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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-30 05:50:02 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-30 05:50:02 +0300
commitdf90dcd1007bc498927afea18ccfaae02e361707 (patch)
tree0af07493516090fd1ea64e885f41cf413bf74d83 /include/linux
parent346eef2fc0c6e535f2de74a551223e2e456c1f41 (diff)
parent651c3293bf333c774f3d4c9876a6552d0ac2f5b9 (diff)
downloadlinux-df90dcd1007bc498927afea18ccfaae02e361707.tar.xz
Merge tag 'pm+acpi-3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI material from Rafael J Wysocki: "These are fixes (operating performance points library, cpufreq-dt driver, cpufreq core, ACPI backlight, cpupower tool), cleanups (cpuidle), new processor IDs for the RAPL (Running Average Power Limit) power capping driver, and a modification of the generic power domains framework allowing modular drivers to call one of its helper functions. Specifics: - Fix for a potential NULL pointer dereference in the cpufreq core due to an initialization race condition (Ethan Zhao). - Fixes for abuse of the OPP (Operating Performance Points) API related to RCU and other minor issues in the OPP library and the cpufreq-dt driver (Dmitry Torokhov). - cpuidle governors cleanup making them measure idle duration in a better way without using the CPUIDLE_FLAG_TIME_INVALID flag which allows that flag to be dropped from the ACPI cpuidle driver and from the core too (Len Brown). - New ACPI backlight blacklist entries for Samsung machines without a working native backlight interface that need to use the ACPI backlight instead (Aaron Lu). - New CPU IDs of future Intel Xeon CPUs for the Intel RAPL power capping driver (Jacob Pan). - Generic power domains framework modification to export the of_genpd_get_from_provider() function to modular drivers that will allow future driver modifications to be based on the mainline (Amit Daniel Kachhap). - Two fixes for the cpupower tool (Michal Privoznik, Prarit Bhargava)" * tag 'pm+acpi-3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / video: Add some Samsung models to disable_native_backlight list tools / cpupower: Fix no idle state information return value tools / cpupower: Correctly detect if running as root cpufreq: fix a NULL pointer dereference in __cpufreq_governor() cpufreq-dt: defer probing if OPP table is not ready PM / OPP: take RCU lock in dev_pm_opp_get_opp_count PM / OPP: fix warning in of_free_opp_table() PM / OPP: add some lockdep annotations powercap / RAPL: add IDs for future Xeon CPUs PM / Domains: Export of_genpd_get_from_provider function cpuidle / ACPI: remove unused CPUIDLE_FLAG_TIME_INVALID cpuidle: ladder: Better idle duration measurement without using CPUIDLE_FLAG_TIME_INVALID cpuidle: menu: Better idle duration measurement without using CPUIDLE_FLAG_TIME_INVALID
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/cpuidle.h3
-rw-r--r--include/linux/pm_domain.h8
2 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index a07e087f54b2..ab70f3bc44ad 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -53,7 +53,6 @@ struct cpuidle_state {
};
/* Idle State Flags */
-#define CPUIDLE_FLAG_TIME_INVALID (0x01) /* is residency time measurable? */
#define CPUIDLE_FLAG_COUPLED (0x02) /* state applies to multiple cpus */
#define CPUIDLE_FLAG_TIMER_STOP (0x04) /* timer is stopped on this state */
@@ -89,8 +88,6 @@ DECLARE_PER_CPU(struct cpuidle_device, cpuidle_dev);
/**
* cpuidle_get_last_residency - retrieves the last state's residency time
* @dev: the target CPU
- *
- * NOTE: this value is invalid if CPUIDLE_FLAG_TIME_INVALID is set
*/
static inline int cpuidle_get_last_residency(struct cpuidle_device *dev)
{
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 6cd20d5e651b..a9edab2c787a 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -271,6 +271,8 @@ typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args,
int __of_genpd_add_provider(struct device_node *np, genpd_xlate_t xlate,
void *data);
void of_genpd_del_provider(struct device_node *np);
+struct generic_pm_domain *of_genpd_get_from_provider(
+ struct of_phandle_args *genpdspec);
struct generic_pm_domain *__of_genpd_xlate_simple(
struct of_phandle_args *genpdspec,
@@ -288,6 +290,12 @@ static inline int __of_genpd_add_provider(struct device_node *np,
}
static inline void of_genpd_del_provider(struct device_node *np) {}
+static inline struct generic_pm_domain *of_genpd_get_from_provider(
+ struct of_phandle_args *genpdspec)
+{
+ return NULL;
+}
+
#define __of_genpd_xlate_simple NULL
#define __of_genpd_xlate_onecell NULL