diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ata/libata-core.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 164c7d9514f..3ed3cf2f556 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -676,10 +676,11 @@ static int ata_dev_set_dipm(struct ata_device *dev, enum link_pm policy) if (rc) return rc; - /* disable DIPM */ - if (ata_dev_enabled(dev) && (dev->flags & ATA_DFLAG_DIPM)) - err_mask = ata_dev_set_feature(dev, - SETFEATURES_SATA_DISABLE, SATA_DIPM); + /* + * we don't have to disable DIPM since IPM flags + * disallow transitions to SLUMBER, which effectively + * disable DIPM if it does not support PARTIAL + */ break; case NOT_AVAILABLE: case MAX_PERFORMANCE: @@ -689,10 +690,11 @@ static int ata_dev_set_dipm(struct ata_device *dev, enum link_pm policy) if (rc) return rc; - /* disable DIPM */ - if (ata_dev_enabled(dev) && (dev->flags & ATA_DFLAG_DIPM)) - err_mask = ata_dev_set_feature(dev, - SETFEATURES_SATA_DISABLE, SATA_DIPM); + /* + * we don't have to disable DIPM since IPM flags + * disallow all transitions which effectively + * disable DIPM anyway. + */ break; } |