linux-kernel - [PATCH 3/3] arm64: dts: rockchip: Add vdd_cpu

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Date:   Fri, 14 Apr 2023 12:34:11 +0300
From:   Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Christopher Obbard <chris.obbard@...labora.com>,
        Michael Riesch <michael.riesch@...fvision.net>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Shreeya Patel <shreeya.patel@...labora.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: [PATCH 3/3] arm64: dts: rockchip: Add vdd_cpu_big regulators to rk3588-rock-5b

The RK8602 and RK8603 voltage regulators on the Rock 5B board provide
the power lines vdd_cpu_big0 and vdd_cpu_big1, respectively.

Add the necessary device tree nodes and bind them to the corresponding
CPU big core nodes.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
 .../boot/dts/rockchip/rk3588-rock-5b.dts      | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index 8cc97d146a73..3e4aee8f70c1 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -53,6 +53,62 @@ vcc5v0_sys: vcc5v0-sys-regulator {
 	};
 };
 
+&cpu_b0 {
+	cpu-supply = <&vdd_cpu_big0_s0>;
+};
+
+&cpu_b1 {
+	cpu-supply = <&vdd_cpu_big0_s0>;
+};
+
+&cpu_b2 {
+	cpu-supply = <&vdd_cpu_big1_s0>;
+};
+
+&cpu_b3 {
+	cpu-supply = <&vdd_cpu_big1_s0>;
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0m2_xfer>;
+	status = "okay";
+
+	vdd_cpu_big0_s0: regulator@42 {
+		compatible = "rockchip,rk8602";
+		reg = <0x42>;
+		fcs,suspend-voltage-selector = <1>;
+		regulator-name = "vdd_cpu_big0_s0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <550000>;
+		regulator-max-microvolt = <1050000>;
+		regulator-ramp-delay = <2300>;
+		vin-supply = <&vcc5v0_sys>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+
+	vdd_cpu_big1_s0: regulator@43 {
+		compatible = "rockchip,rk8603", "rockchip,rk8602";
+		reg = <0x43>;
+		fcs,suspend-voltage-selector = <1>;
+		regulator-name = "vdd_cpu_big1_s0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <550000>;
+		regulator-max-microvolt = <1050000>;
+		regulator-ramp-delay = <2300>;
+		vin-supply = <&vcc5v0_sys>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+};
+
 &i2c6 {
 	status = "okay";
 
-- 
2.40.0