1 // SPDX-License-Identifier: GPL-2.0-or-later
11 #include <linux/dma-mapping.h>
248 	return -EINVAL;  in sun8i_mixer_drm_format_to_hw()
255 	regmap_write(engine->regs, SUN8I_MIXER_GLOBAL_DBUFF,  in sun8i_mixer_commit()
263 	struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);  in sun8i_layers_init()  local
266 	planes = devm_kcalloc(drm->dev,  in sun8i_layers_init()
267 			      mixer->cfg->vi_num + mixer->cfg->ui_num + 1,  in sun8i_layers_init()
270 		return ERR_PTR(-ENOMEM);  in sun8i_layers_init()
272 	for (i = 0; i < mixer->cfg->vi_num; i++) {  in sun8i_layers_init()
275 		layer = sun8i_vi_layer_init_one(drm, mixer, i);  in sun8i_layers_init()
277 			dev_err(drm->dev,  in sun8i_layers_init()
282 		planes[i] = &layer->plane;  in sun8i_layers_init()
285 	for (i = 0; i < mixer->cfg->ui_num; i++) {  in sun8i_layers_init()
288 		layer = sun8i_ui_layer_init_one(drm, mixer, i);  in sun8i_layers_init()
290 			dev_err(drm->dev, "Couldn't initialize %s plane\n",  in sun8i_layers_init()
295 		planes[mixer->cfg->vi_num + i] = &layer->plane;  in sun8i_layers_init()
319 	ep = of_graph_get_endpoint_by_regs(node, 1, -1);  in sun8i_mixer_of_get_id()
321 		return -EINVAL;  in sun8i_mixer_of_get_id()
326 		return -EINVAL;  in sun8i_mixer_of_get_id()
338 	struct sun4i_drv *drv = drm->dev_private;  in sun8i_mixer_bind()
339 	struct sun8i_mixer *mixer;  in sun8i_mixer_bind()  local
347 	 * The mixer uses single 32-bit register to store memory  in sun8i_mixer_bind()
348 	 * addresses, so that it cannot deal with 64-bit memory  in sun8i_mixer_bind()
350 	 * Restrict the DMA mask so that the mixer won't be  in sun8i_mixer_bind()
355 		dev_err(dev, "Cannot do 32-bit DMA.\n");  in sun8i_mixer_bind()
359 	mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL);  in sun8i_mixer_bind()
360 	if (!mixer)  in sun8i_mixer_bind()
361 		return -ENOMEM;  in sun8i_mixer_bind()
362 	dev_set_drvdata(dev, mixer);  in sun8i_mixer_bind()
363 	mixer->engine.ops = &sun8i_engine_ops;  in sun8i_mixer_bind()
364 	mixer->engine.node = dev->of_node;  in sun8i_mixer_bind()
366 	if (of_find_property(dev->of_node, "iommus", NULL)) {  in sun8i_mixer_bind()
371 		 * DRM doesn't do per-device allocation either, so we  in sun8i_mixer_bind()
374 		ret = of_dma_configure(drm->dev, dev->of_node, true);  in sun8i_mixer_bind()
382 	 * mixer id but work nevertheless because matching between  in sun8i_mixer_bind()
383 	 * TCON and mixer is done by comparing node pointers (old  in sun8i_mixer_bind()
387 	mixer->engine.id = sun8i_mixer_of_get_id(dev->of_node);  in sun8i_mixer_bind()
389 	mixer->cfg = of_device_get_match_data(dev);  in sun8i_mixer_bind()
390 	if (!mixer->cfg)  in sun8i_mixer_bind()
391 		return -EINVAL;  in sun8i_mixer_bind()
398 	mixer->engine.regs = devm_regmap_init_mmio(dev, regs,  in sun8i_mixer_bind()
400 	if (IS_ERR(mixer->engine.regs)) {  in sun8i_mixer_bind()
401 		dev_err(dev, "Couldn't create the mixer regmap\n");  in sun8i_mixer_bind()
402 		return PTR_ERR(mixer->engine.regs);  in sun8i_mixer_bind()
405 	mixer->reset = devm_reset_control_get(dev, NULL);  in sun8i_mixer_bind()
406 	if (IS_ERR(mixer->reset)) {  in sun8i_mixer_bind()
408 		return PTR_ERR(mixer->reset);  in sun8i_mixer_bind()
411 	ret = reset_control_deassert(mixer->reset);  in sun8i_mixer_bind()
417 	mixer->bus_clk = devm_clk_get(dev, "bus");  in sun8i_mixer_bind()
418 	if (IS_ERR(mixer->bus_clk)) {  in sun8i_mixer_bind()
419 		dev_err(dev, "Couldn't get the mixer bus clock\n");  in sun8i_mixer_bind()
420 		ret = PTR_ERR(mixer->bus_clk);  in sun8i_mixer_bind()
423 	clk_prepare_enable(mixer->bus_clk);  in sun8i_mixer_bind()
425 	mixer->mod_clk = devm_clk_get(dev, "mod");  in sun8i_mixer_bind()
426 	if (IS_ERR(mixer->mod_clk)) {  in sun8i_mixer_bind()
427 		dev_err(dev, "Couldn't get the mixer module clock\n");  in sun8i_mixer_bind()
428 		ret = PTR_ERR(mixer->mod_clk);  in sun8i_mixer_bind()
434 	 * reason for the mixer to be functional. Make sure it's the  in sun8i_mixer_bind()
