Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Andrey Smirnov <andrew.smirnov@gmail.com>
To:     linux-arm-kernel@lists.infradead.org
Cc:     Andrey Smirnov <andrew.smirnov@gmail.com>,
        Chris Healy <cphealy@gmail.com>,
        Fabio Estevam <festevam@gmail.com>,
        Shawn Guo <shawnguo@kernel.org>, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 5/5] ARM: dts: vf610-zii-cfu1: Add voltage monitor DT node
Date:   Tue, 14 Jan 2020 07:19:06 -0800
Message-Id: <20200114151906.25491-6-andrew.smirnov@gmail.com>
In-Reply-To: <20200114151906.25491-1-andrew.smirnov@gmail.com>
References: <20200114151906.25491-1-andrew.smirnov@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/arm/boot/dts/vf610-zii-cfu1.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/vf610-zii-cfu1.dts b/arch/arm/boot/dts/vf610-zii-cfu1.dts
index 28732249cfc0..ce1920c052fc 100644
--- a/arch/arm/boot/dts/vf610-zii-cfu1.dts
+++ b/arch/arm/boot/dts/vf610-zii-cfu1.dts
@@ -71,6 +71,14 @@
 		los-gpio = <&gpio4 4 GPIO_ACTIVE_HIGH>;
 		tx-disable-gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;
 	};
+
+	supply-voltage-monitor {
+		compatible = "iio-hwmon";
+		io-channels = <&adc0 8>, /* 28VDC_IN */
+			      <&adc0 9>, /* +3.3V    */
+			      <&adc1 8>, /* VCC_1V5  */
+			      <&adc1 9>; /* VCC_1V2  */
+	};
 };
 
 &adc0 {
-- 
2.21.0