diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-27 11:00:52 +0900 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-27 11:00:52 +0900 |
commit | 45f6bc5ff9c3387387f048ec85dcb4e69acf0b03 (patch) | |
tree | d04952bb05b53a362bcd165fb910c5c1441b4c5d /drivers/acpi/processor_idle.c | |
parent | 3138887bd8d18173f3c2baf1e43621c49090cd27 (diff) | |
parent | e4aa937ec75df0eea0bee03bffa3303ad36c986b (diff) |
Merge 3.10-rc3 into usb-next
We want these fixes.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi/processor_idle.c')
-rw-r--r-- | drivers/acpi/processor_idle.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index f0df2c9434d..eb133c77aad 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -34,6 +34,7 @@ #include <linux/sched.h> /* need_resched() */ #include <linux/clockchips.h> #include <linux/cpuidle.h> +#include <linux/syscore_ops.h> /* * Include the apic definitions for x86 to have the APIC timer related defines @@ -210,33 +211,41 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr, #endif +#ifdef CONFIG_PM_SLEEP static u32 saved_bm_rld; -static void acpi_idle_bm_rld_save(void) +int acpi_processor_suspend(void) { acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &saved_bm_rld); + return 0; } -static void acpi_idle_bm_rld_restore(void) + +void acpi_processor_resume(void) { u32 resumed_bm_rld; acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld); + if (resumed_bm_rld == saved_bm_rld) + return; - if (resumed_bm_rld != saved_bm_rld) - acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld); + acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld); } -int acpi_processor_suspend(struct device *dev) +static struct syscore_ops acpi_processor_syscore_ops = { + .suspend = acpi_processor_suspend, + .resume = acpi_processor_resume, +}; + +void acpi_processor_syscore_init(void) { - acpi_idle_bm_rld_save(); - return 0; + register_syscore_ops(&acpi_processor_syscore_ops); } -int acpi_processor_resume(struct device *dev) +void acpi_processor_syscore_exit(void) { - acpi_idle_bm_rld_restore(); - return 0; + unregister_syscore_ops(&acpi_processor_syscore_ops); } +#endif /* CONFIG_PM_SLEEP */ #if defined(CONFIG_X86) static void tsc_check_state(int state) |