Messages in this thread | | | Date | Fri, 24 Feb 2023 14:02:23 +0100 | Subject | Re: [PATCH v2 02/16] arm64: dts: mediatek: mt8183-kukui: Override vgpu/vsram_gpu constraints | From | AngeloGioacchino Del Regno <> |
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Il 24/02/23 10:50, Chen-Yu Tsai ha scritto: > On Thu, Feb 23, 2023 at 9:43 PM AngeloGioacchino Del Regno > <angelogioacchino.delregno@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.
The OPP table that we've got in mt8183.dtsi does not declare frequencies for the highest binning for this SoC, I guess because there was no way to check fuses to restrict the table to bin XYZ.
These maximum voltages are - true - higher compared to the highest voltage in the GPU OPP table, but they're still in spec (check datasheets!).
Should I reword the commit description?
Regards, Angelo
> >> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@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 >>
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