[PATCH 5.13 275/380] opp: Dont print an error if required-opps is missing

From: Greg Kroah-Hartman
Date: Thu Sep 16 2021 - 12:56:03 EST


From: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx>

[ 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 <rnayak@xxxxxxxxxxxxxx>
Reviewed-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 01feeba78426..de550ee48e77 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 */
@@ -1349,7 +1341,7 @@ 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