1 // SPDX-License-Identifier: GPL-2.0-only
11 #include <linux/media-bus-format.h>
15 #include <linux/pinctrl/consumer.h>
79 	struct pinctrl *pinctrl;  member
118  * struct mtk_dpi_conf - Configuration of mediatek dpi.
159 	u32 tmp = readl(dpi->regs + offset) & ~mask;  in mtk_dpi_mask()
162 	writel(tmp, dpi->regs + offset);  in mtk_dpi_mask()
183 	mtk_dpi_mask(dpi, DPI_TGEN_HWIDTH, sync->sync_width << HPW,  in mtk_dpi_config_hsync()
184 		     dpi->conf->dimension_mask << HPW);  in mtk_dpi_config_hsync()
185 	mtk_dpi_mask(dpi, DPI_TGEN_HPORCH, sync->back_porch << HBP,  in mtk_dpi_config_hsync()
186 		     dpi->conf->dimension_mask << HBP);  in mtk_dpi_config_hsync()
187 	mtk_dpi_mask(dpi, DPI_TGEN_HPORCH, sync->front_porch << HFP,  in mtk_dpi_config_hsync()
188 		     dpi->conf->dimension_mask << HFP);  in mtk_dpi_config_hsync()
196 		     sync->shift_half_line << VSYNC_HALF_LINE_SHIFT,  in mtk_dpi_config_vsync()
199 		     sync->sync_width << VSYNC_WIDTH_SHIFT,  in mtk_dpi_config_vsync()
200 		     dpi->conf->dimension_mask << VSYNC_WIDTH_SHIFT);  in mtk_dpi_config_vsync()
202 		     sync->back_porch << VSYNC_BACK_PORCH_SHIFT,  in mtk_dpi_config_vsync()
203 		     dpi->conf->dimension_mask << VSYNC_BACK_PORCH_SHIFT);  in mtk_dpi_config_vsync()
205 		     sync->front_porch << VSYNC_FRONT_PORCH_SHIFT,  in mtk_dpi_config_vsync()
206 		     dpi->conf->dimension_mask << VSYNC_FRONT_PORCH_SHIFT);  in mtk_dpi_config_vsync()
243 	pol = (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) |  in mtk_dpi_config_pol()
244 	      (dpi_pol->vsync_pol == MTK_DPI_POLARITY_RISING ? 0 : VSYNC_POL);  in mtk_dpi_config_pol()
245 	if (dpi->conf->is_ck_de_pol) {  in mtk_dpi_config_pol()
247 		pol |= (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ?  in mtk_dpi_config_pol()
249 		       (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ?  in mtk_dpi_config_pol()
269 		     dpi->conf->hvsize_mask << HSIZE);  in mtk_dpi_config_fb_size()
271 		     dpi->conf->hvsize_mask << VSIZE);  in mtk_dpi_config_fb_size()
278 	if (drm_default_rgb_quant_range(&dpi->mode) ==  in mtk_dpi_config_channel_limit()
386 		     val << dpi->conf->channel_swap_shift,  in mtk_dpi_config_channel_swap()
387 		     CH_SWAP_MASK << dpi->conf->channel_swap_shift);  in mtk_dpi_config_channel_swap()
392 	mtk_dpi_mask(dpi, DPI_CON, enable ? dpi->conf->yuv422_en_bit : 0,  in mtk_dpi_config_yuv422_enable()
393 		     dpi->conf->yuv422_en_bit);  in mtk_dpi_config_yuv422_enable()
398 	mtk_dpi_mask(dpi, DPI_CON, enable ? dpi->conf->csc_enable_bit : 0,  in mtk_dpi_config_csc_enable()
399 		     dpi->conf->csc_enable_bit);  in mtk_dpi_config_csc_enable()
409 	mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, H_FRE_2N, H_FRE_2N);  in mtk_dpi_config_2n_h_fre()
414 	if (dpi->conf->edge_sel_en)  in mtk_dpi_config_disable_edge()
415 		mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, 0, EDGE_SEL_EN);  in mtk_dpi_config_disable_edge()
431 		mtk_dpi_mask(dpi, DPI_MATRIX_SET, dpi->mode.hdisplay <= 720 ?  in mtk_dpi_config_color_format()
437 		if (dpi->conf->swap_input_support)  in mtk_dpi_config_color_format()
