linux-kernel - [PATCH v2 1/3] arm64: dts: imx8qm-mek: add adc0 support

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Message-Id: <20240227193049.457426-1-Frank.Li@nxp.com>
Date: Tue, 27 Feb 2024 14:30:46 -0500
From: Frank Li <Frank.Li@....com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	imx@...ts.linux.dev (open list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 1/3] arm64: dts: imx8qm-mek: add adc0 support

Add adc0 for imx8qm-mek board.

Signed-off-by: Frank Li <Frank.Li@....com>
---

Notes:
    Change from v1 to v2
    - none

 arch/arm64/boot/dts/freescale/imx8qm-mek.dts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
index 77ac0efdfaada..0c4972724b041 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
+++ b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
@@ -39,6 +39,20 @@ reg_usdhc2_vmmc: usdhc2-vmmc {
 		gpio = <&lsio_gpio4 19 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
+
+	reg_vref_1v8: regulator-adc-vref {
+		compatible = "regulator-fixed";
+		regulator-name = "vref_1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+};
+
+&adc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc0>;
+	vref-supply = <&reg_vref_1v8>;
+	status = "okay";
 };
 
 &i2c1 {
@@ -130,6 +144,12 @@ IMX8QM_GPT0_CAPTURE_LSIO_GPIO0_IO15	0xc600004c
 		>;
 	};
 
+	pinctrl_adc0: adc0grp {
+		fsl,pins = <
+			IMX8QM_ADC_IN0_DMA_ADC0_IN0				0xc0000060
+		>;
+	};
+
 	pinctrl_fec1: fec1grp {
 		fsl,pins = <
 			IMX8QM_ENET0_MDC_CONN_ENET0_MDC				0x06000020
-- 
2.34.1