From: Bjorn Andersson <andersson@xxxxxxxxxx> The SA8295P ADP has a MAX20411 LDO regulator on I2C 12, supplying the VDD_GFX pads. Enable the bus and add the maxim,max20411 device on the bus. Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> --- arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 39 ++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts index fd253942e5e5..bd0962f39fc5 100644 --- a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts +++ b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts @@ -266,6 +266,26 @@ &dispcc1 { status = "okay"; }; +&i2c12 { + pinctrl-0 = <&qup1_i2c4_state>; + pinctrl-names = "default"; + + status = "okay"; + + vdd_gfx: regulator@39 { + compatible = "maxim,max20411"; + reg = <0x39>; + + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <800000>; + + enable-gpios = <&pmm8540a_gpios 2 GPIO_ACTIVE_HIGH>; + + pinctrl-0 = <&max20411_en>; + pinctrl-names = "default"; + }; +}; + &mdss0 { status = "okay"; }; @@ -476,6 +496,10 @@ &pcie4_phy { status = "okay"; }; +&qup1 { + status = "okay"; +}; + &qup2 { status = "okay"; }; @@ -636,6 +660,14 @@ &xo_board_clk { /* PINCTRL */ +&pmm8540a_gpios { + max20411_en: max20411-en-state { + pins = "gpio2"; + function = "normal"; + output-enable; + }; +}; + &tlmm { pcie2a_default: pcie2a-default-state { clkreq-n-pins { @@ -728,4 +760,11 @@ wake-n-pins { bias-pull-up; }; }; + + qup1_i2c4_state: qup1-i2c4-state { + pins = "gpio0", "gpio1"; + function = "qup12"; + drive-strength = <2>; + bias-pull-up; + }; }; -- 2.25.1