT_BGR888,
87 .de2_fmt = SUN8I_MIXER_FBFMT_BGR888,
88 .rgb = true,
89 .csc = SUN8I_CSC_MODE_OFF,
90 },
91 {
92 .drm_fmt = DRM_FORMAT_RGB565,
93 .de2_fmt = SUN8I_MIXER_FBFMT_RGB565,
94 .rgb = true,
95 .csc = SUN8I_CSC_MODE_OFF,
96 },
97 {
98 .drm_fmt = DRM_FORMAT_BGR565,
99 .de2_fmt = SUN8I_MIXER_FBFMT_BGR565,
100 .rgb = true,
101 .csc = SUN8I_CSC_MODE_OFF,
102 },
103 {
104 .drm_fmt = DRM_FORMAT_ARGB4444,
105 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB4444,
106 .rgb = true,
107 .csc = SUN8I_CSC_MODE_OFF,
108 },
109 {
110 .drm_fmt = DRM_FORMAT_ABGR4444,
111 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR4444,
112 .rgb = true,
113 .csc = SUN8I_CSC_MODE_OFF,
114 },
115 {
116 .drm_fmt = DRM_FORMAT_RGBA4444,
117 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA4444,
118 .rgb = true,
119 .csc = SUN8I_CSC_MODE_OFF,
120 },
121 {
122 .drm_fmt = DRM_FORMAT_BGRA4444,
123 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA4444,
124 .rgb = true,
125 .csc = SUN8I_CSC_MODE_OFF,
126 },
127 {
128 .drm_fmt = DRM_FORMAT_ARGB1555,
129 .de2_fmt = SUN8I_MIXER_FBFMT_ARGB1555,
130 .rgb = true,
131 .csc = SUN8I_CSC_MODE_OFF,
132 },
133 {
134 .drm_fmt = DRM_FORMAT_ABGR1555,
135 .de2_fmt = SUN8I_MIXER_FBFMT_ABGR1555,
136 .rgb = true,
137 .csc = SUN8I_CSC_MODE_OFF,
138 },
139 {
140 .drm_fmt = DRM_FORMAT_RGBA5551,
141 .de2_fmt = SUN8I_MIXER_FBFMT_RGBA5551,
142 .rgb = true,
143 .csc = SUN8I_CSC_MODE_OFF,
144 },
145 {
146 .drm_fmt = DRM_FORMAT_BGRA5551,
147 .de2_fmt = SUN8I_MIXER_FBFMT_BGRA5551,
148 .rgb = true,
149 .csc = SUN8I_CSC_MODE_OFF,
150 },
151 {
152 .drm_fmt = DRM_FORMAT_UYVY,
153 .de2_fmt = SUN8I_MIXER_FBFMT_UYVY,
154 .rgb = false,
155 .csc = SUN8I_CSC_MODE_YUV2RGB,
156 },
157 {
158 .drm_fmt = DRM_FORMAT_VYUY,
159 .de2_fmt = SUN8I_MIXER_FBFMT_VYUY,
160 .rgb = false,
161 .csc = SUN8I_CSC_MODE_YUV2RGB,
162 },
163 {
164 .drm_fmt = DRM_FORMAT_YUYV,
165 .de2_fmt = SUN8I_MIXER_FBFMT_YUYV,
166 .rgb = false,
167 .csc = SUN8I_CSC_MODE_YUV2RGB,
168 },
169 {
170 .drm_fmt = DRM_FORMAT_YVYU,
171 .de2_fmt = SUN8I_MIXER_FBFMT_YVYU,
172 .rgb = false,
173 .csc = SUN8I_CSC_MODE_YUV2RGB,
174 },
175 {
176 .drm_fmt = DRM_FORMAT_NV16,
177 .de2_fmt = SUN8I_MIXER_FBFMT_NV16,
178 .rgb = false,
179 .csc = SUN8I_CSC_MODE_YUV2RGB,
180 },
181 {
182 .drm_fmt = DRM_FORMAT_NV61,
183 .de2_fmt = SUN8I_MIXER_FBFMT_NV61,
184 .rgb = false,
185 .csc = SUN8I_CSC_MODE_YUV2RGB,
186 },
187 {
188 .drm_fmt = DRM_FORMAT_NV12,
189 .de2_fmt = SUN8I_MIXER_FBFMT_NV12,
190 .rgb = false,
191 .csc = SUN8I_CSC_MODE_YUV2RGB,
192 },
193 {
194 .drm_fmt = DRM_FORMAT_NV21,
195 .de2_fmt = SUN8I_MIXER_FBFMT_NV21,
196 .rgb = false,
197 .csc = SUN8I_CSC_MODE_YUV2RGB,
198 },
199 {
200 .drm_fmt = DRM_FORMAT_YUV444,
201 .de2_fmt = SUN8I_MIXER_FBFMT_RGB888,
202 .rgb = true,
203 .csc = SUN8I_CSC_MODE_YUV2RGB,
204 },
205 {
206 .drm_fmt = DRM_FORMAT_YUV422,
207 .de2_fmt = SUN8I_MIXER_FBFMT_YUV422,
208 .rgb = false,
209 .csc = SUN8I_CSC_MODE_YUV2RGB,
210 },
211 {
212 .drm_fmt = DRM_FORMAT_YUV420,
