linux-kernel - [PATCH v2 6/8] arm64: dts: qcom: sa8295p-adp: add max20411

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Message-ID: <20231220-sa8295p-gpu-v2-6-4763246b72c0@quicinc.com>
Date: Thu, 21 Dec 2023 20:39:27 -0800
From: Bjorn Andersson <quic_bjorande@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        "Krzysztof
 Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Taniya Das <quic_tdas@...cinc.com>,
        Ulf Hansson
	<ulf.hansson@...aro.org>,
        Johan Hovold <johan+linaro@...nel.org>,
        "Catalin
 Marinas" <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-pm@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        "Bjorn
 Andersson" <quic_bjorande@...cinc.com>,
        Bjorn Andersson
	<andersson@...nel.org>
Subject: [PATCH v2 6/8] arm64: dts: qcom: sa8295p-adp: add max20411

From: Bjorn Andersson <andersson@...nel.org>

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@...aro.org>
---
 arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 40 ++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
index fd253942e5e5..14327c697116 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 +760,12 @@ 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