437 	if (mixer->cfg->mod_rate)  in sun8i_mixer_bind()
438 		clk_set_rate(mixer->mod_clk, mixer->cfg->mod_rate);  in sun8i_mixer_bind()
440 	clk_prepare_enable(mixer->mod_clk);  in sun8i_mixer_bind()
442 	list_add_tail(&mixer->engine.list, &drv->engine_list);  in sun8i_mixer_bind()
444 	base = sun8i_blender_base(mixer);  in sun8i_mixer_bind()
446 	/* Reset registers and disable unused sub-engines */  in sun8i_mixer_bind()
447 	if (mixer->cfg->is_de3) {  in sun8i_mixer_bind()
449 			regmap_write(mixer->engine.regs, i, 0);  in sun8i_mixer_bind()
451 		regmap_write(mixer->engine.regs, SUN50I_MIXER_FCE_EN, 0);  in sun8i_mixer_bind()
452 		regmap_write(mixer->engine.regs, SUN50I_MIXER_PEAK_EN, 0);  in sun8i_mixer_bind()
453 		regmap_write(mixer->engine.regs, SUN50I_MIXER_LCTI_EN, 0);  in sun8i_mixer_bind()
454 		regmap_write(mixer->engine.regs, SUN50I_MIXER_BLS_EN, 0);  in sun8i_mixer_bind()
455 		regmap_write(mixer->engine.regs, SUN50I_MIXER_FCC_EN, 0);  in sun8i_mixer_bind()
456 		regmap_write(mixer->engine.regs, SUN50I_MIXER_DNS_EN, 0);  in sun8i_mixer_bind()
457 		regmap_write(mixer->engine.regs, SUN50I_MIXER_DRC_EN, 0);  in sun8i_mixer_bind()
458 		regmap_write(mixer->engine.regs, SUN50I_MIXER_FMT_EN, 0);  in sun8i_mixer_bind()
459 		regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC0_EN, 0);  in sun8i_mixer_bind()
460 		regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC1_EN, 0);  in sun8i_mixer_bind()
463 			regmap_write(mixer->engine.regs, i, 0);  in sun8i_mixer_bind()
465 		regmap_write(mixer->engine.regs, SUN8I_MIXER_FCE_EN, 0);  in sun8i_mixer_bind()
466 		regmap_write(mixer->engine.regs, SUN8I_MIXER_BWS_EN, 0);  in sun8i_mixer_bind()
467 		regmap_write(mixer->engine.regs, SUN8I_MIXER_LTI_EN, 0);  in sun8i_mixer_bind()
468 		regmap_write(mixer->engine.regs, SUN8I_MIXER_PEAK_EN, 0);  in sun8i_mixer_bind()
469 		regmap_write(mixer->engine.regs, SUN8I_MIXER_ASE_EN, 0);  in sun8i_mixer_bind()
470 		regmap_write(mixer->engine.regs, SUN8I_MIXER_FCC_EN, 0);  in sun8i_mixer_bind()
471 		regmap_write(mixer->engine.regs, SUN8I_MIXER_DCSC_EN, 0);  in sun8i_mixer_bind()
474 	/* Enable the mixer */  in sun8i_mixer_bind()
475 	regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL,  in sun8i_mixer_bind()
479 	regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base),  in sun8i_mixer_bind()
486 	regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),  in sun8i_mixer_bind()
488 	regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0),  in sun8i_mixer_bind()
491 	plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num;  in sun8i_mixer_bind()
493 		regmap_write(mixer->engine.regs,  in sun8i_mixer_bind()
497 	regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),  in sun8i_mixer_bind()
503 	clk_disable_unprepare(mixer->bus_clk);  in sun8i_mixer_bind()
505 	reset_control_assert(mixer->reset);  in sun8i_mixer_bind()
512 	struct sun8i_mixer *mixer = dev_get_drvdata(dev);  in sun8i_mixer_unbind()  local
514 	list_del(&mixer->engine.list);  in sun8i_mixer_unbind()
516 	clk_disable_unprepare(mixer->mod_clk);  in sun8i_mixer_unbind()
517 	clk_disable_unprepare(mixer->bus_clk);  in sun8i_mixer_unbind()
518 	reset_control_assert(mixer->reset);  in sun8i_mixer_unbind()
528 	return component_add(&pdev->dev, &sun8i_mixer_ops);  in sun8i_mixer_probe()
533 	component_del(&pdev->dev, &sun8i_mixer_ops);  in sun8i_mixer_remove()
620 		.compatible = "allwinner,sun8i-a83t-de2-mixer-0",
624 		.compatible = "allwinner,sun8i-a83t-de2-mixer-1",
628 		.compatible = "allwinner,sun8i-h3-de2-mixer-0",
632 		.compatible = "allwinner,sun8i-r40-de2-mixer-0",
636 		.compatible = "allwinner,sun8i-r40-de2-mixer-1",
640 		.compatible = "allwinner,sun8i-v3s-de2-mixer",
644 		.compatible = "allwinner,sun50i-a64-de2-mixer-0",
648 		.compatible = "allwinner,sun50i-a64-de2-mixer-1",
652 		.compatible = "allwinner,sun50i-h6-de3-mixer-0",
663 		.name		= "sun8i-mixer",
670 MODULE_DESCRIPTION("Allwinner DE2 Mixer driver");