213 .de2_fmt = SUN8I_MIXER_FBFMT_YUV420,
214 .rgb = false,
215 .csc = SUN8I_CSC_MODE_YUV2RGB,
216 },
217 {
218 .drm_fmt = DRM_FORMAT_YUV411,
219 .de2_fmt = SUN8I_MIXER_FBFMT_YUV411,
220 .rgb = false,
221 .csc = SUN8I_CSC_MODE_YUV2RGB,
222 },
223 {
224 .drm_fmt = DRM_FORMAT_YVU444,
225 .de2_fmt = SUN8I_MIXER_FBFMT_RGB888,
226 .rgb = true,
227 .csc = SUN8I_CSC_MODE_YVU2RGB,
228 },
229 {
230 .drm_fmt = DRM_FORMAT_YVU422,
231 .de2_fmt = SUN8I_MIXER_FBFMT_YUV422,
232 .rgb = false,
233 .csc = SUN8I_CSC_MODE_YVU2RGB,
234 },
235 {
236 .drm_fmt = DRM_FORMAT_YVU420,
237 .de2_fmt = SUN8I_MIXER_FBFMT_YUV420,
238 .rgb = false,
239 .csc = SUN8I_CSC_MODE_YVU2RGB,
240 },
241 {
242 .drm_fmt = DRM_FORMAT_YVU411,
243 .de2_fmt = SUN8I_MIXER_FBFMT_YUV411,
244 .rgb = false,
245 .csc = SUN8I_CSC_MODE_YVU2RGB,
246 },
247};
248
249const struct de2_fmt_info *sun8i_mixer_format_info(u32 format)
250{
251 unsigned int i;
252
253 for (i = 0; i < ARRAY_SIZE(de2_formats); ++i)
254 if (de2_formats[i].drm_fmt == format)
255 return &de2_formats[i];
256
257 return NULL;
258}
259
260static void sun8i_mixer_commit(struct sunxi_engine *engine)
261{
262 DRM_DEBUG_DRIVER("Committing changes\n");
263
264 regmap_write(engine->regs, SUN8I_MIXER_GLOBAL_DBUFF,
265 SUN8I_MIXER_GLOBAL_DBUFF_ENABLE);
266}
267
268static struct drm_plane **sun8i_layers_init(struct drm_device *drm,
269 struct sunxi_engine *engine)
270{
271 struct drm_plane **planes;
272 struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
273 int i;
274
275 planes = devm_kcalloc(drm->dev,
276 mixer->cfg->vi_num + mixer->cfg->ui_num + 1,
277 sizeof(*planes), GFP_KERNEL);
278 if (!planes)
279 return ERR_PTR(-ENOMEM);
280
281 for (i = 0; i < mixer->cfg->vi_num; i++) {
282 struct sun8i_vi_layer *layer;
283
284 layer = sun8i_vi_layer_init_one(drm, mixer, i);
285 if (IS_ERR(layer)) {
286 dev_err(drm->dev,
287 "Couldn't initialize overlay plane\n");
288 return ERR_CAST(layer);
289 };
290
291 planes[i] = &layer->plane;
292 };
293
294 for (i = 0; i < mixer->cfg->ui_num; i++) {
295 struct sun8i_ui_layer *layer;
296
297 layer = sun8i_ui_layer_init_one(drm, mixer, i);
298 if (IS_ERR(layer)) {
299 dev_err(drm->dev, "Couldn't initialize %s plane\n",
300 i ? "overlay" : "primary");
301 return ERR_CAST(layer);
302 };
303
304 planes[mixer->cfg->vi_num + i] = &layer->plane;
305 };
306
307 return planes;
308}
309
310static const struct sunxi_engine_ops sun8i_engine_ops = {
311 .commit = sun8i_mixer_commit,
312 .layers_init = sun8i_layers_init,
313};
314
315static struct regmap_config sun8i_mixer_regmap_config = {
316 .reg_bits = 32,
317 .val_bits = 32,
318 .reg_stride = 4,
319 .max_register = 0xbfffc, /* guessed */
320};
321
322static int sun8i_mixer_of_get_id(struct device_node *node)
323{
324 struct device_node *ep, *remote;
325 struct of_endpoint of_ep;
326
327 /* Output port is 1, and we want the first endpoint. */
328 ep = of_graph_get_endpoint_by_regs(node, 1, -1);
329 if (!ep)
330 return -EINVAL;
331
332 remote = of_graph_get_remote_endpoint(ep);
