Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
arm64: dts: mediatek: mt8195-cherry: Assign sram supply to MFG1 pd
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>
+5
-2
+4
-1
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+4
-1
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
···
480
480
domain-supply = <&mt6315_7_vbuck1>;
481
481
};
482
482
483
+
&mfg1 {
484
+
domain-supply = <&mt6359_vsram_others_ldo_reg>;
485
+
};
486
+
483
487
&mmc0 {
484
488
status = "okay";
485
489
···
554
550
555
551
/* for GPU SRAM */
556
552
&mt6359_vsram_others_ldo_reg {
557
-
regulator-always-on;
558
553
regulator-min-microvolt = <750000>;
559
554
regulator-max-microvolt = <750000>;
560
555
};
+1
-1
arch/arm64/boot/dts/mediatek/mt8195.dtsi
+1
-1
arch/arm64/boot/dts/mediatek/mt8195.dtsi
···
538
538
#size-cells = <0>;
539
539
#power-domain-cells = <1>;
540
540
541
-
power-domain@MT8195_POWER_DOMAIN_MFG1 {
541
+
mfg1: power-domain@MT8195_POWER_DOMAIN_MFG1 {
542
542
reg = <MT8195_POWER_DOMAIN_MFG1>;
543
543
clocks = <&apmixedsys CLK_APMIXED_MFGPLL>,
544
544
<&topckgen CLK_TOP_MFG_CORE_TMP>;