linux-kernel - [PATCH 4/5] ARM: dts: vf610-zii-dev: Add voltage monitor DT node

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Date:   Tue, 14 Jan 2020 07:19:05 -0800
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>,
        Chris Healy <cphealy@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] ARM: dts: vf610-zii-dev: Add voltage monitor DT node

Add a DT node for various voltage supply rails connected to SoC's ADC
for voltage monitoring purposes.

Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
Cc: Chris Healy <cphealy@...il.com>
Cc: Fabio Estevam <festevam@...il.com>
Cc: Shawn Guo <shawnguo@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 arch/arm/boot/dts/vf610-zii-dev.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/vf610-zii-dev.dtsi b/arch/arm/boot/dts/vf610-zii-dev.dtsi
index a1b4ccee2a10..95d0060fb56c 100644
--- a/arch/arm/boot/dts/vf610-zii-dev.dtsi
+++ b/arch/arm/boot/dts/vf610-zii-dev.dtsi
@@ -84,6 +84,14 @@
 		regulator-boot-on;
 		gpio = <&gpio0 6 0>;
 	};
+
+	supply-voltage-monitor {
+		compatible = "iio-hwmon";
+		io-channels = <&adc0 8>, /* VCC_1V5 */
+			      <&adc0 9>, /* VCC_1V8 */
+			      <&adc1 8>, /* VCC_1V0 */
+			      <&adc1 9>; /* VCC_1V2 */
+	};
 };
 
 &adc0 {
-- 
2.21.0