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| author | Shaohua Li <shaohua.li@intel.com> | 2007-10-11 23:53:58 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:53:58 +0200 |
| commit | 5e32132befa5d2cefadf3141fee0bbb40cd11f0e (patch) | |
| tree | 7bf2002e49b169d24b87a8fe71364875e04d1e90 /drivers/acpi/bus.c | |
| parent | 8cb1f567f4c0a2fde9cbf77c2af888a28cab3423 (diff) | |
| download | linux-5e32132befa5d2cefadf3141fee0bbb40cd11f0e.tar.gz linux-5e32132befa5d2cefadf3141fee0bbb40cd11f0e.tar.bz2 linux-5e32132befa5d2cefadf3141fee0bbb40cd11f0e.zip | |
ide: hook ACPI _PSx method to IDE power on/off
ACPI spec defines the sequence of IDE power on/off:
Powering down:
Call _GTM.
Power down drive (calls _PS3 method and turns off power planes).
Powering up:
Power up drive (calls _PS0 method if present and turns on power planes).
Call _STM passing info from _GTM (possibly modified), with ID data from
each drive.
Initialize the channel.
May modify the results of _GTF.
For each drive:
Call _GTF.
Execute task file (possibly modified).
This patch adds the missed _PS0/_PS3 methods call.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 9ba778a2b484..feab124d8e05 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -262,10 +262,12 @@ int acpi_bus_set_power(acpi_handle handle, int state) printk(KERN_WARNING PREFIX "Transitioning device [%s] to D%d\n", device->pnp.bus_id, state); - else + else { + device->power.state = state; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] transitioned to D%d\n", device->pnp.bus_id, state)); + } return result; } |