diff options
| -rw-r--r-- | drivers/acpi/osl.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/sleep.c | 16 | ||||
| -rw-r--r-- | include/linux/suspend.h | 2 | ||||
| -rw-r--r-- | kernel/power/suspend.c | 21 |
4 files changed, 39 insertions, 2 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 3abe9b223ba7..5ca29b5af8d1 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -825,7 +825,7 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler, acpi_irq_handler = handler; acpi_irq_context = context; - if (request_irq(irq, acpi_irq, IRQF_SHARED | IRQF_NO_SUSPEND, "acpi", acpi_irq)) { + if (request_irq(irq, acpi_irq, IRQF_SHARED, "acpi", acpi_irq)) { printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq); acpi_irq_handler = NULL; return AE_NOT_ACQUIRED; diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 54da4a3fe65e..05a31b573fc3 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -14,6 +14,7 @@ #include <linux/irq.h> #include <linux/dmi.h> #include <linux/device.h> +#include <linux/interrupt.h> #include <linux/suspend.h> #include <linux/reboot.h> #include <linux/acpi.h> @@ -626,6 +627,19 @@ static int acpi_freeze_begin(void) return 0; } +static int acpi_freeze_prepare(void) +{ + acpi_enable_all_wakeup_gpes(); + enable_irq_wake(acpi_gbl_FADT.sci_interrupt); + return 0; +} + +static void acpi_freeze_restore(void) +{ + disable_irq_wake(acpi_gbl_FADT.sci_interrupt); + acpi_enable_all_runtime_gpes(); +} + static void acpi_freeze_end(void) { acpi_scan_lock_release(); @@ -633,6 +647,8 @@ static void acpi_freeze_end(void) static const struct platform_freeze_ops acpi_freeze_ops = { .begin = acpi_freeze_begin, + .prepare = acpi_freeze_prepare, + .restore = acpi_freeze_restore, .end = acpi_freeze_end, }; diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 06a9910827c2..3388c1b6f7d8 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -189,6 +189,8 @@ struct platform_suspend_ops { struct platform_freeze_ops { int (*begin)(void); + int (*prepare)(void); + void (*restore)(void); void (*end)(void); }; diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index a25e768d92b5..4ca9a33ff620 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -144,6 +144,12 @@ static int platform_suspend_prepare(suspend_state_t state) suspend_ops->prepare() : 0; } +static int platform_suspend_prepare_late(suspend_state_t state) +{ + return state == PM_SUSPEND_FREEZE && freeze_ops->prepare ? + freeze_ops->prepare() : 0; +} + static int platform_suspend_prepare_noirq(suspend_state_t state) { return state != PM_SUSPEND_FREEZE && suspend_ops->prepare_late ? @@ -156,6 +162,12 @@ static void platform_resume_noirq(suspend_state_t state) suspend_ops->wake(); } +static void platform_resume_early(suspend_state_t state) +{ + if (state == PM_SUSPEND_FREEZE && freeze_ops->restore) + freeze_ops->restore(); +} + static void platform_resume_finish(suspend_state_t state) { if (state != PM_SUSPEND_FREEZE && suspend_ops->finish) @@ -270,10 +282,14 @@ static int suspend_enter(suspend_state_t state, bool *wakeup) printk(KERN_ERR "PM: late suspend of devices failed\n"); goto Platform_finish; } + error = platform_suspend_prepare_late(state); + if (error) + goto Devices_early_resume; + error = dpm_suspend_noirq(PMSG_SUSPEND); if (error) { printk(KERN_ERR "PM: noirq suspend of devices failed\n"); - goto Devices_early_resume; + goto Platform_early_resume; } error = platform_suspend_prepare_noirq(state); if (error) @@ -326,6 +342,9 @@ static int suspend_enter(suspend_state_t state, bool *wakeup) platform_resume_noirq(state); dpm_resume_noirq(PMSG_RESUME); + Platform_early_resume: + platform_resume_early(state); + Devices_early_resume: dpm_resume_early(PMSG_RESUME); |