| Message ID | 20230223134345.82625-6-angelogioacchino.delregno@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Enable GPU with DVFS support on MediaTek SoCs | expand |
On Thu, Feb 23, 2023 at 9:43 PM AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> wrote: > > 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> > --- > arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts > index 52dc4a50e34d..fd327437e932 100644 > --- a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts > +++ b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts > @@ -52,7 +52,6 @@ &auxadc { > > &gpu { > mali-supply = <&mt6358_vgpu_reg>; > - sram-supply = <&mt6358_vsram_gpu_reg>; > }; > > &i2c0 { > @@ -138,6 +137,16 @@ &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>; Should we also fix up the constraints? ChenYu > +}; > + > &pio { > i2c_pins_0: i2c0{ > pins_i2c{ > -- > 2.39.2 >
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts index 52dc4a50e34d..fd327437e932 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts +++ b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts @@ -52,7 +52,6 @@ &auxadc { &gpu { mali-supply = <&mt6358_vgpu_reg>; - sram-supply = <&mt6358_vsram_gpu_reg>; }; &i2c0 { @@ -138,6 +137,16 @@ &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{
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> --- arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)