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

[Fabrice Gasnier <fabrice.gasnier@xxxxxx>]

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

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxx>
---
 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