444 	if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||  in mtk_dpi_dual_edge()
445 	    (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE)) {  in mtk_dpi_dual_edge()
449 			     dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE ?  in mtk_dpi_dual_edge()
458 	if (WARN_ON(dpi->refcount == 0))  in mtk_dpi_power_off()
461 	if (--dpi->refcount != 0)  in mtk_dpi_power_off()
464 	if (dpi->pinctrl && dpi->pins_gpio)  in mtk_dpi_power_off()
465 		pinctrl_select_state(dpi->pinctrl, dpi->pins_gpio);  in mtk_dpi_power_off()
468 	clk_disable_unprepare(dpi->pixel_clk);  in mtk_dpi_power_off()
469 	clk_disable_unprepare(dpi->engine_clk);  in mtk_dpi_power_off()
476 	if (++dpi->refcount != 1)  in mtk_dpi_power_on()
479 	ret = clk_prepare_enable(dpi->engine_clk);  in mtk_dpi_power_on()
481 		dev_err(dpi->dev, "Failed to enable engine clock: %d\n", ret);  in mtk_dpi_power_on()
485 	ret = clk_prepare_enable(dpi->pixel_clk);  in mtk_dpi_power_on()
487 		dev_err(dpi->dev, "Failed to enable pixel clock: %d\n", ret);  in mtk_dpi_power_on()
491 	if (dpi->pinctrl && dpi->pins_dpi)  in mtk_dpi_power_on()
492 		pinctrl_select_state(dpi->pinctrl, dpi->pins_dpi);  in mtk_dpi_power_on()
497 	clk_disable_unprepare(dpi->engine_clk);  in mtk_dpi_power_on()
499 	dpi->refcount--;  in mtk_dpi_power_on()
517 	factor = dpi->conf->cal_factor(mode->clock);  in mtk_dpi_set_display_mode()
521 	dev_dbg(dpi->dev, "Want PLL %lu Hz, pixel clock %lu Hz\n",  in mtk_dpi_set_display_mode()
524 	clk_set_rate(dpi->tvd_clk, pll_rate);  in mtk_dpi_set_display_mode()
525 	pll_rate = clk_get_rate(dpi->tvd_clk);  in mtk_dpi_set_display_mode()
533 	vm.pixelclock /= dpi->conf->pixels_per_iter;  in mtk_dpi_set_display_mode()
535 	if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||  in mtk_dpi_set_display_mode()
536 	    (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE))  in mtk_dpi_set_display_mode()
537 		clk_set_rate(dpi->pixel_clk, vm.pixelclock * 2);  in mtk_dpi_set_display_mode()
539 		clk_set_rate(dpi->pixel_clk, vm.pixelclock);  in mtk_dpi_set_display_mode()
542 	vm.pixelclock = clk_get_rate(dpi->pixel_clk);  in mtk_dpi_set_display_mode()
544 	dev_dbg(dpi->dev, "Got  PLL %lu Hz, pixel clock %lu Hz\n",  in mtk_dpi_set_display_mode()
559 	hsync.sync_width = vm.hsync_len / dpi->conf->pixels_per_iter;  in mtk_dpi_set_display_mode()
560 	hsync.back_porch = vm.hback_porch / dpi->conf->pixels_per_iter;  in mtk_dpi_set_display_mode()
561 	hsync.front_porch = vm.hfront_porch / dpi->conf->pixels_per_iter;  in mtk_dpi_set_display_mode()
570 	    mode->flags & DRM_MODE_FLAG_3D_MASK) {  in mtk_dpi_set_display_mode()
577 		   !(mode->flags & DRM_MODE_FLAG_3D_MASK)) {  in mtk_dpi_set_display_mode()
581 		   mode->flags & DRM_MODE_FLAG_3D_MASK) {  in mtk_dpi_set_display_mode()
593 	mtk_dpi_config_3d(dpi, !!(mode->flags & DRM_MODE_FLAG_3D_MASK));  in mtk_dpi_set_display_mode()
602 	mtk_dpi_config_bit_num(dpi, dpi->bit_num);  in mtk_dpi_set_display_mode()
603 	mtk_dpi_config_channel_swap(dpi, dpi->channel_swap);  in mtk_dpi_set_display_mode()
