CC Wolfram
On Wed, Aug 25, 2021 at 2:28 PM Adam Ford <aford173@xxxxxxxxx> wrote:
> The desired i2c2 speed is 400KHz, but when measured on a scope, it
> is incorrect. The driver can use the i2c-scl-rising-time-ns to help
> calculate the proper setting to get exactly 400KHz.
>
> Fixes: 900d9fc3bece ("arm64: dts: renesas: beacon: Correct I2C bus speeds")
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
>
> diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi
> index 2692cc64bff6..987357c58390 100644
> --- a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi
> +++ b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi
> @@ -328,6 +328,7 @@ &hsusb {
> &i2c2 {
> status = "okay";
> clock-frequency = <400000>;
> + i2c-scl-rising-time-ns = <50>;
> pinctrl-0 = <&i2c2_pins>;
> pinctrl-names = "default";
>
> --
> 2.25.1
