diff options
| author | Sudeep Holla <Sudeep.Holla@arm.com> | 2016-02-17 12:03:23 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-02-22 00:53:56 +0100 |
| commit | 504997cf96fabf67b4768b7a8ca1a1b622abd839 (patch) | |
| tree | b28e6c830f8ff61044f6b0974847e5461ae08c91 /drivers/acpi/processor_idle.c | |
| parent | db62fda318a6b9082ee9d230be8b45e56b6545c0 (diff) | |
ACPI / sleep: move acpi_processor_sleep to sleep.c
acpi_processor_sleep is neither related nor used by CPUIdle framework.
It's used in system suspend/resume path as a syscore operation. It makes
more sense to move it to acpi/sleep.c where all the S-state transition
(a.k.a. Linux system suspend/hiberate) related code are present.
Also make it depend on CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT so that
it's not compiled on architecture like ARM64 where S-states are not
yet defined in ACPI.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/processor_idle.c')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index e057aa8fafb0..fadce354d2b7 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -31,7 +31,6 @@ #include <linux/sched.h> /* need_resched() */ #include <linux/tick.h> #include <linux/cpuidle.h> -#include <linux/syscore_ops.h> #include <acpi/processor.h> /* @@ -193,42 +192,6 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr, #endif -#ifdef CONFIG_PM_SLEEP -static u32 saved_bm_rld; - -static int acpi_processor_suspend(void) -{ - acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &saved_bm_rld); - return 0; -} - -static void acpi_processor_resume(void) -{ - u32 resumed_bm_rld = 0; - - acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld); - if (resumed_bm_rld == saved_bm_rld) - return; - - acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld); -} - -static struct syscore_ops acpi_processor_syscore_ops = { - .suspend = acpi_processor_suspend, - .resume = acpi_processor_resume, -}; - -void acpi_processor_syscore_init(void) -{ - register_syscore_ops(&acpi_processor_syscore_ops); -} - -void acpi_processor_syscore_exit(void) -{ - unregister_syscore_ops(&acpi_processor_syscore_ops); -} -#endif /* CONFIG_PM_SLEEP */ - #if defined(CONFIG_X86) static void tsc_check_state(int state) { |