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| author | Tony Lindgren <tony@atomide.com> | 2012-09-22 00:48:01 +0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2012-09-22 00:48:01 +0400 |
| commit | 0c9de3c52d2baed6bc2ee44885adb418152c71c4 (patch) | |
| tree | e19ab2c41ae47250fd614418022b32aa783aa563 /drivers/acpi/bus.c | |
| parent | 6bfc82ff589a00e5fbc12b958c649d703d273c86 (diff) | |
| parent | 3c7c5dab44d6c8861bc86dab924353d8d40344f8 (diff) | |
| download | linux-0c9de3c52d2baed6bc2ee44885adb418152c71c4.tar.xz | |
Merge branch 'for_3.7/omap5_arch_timer' of git://github.com/SantoshShilimkar/linux into devel-dt-arch-timer
Conflicts:
arch/arm/mach-omap2/timer.c
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 9628652e080c..e0596954290b 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -237,6 +237,16 @@ static int __acpi_bus_get_power(struct acpi_device *device, int *state) } else if (result == ACPI_STATE_D3_HOT) { result = ACPI_STATE_D3; } + + /* + * If we were unsure about the device parent's power state up to this + * point, the fact that the device is in D0 implies that the parent has + * to be in D0 too. + */ + if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN + && result == ACPI_STATE_D0) + device->parent->power.state = ACPI_STATE_D0; + *state = result; out: |