Enable I2C1 for the carrier board and the connected power monitor
ISL28022. Limit the bus speed to the maximum the power monitor supports.
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---
i2c1 gets enabled in the current SoM-DTSI as well, but to be safe
regarding other SoM DTSIs to come, I opted for explicitly enabling it in
the carrier board as well.
I picked the 'average-samples' value using my gut feeling. If someone
has a reason to pick a better one, I am all for it.
arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
index 7945d44e6ee1..5e4bfaeafd20 100644
--- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
@@ -73,6 +73,19 @@ &i2c0 {
clock-frequency = <1000000>;
};
+&i2c1 {
+ status = "okay";
+
+ clock-frequency = <400000>;
+
+ power-monitor@44 {
+ compatible = "renesas,isl28022";
+ reg = <0x44>;
+ shunt-resistor-micro-ohms = <8000>;
+ renesas,average-samples = <32>;
+ };
+};
+
&pinctrl {
key-1-gpio-hog {
gpio-hog;
--
2.45.2