604 	mtk_dpi_config_color_format(dpi, dpi->color_format);  in mtk_dpi_set_display_mode()
605 	if (dpi->conf->support_direct_pin) {  in mtk_dpi_set_display_mode()
606 		mtk_dpi_config_yc_map(dpi, dpi->yc_map);  in mtk_dpi_set_display_mode()
611 	if (dpi->conf->input_2pixel) {  in mtk_dpi_set_display_mode()
631 	if (!dpi->conf->output_fmts) {  in mtk_dpi_bridge_atomic_get_output_bus_fmts()
632 		dev_err(dpi->dev, "output_fmts should not be null\n");  in mtk_dpi_bridge_atomic_get_output_bus_fmts()
636 	output_fmts = kcalloc(dpi->conf->num_output_fmts, sizeof(*output_fmts),  in mtk_dpi_bridge_atomic_get_output_bus_fmts()
641 	*num_output_fmts = dpi->conf->num_output_fmts;  in mtk_dpi_bridge_atomic_get_output_bus_fmts()
643 	memcpy(output_fmts, dpi->conf->output_fmts,  in mtk_dpi_bridge_atomic_get_output_bus_fmts()
644 	       sizeof(*output_fmts) * dpi->conf->num_output_fmts);  in mtk_dpi_bridge_atomic_get_output_bus_fmts()
679 	out_bus_format = bridge_state->output_bus_cfg.format;  in mtk_dpi_bridge_atomic_check()
682 		if (dpi->conf->num_output_fmts)  in mtk_dpi_bridge_atomic_check()
683 			out_bus_format = dpi->conf->output_fmts[0];  in mtk_dpi_bridge_atomic_check()
685 	dev_dbg(dpi->dev, "input format 0x%04x, output format 0x%04x\n",  in mtk_dpi_bridge_atomic_check()
686 		bridge_state->input_bus_cfg.format,  in mtk_dpi_bridge_atomic_check()
687 		bridge_state->output_bus_cfg.format);  in mtk_dpi_bridge_atomic_check()
689 	dpi->output_fmt = out_bus_format;  in mtk_dpi_bridge_atomic_check()
690 	dpi->bit_num = MTK_DPI_OUT_BIT_NUM_8BITS;  in mtk_dpi_bridge_atomic_check()
691 	dpi->channel_swap = MTK_DPI_OUT_CHANNEL_SWAP_RGB;  in mtk_dpi_bridge_atomic_check()
692 	dpi->yc_map = MTK_DPI_OUT_YC_MAP_RGB;  in mtk_dpi_bridge_atomic_check()
694 		dpi->color_format = MTK_DPI_COLOR_FORMAT_YCBCR_422;  in mtk_dpi_bridge_atomic_check()
696 		dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB;  in mtk_dpi_bridge_atomic_check()
706 	return drm_bridge_attach(bridge->encoder, dpi->next_bridge,  in mtk_dpi_bridge_attach()
707 				 &dpi->bridge, flags);  in mtk_dpi_bridge_attach()
716 	drm_mode_copy(&dpi->mode, adjusted_mode);  in mtk_dpi_bridge_mode_set()
731 	mtk_dpi_set_display_mode(dpi, &dpi->mode);  in mtk_dpi_bridge_enable()
742 	if (mode->clock > dpi->conf->max_clock_khz)  in mtk_dpi_bridge_mode_valid()
782 	ret = drm_simple_encoder_init(drm_dev, &dpi->encoder,  in mtk_dpi_bind()
789 	dpi->encoder.possible_crtcs = mtk_drm_find_possible_crtc_by_comp(drm_dev, dpi->dev);  in mtk_dpi_bind()
791 	ret = drm_bridge_attach(&dpi->encoder, &dpi->bridge, NULL,  in mtk_dpi_bind()
796 	dpi->connector = drm_bridge_connector_init(drm_dev, &dpi->encoder);  in mtk_dpi_bind()
797 	if (IS_ERR(dpi->connector)) {  in mtk_dpi_bind()
799 		ret = PTR_ERR(dpi->connector);  in mtk_dpi_bind()
802 	drm_connector_attach_encoder(dpi->connector, &dpi->encoder);  in mtk_dpi_bind()
807 	drm_encoder_cleanup(&dpi->encoder);  in mtk_dpi_bind()
816 	drm_encoder_cleanup(&dpi->encoder);  in mtk_dpi_unbind()
965 	struct device *dev = &pdev->dev;  in mtk_dpi_probe()
972 		return -ENOMEM;  in mtk_dpi_probe()
974 	dpi->dev = dev;  in mtk_dpi_probe()
