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From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
To: matthias.bgg@gmail.com
Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
angelogioacchino.delregno@collabora.com,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
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linux-mediatek@lists.infradead.org, wenst@chromium.org
Subject: [PATCH v4 19/19] arm64: dts: mediatek: mt8183-evb: Override
vgpu/vsram_gpu constraints
Date: Wed, 1 Mar 2023 10:55:23 +0100
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Enable GPU with DVFS support on MediaTek SoCs
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Commit Message
AngeloGioacchino Del Regno
March 1, 2023, 9:55 a.m. UTC
Override the PMIC-default voltage constraints for VGPU and VSRAM_GPU with the platform specific vmin/vmax for the highest possible SoC binning. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Suggested-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> --- arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts index fd327437e932..3e3f4b1b00f0 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts +++ b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts @@ -138,11 +138,17 @@ &mmc1 { }; &mt6358_vgpu_reg { + regulator-min-microvolt = <625000>; + regulator-max-microvolt = <900000>; + regulator-coupled-with = <&mt6358_vsram_gpu_reg>; regulator-coupled-max-spread = <100000>; }; &mt6358_vsram_gpu_reg { + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1000000>; + regulator-coupled-with = <&mt6358_vgpu_reg>; regulator-coupled-max-spread = <100000>; };