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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-13 21:39:35 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-13 21:39:35 +0200 |
| commit | 1ea1031cf92b8b8bfbe796d8e8d38b68300475d2 (patch) | |
| tree | c661ca6e55a4b330e73330705d1a52316909ec8a /drivers/ide/ide.c | |
| parent | 0964dbe60c98f483567ac9a1220f6ab01a15c954 (diff) | |
| download | kernel_samsung_espresso10-1ea1031cf92b8b8bfbe796d8e8d38b68300475d2.zip kernel_samsung_espresso10-1ea1031cf92b8b8bfbe796d8e8d38b68300475d2.tar.gz kernel_samsung_espresso10-1ea1031cf92b8b8bfbe796d8e8d38b68300475d2.tar.bz2 | |
ide: fix IDE ACPI for slave device-only configurations
ACPI _GTM / _PS0 / _STM were not called if only slave device was present.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide.c')
| -rw-r--r-- | drivers/ide/ide.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 9dcf5ae..6499787 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -365,15 +365,15 @@ __IDE_DEVSET(pio_mode, 0, NULL, set_pio_mode); static int generic_ide_suspend(struct device *dev, pm_message_t mesg) { - ide_drive_t *drive = dev->driver_data; + ide_drive_t *drive = dev->driver_data, *pair = ide_get_pair_dev(drive); ide_hwif_t *hwif = HWIF(drive); struct request *rq; struct request_pm_state rqpm; ide_task_t args; int ret; - /* Call ACPI _GTM only once */ - if (!(drive->dn % 2)) + /* call ACPI _GTM only once */ + if ((drive->dn & 1) == 0 || pair == NULL) ide_acpi_get_timing(hwif); memset(&rqpm, 0, sizeof(rqpm)); @@ -389,26 +389,25 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg) ret = blk_execute_rq(drive->queue, NULL, rq, 0); blk_put_request(rq); - /* only call ACPI _PS3 after both drivers are suspended */ - if (!ret && (((drive->dn % 2) && hwif->drives[0].present - && hwif->drives[1].present) - || !hwif->drives[0].present - || !hwif->drives[1].present)) + + /* call ACPI _PS3 only after both devices are suspended */ + if (ret == 0 && ((drive->dn & 1) || pair == NULL)) ide_acpi_set_state(hwif, 0); + return ret; } static int generic_ide_resume(struct device *dev) { - ide_drive_t *drive = dev->driver_data; + ide_drive_t *drive = dev->driver_data, *pair = ide_get_pair_dev(drive); ide_hwif_t *hwif = HWIF(drive); struct request *rq; struct request_pm_state rqpm; ide_task_t args; int err; - /* Call ACPI _STM only once */ - if (!(drive->dn % 2)) { + /* call ACPI _PS0 / _STM only once */ + if ((drive->dn & 1) == 0 || pair == NULL) { ide_acpi_set_state(hwif, 1); ide_acpi_push_timing(hwif); } |