Add binding documentation for Rockchip SoC EDP driver.
Signed-off-by: Jeff Chen <jeff.chen@xxxxxxxxxxxxxx>
Signed-off-by: Mark Yao <mark.yao@xxxxxxxxxxxxxx>
---
changes in v2:
- add edp reset
- add panel node
- add port for display-subsystem
.../devicetree/bindings/video/rockchip-edp.txt | 50 ++++++++++++++++++++
1 file changed, 50 insertions(+)
create mode 100644 Documentation/devicetree/bindings/video/rockchip-edp.txt
diff --git a/Documentation/devicetree/bindings/video/rockchip-edp.txt b/Documentation/devicetree/bindings/video/rockchip-edp.txt
new file mode 100644
index 0000000..515e806
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/rockchip-edp.txt
@@ -0,0 +1,50 @@
+Rockchip RK3288 EDP interface
+================================
+
+Required properties:
+- compatible: "rockchip,rk3288-edp";
+
+- reg: physical base address of the controller and length
+- clocks: from common clock binding: handle to dp clock.
+ of memory mapped region.
+- clock-names: from common clock binding:
+ Required elements: "clk_edp"
+ "clk_edp_24m"
+ "pclk_edp"
+- resets: Must contain an entry for each entry in reset-names.
+ See ../reset/reset.txt for details.
+- reset-names: Must include the name "edp"
+
+- rockchip,grf: this soc should set GRF regs, so need get grf here.
+- rockchip,panel: required a simple panel node as described by
+ Documentation/devicetree/bindings/panel/simple-panel.txt
+
+- ports: contain a port node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+ edp: edp@ff970000 {
+ compatible = "rockchip,rk3288-edp";
+ reg = <0xff970000 0x4000>;
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_EDP>, <&cru SCLK_EDP_24M>, <&cru PCLK_EDP_CTRL>;
+ clock-names = "clk_edp", "clk_edp_24m", "pclk_edp";
+ rockchip,grf = <&grf>;
+ resets = <&cru 111>;
+ reset-names = "edp";
+ rockchip,panel = <&panel>;
+ ports {
+ edp_in: port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ edp_in_vopb: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&vopb_out_edp>;
+ };
+ edp_in_vopl: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&vopl_out_edp>;
+ };
+ };
+ };
+ };
--
1.7.9.5
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