This patch adds a binding that describes the cdn DP controller for
rk3399.
Signed-off-by: Chris Zhong
---
Changes in v3:
- add SoC specific compatible string
- remove reg = <1>;
Changes in v2: None
Changes in v1:
- add extcon node description
- add #sound-dai-cells description
.../bindings/display/rockchip/cdn-dp-rockchip.txt | 61 ++
1 file changed, 61 insertions(+)
create mode 100644
Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
diff --git
a/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
new file mode 100644
index 000..b14b2b2
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
@@ -0,0 +1,61 @@
+Rockchip RK3399 specific extensions to the cdn Display Port
+
+
+Required properties:
+- compatible: must be "rockchip,rk3399-cdn-dp"
+
+- reg: physical base address of the controller and length
+
+- clocks: from common clock binding: handle to dp clock.
+
+- clock-names: from common clock binding:
+ Required elements: "core-clk" "pclk" "spdif"
+
+- rockchip,grf: this soc should set GRF regs, so need get grf here.
+
+- ports: contain a port nodes with endpoint definitions as defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt.
+contained 2 endpoints, connecting to the output of vop.
+
+- phys: from general PHY binding: the phandle for the PHY device.
+
+- extcon: extcon specifier for the Power Delivery
+
+- #sound-dai-cells = it must be 1 if your system is using 2 DAIs: I2S, SPDIF
+
+---
+
+Example:
+ cdn_dp: dp at fec0 {
+ compatible = "rockchip,rk3399-cdn-dp";
+ reg = <0x0 0xfec0 0x0 0x10>;
+ interrupts = ;
+ clocks = < SCLK_DP_CORE>, < PCLK_DP_CTRL>,
+< SCLK_SPDIF_REC_DPTX>;
+ clock-names = "core-clk", "pclk", "spdif";
+ phys = <>;
+ extcon = <>;
+ rockchip,grf = <>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #sound-dai-cells = <1>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dp_in: port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ dp_in_vopb: endpoint at 0 {
+ reg = <0>;
+ remote-endpoint = <_out_dp>;
+ };
+
+ dp_in_vopl: endpoint at 1 {
+ reg = <1>;
+ remote-endpoint = <_out_dp>;
+ };
+ };
+ };
+ };
--
2.6.3
