linux-kernel - [PATCH 1/3] ARM: dts: stm32: Enable VREFBUF on stm32mp157a-dk1

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Message-ID: <1568385280-2633-2-git-send-email-fabrice.gasnier@st.com>
Date:   Fri, 13 Sep 2019 16:34:38 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     <alexandre.torgue@...com>
CC:     <robh+dt@...nel.org>, <mcoquelin.stm32@...il.com>,
        <mark.rutland@....com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <fabrice.gasnier@...com>
Subject: [PATCH 1/3] ARM: dts: stm32: Enable VREFBUF on stm32mp157a-dk1

Enable VREFBUF as ADC/DAC uses it on stm32mp157a-dk1 board.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
---
 arch/arm/boot/dts/stm32mp157a-dk1.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157a-dk1.dts b/arch/arm/boot/dts/stm32mp157a-dk1.dts
index 0615d1c..ebd9f33 100644
--- a/arch/arm/boot/dts/stm32mp157a-dk1.dts
+++ b/arch/arm/boot/dts/stm32mp157a-dk1.dts
@@ -449,3 +449,10 @@
 	pinctrl-0 = <&uart4_pins_a>;
 	status = "okay";
 };
+
+&vrefbuf {
+	regulator-min-microvolt = <2500000>;
+	regulator-max-microvolt = <2500000>;
+	vdda-supply = <&vdd>;
+	status = "okay";
+};
-- 
2.7.4