39  * struct rockchip_lvds_soc_data - rockchip lvds Soc private data
40  * @probe: LVDS platform probe function
41  * @helper_funcs: LVDS connector helper functions
44 	int (*probe)(struct platform_device *pdev, struct rockchip_lvds *lvds);
55 	int output; /* rgb lvds or dual lvds output */
77 static inline void rk3288_writel(struct rockchip_lvds *lvds, u32 offset,  in rk3288_writel()  argument
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()
102 	else if (strncmp(s, "lvds", 4) == 0)  in rockchip_lvds_name_to_output()
120 	struct rockchip_lvds *lvds = connector_to_lvds(connector);  in rockchip_lvds_connector_get_modes()  local
121 	struct drm_panel *panel = lvds->panel;  in rockchip_lvds_connector_get_modes()
144 static int rk3288_lvds_poweron(struct rockchip_lvds *lvds)  in rk3288_lvds_poweron()  argument
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()
166 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG0, val);  in rk3288_lvds_poweron()
167 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG2,  in rk3288_lvds_poweron()
169 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG4,  in rk3288_lvds_poweron()
176 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG5,  in rk3288_lvds_poweron()
186 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG0, val);  in rk3288_lvds_poweron()
187 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG1,  in rk3288_lvds_poweron()
194 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG2,  in rk3288_lvds_poweron()
203 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG4, 0x00);  in rk3288_lvds_poweron()
204 		rk3288_writel(lvds, RK3288_LVDS_CH0_REG5, 0x00);  in rk3288_lvds_poweron()
206 	rk3288_writel(lvds, RK3288_LVDS_CH0_REG3,  in rk3288_lvds_poweron()
208 	rk3288_writel(lvds, RK3288_LVDS_CH0_REGD,  in rk3288_lvds_poweron()
210 	rk3288_writel(lvds, RK3288_LVDS_CH0_REG20,  in rk3288_lvds_poweron()
213 	rk3288_writel(lvds, RK3288_LVDS_CFG_REGC,  in rk3288_lvds_poweron()
215 	rk3288_writel(lvds, RK3288_LVDS_CFG_REG21,  in rk3288_lvds_poweron()
221 static void rk3288_lvds_poweroff(struct rockchip_lvds *lvds)  in rk3288_lvds_poweroff()  argument
226 	rk3288_writel(lvds, RK3288_LVDS_CFG_REG21,  in rk3288_lvds_poweroff()
228 	rk3288_writel(lvds, RK3288_LVDS_CFG_REGC,  in rk3288_lvds_poweroff()
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()
243 	struct rockchip_lvds *lvds = encoder_to_lvds(encoder);  in rk3288_lvds_grf_config()  local
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()
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()
272 static int rk3288_lvds_set_vop_source(struct rockchip_lvds *lvds,  in rk3288_lvds_set_vop_source()  argument
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()
295 	struct rockchip_lvds *lvds = encoder_to_lvds(encoder);  in rk3288_lvds_encoder_enable()  local
299 	drm_panel_prepare(lvds->panel);  in rk3288_lvds_encoder_enable()
301 	ret = rk3288_lvds_poweron(lvds);  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()
315 	ret = rk3288_lvds_set_vop_source(lvds, encoder);  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()
327 	struct rockchip_lvds *lvds = encoder_to_lvds(encoder);  in rk3288_lvds_encoder_disable()  local
329 	drm_panel_disable(lvds->panel);  in rk3288_lvds_encoder_disable()
330 	rk3288_lvds_poweroff(lvds);  in rk3288_lvds_encoder_disable()
331 	drm_panel_unprepare(lvds->panel);  in rk3288_lvds_encoder_disable()
334 static int px30_lvds_poweron(struct rockchip_lvds *lvds)  in px30_lvds_poweron()  argument
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()
344 	/* Enable LVDS mode */  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()
354 static void px30_lvds_poweroff(struct rockchip_lvds *lvds)  in px30_lvds_poweroff()  argument
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()
366 	struct rockchip_lvds *lvds = encoder_to_lvds(encoder);  in px30_lvds_grf_config()  local
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()
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()
380 static int px30_lvds_set_vop_source(struct rockchip_lvds *lvds,  in px30_lvds_set_vop_source()  argument
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()
396 	struct rockchip_lvds *lvds = encoder_to_lvds(encoder);  in px30_lvds_encoder_enable()  local
400 	drm_panel_prepare(lvds->panel);  in px30_lvds_encoder_enable()
402 	ret = px30_lvds_poweron(lvds);  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()
416 	ret = px30_lvds_set_vop_source(lvds, encoder);  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()
428 	struct rockchip_lvds *lvds = encoder_to_lvds(encoder);  in px30_lvds_encoder_disable()  local
430 	drm_panel_disable(lvds->panel);  in px30_lvds_encoder_disable()
431 	px30_lvds_poweroff(lvds);  in px30_lvds_encoder_disable()
432 	drm_panel_unprepare(lvds->panel);  in px30_lvds_encoder_disable()
450 			     struct rockchip_lvds *lvds)  in rk3288_lvds_probe()  argument
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()
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()
494 			   struct rockchip_lvds *lvds)  in px30_lvds_probe()  argument
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",
547 	struct rockchip_lvds *lvds = dev_get_drvdata(dev);  in rockchip_lvds_bind()  local
557 	lvds->drm_dev = drm_dev;  in rockchip_lvds_bind()
561 			      "can't found port point, please init lvds panel port!\n");  in rockchip_lvds_bind()
568 						  &lvds->panel, &lvds->bridge);  in rockchip_lvds_bind()
575 		DRM_DEV_ERROR(dev, "lvds port does not have any children\n");  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()
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()
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()
607 		ret = lvds->format;  in rockchip_lvds_bind()
611 	encoder = &lvds->encoder.encoder;  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()
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()
682 	struct rockchip_lvds *lvds = dev_get_drvdata(dev);  in rockchip_lvds_unbind()  local
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()
700 	struct rockchip_lvds *lvds;  in rockchip_lvds_probe()  local
707 	lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);  in rockchip_lvds_probe()
708 	if (!lvds)  in rockchip_lvds_probe()
711 	lvds->dev = dev;  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()
730 	dev_set_drvdata(dev, lvds);  in rockchip_lvds_probe()
735 		clk_unprepare(lvds->pclk);  in rockchip_lvds_probe()
743 	struct rockchip_lvds *lvds = platform_get_drvdata(pdev);  in rockchip_lvds_remove()  local
746 	clk_unprepare(lvds->pclk);  in rockchip_lvds_remove()
753 		   .name = "rockchip-lvds",