Re: [PATCH 2/5] arm64: dts: exynos: gs101: fix usi8 default mode

[Tudor Ambarus]

On 1/27/24 00:35, André Draszik wrote:
> While commit 6d44d1a1fb62 ("arm64: dts: exynos: gs101: define USI8 with
> I2C configuration") states that the USI8 CONFIG is 0 at reset, the boot
> loader has configured it by the time Linux runs and it has a different
> value at this stage.
> 

ah, I didn't think about this, nor checked it.

> Since we want board DTS files to explicitly select the mode, we should
> set it to none here so as to ensure things don't work by accident and
> to make it clear that board DTS actually need to set the mode based on
> the configuration.
> 
> Fixes: 6d44d1a1fb62 ("arm64: dts: exynos: gs101: define USI8 with I2C configuration")
> Signed-off-by: André Draszik <andre.draszik@xxxxxxxxxx>

Reviewed-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>

> ---
>  arch/arm64/boot/dts/exynos/google/gs101.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
> index aaac04df5e65..bc251e565be6 100644
> --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi
> +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
> @@ -384,6 +384,7 @@ usi8: usi@109700c0 {
>  				 <&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP0_IPCLK_7>;
>  			clock-names = "pclk", "ipclk";
>  			samsung,sysreg = <&sysreg_peric0 0x101c>;
> +			samsung,mode = <USI_V2_NONE>;
>  			status = "disabled";
>  
>  			hsi2c_8: i2c@10970000 {