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@xxxxxxxxx>
---
.../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>;
};
--
2.30.2
