UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

PM / OPP: Move error message to debug level 

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>
This commit is contained in:
Fabio Estevam 2017-09-29 14:39:49 -03:00 committed by Rafael J. Wysocki
parent d741029a23
commit 035ed07208
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/opp/core.c
View File

@ -296,7 +296,7 @@ int dev_pm_opp_get_opp_count(struct device *dev)
opp_table = _find_opp_table(dev); opp_table = _find_opp_table(dev);
if (IS_ERR(opp_table)) { if (IS_ERR(opp_table)) {
count = PTR_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); __func__, count);
return count; return count;
} }