linux-kernel - [PATCH] ARM: dts: rockchip: fix vref-supply for &saradc node rk3288 firefly reload

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Message-Id: <20200314140755.4877-1-jbx6244@gmail.com>
Date:   Sat, 14 Mar 2020 15:07:55 +0100
From:   Johan Jonker <jbx6244@...il.com>
To:     heiko@...ech.de
Cc:     robh+dt@...nel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: dts: rockchip: fix vref-supply for &saradc node rk3288 firefly reload

A test with the command below gives this error:

arch/arm/boot/dts/rk3288-firefly-reload.dt.yaml: saradc@...00000:
'vref-supply' is a required property

PMIC Channel OUT11 with powername 'vcc_18'
(connected through R155 bridge with 'vccio_wl')
is used for the recovery key and ADC_AVDD_1V8.

Fix error by adding 'vcc_18' as vref for the saradc.

make ARCH=arm dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/iio/adc/
rockchip-saradc.yaml

Signed-off-by: Johan Jonker <jbx6244@...il.com>
---
Schematic:

http://www.t-firefly.com/download/Firefly-RK3288-Reload/hardware/MainBoard/
Schematic/FIREFLY-RK3288_RELOAD_V10_Schematic.pdf
---
 arch/arm/boot/dts/rk3288-firefly-reload.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/rk3288-firefly-reload.dts b/arch/arm/boot/dts/rk3288-firefly-reload.dts
index 1574383fd..8c38bda21 100644
--- a/arch/arm/boot/dts/rk3288-firefly-reload.dts
+++ b/arch/arm/boot/dts/rk3288-firefly-reload.dts
@@ -234,6 +234,7 @@
 };
 
 &saradc {
+	vref-supply = <&vcc_18>;
 	status = "okay";
 };
 
-- 
2.11.0