[PATCH v1 04/30] media: dt: bindings: tegra-vde: Document OPP and voltage regulator properties

Dmitry Osipenko
2020-11-04T23:50:31Z

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(+)

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>;
};
--
2.27.0