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@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Changes in version 3:
- added Geert's tag.
Changes in version 2:
- refreshed with the patch adding EtherAVB pins removed for now...
arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
Index: renesas/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
+++ renesas/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
@@ -55,7 +55,27 @@
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 {
+ i2c0_pins: i2c0 {
+ groups = "i2c0";
+ function = "i2c0";
+ };
+
scif0_pins: scif0 {
groups = "scif0_data";
function = "scif0";
