MLK-15001-25 drm/bridge: Add ITE IT6263 LVDS to HDMI transmitter support

This patch adds IT6263 video support.

Signed-off-by: Liu Ying <victor.liu@nxp.com>
(cherry picked from commit bf1acefa)

Documentation/devicetree/bindings/display/bridge/it6263.txt

+ITE IT6263 LVDS to HDMI bridge bindings
+
+Required properties:
+	- compatible: "ite,it6263"
+	- reg: i2c address of the bridge
+	- video input: this subnode can contain a video input port node
+	  to connect the bridge to a LVDS output interface (See this
+	  documentation [1]).
+
+Optional properties:
+	- split-mode: boolean. if this exists, split mode is enabled,
+	  otherwise, single mode is enabled.
+
+[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+	lvds-to-hdmi-bridge@4c {
+		compatible = "ite,it6263";
+		reg = <0x4c>;
+
+		port {
+			it6263_0_in: endpoint {
+				clock-lanes = <3>;
+				data-lanes = <0 1 2 4 5>;
+				remote-endpoint = <&lvds0_out>;
+			};
+		};
+	};

drivers/gpu/drm/bridge/Kconfig

@@ -149,4 +149,12 @@ source "drivers/gpu/drm/bridge/adv7511/Kconfig"
 
 source "drivers/gpu/drm/bridge/synopsys/Kconfig"
 
+config DRM_ITE_IT6263
+	tristate "ITE IT6263 LVDS/HDMI bridge"
+	depends on OF
+	select DRM_KMS_HELPER
+	select REGMAP_I2C
+	---help---
+	  ITE IT6263 bridge chip driver.
+
 endmenu

drivers/gpu/drm/bridge/Makefile

@@ -17,3 +17,4 @@ obj-$(CONFIG_DRM_TI_TFP410) += ti-tfp410.o
 obj-y += synopsys/
 obj-$(CONFIG_DRM_NWL_DSI) += nwl-dsi.o
 obj-$(CONFIG_DRM_SEC_MIPI_DSIM) += sec-dsim.o
+obj-$(CONFIG_DRM_ITE_IT6263) += it6263.o