| From foo@baz Thu Dec 21 09:02:40 CET 2017 |
| From: Fabio Estevam <fabio.estevam@nxp.com> |
| Date: Fri, 29 Sep 2017 14:39:49 -0300 |
| Subject: PM / OPP: Move error message to debug level |
| |
| From: Fabio Estevam <fabio.estevam@nxp.com> |
| |
| |
| [ Upstream commit 035ed07208dc501d023873447113f3f178592156 ] |
| |
| 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> |
| --- |
| drivers/base/power/opp/core.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/drivers/base/power/opp/core.c |
| +++ b/drivers/base/power/opp/core.c |
| @@ -331,7 +331,7 @@ int dev_pm_opp_get_opp_count(struct devi |
| 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); |
| goto out_unlock; |
| } |
