1 // SPDX-License-Identifier: GPL-2.0-only
5  *      Mark Yao <mark.yao@rock-chips.com>
6  *      Sandy Huang <hjc@rock-chips.com>
39  * struct rockchip_lvds_soc_data - rockchip lvds Soc private data
56 	int format; /* vesa or jeida format */
80 	writel_relaxed(val, lvds->regs + offset);  in rk3288_writel()
81 	if (lvds->output == DISPLAY_OUTPUT_LVDS)  in rk3288_writel()
83 	writel_relaxed(val, lvds->regs + offset + RK3288_LVDS_CH1_OFFSET);  in rk3288_writel()
88 	if (strncmp(s, "jeida-18", 8) == 0)  in rockchip_lvds_name_to_format()
90 	else if (strncmp(s, "jeida-24", 8) == 0)  in rockchip_lvds_name_to_format()
92 	else if (strncmp(s, "vesa-24", 7) == 0)  in rockchip_lvds_name_to_format()
95 	return -EINVAL;  in rockchip_lvds_name_to_format()
107 	return -EINVAL;  in rockchip_lvds_name_to_output()
121 	struct drm_panel *panel = lvds->panel;  in rockchip_lvds_connector_get_modes()
138 	s->output_mode = ROCKCHIP_OUT_MODE_P888;  in rockchip_lvds_encoder_atomic_check()
139 	s->output_type = DRM_MODE_CONNECTOR_LVDS;  in rockchip_lvds_encoder_atomic_check()
149 	ret = clk_enable(lvds->pclk);  in rk3288_lvds_poweron()
151 		DRM_DEV_ERROR(lvds->dev, "failed to enable lvds pclk %d\n", ret);  in rk3288_lvds_poweron()
154 	ret = pm_runtime_resume_and_get(lvds->dev);  in rk3288_lvds_poweron()
156 		DRM_DEV_ERROR(lvds->dev, "failed to get pm runtime: %d\n", ret);  in rk3288_lvds_poweron()
157 		clk_disable(lvds->pclk);  in rk3288_lvds_poweron()
163 	if (lvds->output == DISPLAY_OUTPUT_RGB) {  in rk3288_lvds_poweron()
232 	ret = regmap_write(lvds->grf, RK3288_LVDS_GRF_SOC_CON7, val);  in rk3288_lvds_poweroff()
234 		DRM_DEV_ERROR(lvds->dev, "Could not write to GRF: %d\n", ret);  in rk3288_lvds_poweroff()
236 	pm_runtime_put(lvds->dev);  in rk3288_lvds_poweroff()
237 	clk_disable(lvds->pclk);  in rk3288_lvds_poweroff()
244 	u8 pin_hsync = (mode->flags & DRM_MODE_FLAG_PHSYNC) ? 1 : 0;  in rk3288_lvds_grf_config()
245 	u8 pin_dclk = (mode->flags & DRM_MODE_FLAG_PCSYNC) ? 1 : 0;  in rk3288_lvds_grf_config()
250 	if (lvds->output == DISPLAY_OUTPUT_RGB)  in rk3288_lvds_grf_config()
251 		if (lvds->pins && !IS_ERR(lvds->pins->default_state))  in rk3288_lvds_grf_config()
252 			pinctrl_select_state(lvds->pins->p,  in rk3288_lvds_grf_config()
253 					     lvds->pins->default_state);  in rk3288_lvds_grf_config()
254 	val = lvds->format | LVDS_CH0_EN;  in rk3288_lvds_grf_config()
255 	if (lvds->output == DISPLAY_OUTPUT_RGB)  in rk3288_lvds_grf_config()
257 	else if (lvds->output == DISPLAY_OUTPUT_DUAL_LVDS)  in rk3288_lvds_grf_config()
260 	if ((mode->htotal - mode->hsync_start) & 0x01)  in rk3288_lvds_grf_config()
265 	ret = regmap_write(lvds->grf, RK3288_LVDS_GRF_SOC_CON7, val);  in rk3288_lvds_grf_config()
267 		DRM_DEV_ERROR(lvds->dev, "Could not write to GRF: %d\n", ret);  in rk3288_lvds_grf_config()
278 	ret = drm_of_encoder_active_endpoint_id(lvds->dev->of_node, encoder);  in rk3288_lvds_set_vop_source()
