| Message ID | 20210523231335.8238-13-digetx@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | NVIDIA Tegra memory and power management changes for 5.14 | expand |
On Mon, 24 May 2021 at 01:13, Dmitry Osipenko <digetx@gmail.com> wrote: > > All NVIDIA Tegra SoCs have a core power domain where majority of hardware > blocks reside. Document the new core power domain properties. > > Reviewed-by: Rob Herring <robh@kernel.org> > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Kind regards Uffe > --- > .../arm/tegra/nvidia,tegra20-pmc.yaml | 35 +++++++++++++++++++ > 1 file changed, 35 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml > index 43fd2f8927d0..0afec83cc723 100644 > --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml > +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml > @@ -301,6 +301,33 @@ patternProperties: > > additionalProperties: false > > + core-domain: > + type: object > + description: | > + The vast majority of hardware blocks of Tegra SoC belong to a > + Core power domain, which has a dedicated voltage rail that powers > + the blocks. > + > + properties: > + operating-points-v2: > + description: > + Should contain level, voltages and opp-supported-hw property. > + The supported-hw is a bitfield indicating SoC speedo or process > + ID mask. > + > + "#power-domain-cells": > + const: 0 > + > + required: > + - operating-points-v2 > + - "#power-domain-cells" > + > + additionalProperties: false > + > + core-supply: > + description: > + Phandle to voltage regulator connected to the SoC Core power rail. > + > required: > - compatible > - reg > @@ -325,6 +352,7 @@ examples: > tegra_pmc: pmc@7000e400 { > compatible = "nvidia,tegra210-pmc"; > reg = <0x7000e400 0x400>; > + core-supply = <®ulator>; > clocks = <&tegra_car TEGRA210_CLK_PCLK>, <&clk32k_in>; > clock-names = "pclk", "clk32k_in"; > #clock-cells = <1>; > @@ -338,17 +366,24 @@ examples: > nvidia,core-power-req-active-high; > nvidia,sys-clock-req-active-high; > > + pd_core: core-domain { > + operating-points-v2 = <&core_opp_table>; > + #power-domain-cells = <0>; > + }; > + > powergates { > pd_audio: aud { > clocks = <&tegra_car TEGRA210_CLK_APE>, > <&tegra_car TEGRA210_CLK_APB2APE>; > resets = <&tegra_car 198>; > + power-domains = <&pd_core>; > #power-domain-cells = <0>; > }; > > pd_xusbss: xusba { > clocks = <&tegra_car TEGRA210_CLK_XUSB_SS>; > resets = <&tegra_car TEGRA210_CLK_XUSB_SS>; > + power-domains = <&pd_core>; > #power-domain-cells = <0>; > }; > }; > -- > 2.30.2 >
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml index 43fd2f8927d0..0afec83cc723 100644 --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml @@ -301,6 +301,33 @@ patternProperties: additionalProperties: false + core-domain: + type: object + description: | + The vast majority of hardware blocks of Tegra SoC belong to a + Core power domain, which has a dedicated voltage rail that powers + the blocks. + + properties: + operating-points-v2: + description: + Should contain level, voltages and opp-supported-hw property. + The supported-hw is a bitfield indicating SoC speedo or process + ID mask. + + "#power-domain-cells": + const: 0 + + required: + - operating-points-v2 + - "#power-domain-cells" + + additionalProperties: false + + core-supply: + description: + Phandle to voltage regulator connected to the SoC Core power rail. + required: - compatible - reg @@ -325,6 +352,7 @@ examples: tegra_pmc: pmc@7000e400 { compatible = "nvidia,tegra210-pmc"; reg = <0x7000e400 0x400>; + core-supply = <®ulator>; clocks = <&tegra_car TEGRA210_CLK_PCLK>, <&clk32k_in>; clock-names = "pclk", "clk32k_in"; #clock-cells = <1>; @@ -338,17 +366,24 @@ examples: nvidia,core-power-req-active-high; nvidia,sys-clock-req-active-high; + pd_core: core-domain { + operating-points-v2 = <&core_opp_table>; + #power-domain-cells = <0>; + }; + powergates { pd_audio: aud { clocks = <&tegra_car TEGRA210_CLK_APE>, <&tegra_car TEGRA210_CLK_APB2APE>; resets = <&tegra_car 198>; + power-domains = <&pd_core>; #power-domain-cells = <0>; }; pd_xusbss: xusba { clocks = <&tegra_car TEGRA210_CLK_XUSB_SS>; resets = <&tegra_car TEGRA210_CLK_XUSB_SS>; + power-domains = <&pd_core>; #power-domain-cells = <0>; }; };