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arm64: dts: renesas: eagle: add I2C0 support 

Define the Eagle board dependent part of the I2C0 device node.

The I2C0 bus is populated by ON Semiconductor PCA9653 I/O expander and
Analog Devices ADV7511W HDMI transmitter (but we're only describing the
former chip now).

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Sergei Shtylyov 2018-03-03 22:07:16 +03:00 committed by Simon Horman
parent cbfa278e20
commit 7859eb31e4
1 changed files with 20 additions and 0 deletions
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20
arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
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@ -55,7 +55,27 @@ &extalr_clk {
clock-frequency = <32768>; clock-frequency = <32768>;
}; };
&i2c0 {
pinctrl-0 = <&i2c0_pins>;
pinctrl-names = "default";
status = "okay";
clock-frequency = <400000>;
io_expander: gpio@20 {
compatible = "onnn,pca9654";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;
};
};
&pfc { &pfc {
i2c0_pins: i2c0 {
groups = "i2c0";
function = "i2c0";
};
scif0_pins: scif0 { scif0_pins: scif0 {
groups = "scif0_data"; groups = "scif0_data";
function = "scif0"; function = "scif0";