[Linux-stm32] [PATCH 2/2] ARM: dts: stm32: Add DAC support to stm32mp157c-ed1

[Fabrice Gasnier]

stm32mp157c-ed1 board has digital-to-analog converter signals routed
to JP11 and JP10 jumpers (e.g. PA4/PA5).
It's easier then to configure them both. But keep them disabled by default,
so the pins are kept in their initial state to lower power consumption.
This way they can also be used as GPIO.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier at st.com>
---
 arch/arm/boot/dts/stm32mp157c-ed1.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index 1d426ea..2b40ad9 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -104,6 +104,19 @@
 	};
 };
 
+&dac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&dac_ch1_pins_a &dac_ch2_pins_a>;
+	vref-supply = <&vdda>;
+	status = "disabled";
+	dac1: dac at 1 {
+		status = "okay";
+	};
+	dac2: dac at 2 {
+		status = "okay";
+	};
+};
+
 &dts {
 	status = "okay";
 };
-- 
2.7.4