Add a phandle to the MT8195_POWER_DOMAIN_MFG1 power domain and
assign the GPU SRAM (vsram_others) supply to that in mt8195-cherry:
this allows to keep the sram powered up while the GPU is used.
This means that it's now possible to remove the regulator-always-on
property from the mt6359_vsram_others_ldo_reg vreg, so that it will
be switched on and off during suspend.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 5 ++++-
arch/arm64/boot/dts/mediatek/mt8195.dtsi | 2 +-
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index 26213100419a..9d0f3d25cb07 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -482,6 +482,10 @@ &mfg0 {
domain-supply = <&mt6315_7_vbuck1>;
};
+&mfg1 {
+ domain-supply = <&mt6359_vsram_others_ldo_reg>;
+};
+
&mmc0 {
status = "okay";
@@ -552,7 +556,6 @@ &mt6359_vrf12_ldo_reg {
/* for GPU SRAM */
&mt6359_vsram_others_ldo_reg {
- regulator-always-on;
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <750000>;
};
diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
index 79934cf051b9..8136d7631166 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
@@ -538,7 +538,7 @@ mfg0: power-domain@MT8195_POWER_DOMAIN_MFG0 {
#size-cells = <0>;
#power-domain-cells = <1>;
- power-domain@MT8195_POWER_DOMAIN_MFG1 {
+ mfg1: power-domain@MT8195_POWER_DOMAIN_MFG1 {
reg = <MT8195_POWER_DOMAIN_MFG1>;
clocks = <&apmixedsys CLK_APMIXED_MFGPLL>,
<&topckgen CLK_TOP_MFG_CORE_TMP>;
--
2.42.0
