From 17e5bb37c53a8b93a26173d5a619495028e9f096 Mon Sep 17 00:00:00 2001 From: Johan Jonker Date: Sat, 30 Mar 2019 10:56:39 +0100 Subject: [PATCH] dt-bindings: display: rockchip: add document for rk3066 hdmi This patch adds a binding that describes the HDMI controller for rk3066. Signed-off-by: Johan Jonker Reviewed-by: Rob Herring Signed-off-by: Heiko Stuebner Link: https://patchwork.freedesktop.org/patch/msgid/20190330095639.14626-5-jbx6244@gmail.com --- .../display/rockchip/rockchip,rk3066-hdmi.txt | 72 +++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.txt diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.txt new file mode 100644 index 000000000000..d1ad31bca8d9 --- /dev/null +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.txt @@ -0,0 +1,72 @@ +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 = ; + 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>; + }; + }; +}; -- 2.30.2