tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1Rockchip specific extensions to the Synopsys Designware HDMI
2================================
3
4Required properties:
5- compatible: "rockchip,rk3288-dw-hdmi";
6- reg: Physical base address and length of the controller's registers.
7- clocks: phandle to hdmi iahb and isfr clocks.
8- clock-names: should be "iahb" "isfr"
9- rockchip,grf: this soc should set GRF regs to mux vopl/vopb.
10- interrupts: HDMI interrupt number
11- ports: contain a port node with endpoint definitions as defined in
12 Documentation/devicetree/bindings/media/video-interfaces.txt. For
13 vopb,set the reg = <0> and set the reg = <1> for vopl.
14- reg-io-width: the width of the reg:1,4, the value should be 4 on
15 rk3288 platform
16
17Optional properties
18- ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
19- clocks, clock-names: phandle to the HDMI CEC clock, name should be "cec"
20
21Example:
22hdmi: hdmi@ff980000 {
23 compatible = "rockchip,rk3288-dw-hdmi";
24 reg = <0xff980000 0x20000>;
25 reg-io-width = <4>;
26 ddc-i2c-bus = <&i2c5>;
27 rockchip,grf = <&grf>;
28 interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
29 clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
30 clock-names = "iahb", "isfr";
31 status = "disabled";
32 ports {
33 hdmi_in: port {
34 #address-cells = <1>;
35 #size-cells = <0>;
36 hdmi_in_vopb: endpoint@0 {
37 reg = <0>;
38 remote-endpoint = <&vopb_out_hdmi>;
39 };
40 hdmi_in_vopl: endpoint@1 {
41 reg = <1>;
42 remote-endpoint = <&vopl_out_hdmi>;
43 };
44 };
45 };
46};