[PATCH v2 2/4] arm64: dts: mediatek: mt8195-cherry: Update min voltage constraint for MT6315

Pin-yen Lin posted 4 patches 6 months, 1 week ago
[PATCH v2 2/4] arm64: dts: mediatek: mt8195-cherry: Update min voltage constraint for MT6315
Posted by Pin-yen Lin 6 months, 1 week ago
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 625000 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: 260c04d425eb ("arm64: dts: mediatek: cherry: Enable MT6315 regulators on SPMI bus")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
---

Changes in v2:
- New in v2

 arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index f94c07f8b933..c0223f84b45b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -1214,7 +1214,7 @@ regulators {
 			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-ramp-delay = <6250>;
@@ -1232,7 +1232,7 @@ regulators {
 			mt6315_7_vbuck1: vbuck1 {
 				regulator-compatible = "vbuck1";
 				regulator-name = "Vgpu";
-				regulator-min-microvolt = <625000>;
+				regulator-min-microvolt = <400000>;
 				regulator-max-microvolt = <1193750>;
 				regulator-enable-ramp-delay = <256>;
 				regulator-ramp-delay = <6250>;
-- 
2.44.0.291.gc1ea87d7ee-goog
Re: [PATCH v2 2/4] arm64: dts: mediatek: mt8195-cherry: Update min voltage constraint for MT6315
Posted by AngeloGioacchino Del Regno 6 months, 1 week ago
Il 15/03/24 12:16, Pin-yen Lin ha scritto:
> 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 625000 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: 260c04d425eb ("arm64: dts: mediatek: cherry: Enable MT6315 regulators on SPMI bus")
> Signed-off-by: Pin-yen Lin <treapking@chromium.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>