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-rw-r--r--drivers/opp/core.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index ae5949656d77..00d5911b20f8 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1636,6 +1636,12 @@ static bool _opp_supported_by_regulators(struct dev_pm_opp *opp,
return true;
}
+/*
+ * Returns
+ * 0: opp1 == opp2
+ * 1: opp1 > opp2
+ * -1: opp1 < opp2
+ */
int _opp_compare_key(struct dev_pm_opp *opp1, struct dev_pm_opp *opp2)
{
if (opp1->rate != opp2->rate)