Patch "arm64: dts: mediatek: mt8192-asurada: Fix voltage constraint for Vgpu" has been added to the 6.2-stable tree

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This is a note to let you know that I've just added the patch titled

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

to the 6.2-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm64-dts-mediatek-mt8192-asurada-fix-voltage-constr.patch
and it can be found in the queue-6.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit ed3d3269e36ba3fe74cbca3058482583cf23a660
Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Date:   Wed Mar 1 10:55:15 2023 +0100

    arm64: dts: mediatek: mt8192-asurada: Fix voltage constraint for Vgpu
    
    [ 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: 3183cb62b033 ("arm64: dts: mediatek: asurada: Add SPMI regulators")
    Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
    Reviewed-by: Chen-yu Tsai <wenst@xxxxxxxxxxxx>
    Tested-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230301095523.428461-12-angelogioacchino.delregno@xxxxxxxxxxxxx
    Signed-off-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index 4b314435f8fd6..50367da93cd79 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -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>;
 			};



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