69 static inline u32 lvds_readl(struct mchp_lvds *lvds, u32 offset)  in lvds_readl()  argument
71 	return readl_relaxed(lvds->regs + offset);  in lvds_readl()
74 static inline void lvds_writel(struct mchp_lvds *lvds, u32 offset, u32 val)  in lvds_writel()  argument
76 	writel_relaxed(val, lvds->regs + offset);  in lvds_writel()
79 static void lvds_serialiser_on(struct mchp_lvds *lvds)  in lvds_serialiser_on()  argument
84 	lvds_writel(lvds, LVDSC_WPMR, (LVDSC_WPMR_WPKEY_PSSWD &  in lvds_serialiser_on()
88 	while (lvds_readl(lvds, LVDSC_SR) & LVDSC_SR_CS) {  in lvds_serialiser_on()
90 			dev_err(lvds->dev, "%s: timeout error\n", __func__);  in lvds_serialiser_on()
97 	lvds_writel(lvds, LVDSC_CFGR, (LVDSC_CFGR_MAPPING_JEIDA |  in lvds_serialiser_on()
102 	/* Enable the LVDS serializer */  in lvds_serialiser_on()
103 	lvds_writel(lvds, LVDSC_CR, LVDSC_CR_SER_EN);  in lvds_serialiser_on()
109 	struct mchp_lvds *lvds = bridge_to_lvds(bridge);  in mchp_lvds_attach()  local
111 	return drm_bridge_attach(bridge->encoder, lvds->panel_bridge,  in mchp_lvds_attach()
117 	struct mchp_lvds *lvds = bridge_to_lvds(bridge);  in mchp_lvds_enable()  local
120 	ret = clk_prepare_enable(lvds->pclk);  in mchp_lvds_enable()
122 		dev_err(lvds->dev, "failed to enable lvds pclk %d\n", ret);  in mchp_lvds_enable()
126 	ret = pm_runtime_get_sync(lvds->dev);  in mchp_lvds_enable()
128 		dev_err(lvds->dev, "failed to get pm runtime: %d\n", ret);  in mchp_lvds_enable()
132 	lvds_serialiser_on(lvds);  in mchp_lvds_enable()
137 	struct mchp_lvds *lvds = bridge_to_lvds(bridge);  in mchp_lvds_disable()  local
139 	pm_runtime_put(lvds->dev);  in mchp_lvds_disable()
140 	clk_disable_unprepare(lvds->pclk);  in mchp_lvds_disable()
152 	struct mchp_lvds *lvds;  in mchp_lvds_probe()  local
159 	lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);  in mchp_lvds_probe()
160 	if (!lvds)  in mchp_lvds_probe()
163 	lvds->dev = dev;  in mchp_lvds_probe()
165 	lvds->regs = devm_ioremap_resource(lvds->dev,  in mchp_lvds_probe()
167 	if (IS_ERR(lvds->regs))  in mchp_lvds_probe()
168 		return PTR_ERR(lvds->regs);  in mchp_lvds_probe()
170 	lvds->pclk = devm_clk_get(lvds->dev, "pclk");  in mchp_lvds_probe()
171 	if (IS_ERR(lvds->pclk))  in mchp_lvds_probe()
172 		return dev_err_probe(lvds->dev, PTR_ERR(lvds->pclk),  in mchp_lvds_probe()
178 			"can't find port point, please init lvds panel port!\n");  in mchp_lvds_probe()
182 	lvds->panel = of_drm_find_panel(port);  in mchp_lvds_probe()
185 	if (IS_ERR(lvds->panel))  in mchp_lvds_probe()
188 	lvds->panel_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 1, 0);  in mchp_lvds_probe()
190 	if (IS_ERR(lvds->panel_bridge))  in mchp_lvds_probe()
191 		return PTR_ERR(lvds->panel_bridge);  in mchp_lvds_probe()
193 	lvds->bridge.of_node = dev->of_node;  in mchp_lvds_probe()
194 	lvds->bridge.type = DRM_MODE_CONNECTOR_LVDS;  in mchp_lvds_probe()
195 	lvds->bridge.funcs = &mchp_lvds_bridge_funcs;  in mchp_lvds_probe()
197 	dev_set_drvdata(dev, lvds);  in mchp_lvds_probe()
200 		dev_err(lvds->dev, "failed to enable pm runtime: %d\n", ret);  in mchp_lvds_probe()
204 	drm_bridge_add(&lvds->bridge);  in mchp_lvds_probe()
211 		.compatible = "microchip,sam9x75-lvds",
220 		   .name = "microchip-lvds",