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Diffstat (limited to 'Documentation/devicetree/bindings/opp/opp.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/opp/opp.txt | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt index 4e4f30288c8bb..c396c4c0af92d 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. @@ -159,7 +162,7 @@ Optional properties: - status: Marks the node enabled/disabled. -- required-opp: This contains phandle to an OPP node in another device's OPP +- required-opps: This contains phandle to an OPP node in another device's OPP table. It may contain an array of phandles, where each phandle points to an OPP of a different device. It should not contain multiple phandles to the OPP nodes in the same OPP table. This specifies the minimum required OPP of the |