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Diffstat (limited to 'drivers/opp/core.c')
-rw-r--r--drivers/opp/core.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index e366218d6736..b335c077f215 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -893,6 +893,16 @@ static int _set_required_opps(struct device *dev,
if (!required_opp_tables)
return 0;
+ /*
+ * We only support genpd's OPPs in the "required-opps" for now, as we
+ * don't know much about other use cases. Error out if the required OPP
+ * doesn't belong to a genpd.
+ */
+ if (unlikely(!required_opp_tables[0]->is_genpd)) {
+ dev_err(dev, "required-opps don't belong to a genpd\n");
+ return -ENOENT;
+ }
+
/* required-opps not fully initialized yet */
if (lazy_linking_pending(opp_table))
return -EBUSY;