286 	ret = regmap_write(lvds->grf, RK3288_LVDS_GRF_SOC_CON6, val);  in rk3288_lvds_set_vop_source()
296 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;  in rk3288_lvds_encoder_enable()
299 	drm_panel_prepare(lvds->panel);  in rk3288_lvds_encoder_enable()
303 		DRM_DEV_ERROR(lvds->dev, "failed to power on LVDS: %d\n", ret);  in rk3288_lvds_encoder_enable()
304 		drm_panel_unprepare(lvds->panel);  in rk3288_lvds_encoder_enable()
310 		DRM_DEV_ERROR(lvds->dev, "failed to configure LVDS: %d\n", ret);  in rk3288_lvds_encoder_enable()
311 		drm_panel_unprepare(lvds->panel);  in rk3288_lvds_encoder_enable()
317 		DRM_DEV_ERROR(lvds->dev, "failed to set VOP source: %d\n", ret);  in rk3288_lvds_encoder_enable()
318 		drm_panel_unprepare(lvds->panel);  in rk3288_lvds_encoder_enable()
322 	drm_panel_enable(lvds->panel);  in rk3288_lvds_encoder_enable()
329 	drm_panel_disable(lvds->panel);  in rk3288_lvds_encoder_disable()
331 	drm_panel_unprepare(lvds->panel);  in rk3288_lvds_encoder_disable()
338 	ret = pm_runtime_resume_and_get(lvds->dev);  in px30_lvds_poweron()
340 		DRM_DEV_ERROR(lvds->dev, "failed to get pm runtime: %d\n", ret);  in px30_lvds_poweron()
345 	ret = regmap_update_bits(lvds->grf, PX30_LVDS_GRF_PD_VO_CON1,  in px30_lvds_poweron()
349 		pm_runtime_put(lvds->dev);  in px30_lvds_poweron()
356 	regmap_update_bits(lvds->grf, PX30_LVDS_GRF_PD_VO_CON1,  in px30_lvds_poweroff()
360 	pm_runtime_put(lvds->dev);  in px30_lvds_poweroff()
368 	if (lvds->output != DISPLAY_OUTPUT_LVDS) {  in px30_lvds_grf_config()
369 		DRM_DEV_ERROR(lvds->dev, "Unsupported display output %d\n",  in px30_lvds_grf_config()
370 			      lvds->output);  in px30_lvds_grf_config()
371 		return -EINVAL;  in px30_lvds_grf_config()
375 	return regmap_update_bits(lvds->grf, PX30_LVDS_GRF_PD_VO_CON1,  in px30_lvds_grf_config()
376 				  PX30_LVDS_FORMAT(lvds->format),  in px30_lvds_grf_config()
377 				  PX30_LVDS_FORMAT(lvds->format));  in px30_lvds_grf_config()
385 	vop = drm_of_encoder_active_endpoint_id(lvds->dev->of_node, encoder);  in px30_lvds_set_vop_source()
389 	return regmap_update_bits(lvds->grf, PX30_LVDS_GRF_PD_VO_CON1,  in px30_lvds_set_vop_source()
397 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;  in px30_lvds_encoder_enable()
400 	drm_panel_prepare(lvds->panel);  in px30_lvds_encoder_enable()
404 		DRM_DEV_ERROR(lvds->dev, "failed to power on LVDS: %d\n", ret);  in px30_lvds_encoder_enable()
405 		drm_panel_unprepare(lvds->panel);  in px30_lvds_encoder_enable()
411 		DRM_DEV_ERROR(lvds->dev, "failed to configure LVDS: %d\n", ret);  in px30_lvds_encoder_enable()
412 		drm_panel_unprepare(lvds->panel);  in px30_lvds_encoder_enable()
418 		DRM_DEV_ERROR(lvds->dev, "failed to set VOP source: %d\n", ret);  in px30_lvds_encoder_enable()
419 		drm_panel_unprepare(lvds->panel);  in px30_lvds_encoder_enable()
423 	drm_panel_enable(lvds->panel);  in px30_lvds_encoder_enable()
430 	drm_panel_disable(lvds->panel);  in px30_lvds_encoder_disable()
