diff options
| author |   Dmitry Osipenko <digetx@gmail.com> | 2021-01-21 00:12:31 +0300 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-01-22 17:12:59 +0100 |
| commit | 18027d6f392ee8d89d9df4dff0a7db4fb2d6f8a5 (patch) | |
| tree | 1fb623295dcf514ed5b322913b3766602f2ac790 /drivers/base/power/domain.c | |
| parent | PM: domains: Make set_performance_state() callback optional (diff) | |
| download | linux-dev-18027d6f392ee8d89d9df4dff0a7db4fb2d6f8a5.tar.xz linux-dev-18027d6f392ee8d89d9df4dff0a7db4fb2d6f8a5.zip | |
PM: domains: Make of_genpd_add_subdomain() return -EPROBE_DEFER
Driver of a power domain provider may not be ready at the time of
of_genpd_add_subdomain() invocation. Make this function to return
-EPROBE_DEFER instead of -ENOENT in order to remove a need from
power domain drivers to handle the error code specially.
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
[tested on NVIDIA Tegra20/30/124 SoCs]
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base/power/domain.c')
| -rw-r--r-- | drivers/base/power/domain.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 4878c824e66c..c615abf56c52 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2496,7 +2496,7 @@ int of_genpd_add_subdomain(struct of_phandle_args *parent_spec, out: mutex_unlock(&gpd_list_lock); - return ret; + return ret == -ENOENT ? -EPROBE_DEFER : ret; } EXPORT_SYMBOL_GPL(of_genpd_add_subdomain); |