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 <[email protected]> --- arch/arm/boot/dts/sun9i-a80-optimus.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+) 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"; + }; }; }; -- 2.1.1 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
