linux-kernel - [PATCH v4 02/10] arm64: dts: imx8mm-nitrogen-r2: rework USDHC1

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Date:   Tue, 23 Feb 2021 20:16:45 +0100
From:   Adrien Grassein <adrien.grassein@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     krzk@...nel.org, robh+dt@...nel.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, catalin.marinas@....com, will@...nel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Adrien Grassein <adrien.grassein@...il.com>
Subject: [PATCH v4 02/10] arm64: dts: imx8mm-nitrogen-r2: rework USDHC1

Add VMMC and VQMMC description for USDHC1 (eMMC).
There are comming directly from the alimentation
stage, so add the vref_3V3 fixed regulator.

Signed-off-by: Adrien Grassein <adrien.grassein@...il.com>
---
 arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts b/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts
index 4a3dabeb8c85..217ac8c53702 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts
@@ -17,6 +17,13 @@ reg_vref_1v8: regulator-vref-1v8 {
 		regulator-max-microvolt = <1800000>;
 	};
 
+	reg_vref_3v3: regulator-vref-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vref-3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
 	reg_wlan_vmmc: regulator-wlan-vmmc {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -209,6 +216,8 @@ &usdhc1 {
 	pinctrl-0 = <&pinctrl_usdhc1>;
 	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
 	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+	vmmc-supply = <&reg_vref_3v3>;
+	vqmmc-supply = <&reg_vref_1v8>;
 	status = "okay";
 };
 
-- 
2.25.1