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The LT9611UXD is connected via I2C (bus 4, address 0x41), powered by a GPIO-controlled 3.3V regulator (PM8150 GPIO4) and an always-on 1.8V rail. Reset is on GPIO76 and interrupt on GPIO85. The bridge receives DSI output from MDSS and drives an HDMI-A connector, with the link wired as: DPU -> DSI0 -> LT9611UXD -> HDMI. Regulator and pinctrl labels use generic board-level names (vreg_disp_3p3, bridge_irq_pin, bridge_rst_pin) to decouple them from the bridge chip. Signed-off-by: Mohit Dsor --- arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts | 109 ++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts b/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts index 5df30ad8211f..996f645a3628 100644 --- a/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts +++ b/arch/arm64/boot/dts/qcom/shikra-iqs-evk.dts @@ -8,6 +8,7 @@ #include "shikra-iqs-som.dtsi" #include "shikra-evk.dtsi" #include +#include / { model = "Qualcomm Technologies, Inc. Shikra IQS EVK"; @@ -23,6 +24,98 @@ aliases { chosen { stdout-path = "serial0:115200n8"; }; + + hdmi_connector: hdmi-connector { + compatible = "hdmi-connector"; + type = "a"; + + port { + hdmi_con: endpoint { + remote-endpoint = <&hdmi_connector_out>; + }; + }; + }; + + vreg_disp_3p3: regulator-disp-3p3 { + compatible = "regulator-fixed"; + regulator-name = "vreg_disp_3p3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&pm8150_gpios 4 GPIO_ACTIVE_HIGH>; + enable-active-high; + pinctrl-0 = <&lcd_bias_en>; + pinctrl-names = "default"; + }; +}; + +&i2c4 { + status = "okay"; + + hdmi_bridge: hdmi-bridge@41 { + compatible = "lontium,lt9611uxd"; + reg = <0x41>; + interrupts-extended = <&tlmm 85 IRQ_TYPE_EDGE_FALLING>; + reset-gpios = <&tlmm 76 GPIO_ACTIVE_LOW>; + vcc-supply = <&vreg_disp_3p3>; + vdd-supply = <&pm8150_s4>; + + pinctrl-0 = <&bridge_rst_pin &bridge_irq_pin>; + pinctrl-names = "default"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + bridge_dsi_in: endpoint { + remote-endpoint = <&mdss_dsi0_out>; + }; + }; + + port@2 { + reg = <2>; + + hdmi_connector_out: endpoint { + remote-endpoint = <&hdmi_con>; + }; + }; + }; + }; +}; + +&mdss { + status = "okay"; +}; + +&mdss_dsi0 { + vdda-supply = <&pm8150_l11>; + + status = "okay"; +}; + +&mdss_dsi0_out { + remote-endpoint = <&bridge_dsi_in>; + data-lanes = <0 1 2 3>; +}; + +&mdss_dsi0_phy { + status = "okay"; +}; + +&pm8150_gpios { + lcd_bias_en: lcd-bias-en-state { + pins = "gpio4"; + function = PMIC_GPIO_FUNC_NORMAL; + bias-disable; + }; +}; + +&pm8150_l11 { + regulator-min-microvolt = <1232000>; + regulator-max-microvolt = <1232000>; + regulator-allow-set-load; }; &remoteproc_cdsp { @@ -67,6 +160,22 @@ &sdhc_2 { status = "okay"; }; +&tlmm { + bridge_rst_pin: bridge-rst-state { + pins = "gpio76"; + function = "gpio"; + drive-strength = <8>; + bias-disable; + }; + + bridge_irq_pin: bridge-irq-state { + pins = "gpio85"; + function = "gpio"; + drive-strength = <2>; + bias-disable; + }; +}; + &usb_1_hsphy { vdd-supply = <&pm8150_l4>; vdda-pll-supply = <&pm8150_l12>; -- 2.34.1