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Diffstat (limited to 'Documentation/devicetree/bindings/display/msm/hdmi.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/display/msm/hdmi.txt | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/msm/hdmi.txt b/Documentation/devicetree/bindings/display/msm/hdmi.txt new file mode 100644 index 000000000..5f90a40da --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/hdmi.txt @@ -0,0 +1,99 @@ +Qualcomm adreno/snapdragon hdmi output + +Required properties: +- compatible: one of the following + * "qcom,hdmi-tx-8996" + * "qcom,hdmi-tx-8994" + * "qcom,hdmi-tx-8084" + * "qcom,hdmi-tx-8974" + * "qcom,hdmi-tx-8660" + * "qcom,hdmi-tx-8960" +- reg: Physical base address and length of the controller's registers +- reg-names: "core_physical" +- interrupts: The interrupt signal from the hdmi block. +- power-domains: Should be <&mmcc MDSS_GDSC>. +- clocks: device clocks + See ../clocks/clock-bindings.txt for details. +- core-vdda-supply: phandle to supply regulator +- hdmi-mux-supply: phandle to mux regulator +- phys: the phandle for the HDMI PHY device +- phy-names: the name of the corresponding PHY device + +Optional properties: +- hpd-gpios: hpd pin +- qcom,hdmi-tx-mux-en-gpios: hdmi mux enable pin +- qcom,hdmi-tx-mux-sel-gpios: hdmi mux select pin +- qcom,hdmi-tx-mux-lpm-gpios: hdmi mux lpm pin +- power-domains: reference to the power domain(s), if available. +- pinctrl-names: the pin control state names; should contain "default" +- pinctrl-0: the default pinctrl state (active) +- pinctrl-1: the "sleep" pinctrl state + +HDMI PHY: +Required properties: +- compatible: Could be the following + * "qcom,hdmi-phy-8660" + * "qcom,hdmi-phy-8960" + * "qcom,hdmi-phy-8974" + * "qcom,hdmi-phy-8084" + * "qcom,hdmi-phy-8996" +- #phy-cells: Number of cells in a PHY specifier; Should be 0. +- reg: Physical base address and length of the registers of the PHY sub blocks. +- reg-names: The names of register regions. The following regions are required: + * "hdmi_phy" + * "hdmi_pll" + For HDMI PHY on msm8996, these additional register regions are required: + * "hdmi_tx_l0" + * "hdmi_tx_l1" + * "hdmi_tx_l3" + * "hdmi_tx_l4" +- power-domains: Should be <&mmcc MDSS_GDSC>. +- clocks: device clocks + See Documentation/devicetree/bindings/clock/clock-bindings.txt for details. +- core-vdda-supply: phandle to vdda regulator device node + +Example: + +/ { + ... + + hdmi: hdmi@4a00000 { + compatible = "qcom,hdmi-tx-8960"; + reg-names = "core_physical"; + reg = <0x04a00000 0x2f0>; + interrupts = <GIC_SPI 79 0>; + power-domains = <&mmcc MDSS_GDSC>; + clock-names = + "core", + "master_iface", + "slave_iface"; + clocks = + <&mmcc HDMI_APP_CLK>, + <&mmcc HDMI_M_AHB_CLK>, + <&mmcc HDMI_S_AHB_CLK>; + qcom,hdmi-tx-ddc-clk = <&msmgpio 70 GPIO_ACTIVE_HIGH>; + qcom,hdmi-tx-ddc-data = <&msmgpio 71 GPIO_ACTIVE_HIGH>; + qcom,hdmi-tx-hpd = <&msmgpio 72 GPIO_ACTIVE_HIGH>; + core-vdda-supply = <&pm8921_hdmi_mvs>; + hdmi-mux-supply = <&ext_3p3v>; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&hpd_active &ddc_active &cec_active>; + pinctrl-1 = <&hpd_suspend &ddc_suspend &cec_suspend>; + + phys = <&hdmi_phy>; + phy-names = "hdmi_phy"; + }; + + hdmi_phy: phy@4a00400 { + compatible = "qcom,hdmi-phy-8960"; + reg-names = "hdmi_phy", + "hdmi_pll"; + reg = <0x4a00400 0x60>, + <0x4a00500 0x100>; + #phy-cells = <0>; + power-domains = <&mmcc MDSS_GDSC>; + clock-names = "slave_iface"; + clocks = <&mmcc HDMI_S_AHB_CLK>; + core-vdda-supply = <&pm8921_hdmi_mvs>; + }; +}; |