[PATCH 1/2] PM / OPP: compatible is an optional property

[Viresh Kumar]

It was never compulsory to have a compatible string in the OPP table.
Fix the documentation to mark it optional.

Also update its description a bit.

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/opp/opp.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt
index ee91cbdd95ee..5eab6f0215d1 100644
--- a/Documentation/devicetree/bindings/opp/opp.txt
+++ b/Documentation/devicetree/bindings/opp/opp.txt
@@ -55,14 +55,14 @@ This describes the OPPs belonging to a device. This node can have following
 properties:
 
 Required properties:
-- compatible: Allow OPPs to express their compatibility. It should be:
-  "operating-points-v2".
-
 - OPP nodes: One or more OPP nodes describing voltage-current-frequency
   combinations. Their name isn't significant but their phandle can be used to
   reference an OPP.
 
 Optional properties:
+- compatible: Allow OPPs to express their compatibility. It should be
+  "operating-points-v2" or a vendor specific string.
+
 - opp-shared: Indicates that device nodes using this OPP Table Node's phandle
   switch their DVFS state together, i.e. they share clock/voltage/current lines.
   Missing property means devices have independent clock/voltage/current lines,
-- 
2.7.1.410.g6faf27b