Commit 17e5bb37 authored by Johan Jonker's avatar Johan Jonker Committed by Heiko Stuebner

dt-bindings: display: rockchip: add document for rk3066 hdmi

This patch adds a binding that describes the HDMI controller for
rk3066.
Signed-off-by: default avatarJohan Jonker <jbx6244@gmail.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20190330095639.14626-5-jbx6244@gmail.com
parent a5c0fa44
Rockchip specific extensions for rk3066 HDMI
============================================
Required properties:
- compatible:
"rockchip,rk3066-hdmi";
- reg:
Physical base address and length of the controller's registers.
- clocks, clock-names:
Phandle to HDMI controller clock, name should be "hclk".
- interrupts:
HDMI interrupt number.
- power-domains:
Phandle to the RK3066_PD_VIO power domain.
- rockchip,grf:
This soc uses GRF regs to switch the HDMI TX input between vop0 and vop1.
- ports:
Contains one port node with two endpoints, numbered 0 and 1,
connected respectively to vop0 and vop1.
Contains one port node with one endpoint
connected to a hdmi-connector node.
- pinctrl-0, pinctrl-name:
Switch the iomux for the HPD/I2C pins to HDMI function.
Example:
hdmi: hdmi@10116000 {
compatible = "rockchip,rk3066-hdmi";
reg = <0x10116000 0x2000>;
interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_HDMI>;
clock-names = "hclk";
power-domains = <&power RK3066_PD_VIO>;
rockchip,grf = <&grf>;
pinctrl-names = "default";
pinctrl-0 = <&hdmii2c_xfer>, <&hdmi_hpd>;
ports {
#address-cells = <1>;
#size-cells = <0>;
hdmi_in: port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
hdmi_in_vop0: endpoint@0 {
reg = <0>;
remote-endpoint = <&vop0_out_hdmi>;
};
hdmi_in_vop1: endpoint@1 {
reg = <1>;
remote-endpoint = <&vop1_out_hdmi>;
};
};
hdmi_out: port@1 {
reg = <1>;
hdmi_out_con: endpoint {
remote-endpoint = <&hdmi_con_in>;
};
};
};
};
&pinctrl {
hdmi {
hdmi_hpd: hdmi-hpd {
rockchip,pins = <0 RK_PA0 1 &pcfg_pull_default>;
};
hdmii2c_xfer: hdmii2c-xfer {
rockchip,pins = <0 RK_PA1 1 &pcfg_pull_none>,
<0 RK_PA2 1 &pcfg_pull_none>;
};
};
};
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