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| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2018-04-06 12:59:55 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2018-05-09 10:14:56 +0530 |
| commit | b89469bdf0c2025a1c1f6ce2b841cb8abe589688 (patch) | |
| tree | 65974a56e6fda003c321e5cebecfb979c166df85 /Documentation/devicetree/bindings/opp | |
| parent | PM / OPP: dt-bindings: Rename "required-opp" as "required-opps" (diff) | |
| download | linux-dev-b89469bdf0c2025a1c1f6ce2b841cb8abe589688.tar.xz linux-dev-b89469bdf0c2025a1c1f6ce2b841cb8abe589688.zip | |
PM / OPP: dt-bindings: Make "opp-hz" optional for power domains
The "opp-hz" property is not relevant across all the devices that use
the OPP tables now. For example, for a power domain a frequency value
wouldn't mean anything. Though they must have another property, which
may be implementation defined, which uniquely identifies the OPP nodes.
Make "opp-hz" optional for such devices.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/opp')
| -rw-r--r-- | Documentation/devicetree/bindings/opp/opp.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt index 788052d66c9d..c396c4c0af92 100644 --- a/Documentation/devicetree/bindings/opp/opp.txt +++ b/Documentation/devicetree/bindings/opp/opp.txt @@ -82,7 +82,10 @@ This defines voltage-current-frequency combinations along with other related properties. Required properties: -- opp-hz: Frequency in Hz, expressed as a 64-bit big-endian integer. +- opp-hz: Frequency in Hz, expressed as a 64-bit big-endian integer. This is a + required property for all device nodes but devices like power domains. The + power domain nodes must have another (implementation dependent) property which + uniquely identifies the OPP nodes. Optional properties: - opp-microvolt: voltage in micro Volts. |