| Message ID | 20210510211008.30300-5-digetx@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Daniel Lezcano |
| Headers | show |
| Series | Add thermal cooling support to NVIDIA Tegra devfreq | expand |
On Tue, 11 May 2021 00:10:05 +0300, Dmitry Osipenko wrote: > The ACTMON watches activity of memory clients. Decisions about a minimum > required frequency are made based on the info from ACTMON. We can use > ACTMON as a thermal cooling device by limiting the required frequency. > Document new cooling-cells property of NVIDIA Tegra ACTMON hardware unit. > > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > .../devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml | 5 +++++ > 1 file changed, 5 insertions(+) > Reviewed-by: Rob Herring <robh@kernel.org>
On 5/11/21 6:10 AM, Dmitry Osipenko wrote: > The ACTMON watches activity of memory clients. Decisions about a minimum > required frequency are made based on the info from ACTMON. We can use > ACTMON as a thermal cooling device by limiting the required frequency. > Document new cooling-cells property of NVIDIA Tegra ACTMON hardware unit. > > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > .../devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml > index 2a940d5d7ab4..0aa9459b7751 100644 > --- a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml > +++ b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml > @@ -63,6 +63,9 @@ properties: > Should contain freqs and voltages and opp-supported-hw property, which > is a bitfield indicating SoC speedo ID mask. > > + "#cooling-cells": > + const: 2 > + > required: > - compatible > - reg > @@ -74,6 +77,7 @@ required: > - interconnects > - interconnect-names > - operating-points-v2 > + - "#cooling-cells" > > additionalProperties: false > > @@ -118,4 +122,5 @@ examples: > operating-points-v2 = <&dvfs_opp_table>; > interconnects = <&mc TEGRA30_MC_MPCORER &emc>; > interconnect-names = "cpu-read"; > + #cooling-cells = <2>; > }; > Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
On Tue, May 11, 2021 at 12:10:05AM +0300, Dmitry Osipenko wrote: > The ACTMON watches activity of memory clients. Decisions about a minimum > required frequency are made based on the info from ACTMON. We can use > ACTMON as a thermal cooling device by limiting the required frequency. > Document new cooling-cells property of NVIDIA Tegra ACTMON hardware unit. > > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > .../devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml | 5 +++++ > 1 file changed, 5 insertions(+) Acked-by: Thierry Reding <treding@nvidia.com>
diff --git a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml index 2a940d5d7ab4..0aa9459b7751 100644 --- a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml +++ b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml @@ -63,6 +63,9 @@ properties: Should contain freqs and voltages and opp-supported-hw property, which is a bitfield indicating SoC speedo ID mask. + "#cooling-cells": + const: 2 + required: - compatible - reg @@ -74,6 +77,7 @@ required: - interconnects - interconnect-names - operating-points-v2 + - "#cooling-cells" additionalProperties: false @@ -118,4 +122,5 @@ examples: operating-points-v2 = <&dvfs_opp_table>; interconnects = <&mc TEGRA30_MC_MPCORER &emc>; interconnect-names = "cpu-read"; + #cooling-cells = <2>; };
The ACTMON watches activity of memory clients. Decisions about a minimum required frequency are made based on the info from ACTMON. We can use ACTMON as a thermal cooling device by limiting the required frequency. Document new cooling-cells property of NVIDIA Tegra ACTMON hardware unit. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- .../devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml | 5 +++++ 1 file changed, 5 insertions(+)