linux-kernel - [PATCH] ARM: dts: at91: sama5d27_som1

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Date:   Tue, 22 Jun 2021 13:17:42 +0300
From:   Eugen Hristev <eugen.hristev@...rochip.com>
To:     <robh+dt@...nel.org>, <nicolas.ferre@...rochip.com>
CC:     <alexandre.belloni@...tlin.com>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <ludovic.desroches@...rochip.com>,
        Eugen Hristev <eugen.hristev@...rochip.com>
Subject: [PATCH] ARM: dts: at91: sama5d27_som1_ek: enable ADC node

Enable the ADC for AN pins on Mikrobus1 and Mikrobus2 on the board.
These correspond to channels AD6 and AD7 in the controller.

 # cat /sys/bus/iio/devices/iio\:device0/in_voltage6_raw
 240
 # cat /sys/bus/iio/devices/iio\:device0/in_voltage7_raw
 16380

Signed-off-by: Eugen Hristev <eugen.hristev@...rochip.com>
---
 arch/arm/boot/dts/at91-sama5d27_som1_ek.dts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
index a9e6fee55a2a..261a7dbcfdee 100644
--- a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
@@ -224,8 +224,10 @@ i2c1: i2c@...28000 {
 			adc: adc@...30000 {
 				vddana-supply = <&vddana>;
 				vref-supply = <&advref>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_mikrobus1_an &pinctrl_mikrobus2_an>;
 
-				status = "disabled";
+				status = "okay";
 			};
 
 			pinctrl@...38000 {
-- 
2.25.1