ARM: dts: sun9i: Enable i2c3 on A80 Optimus board
i2c3 is exposed on the GPIO extension header. Enable it so we can use it.
Also enable internal pull-ups on the pins, as they don't seem to have
external pull-up resistors.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts
index 5d9bc80..955436a 100644
--- a/arch/arm/boot/dts/sun9i-a80-optimus.dts
+++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts
@@ -59,10 +59,23 @@
};
soc {
+ pio: pinctrl@06000800 {
+ i2c3_pins_a: i2c3@0 {
+ /* Enable internal pull-up */
+ allwinner,pull = <1>;
+ };
+ };
+
uart0: serial@07000000 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
status = "okay";
};
+
+ i2c3: i2c@07003400 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c3_pins_a>;
+ status = "okay";
+ };
};
};