Thread (1 message) 1 message, 1 author, 2021-09-09
STALE1749d REVIEWED: 8 (7M)

[PATCH AUTOSEL 5.10 116/176] opp: Don't print an error if required-opps is missing

From: Sasha Levin <sashal@kernel.org>
Date: 2021-09-09 12:45:54
Also in: lkml, stable
Subsystem: operating performance points (opp), the rest · Maintainers: Viresh Kumar, Nishanth Menon, Stephen Boyd, Linus Torvalds

From: Rajendra Nayak <redacted>

[ Upstream commit 020d86fc0df8b865f6dc168d88a7c2dccabd0a9e ]

The 'required-opps' property is considered optional, hence remove
the pr_err() in of_parse_required_opp() when we find the property is
missing.
While at it, also fix the return value of
of_get_required_opp_performance_state() when of_parse_required_opp()
fails, return a -ENODEV instead of the -EINVAL.

Signed-off-by: Rajendra Nayak <redacted>
Reviewed-by: Ulf Hansson <redacted>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <redacted>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/opp/of.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index d92a1bfe1690..f83f4f6d7034 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -95,15 +95,7 @@ static struct dev_pm_opp *_find_opp_of_np(struct opp_table *opp_table,
 static struct device_node *of_parse_required_opp(struct device_node *np,
 						 int index)
 {
-	struct device_node *required_np;
-
-	required_np = of_parse_phandle(np, "required-opps", index);
-	if (unlikely(!required_np)) {
-		pr_err("%s: Unable to parse required-opps: %pOF, index: %d\n",
-		       __func__, np, index);
-	}
-
-	return required_np;
+	return of_parse_phandle(np, "required-opps", index);
 }
 
 /* The caller must call dev_pm_opp_put_opp_table() after the table is used */
@@ -1193,7 +1185,7 @@ int of_get_required_opp_performance_state(struct device_node *np, int index)
 
 	required_np = of_parse_required_opp(np, index);
 	if (!required_np)
-		return -EINVAL;
+		return -ENODEV;
 
 	opp_table = _find_table_of_opp_np(required_np);
 	if (IS_ERR(opp_table)) {
-- 
2.30.2
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