333 of_node_put(ep);
334 if (!remote)
335 return -EINVAL;
336
337 of_graph_parse_endpoint(remote, &of_ep);
338 of_node_put(remote);
339 return of_ep.id;
340}
341
342static int sun8i_mixer_bind(struct device *dev, struct device *master,
343 void *data)
344{
345 struct platform_device *pdev = to_platform_device(dev);
346 struct drm_device *drm = data;
347 struct sun4i_drv *drv = drm->dev_private;
348 struct sun8i_mixer *mixer;
349 struct resource *res;
350 void __iomem *regs;
351 unsigned int base;
352 int plane_cnt;
353 int i, ret;
354
355 /*
356 * The mixer uses single 32-bit register to store memory
357 * addresses, so that it cannot deal with 64-bit memory
358 * addresses.
359 * Restrict the DMA mask so that the mixer won't be
360 * allocated some memory that is too high.
361 */
362 ret = dma_set_mask(dev, DMA_BIT_MASK(32));
363 if (ret) {
364 dev_err(dev, "Cannot do 32-bit DMA.\n");
365 return ret;
366 }
367
368 mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL);
369 if (!mixer)
370 return -ENOMEM;
371 dev_set_drvdata(dev, mixer);
372 mixer->engine.ops = &sun8i_engine_ops;
373 mixer->engine.node = dev->of_node;
374
375 /*
376 * While this function can fail, we shouldn't do anything
377 * if this happens. Some early DE2 DT entries don't provide
378 * mixer id but work nevertheless because matching between
379 * TCON and mixer is done by comparing node pointers (old
380 * way) instead comparing ids. If this function fails and
381 * id is needed, it will fail during id matching anyway.
382 */
383 mixer->engine.id = sun8i_mixer_of_get_id(dev->of_node);
384
385 mixer->cfg = of_device_get_match_data(dev);
386 if (!mixer->cfg)
387 return -EINVAL;
388
389 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
390 regs = devm_ioremap_resource(dev, res);
391 if (IS_ERR(regs))
392 return PTR_ERR(regs);
393
394 mixer->engine.regs = devm_regmap_init_mmio(dev, regs,
395 &sun8i_mixer_regmap_config);
396 if (IS_ERR(mixer->engine.regs)) {
397 dev_err(dev, "Couldn't create the mixer regmap\n");
398 return PTR_ERR(mixer->engine.regs);
399 }
400
401 mixer->reset = devm_reset_control_get(dev, NULL);
402 if (IS_ERR(mixer->reset)) {
403 dev_err(dev, "Couldn't get our reset line\n");
404 return PTR_ERR(mixer->reset);
405 }
406
407 ret = reset_control_deassert(mixer->reset);
408 if (ret) {
409 dev_err(dev, "Couldn't deassert our reset line\n");
410 return ret;
411 }
412
413 mixer->bus_clk = devm_clk_get(dev, "bus");
414 if (IS_ERR(mixer->bus_clk)) {
415 dev_err(dev, "Couldn't get the mixer bus clock\n");
416 ret = PTR_ERR(mixer->bus_clk);
417 goto err_assert_reset;
418 }
419 clk_prepare_enable(mixer->bus_clk);
420
421 mixer->mod_clk = devm_clk_get(dev, "mod");
422 if (IS_ERR(mixer->mod_clk)) {
423 dev_err(dev, "Couldn't get the mixer module clock\n");
424 ret = PTR_ERR(mixer->mod_clk);
425 goto err_disable_bus_clk;
426 }
427
428 /*
429 * It seems that we need to enforce that rate for whatever
430 * reason for the mixer to be functional. Make sure it's the
431 * case.
