linux-kernel - [PATCH] PM / OPP: OF: Use pr_debug() instead of pr

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Date:   Wed, 12 Jul 2017 09:21:49 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rafael Wysocki <rjw@...ysocki.net>,
        Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...eaurora.org>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>, linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Mason <slash.tmp@...e.fr>, linux-kernel@...r.kernel.org
Subject: [PATCH] PM / OPP: OF: Use pr_debug() instead of pr_err() while adding OPP table

Some platforms add the OPPs dynamically from platform specific drivers
instead of getting them statically from DT. The cpufreq-dt driver
already ignores the return value of dev_pm_opp_of_cpumask_add_table() to
not error out for such cases, but we still end up printing error message
from that routine. That's not nice.

Convert the print message to use pr_debug() instead.

Reported-by: Mason <slash.tmp@...e.fr>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/base/power/opp/of.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/base/power/opp/of.c b/drivers/base/power/opp/of.c
index 779428676f63..f1d8b01db546 100644
--- a/drivers/base/power/opp/of.c
+++ b/drivers/base/power/opp/of.c
@@ -533,8 +533,12 @@ int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask)
 
 		ret = dev_pm_opp_of_add_table(cpu_dev);
 		if (ret) {
-			pr_err("%s: couldn't find opp table for cpu:%d, %d\n",
-			       __func__, cpu, ret);
+			/*
+			 * OPP may get registered dynamically, don't print error
+			 * message here.
+			 */
+			pr_debug("%s: couldn't find opp table for cpu:%d, %d\n",
+				 __func__, cpu, ret);
 
 			/* Free all other OPPs */
 			dev_pm_opp_of_cpumask_remove_table(cpumask);
-- 
2.13.0.71.gd7076ec9c9cb