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arm64: dts: mediatek: mt8195-cherry: Assign sram supply to MFG1 pd

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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.

Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
AngeloGioacchino Del Regno 2023-10-30 14:25:23 +01:00
parent 063821ae4b
commit 3106b14c1c
No known key found for this signature in database
GPG Key ID: 9A3604CFAD978478
2 changed files with 5 additions and 2 deletions
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5
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
View File

@ -480,6 +480,10 @@
domain-supply = <&mt6315_7_vbuck1>;
};
&mfg1 {
domain-supply = <&mt6359_vsram_others_ldo_reg>;
};
&mmc0 {
status = "okay";
@ -550,7 +554,6 @@
/* for GPU SRAM */
&mt6359_vsram_others_ldo_reg {
regulator-always-on;
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <750000>;
};

2
arch/arm64/boot/dts/mediatek/mt8195.dtsi
View File

@ -538,7 +538,7 @@
#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>;