linux-kernel - [PATCH 2/6] arm64: dts: exynos: add ADC supply on Exynos7 Espresso

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Message-Id: <20230120173116.341270-2-krzysztof.kozlowski@linaro.org>
Date:   Fri, 20 Jan 2023 18:31:12 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Sam Protsenko <semen.protsenko@...aro.org>,
        Chanho Park <chanho61.park@...sung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 2/6] arm64: dts: exynos: add ADC supply on Exynos7 Espresso

ADC requires supply and it seems LDO3 (same as on Exynos5433 TM2 boards)
fits in voltage range of 1.8 V.  Use it to silence warning:

  exynos7-espresso.dtb: adc@...20000: 'vdd-supply' is a required property

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index 829657c9c7ca..abb3bd700d6f 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -78,6 +78,7 @@ &watchdog {
 };
 
 &adc {
+	vdd-supply = <&ldo3_reg>;
 	status = "okay";
 };
 
-- 
2.34.1