diff mbox series

[v4,04/19] arm64: dts: mt8183-pumpkin: Couple VGPU and VSRAM_GPU regulators

Message ID 20230301095523.428461-5-angelogioacchino.delregno@collabora.com (mailing list archive)
State New, archived
Headers show
Series Enable GPU with DVFS support on MediaTek SoCs | expand

Commit Message

AngeloGioacchino Del Regno March 1, 2023, 9:55 a.m. UTC 
Add coupling for these regulators, as they have a strict voltage output
relation to satisfy in order to ensure GPU stable operation.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
---
 arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
index a1d01639df30..c228f04d086b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
@@ -71,7 +71,6 @@  &auxadc {
 
 &gpu {
 	mali-supply = <&mt6358_vgpu_reg>;
-	sram-supply = <&mt6358_vsram_gpu_reg>;
 };
 
 &i2c0 {
@@ -176,6 +175,16 @@  &mmc1 {
 	non-removable;
 };
 
+&mt6358_vgpu_reg {
+	regulator-coupled-with = <&mt6358_vsram_gpu_reg>;
+	regulator-coupled-max-spread = <100000>;
+};
+
+&mt6358_vsram_gpu_reg {
+	regulator-coupled-with = <&mt6358_vgpu_reg>;
+	regulator-coupled-max-spread = <100000>;
+};
+
 &pio {
 	i2c_pins_0: i2c0 {
 		pins_i2c{