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path: root/drivers/opp/debugfs.c
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Diffstat (limited to 'drivers/opp/debugfs.c')
-rw-r--r--drivers/opp/debugfs.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/opp/debugfs.c b/drivers/opp/debugfs.c
index b03c03576a62..e6828e5f81b0 100644
--- a/drivers/opp/debugfs.c
+++ b/drivers/opp/debugfs.c
@@ -77,10 +77,21 @@ int opp_debug_create_one(struct dev_pm_opp *opp, struct opp_table *opp_table)
{
struct dentry *pdentry = opp_table->dentry;
struct dentry *d;
+ unsigned long id;
char name[25]; /* 20 chars for 64 bit value + 5 (opp:\0) */
- /* Rate is unique to each OPP, use it to give opp-name */
- snprintf(name, sizeof(name), "opp:%lu", opp->rate);
+ /*
+ * Get directory name for OPP.
+ *
+ * - Normally rate is unique to each OPP, use it to get unique opp-name.
+ * - For some devices rate isn't available, use index instead.
+ */
+ if (likely(opp->rate))
+ id = opp->rate;
+ else
+ id = _get_opp_count(opp_table);
+
+ snprintf(name, sizeof(name), "opp:%lu", id);
/* Create per-opp directory */
d = debugfs_create_dir(name, pdentry);