432 */
433 if (mixer->cfg->mod_rate)
434 clk_set_rate(mixer->mod_clk, mixer->cfg->mod_rate);
435
436 clk_prepare_enable(mixer->mod_clk);
437
438 list_add_tail(&mixer->engine.list, &drv->engine_list);
439
440 base = sun8i_blender_base(mixer);
441
442 /* Reset registers and disable unused sub-engines */
443 if (mixer->cfg->is_de3) {
444 for (i = 0; i < DE3_MIXER_UNIT_SIZE; i += 4)
445 regmap_write(mixer->engine.regs, i, 0);
446
447 regmap_write(mixer->engine.regs, SUN50I_MIXER_FCE_EN, 0);
448 regmap_write(mixer->engine.regs, SUN50I_MIXER_PEAK_EN, 0);
449 regmap_write(mixer->engine.regs, SUN50I_MIXER_LCTI_EN, 0);
450 regmap_write(mixer->engine.regs, SUN50I_MIXER_BLS_EN, 0);
451 regmap_write(mixer->engine.regs, SUN50I_MIXER_FCC_EN, 0);
452 regmap_write(mixer->engine.regs, SUN50I_MIXER_DNS_EN, 0);
453 regmap_write(mixer->engine.regs, SUN50I_MIXER_DRC_EN, 0);
454 regmap_write(mixer->engine.regs, SUN50I_MIXER_FMT_EN, 0);
455 regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC0_EN, 0);
456 regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC1_EN, 0);
457 } else {
458 for (i = 0; i < DE2_MIXER_UNIT_SIZE; i += 4)
459 regmap_write(mixer->engine.regs, i, 0);
460
461 regmap_write(mixer->engine.regs, SUN8I_MIXER_FCE_EN, 0);
462 regmap_write(mixer->engine.regs, SUN8I_MIXER_BWS_EN, 0);
463 regmap_write(mixer->engine.regs, SUN8I_MIXER_LTI_EN, 0);
464 regmap_write(mixer->engine.regs, SUN8I_MIXER_PEAK_EN, 0);
465 regmap_write(mixer->engine.regs, SUN8I_MIXER_ASE_EN, 0);
466 regmap_write(mixer->engine.regs, SUN8I_MIXER_FCC_EN, 0);
467 regmap_write(mixer->engine.regs, SUN8I_MIXER_DCSC_EN, 0);
468 }
469
470 /* Enable the mixer */
471 regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL,
472 SUN8I_MIXER_GLOBAL_CTL_RT_EN);
473
474 /* Set background color to black */
475 regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base),
476 SUN8I_MIXER_BLEND_COLOR_BLACK);
477
478 /*
479 * Set fill color of bottom plane to black. Generally not needed
480 * except when VI plane is at bottom (zpos = 0) and enabled.
481 */
482 regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
483 SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0));
484 regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0),
485 SUN8I_MIXER_BLEND_COLOR_BLACK);
486
487 plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num;
488 for (i = 0; i < plane_cnt; i++)
489 regmap_write(mixer->engine.regs,
490 SUN8I_MIXER_BLEND_MODE(base, i),
491 SUN8I_MIXER_BLEND_MODE_DEF);
492
493 regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
494 SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0);
495
496 return 0;
497
498err_disable_bus_clk:
499 clk_disable_unprepare(mixer->bus_clk);
500err_assert_reset:
501 reset_control_assert(mixer->reset);
502 return ret;
503}
504
505static void sun8i_mixer_unbind(struct device *dev, struct device *master,
506 void *data)
507{
508 struct sun8i_mixer *mixer = dev_get_drvdata(dev);
509
510 list_del(&mixer->engine.list);
511
512 clk_disable_unprepare(mixer->mod_clk);
513 clk_disable_unprepare(mixer->bus_clk);
514 reset_control_assert(mixer->reset);
515}
516
517static const struct component_ops sun8i_mixer_ops = {
518 .bind = sun8i_mixer_bind,
519 .unbind = sun8i_mixer_unbind,
520};
521
522static int sun8i_mixer_probe(struct platform_device *pdev)
523{
524 return component_add(&pdev->dev, &sun8i_mixer_ops);
525}
526
