[PATCH v2 02/16] arm64: dts: mediatek: mt8183-kukui: Override vgpu/vsram_gpu constraints

Chen-Yu Tsai wenst at chromium.org
Fri Feb 24 01:50:52 PST 2023


On Thu, Feb 23, 2023 at 9:43 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno at collabora.com> wrote:
>
> Override the PMIC-default voltage constraints for VGPU and VSRAM_GPU
> with the platform specific vmin/vmax for the highest possible SoC
> binning.

The maximum voltage numbers don't match the existing OPP table though.

> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
> ---
>  arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> index de9778c85b94..63952c1251df 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> @@ -401,6 +401,9 @@ &mt6358codec {
>  };
>
>  &mt6358_vgpu_reg {
> +       regulator-min-microvolt = <625000>;
> +       regulator-max-microvolt = <900000>;
> +
>         regulator-coupled-with = <&mt6358_vsram_gpu_reg>;
>         regulator-coupled-max-spread = <100000>;
>  };
> @@ -416,6 +419,9 @@ &mt6358_vsim2_reg {
>  };
>
>  &mt6358_vsram_gpu_reg {
> +       regulator-min-microvolt = <850000>;
> +       regulator-max-microvolt = <1000000>;
> +
>         regulator-coupled-with = <&mt6358_vgpu_reg>;
>         regulator-coupled-max-spread = <100000>;
>  };
> --
> 2.39.2
>



More information about the linux-arm-kernel mailing list