432 	drm_panel_unprepare(lvds->panel);  in px30_lvds_encoder_disable()
454 	lvds->regs = devm_platform_ioremap_resource(pdev, 0);  in rk3288_lvds_probe()
455 	if (IS_ERR(lvds->regs))  in rk3288_lvds_probe()
456 		return PTR_ERR(lvds->regs);  in rk3288_lvds_probe()
458 	lvds->pclk = devm_clk_get(lvds->dev, "pclk_lvds");  in rk3288_lvds_probe()
459 	if (IS_ERR(lvds->pclk)) {  in rk3288_lvds_probe()
460 		DRM_DEV_ERROR(lvds->dev, "could not get pclk_lvds\n");  in rk3288_lvds_probe()
461 		return PTR_ERR(lvds->pclk);  in rk3288_lvds_probe()
464 	lvds->pins = devm_kzalloc(lvds->dev, sizeof(*lvds->pins),  in rk3288_lvds_probe()
466 	if (!lvds->pins)  in rk3288_lvds_probe()
467 		return -ENOMEM;  in rk3288_lvds_probe()
469 	lvds->pins->p = devm_pinctrl_get(lvds->dev);  in rk3288_lvds_probe()
470 	if (IS_ERR(lvds->pins->p)) {  in rk3288_lvds_probe()
471 		DRM_DEV_ERROR(lvds->dev, "no pinctrl handle\n");  in rk3288_lvds_probe()
472 		devm_kfree(lvds->dev, lvds->pins);  in rk3288_lvds_probe()
473 		lvds->pins = NULL;  in rk3288_lvds_probe()
475 		lvds->pins->default_state =  in rk3288_lvds_probe()
476 			pinctrl_lookup_state(lvds->pins->p, "lcdc");  in rk3288_lvds_probe()
477 		if (IS_ERR(lvds->pins->default_state)) {  in rk3288_lvds_probe()
478 			DRM_DEV_ERROR(lvds->dev, "no default pinctrl state\n");  in rk3288_lvds_probe()
479 			devm_kfree(lvds->dev, lvds->pins);  in rk3288_lvds_probe()
480 			lvds->pins = NULL;  in rk3288_lvds_probe()
484 	ret = clk_prepare(lvds->pclk);  in rk3288_lvds_probe()
486 		DRM_DEV_ERROR(lvds->dev, "failed to prepare pclk_lvds\n");  in rk3288_lvds_probe()
499 	ret =  regmap_update_bits(lvds->grf, PX30_LVDS_GRF_PD_VO_CON1,  in px30_lvds_probe()
506 	lvds->dphy = devm_phy_get(&pdev->dev, "dphy");  in px30_lvds_probe()
507 	if (IS_ERR(lvds->dphy))  in px30_lvds_probe()
508 		return PTR_ERR(lvds->dphy);  in px30_lvds_probe()
510 	ret = phy_init(lvds->dphy);  in px30_lvds_probe()
514 	ret = phy_set_mode(lvds->dphy, PHY_MODE_LVDS);  in px30_lvds_probe()
518 	return phy_power_on(lvds->dphy);  in px30_lvds_probe()
533 		.compatible = "rockchip,rk3288-lvds",
537 		.compatible = "rockchip,px30-lvds",
557 	lvds->drm_dev = drm_dev;  in rockchip_lvds_bind()
558 	port = of_graph_get_port_by_id(dev->of_node, 1);  in rockchip_lvds_bind()
562 		return -EINVAL;  in rockchip_lvds_bind()
567 		ret = drm_of_find_panel_or_bridge(dev->of_node, 1, endpoint_id,  in rockchip_lvds_bind()
568 						  &lvds->panel, &lvds->bridge);  in rockchip_lvds_bind()
576 		ret = -EINVAL;  in rockchip_lvds_bind()
580 		ret = -EPROBE_DEFER;  in rockchip_lvds_bind()
583 	if (lvds->panel)  in rockchip_lvds_bind()
584 		remote = lvds->panel->dev->of_node;  in rockchip_lvds_bind()
586 		remote = lvds->bridge->of_node;  in rockchip_lvds_bind()
587 	if (of_property_read_string(dev->of_node, "rockchip,output", &name))  in rockchip_lvds_bind()
589 		lvds->output = DISPLAY_OUTPUT_RGB;  in rockchip_lvds_bind()
