arm64: dts: renesas: condor: add I2C0 support

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

The I2C0 bus is populated by 2 ON Semiconductor PCA9654 I/O expanders
and Analog Devices  ADV7511W HDMI transmitter (but we're only describing
the former chips now).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/r8a77980-condor.dts b/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
index 0b93a7d..cc3ee25 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77980-condor.dts
@@ -80,6 +80,28 @@
        clock-frequency = <32768>;
 };
 
+&i2c0 {
+       pinctrl-0 = <&i2c0_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+       clock-frequency = <400000>;
+
+       io_expander0: gpio@20 {
+               compatible = "onnn,pca9654";
+               reg = <0x20>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+
+       io_expander1: gpio@21 {
+               compatible = "onnn,pca9654";
+               reg = <0x21>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+};
+
 &mmc0 {
        pinctrl-0 = <&mmc_pins>;
        pinctrl-1 = <&mmc_pins_uhs>;
@@ -104,6 +126,11 @@
                function = "canfd0";
        };
 
+       i2c0_pins: i2c0 {
+               groups = "i2c0";
+               function = "i2c0";
+       };
+
        mmc_pins: mmc {
                groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
                function = "mmc";