arm64: dts: mediatek: mt8192-asurada: Update min voltage constraint for MT6315

[ Upstream commit 374a7c6400e314458178255a63c37d6347845092 ]

Update the minimum voltage from 300000 uV to 400000 uV so it matches
the MT6315 datasheet.

Also update the minimum voltage for Vgpu regulator from 606250 uV to
400000 uV because the requested voltage could be lower than the minimum
voltage on the GPU OPP table when the MTK Smart Voltage Scaling (SVS)
driver is enabled.

Fixes: 3183cb62b033 ("arm64: dts: mediatek: asurada: Add SPMI regulators")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240315111621.2263159-2-treapking@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index 4bd1494b354c0e104a5e5b943dbb9616783a5fb9..dc39ebd1bbfc86115bd7579e40456ef291624868 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -1392,7 +1392,7 @@
                        mt6315_6_vbuck1: vbuck1 {
                                regulator-compatible = "vbuck1";
                                regulator-name = "Vbcpu";
-                               regulator-min-microvolt = <300000>;
+                               regulator-min-microvolt = <400000>;
                                regulator-max-microvolt = <1193750>;
                                regulator-enable-ramp-delay = <256>;
                                regulator-allowed-modes = <0 1 2>;
@@ -1402,7 +1402,7 @@
                        mt6315_6_vbuck3: vbuck3 {
                                regulator-compatible = "vbuck3";
                                regulator-name = "Vlcpu";
-                               regulator-min-microvolt = <300000>;
+                               regulator-min-microvolt = <400000>;
                                regulator-max-microvolt = <1193750>;
                                regulator-enable-ramp-delay = <256>;
                                regulator-allowed-modes = <0 1 2>;
@@ -1419,7 +1419,7 @@
                        mt6315_7_vbuck1: vbuck1 {
                                regulator-compatible = "vbuck1";
                                regulator-name = "Vgpu";
-                               regulator-min-microvolt = <606250>;
+                               regulator-min-microvolt = <400000>;
                                regulator-max-microvolt = <800000>;
                                regulator-enable-ramp-delay = <256>;
                                regulator-allowed-modes = <0 1 2>;