| Message ID | 20201104234427.26477-5-digetx@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | Introduce core voltage scaling for NVIDIA Tegra20/30 SoCs | expand |
On Thu, 05 Nov 2020 02:44:01 +0300, Dmitry Osipenko wrote: > Document new DVFS OPP table and voltage regulator properties of the > video decoder engine. > > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > .../devicetree/bindings/media/nvidia,tegra-vde.txt | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt b/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt index 602169b8aa19..9854fa9d3cd3 100644 --- a/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt +++ b/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt @@ -36,6 +36,16 @@ Optional properties: - reset-names : Must include the following entries: - mc - iommus: Must contain phandle to the IOMMU device node. +- operating-points-v2: See ../bindings/opp/opp.txt for details. +- core-supply: Phandle to voltage regulator of the SoC "core" power domain. + +For each opp entry in 'operating-points-v2' table: +- opp-supported-hw: One bitfield indicating: + On Tegra20: SoC process ID mask + On Tegra30+: SoC speedo ID mask + + A bitwise AND is performed against the value and if any bit + matches, the OPP gets enabled. Example: @@ -61,4 +71,6 @@ video-codec@6001a000 { reset-names = "vde", "mc"; resets = <&tegra_car 61>, <&mc TEGRA20_MC_RESET_VDE>; iommus = <&mc TEGRA_SWGROUP_VDE>; + operating-points-v2 = <&dvfs_opp_table>; + core-supply = <&vdd_core>; };
Document new DVFS OPP table and voltage regulator properties of the video decoder engine. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- .../devicetree/bindings/media/nvidia,tegra-vde.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+)