diff mbox series

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

Message ID 20201104234427.26477-5-digetx@gmail.com (mailing list archive)
State Not Applicable
Headers show
Series Introduce core voltage scaling for NVIDIA Tegra20/30 SoCs | expand

Commit Message

Dmitry Osipenko Nov. 4, 2020, 11:44 p.m. UTC
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(+)

Comments

Rob Herring Nov. 9, 2020, 7:01 p.m. UTC | #1
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 mbox series

Patch

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>;
 };