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-rw-r--r--Documentation/power/opp.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt
index 44d87ad3cea9..cd445582d1f8 100644
--- a/Documentation/power/opp.txt
+++ b/Documentation/power/opp.txt
@@ -37,6 +37,9 @@ Typical usage of the OPP library is as follows:
37SoC framework -> modifies on required cases certain OPPs -> OPP layer 37SoC framework -> modifies on required cases certain OPPs -> OPP layer
38 -> queries to search/retrieve information -> 38 -> queries to search/retrieve information ->
39 39
40Architectures that provide a SoC framework for OPP should select ARCH_HAS_OPP
41to make the OPP layer available.
42
40OPP layer expects each domain to be represented by a unique device pointer. SoC 43OPP layer expects each domain to be represented by a unique device pointer. SoC
41framework registers a set of initial OPPs per device with the OPP layer. This 44framework registers a set of initial OPPs per device with the OPP layer. This
42list is expected to be an optimally small number typically around 5 per device. 45list is expected to be an optimally small number typically around 5 per device.