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authorDaniel Lezcano <daniel.lezcano@linaro.org>2015-09-01 21:37:49 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-09-26 03:43:32 +0300
commitcea3ad93d9a5e054d916f1ad71da02cb306e4828 (patch)
treea916ab9a7e4c7ddcc51b1a77d8699044de55b05d /include/linux/pm_domain.h
parentc6f7b48e7e21989f4cfc996837d55c595d5dbf87 (diff)
downloadlinux-cea3ad93d9a5e054d916f1ad71da02cb306e4828.tar.xz
PM / Domains: Remove cpuidle attach
The power domains code allows to tie a cpuidle state with a power domain. Preventing the cpuidle framework to enter a specific idle state by disabling from the power domain framework is a good idea. Unfortunately, the current implementation has some gaps with a SMP system and a complex cpuidle implementation. Enabling a power domain wakes up all the cpus even if a cpu does not belong to the power domain. There is some work to do a logical representation with the power domains of the hardware dependencies (eg. a cpu belongs to a power domains, these power domains belong to a higher power domain for a cluster, etc ...). A new code relying on the genpd hierarchy to disable the idle states would make more sense. As the unique user of this code has been removed, let's wipe out this code to prevent new user and to have a clean place to put a new implementation. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Kevin Hilman <khilman@linaro.org> 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.h17
1 files changed, 0 insertions, 17 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 443fc196dc01..384b1d193707 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -15,7 +15,6 @@
#include <linux/err.h>
#include <linux/of.h>
#include <linux/notifier.h>
-#include <linux/cpuidle.h>
/* Defines used for the flags field in the struct generic_pm_domain */
#define GENPD_FLAG_PM_CLK (1U << 0) /* PM domain uses PM clk */
@@ -38,11 +37,6 @@ struct gpd_dev_ops {
bool (*active_wakeup)(struct device *dev);
};
-struct gpd_cpuidle_data {
- unsigned int saved_exit_latency;
- struct cpuidle_state *idle_state;
-};
-
struct generic_pm_domain {
struct dev_pm_domain domain; /* PM domain operations */
struct list_head gpd_list_node; /* Node in the global PM domains list */
@@ -68,7 +62,6 @@ struct generic_pm_domain {
s64 max_off_time_ns; /* Maximum allowed "suspended" time. */
bool max_off_time_changed;
bool cached_power_down_ok;
- struct gpd_cpuidle_data *cpuidle_data;
int (*attach_dev)(struct generic_pm_domain *domain,
struct device *dev);
void (*detach_dev)(struct generic_pm_domain *domain,
@@ -131,8 +124,6 @@ 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 int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state);
-extern int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd);
extern void pm_genpd_init(struct generic_pm_domain *genpd,
struct dev_power_governor *gov, bool is_off);
@@ -172,14 +163,6 @@ static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
-static inline int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st)
-{
- return -ENOSYS;
-}
-static inline int pm_genpd_detach_cpuidle(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)
{