Merge tag 'linux-watchdog-4.20-rc1' of git://www.linux-watchdog.org/linux-watchdog
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / phy / phy-rockchip-inno-hdmi.txt
1 ROCKCHIP HDMI PHY WITH INNO IP BLOCK
2
3 Required properties:
4  - compatible : should be one of the listed compatibles:
5         * "rockchip,rk3228-hdmi-phy",
6         * "rockchip,rk3328-hdmi-phy";
7  - reg : Address and length of the hdmi phy control register set
8  - clocks : phandle + clock specifier for the phy clocks
9  - clock-names : string, clock name, must contain "sysclk" for system
10           control and register configuration, "refoclk" for crystal-
11           oscillator reference PLL clock input and "refpclk" for pclk-
12           based refeference PLL clock input.
13  - #clock-cells: should be 0.
14  - clock-output-names : shall be the name for the output clock.
15  - interrupts : phandle + interrupt specified for the hdmiphy interrupt
16  - #phy-cells : must be 0. See ./phy-bindings.txt for details.
17
18 Optional properties for rk3328-hdmi-phy:
19  - nvmem-cells = phandle + nvmem specifier for the cpu-version efuse
20  - nvmem-cell-names : "cpu-version" to read the chip version, required
21           for adjustment to some frequency settings
22
23 Example:
24         hdmi_phy: hdmi-phy@12030000 {
25                 compatible = "rockchip,rk3228-hdmi-phy";
26                 reg = <0x12030000 0x10000>;
27                 #phy-cells = <0>;
28                 clocks = <&cru PCLK_HDMI_PHY>, <&xin24m>, <&cru DCLK_HDMIPHY>;
29                 clock-names = "sysclk", "refoclk", "refpclk";
30                 #clock-cells = <0>;
31                 clock-output-names = "hdmi_phy";
32                 status = "disabled";
33         };
34
35 Then the PHY can be used in other nodes such as:
36
37         hdmi: hdmi@200a0000 {
38                 compatible = "rockchip,rk3228-dw-hdmi";
39                 ...
40                 phys = <&hdmi_phy>;
41                 phy-names = "hdmi";
42                 ...
43         };