linux-kernel - [PATCH] arm64: dts: rockchip: nanopc-t6 sdmmc regulator

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Date: Tue,  2 Jan 2024 02:40:53 +0000
From: John Clark <inindev@...il.com>
To: "Rob Herring" <robh+dt@...nel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
	"Conor Dooley" <conor+dt@...nel.org>,
	"Heiko Stuebner" <heiko@...ech.de>,
	linux-rockchip@...ts.infradead.org
Cc: "Thomas McKahan" <tmckahan@...gleboardsolutions.com>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	John Clark <inindev@...il.com>
Subject: [PATCH] arm64: dts: rockchip: nanopc-t6 sdmmc regulator

sdmmc on the nanopc-t6 is powered by vcc3v3_sd_s0, not vcc_3v3_s3
add the vcc3v3_sd_s0 regulator, and control it with gpio4_a5

Signed-off-by: John Clark <inindev@...il.com>
---
 arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts
index 54445f929a37..fc8add8df3db 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dts
@@ -159,6 +159,17 @@ vcc3v3_pcie30: vcc3v3-pcie30-regulator {
 		regulator-max-microvolt = <3300000>;
 		vin-supply = <&vcc5v0_sys>;
 	};
+
+	vcc3v3_sd_s0: vcc3v3-sd-s0-regulator {
+		compatible = "regulator-fixed";
+		enable-active-low;
+		gpio = <&gpio4 RK_PA5 GPIO_ACTIVE_LOW>;
+		regulator-boot-on;
+		regulator-max-microvolt = <3300000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-name = "vcc3v3_sd_s0";
+		vin-supply = <&vcc_3v3_s3>;
+	};
 };
 
 &combphy0_ps {
@@ -544,7 +555,7 @@ &sdmmc {
 	no-mmc;
 	no-sdio;
 	sd-uhs-sdr104;
-	vmmc-supply = <&vcc_3v3_s3>;
+	vmmc-supply = <&vcc3v3_sd_s0>;
 	vqmmc-supply = <&vccio_sd_s0>;
 	status = "okay";
 };
-- 
2.43.0