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PM / OPP: Move error message to debug level

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[ Upstream commit 035ed07208 ]

On some i.MX6 platforms which do not have speed grading
check, opp table will not be created in platform code,
so cpufreq driver prints the following error message:

cpu cpu0: dev_pm_opp_get_opp_count: OPP table not found (-19)

However, this is not really an error in this case because the
imx6q-cpufreq driver first calls dev_pm_opp_get_opp_count()
and if it fails, it means that platform code does not provide
OPP and then dev_pm_opp_of_add_table() will be called.

In order to avoid such confusing error message, move it to
debug level.

It is up to the caller of dev_pm_opp_get_opp_count() to check its
return value and decide if it will print an error or not.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fabio Estevam
2017-09-29 14:39:49 -03:00
committed by Greg Kroah-Hartman
parent 7af9f9cd68
commit 349384cd70
1 changed files with 1 additions and 1 deletions
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2
drivers/base/power/opp/core.c
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@@ -296,7 +296,7 @@ int dev_pm_opp_get_opp_count(struct device *dev)
opp_table = _find_opp_table(dev);
if (IS_ERR(opp_table)) {
count = PTR_ERR(opp_table);
dev_err(dev, "%s: OPP table not found (%d)\n",
dev_dbg(dev, "%s: OPP table not found (%d)\n",
__func__, count);
return count;
}