On Tue, Feb 12, 2019 at 03:20:00PM +0100, Geert Uytterhoeven wrote:
> Describe the ON Semiconductor PCA9654 I/O expander on the first I2C
> bus, which provides 8 extra GPIOs.
> 
> Signed-off-by: Geert Uytterhoeven <geert+rene...@glider.be>

Thanks,

This looks fine to me but I will wait to see if there are other reviews
before applying.

Reviewed-by: Simon Horman <horms+rene...@verge.net.au>

> ---
> GPIOs 5-7 are accessible on test points CP16, CP17, and CP72.
> 
> Output tested with a multi-meter using /sys/class/gpio/.
> Input and interrupt capability tested using gpio-keys.
> ---
>  arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts 
> b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
> index 5ac159b7830d58c1..b5c0dbf4982febd0 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
> @@ -337,6 +337,15 @@
>  &i2c0 {
>       status = "okay";
>  
> +     io_expander: gpio@20 {
> +             compatible = "onnn,pca9654";
> +             reg = <0x20>;
> +             gpio-controller;
> +             #gpio-cells = <2>;
> +             interrupt-parent = <&gpio2>;
> +             interrupts = <22 IRQ_TYPE_LEVEL_LOW>;
> +     };
> +
>       hdmi-encoder@39 {
>               compatible = "adi,adv7511w";
>               reg = <0x39>;
> -- 
> 2.17.1
> 

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