527static int sun8i_mixer_remove(struct platform_device *pdev)
528{
529 component_del(&pdev->dev, &sun8i_mixer_ops);
530
531 return 0;
532}
533
534static const struct sun8i_mixer_cfg sun8i_a83t_mixer0_cfg = {
535 .ccsc = 0,
536 .scaler_mask = 0xf,
537 .scanline_yuv = 2048,
538 .ui_num = 3,
539 .vi_num = 1,
540};
541
542static const struct sun8i_mixer_cfg sun8i_a83t_mixer1_cfg = {
543 .ccsc = 1,
544 .scaler_mask = 0x3,
545 .scanline_yuv = 2048,
546 .ui_num = 1,
547 .vi_num = 1,
548};
549
550static const struct sun8i_mixer_cfg sun8i_h3_mixer0_cfg = {
551 .ccsc = 0,
552 .mod_rate = 432000000,
553 .scaler_mask = 0xf,
554 .scanline_yuv = 2048,
555 .ui_num = 3,
556 .vi_num = 1,
557};
558
559static const struct sun8i_mixer_cfg sun8i_r40_mixer0_cfg = {
560 .ccsc = 0,
561 .mod_rate = 297000000,
562 .scaler_mask = 0xf,
563 .scanline_yuv = 2048,
564 .ui_num = 3,
565 .vi_num = 1,
566};
567
568static const struct sun8i_mixer_cfg sun8i_r40_mixer1_cfg = {
569 .ccsc = 1,
570 .mod_rate = 297000000,
571 .scaler_mask = 0x3,
572 .scanline_yuv = 2048,
573 .ui_num = 1,
574 .vi_num = 1,
575};
576
577static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = {
578 .vi_num = 2,
579 .ui_num = 1,
580 .scaler_mask = 0x3,
581 .scanline_yuv = 2048,
582 .ccsc = 0,
583 .mod_rate = 150000000,
584};
585
586static const struct sun8i_mixer_cfg sun50i_a64_mixer0_cfg = {
587 .ccsc = 0,
588 .mod_rate = 297000000,
589 .scaler_mask = 0xf,
590 .scanline_yuv = 4096,
591 .ui_num = 3,
592 .vi_num = 1,
593};
594
595static const struct sun8i_mixer_cfg sun50i_a64_mixer1_cfg = {
596 .ccsc = 1,
597 .mod_rate = 297000000,
598 .scaler_mask = 0x3,
599 .scanline_yuv = 2048,
600 .ui_num = 1,
601 .vi_num = 1,
602};
603
604static const struct sun8i_mixer_cfg sun50i_h6_mixer0_cfg = {
605 .ccsc = 0,
606 .is_de3 = true,
607 .mod_rate = 600000000,
608 .scaler_mask = 0xf,
609 .scanline_yuv = 4096,
610 .ui_num = 3,
611 .vi_num = 1,
612};
613
614static const struct of_device_id sun8i_mixer_of_table[] = {
615 {
616 .compatible = "allwinner,sun8i-a83t-de2-mixer-0",
617 .data = &sun8i_a83t_mixer0_cfg,
618 },
619 {
620 .compatible = "allwinner,sun8i-a83t-de2-mixer-1",
621 .data = &sun8i_a83t_mixer1_cfg,
622 },
623 {
624 .compatible = "allwinner,sun8i-h3-de2-mixer-0",
625 .data = &sun8i_h3_mixer0_cfg,
626 },
627 {
628 .compatible = "allwinner,sun8i-r40-de2-mixer-0",
629 .data = &sun8i_r40_mixer0_cfg,
630 },
631 {
632 .compatible = "allwinner,sun8i-r40-de2-mixer-1",
633 .data = &sun8i_r40_mixer1_cfg,
634 },
635 {
636 .compatible = "allwinner,sun8i-v3s-de2-mixer",
637 .data = &sun8i_v3s_mixer_cfg,
638 },
639 {
640 .compatible = "allwinner,sun50i-a64-de2-mixer-0",
641 .data = &sun50i_a64_mixer0_cfg,
642 },
643 {
644 .compatible = "allwinner,sun50i-a64-de2-mixer-1",
645 .data = &sun50i_a64_mixer1_cfg,
646 },
647 {
648 .compatible = "allwinner,sun50i-h6-de3-mixer-0",
649 .data = &sun50i_h6_mixer0_cfg,
650 },
651 { }
652};
653MODULE_DEVICE_TABLE(of, sun8i_mixer_of_table);
654
655static struct platform_driver sun8i_mixer_platform_driver = {
656 .probe = sun8i_mixer_probe,
657 .remove = sun8i_mixer_remove,
658 .driver = {
659 .name = "sun8i-mixer",
660 .of_match_table = sun8i_mixer_of_table,
661 },
662};
663module_platform_driver(sun8i_mixer_platform_driver);
664
665MODULE_AUTHOR("Icenowy Zheng <icenowy@aosc.io>");
666MODULE_DESCRIPTION("Allwinner DE2 Mixer driver");
667MODULE_LICENSE("GPL");