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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-05 08:57:24 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-05 08:58:03 -0700 |
| commit | e765bf84d59257d3c4f948fbce426ea3565e83ad (patch) | |
| tree | e6c2fa13b21a2faf398c3c6ceba8fe5187e381d7 /drivers/acpi/processor_idle.c | |
| parent | Fix OMAP EHCI suspend/resume failure (i693) '354ab856' causes (diff) | |
| parent | Linux 3.5-rc5 (diff) | |
| download | linux-dev-e765bf84d59257d3c4f948fbce426ea3565e83ad.tar.xz linux-dev-e765bf84d59257d3c4f948fbce426ea3565e83ad.zip | |
Merge 3.5-rc5 into usb-next
This resolves a merge issue with the option.c USB serial driver.
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 | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index f3decb30223f..47a8caa89dbe 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -224,6 +224,7 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr, /* * Suspend / resume control */ +static int acpi_idle_suspend; static u32 saved_bm_rld; static void acpi_idle_bm_rld_save(void) @@ -242,13 +243,21 @@ static void acpi_idle_bm_rld_restore(void) int acpi_processor_suspend(struct acpi_device * device, pm_message_t state) { + if (acpi_idle_suspend == 1) + return 0; + acpi_idle_bm_rld_save(); + acpi_idle_suspend = 1; return 0; } int acpi_processor_resume(struct acpi_device * device) { + if (acpi_idle_suspend == 0) + return 0; + acpi_idle_bm_rld_restore(); + acpi_idle_suspend = 0; return 0; } @@ -754,6 +763,12 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev, local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + lapic_timer_state_broadcast(pr, cx, 1); kt1 = ktime_get_real(); acpi_idle_do_entry(cx); @@ -823,6 +838,12 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + if (cx->entry_method != ACPI_CSTATE_FFH) { current_thread_info()->status &= ~TS_POLLING; /* @@ -907,14 +928,21 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, drv, drv->safe_state_index); } else { local_irq_disable(); - acpi_safe_halt(); + if (!acpi_idle_suspend) + acpi_safe_halt(); local_irq_enable(); - return -EINVAL; + return -EBUSY; } } local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + if (cx->entry_method != ACPI_CSTATE_FFH) { current_thread_info()->status &= ~TS_POLLING; /* |