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arm64: dts: renesas: r8a77990: ebisu: Add GPIO expander 

Describe the ON Semiconductor PCA9654 I/O expander on the first I2C
bus, which provides 8 extra GPIOs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Geert Uytterhoeven 2019-02-12 15:20:00 +01:00 committed by Simon Horman
parent 9e98c678c2
commit 6fffb98645
1 changed files with 9 additions and 0 deletions
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arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
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@ -337,6 +337,15 @@ &hsusb {
&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>;