ARM: dts: sun7i: set proper lradc vref on OLinuXino Lime2

The lradc's analog reference voltage is set to 3.0 volt in the
hardware. This is more or less set in copper for at least lradc0. Set the
property in the dts to ensure the lradc is referenced properly.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
index b828677f331d5d6c89763d3e5a76d1779bd583af..fbdb6faffcd48ce46c76872a316cbae44a4962a1 100644 (file)
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
@@ -154,6 +154,10 @@
        };
 };
 
+&lradc {
+       vref-supply = <&reg_vcc3v0>;
+};
+
 &mmc0 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc0_pins_a>;