Hi Wolfram Sang,
Thanks for the work.
> -----Original Message-----
> From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
> Sent: 20 November 2024 08:50
> Subject: [PATCH] arm64: dts: renesas: rzg3s-smarc: Enable I2C1 and connected power monitor
>
> 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>;
> + };
> +};
How do we test this interface in linux? So far we use windows app to monitor the current.
Cheers,
Biju
> +
> &pinctrl {
> key-1-gpio-hog {
> gpio-hog;
> --
> 2.45.2
>