591 		lvds->output = rockchip_lvds_name_to_output(name);  in rockchip_lvds_bind()
593 	if (lvds->output < 0) {  in rockchip_lvds_bind()
595 		ret = lvds->output;  in rockchip_lvds_bind()
599 	if (of_property_read_string(remote, "data-mapping", &name))  in rockchip_lvds_bind()
601 		lvds->format = LVDS_VESA_18;  in rockchip_lvds_bind()
603 		lvds->format = rockchip_lvds_name_to_format(name);  in rockchip_lvds_bind()
605 	if (lvds->format < 0) {  in rockchip_lvds_bind()
606 		DRM_DEV_ERROR(dev, "invalid data-mapping format [%s]\n", name);  in rockchip_lvds_bind()
607 		ret = lvds->format;  in rockchip_lvds_bind()
611 	encoder = &lvds->encoder.encoder;  in rockchip_lvds_bind()
612 	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev,  in rockchip_lvds_bind()
613 							     dev->of_node);  in rockchip_lvds_bind()
617 		DRM_DEV_ERROR(drm_dev->dev,  in rockchip_lvds_bind()
622 	drm_encoder_helper_add(encoder, lvds->soc_data->helper_funcs);  in rockchip_lvds_bind()
623 	connector = &lvds->connector;  in rockchip_lvds_bind()
625 	if (lvds->panel) {  in rockchip_lvds_bind()
626 		connector->dpms = DRM_MODE_DPMS_OFF;  in rockchip_lvds_bind()
631 			DRM_DEV_ERROR(drm_dev->dev,  in rockchip_lvds_bind()
639 		ret = drm_bridge_attach(encoder, lvds->bridge, NULL,  in rockchip_lvds_bind()
644 		connector = drm_bridge_connector_init(lvds->drm_dev, encoder);  in rockchip_lvds_bind()
646 			DRM_DEV_ERROR(drm_dev->dev,  in rockchip_lvds_bind()
656 		DRM_DEV_ERROR(drm_dev->dev,  in rockchip_lvds_bind()
685 	encoder_funcs = lvds->soc_data->helper_funcs;  in rockchip_lvds_unbind()
686 	encoder_funcs->disable(&lvds->encoder.encoder);  in rockchip_lvds_unbind()
688 	drm_connector_cleanup(&lvds->connector);  in rockchip_lvds_unbind()
689 	drm_encoder_cleanup(&lvds->encoder.encoder);  in rockchip_lvds_unbind()
699 	struct device *dev = &pdev->dev;  in rockchip_lvds_probe()
704 	if (!dev->of_node)  in rockchip_lvds_probe()
705 		return -ENODEV;  in rockchip_lvds_probe()
707 	lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);  in rockchip_lvds_probe()
709 		return -ENOMEM;  in rockchip_lvds_probe()
711 	lvds->dev = dev;  in rockchip_lvds_probe()
712 	match = of_match_node(rockchip_lvds_dt_ids, dev->of_node);  in rockchip_lvds_probe()
714 		return -ENODEV;  in rockchip_lvds_probe()
715 	lvds->soc_data = match->data;  in rockchip_lvds_probe()
717 	lvds->grf = syscon_regmap_lookup_by_phandle(dev->of_node,  in rockchip_lvds_probe()
719 	if (IS_ERR(lvds->grf)) {  in rockchip_lvds_probe()
721 		return PTR_ERR(lvds->grf);  in rockchip_lvds_probe()
724 	ret = lvds->soc_data->probe(pdev, lvds);  in rockchip_lvds_probe()
732 	ret = component_add(&pdev->dev, &rockchip_lvds_component_ops);  in rockchip_lvds_probe()
735 		clk_unprepare(lvds->pclk);  in rockchip_lvds_probe()
745 	component_del(&pdev->dev, &rockchip_lvds_component_ops);  in rockchip_lvds_remove()
746 	clk_unprepare(lvds->pclk);  in rockchip_lvds_remove()
753 		   .name = "rockchip-lvds",