975 	dpi->conf = (struct mtk_dpi_conf *)of_device_get_match_data(dev);  in mtk_dpi_probe()
976 	dpi->output_fmt = MEDIA_BUS_FMT_RGB888_1X24;  in mtk_dpi_probe()
978 	dpi->pinctrl = devm_pinctrl_get(&pdev->dev);  in mtk_dpi_probe()
979 	if (IS_ERR(dpi->pinctrl)) {  in mtk_dpi_probe()
980 		dpi->pinctrl = NULL;  in mtk_dpi_probe()
981 		dev_dbg(&pdev->dev, "Cannot find pinctrl!\n");  in mtk_dpi_probe()
983 	if (dpi->pinctrl) {  in mtk_dpi_probe()
984 		dpi->pins_gpio = pinctrl_lookup_state(dpi->pinctrl, "sleep");  in mtk_dpi_probe()
985 		if (IS_ERR(dpi->pins_gpio)) {  in mtk_dpi_probe()
986 			dpi->pins_gpio = NULL;  in mtk_dpi_probe()
987 			dev_dbg(&pdev->dev, "Cannot find pinctrl idle!\n");  in mtk_dpi_probe()
989 		if (dpi->pins_gpio)  in mtk_dpi_probe()
990 			pinctrl_select_state(dpi->pinctrl, dpi->pins_gpio);  in mtk_dpi_probe()
992 		dpi->pins_dpi = pinctrl_lookup_state(dpi->pinctrl, "default");  in mtk_dpi_probe()
993 		if (IS_ERR(dpi->pins_dpi)) {  in mtk_dpi_probe()
994 			dpi->pins_dpi = NULL;  in mtk_dpi_probe()
995 			dev_dbg(&pdev->dev, "Cannot find pinctrl active!\n");  in mtk_dpi_probe()
999 	dpi->regs = devm_ioremap_resource(dev, mem);  in mtk_dpi_probe()
1000 	if (IS_ERR(dpi->regs)) {  in mtk_dpi_probe()
1001 		ret = PTR_ERR(dpi->regs);  in mtk_dpi_probe()
1006 	dpi->engine_clk = devm_clk_get(dev, "engine");  in mtk_dpi_probe()
1007 	if (IS_ERR(dpi->engine_clk)) {  in mtk_dpi_probe()
1008 		ret = PTR_ERR(dpi->engine_clk);  in mtk_dpi_probe()
1009 		if (ret != -EPROBE_DEFER)  in mtk_dpi_probe()
1015 	dpi->pixel_clk = devm_clk_get(dev, "pixel");  in mtk_dpi_probe()
1016 	if (IS_ERR(dpi->pixel_clk)) {  in mtk_dpi_probe()
1017 		ret = PTR_ERR(dpi->pixel_clk);  in mtk_dpi_probe()
1018 		if (ret != -EPROBE_DEFER)  in mtk_dpi_probe()
1024 	dpi->tvd_clk = devm_clk_get(dev, "pll");  in mtk_dpi_probe()
1025 	if (IS_ERR(dpi->tvd_clk)) {  in mtk_dpi_probe()
1026 		ret = PTR_ERR(dpi->tvd_clk);  in mtk_dpi_probe()
1027 		if (ret != -EPROBE_DEFER)  in mtk_dpi_probe()
1033 	dpi->irq = platform_get_irq(pdev, 0);  in mtk_dpi_probe()
1034 	if (dpi->irq <= 0)  in mtk_dpi_probe()
1035 		return -EINVAL;  in mtk_dpi_probe()
1037 	ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,  in mtk_dpi_probe()
1038 					  NULL, &dpi->next_bridge);  in mtk_dpi_probe()
1042 	dev_info(dev, "Found bridge node: %pOF\n", dpi->next_bridge->of_node);  in mtk_dpi_probe()
1046 	dpi->bridge.funcs = &mtk_dpi_bridge_funcs;  in mtk_dpi_probe()
1047 	dpi->bridge.of_node = dev->of_node;  in mtk_dpi_probe()
1048 	dpi->bridge.type = DRM_MODE_CONNECTOR_DPI;  in mtk_dpi_probe()
1050 	drm_bridge_add(&dpi->bridge);  in mtk_dpi_probe()
1054 		drm_bridge_remove(&dpi->bridge);  in mtk_dpi_probe()
1066 	component_del(&pdev->dev, &mtk_dpi_component_ops);  in mtk_dpi_remove()
1067 	drm_bridge_remove(&dpi->bridge);  in mtk_dpi_remove()
1073 	{ .compatible = "mediatek,mt2701-dpi",
1076 	{ .compatible = "mediatek,mt8173-dpi",
1079 	{ .compatible = "mediatek,mt8183-dpi",
1082 	{ .compatible = "mediatek,mt8192-dpi",
1085 	{ .compatible = "mediatek,mt8195-dp-intf",
1096 		.name = "mediatek-dpi",