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arm64: dts: mediatek: mt8192-asurada: Fix voltage constraint for Vgpu

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[ Upstream commit ff4c868ba8df9dcd144ab4943a50adca1cf33ba2 ]

The MT8192 SoC specifies a maximum voltage for the GPU's digital supply
of 0.88V and the GPU OPPs are declaring a maximum voltage of 0.80V.

In order to keep the GPU voltage in the safe range, change the maximum
voltage for mt6315@7's vbuck1 to 0.80V as sending, for any mistake,
1.193V would be catastrophic.

Fixes: 3183cb62b0 ("arm64: dts: mediatek: asurada: Add SPMI regulators")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20230301095523.428461-12-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
AngeloGioacchino Del Regno 2023-03-01 10:55:15 +01:00 committed by Greg Kroah-Hartman
parent 82f6ffb8e0
commit 1a258bfa00
1 changed files with 1 additions and 1 deletions
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arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
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@ -935,7 +935,7 @@ mt6315_7_vbuck1: vbuck1 {
regulator-compatible = "vbuck1";
regulator-name = "Vgpu";
regulator-min-microvolt = <606250>;
regulator-max-microvolt = <1193750>;
regulator-max-microvolt = <800000>;
regulator-enable-ramp-delay = <256>;
regulator-allowed-modes = <0 1 2>;
};