linux-kernel - [PATCH RFC 2/7] arm64: dts: qcom: qcs6490-rb3gen2: Add qps615 node

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Date: Wed, 26 Jun 2024 18:07:50 +0530
From: Krishna chaitanya chundru <quic_krichai@...cinc.com>
To: Bartosz Golaszewski <brgl@...ev.pl>,
        Manivannan Sadhasivam
	<manivannan.sadhasivam@...aro.org>,
        Lorenzo Pieralisi
	<lpieralisi@...nel.org>,
        Krzysztof Wilczyński
	<kw@...ux.com>,
        Rob Herring <robh@...nel.org>, Bjorn Helgaas
	<bhelgaas@...gle.com>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>
CC: <quic_vbadigan@...cinc.com>, <quic_skananth@...cinc.com>,
        <quic_nitegupt@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Krishna chaitanya chundru
	<quic_krichai@...cinc.com>
Subject: [PATCH RFC 2/7] arm64: dts: qcom: qcs6490-rb3gen2: Add qps615 node

QPS615 switch power is controlled by GPIO's. Once the GPIO's are
enabled, switch power will be on.

Make all GPIO's as fixed regulators and inter link them so that
enabling the regulator will enable power to the switch by enabling
GPIO's.

Enable i2c0 which is required to configure the switch.

Signed-off-by: Krishna chaitanya chundru <quic_krichai@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 55 ++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index a085ff5b5fb2..5b453896a6c9 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -511,6 +511,61 @@ vreg_bob_3p296: bob {
 			regulator-max-microvolt = <3960000>;
 		};
 	};
+
+	qps615_0p9_vreg: qps615-0p9-vreg {
+		compatible = "regulator-fixed";
+		regulator-name = "qps615_0p9_vreg";
+		gpio = <&pm8350c_gpios 2 0>;
+		regulator-min-microvolt = <1000000>;
+		regulator-max-microvolt = <1000000>;
+		enable-active-high;
+		regulator-enable-ramp-delay = <4300>;
+	};
+
+	qps615_1p8_vreg: qps615-1p8-vreg {
+		compatible = "regulator-fixed";
+		regulator-name = "qps615_1p8_vreg";
+		gpio = <&pm8350c_gpios 3 0>;
+		vin-supply = <&qps615_0p9_vreg>;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		enable-active-high;
+		regulator-enable-ramp-delay = <10000>;
+	};
+
+	qps615_rsex_vreg: qps615-rsex-vreg {
+		compatible = "regulator-fixed";
+		regulator-name = "qps615_rsex_vreg";
+		gpio = <&pm8350c_gpios 1 0>;
+		vin-supply = <&qps615_1p8_vreg>;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		enable-active-high;
+		regulator-enable-ramp-delay = <10000>;
+	};
+};
+
+&i2c0 {
+	clock-frequency = <100000>;
+	status = "okay";
+};
+
+&pcie1 {
+	pcie@0 {
+		device_type = "pci";
+		reg = <0x0 0x0 0x0 0x0 0x0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+
+		bus-range = <0x01 0xff>;
+
+		qps615@0 {
+			compatible = "pci1179,0623";
+			reg = <0x1000 0x0 0x0 0x0 0x0>;
+			vdda-supply = <&qps615_rsex_vreg>;
+			switch-i2c-cntrl = <&i2c0>;
+		};
+	};
 };
 
 &gcc {

-- 
2.42.0