linux-kernel - [PATCH v4 16/19] arm64: dts: mediatek: asurada: Add SPMI regulators

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Date:   Wed, 29 Jun 2022 11:59:53 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Matthias Brugger <matthias.bgg@...il.com>
Cc:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, kernel@...labora.com,
        Chen-Yu Tsai <wenst@...omium.org>,
        Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH v4 16/19] arm64: dts: mediatek: asurada: Add SPMI regulators

The Asurada platform uses regulators from MT6315 PMICs acessible through
SPMI. Add support for them.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Tested-by: Chen-Yu Tsai <wenst@...omium.org>

---

Changes in v4:
- Updated Vgpu minimum voltage to appropriate value

Changes in v2:
- Added this patch

 .../boot/dts/mediatek/mt8192-asurada.dtsi     | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index 31c9d1f8c80a..d56c73e37633 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -7,6 +7,7 @@
 #include "mt8192.dtsi"
 #include "mt6359.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/spmi/spmi.h>
 
 / {
 	aliases {
@@ -679,6 +680,54 @@ cr50@0 {
 	};
 };
 
+&spmi {
+	#address-cells = <2>;
+	#size-cells = <0>;
+
+	mt6315_6: pmic@6 {
+		compatible = "mediatek,mt6315-regulator";
+		reg = <0x6 SPMI_USID>;
+
+		regulators {
+			mt6315_6_vbuck1: vbuck1 {
+				regulator-compatible = "vbuck1";
+				regulator-name = "Vbcpu";
+				regulator-min-microvolt = <300000>;
+				regulator-max-microvolt = <1193750>;
+				regulator-enable-ramp-delay = <256>;
+				regulator-allowed-modes = <0 1 2>;
+				regulator-always-on;
+			};
+
+			mt6315_6_vbuck3: vbuck3 {
+				regulator-compatible = "vbuck3";
+				regulator-name = "Vlcpu";
+				regulator-min-microvolt = <300000>;
+				regulator-max-microvolt = <1193750>;
+				regulator-enable-ramp-delay = <256>;
+				regulator-allowed-modes = <0 1 2>;
+				regulator-always-on;
+			};
+		};
+	};
+
+	mt6315_7: pmic@7 {
+		compatible = "mediatek,mt6315-regulator";
+		reg = <0x7 SPMI_USID>;
+
+		regulators {
+			mt6315_7_vbuck1: vbuck1 {
+				regulator-compatible = "vbuck1";
+				regulator-name = "Vgpu";
+				regulator-min-microvolt = <606250>;
+				regulator-max-microvolt = <1193750>;
+				regulator-enable-ramp-delay = <256>;
+				regulator-allowed-modes = <0 1 2>;
+			};
+		};
+	};
+};
+
 &uart0 {
 	status = "okay";
 };
-- 
2.36.1