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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-23 18:15:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-23 18:15:05 -0800 |
| commit | be64c970f601d5bb439b6cc88ea2bd208b3422a0 (patch) | |
| tree | 8bf588711019bfef8fe111e2ac6283910ffe725e | |
| parent | 34e3f91b4e66e52b3e189b2f778bd37d68963ca8 (diff) | |
| parent | b2cb9dcb98cc7a3210e9138a05e0ae1863523a61 (diff) | |
| download | linux-be64c970f601d5bb439b6cc88ea2bd208b3422a0.tar.bz2 | |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: Be in TS_POLLING state during mwait based C-state entry
ACPI: Fix regression where _PPC is not read at boot even when ignore_ppc=0
acer-wmi: Respect current backlight level when loading
| -rw-r--r-- | drivers/acpi/processor_idle.c | 28 | ||||
| -rw-r--r-- | drivers/acpi/processor_perflib.c | 6 | ||||
| -rw-r--r-- | drivers/platform/x86/acer-wmi.c | 2 |
3 files changed, 22 insertions, 14 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index e88e8ae04fdb..cc978a8c00b7 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -880,12 +880,14 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, return(acpi_idle_enter_c1(dev, state)); local_irq_disable(); - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we test - * NEED_RESCHED: - */ - smp_mb(); + if (cx->entry_method != ACPI_CSTATE_FFH) { + current_thread_info()->status &= ~TS_POLLING; + /* + * TS_POLLING-cleared state must be visible before we test + * NEED_RESCHED: + */ + smp_mb(); + } if (unlikely(need_resched())) { current_thread_info()->status |= TS_POLLING; @@ -965,12 +967,14 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, } local_irq_disable(); - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we test - * NEED_RESCHED: - */ - smp_mb(); + if (cx->entry_method != ACPI_CSTATE_FFH) { + current_thread_info()->status &= ~TS_POLLING; + /* + * TS_POLLING-cleared state must be visible before we test + * NEED_RESCHED: + */ + smp_mb(); + } if (unlikely(need_resched())) { current_thread_info()->status |= TS_POLLING; diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 2cabadcc4d8c..a959f6a07508 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -413,7 +413,11 @@ static int acpi_processor_get_performance_info(struct acpi_processor *pr) if (result) goto update_bios; - return 0; + /* We need to call _PPC once when cpufreq starts */ + if (ignore_ppc != 1) + result = acpi_processor_get_platform_limit(pr); + + return result; /* * Having _PPC but missing frequencies (_PSS, _PCT) is a very good hint that diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 07d14dfdf0b4..226b3e93498c 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -934,7 +934,7 @@ static int __devinit acer_backlight_init(struct device *dev) acer_backlight_device = bd; bd->props.power = FB_BLANK_UNBLANK; - bd->props.brightness = max_brightness; + bd->props.brightness = read_brightness(bd); bd->props.max_brightness = max_brightness; backlight_update_status(bd); return 0; |