summaryrefslogtreecommitdiff
path: root/include/linux/pm_domain.h
diff options
context:
space:
mode:
authorUlf Hansson <ulf.hansson@linaro.org>2016-06-17 13:27:52 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-06-29 03:15:19 +0300
commit7eb231c337e00735d4b553ed4ae7f9441598f028 (patch)
tree30c8c564e5f23f698598608c2bf007188b7a2f27 /include/linux/pm_domain.h
parent122a22377a3d8cc11cf18b20db13b02d5aad1a38 (diff)
downloadlinux-7eb231c337e00735d4b553ed4ae7f9441598f028.tar.xz
PM / Domains: Convert pm_genpd_init() to return an error code
The are already cases when pm_genpd_init() can fail. Currently we hide the failures instead of propagating an error code, which is a better method. Moreover, to prepare for future changes like moving away from using a fixed array-size of the struct genpd_power_state, to instead dynamically allocate data for it, the pm_genpd_init() API needs to be able to return an error code, as allocation can fail. Current users of the pm_genpd_init() is thus requested to start dealing with error codes. In the transition phase, users will have to live with only error messages being printed to log. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/pm_domain.h')
-rw-r--r--include/linux/pm_domain.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index dd5b0447d572..31fec858088c 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -127,8 +127,8 @@ extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *new_subdomain);
extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *target);
-extern void pm_genpd_init(struct generic_pm_domain *genpd,
- struct dev_power_governor *gov, bool is_off);
+extern int pm_genpd_init(struct generic_pm_domain *genpd,
+ struct dev_power_governor *gov, bool is_off);
extern struct dev_power_governor simple_qos_governor;
extern struct dev_power_governor pm_domain_always_on_gov;
@@ -163,9 +163,10 @@ static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
-static inline void pm_genpd_init(struct generic_pm_domain *genpd,
- struct dev_power_governor *gov, bool is_off)
+static inline int pm_genpd_init(struct generic_pm_domain *genpd,
+ struct dev_power_governor *gov, bool is_off)
{
+ return -ENOSYS;
}
#endif