diff options
| -rw-r--r-- | drivers/ata/ahci.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 61d34ca0d9f4..944e44caa260 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1781,6 +1781,13 @@ static void ahci_update_initial_lpm_policy(struct ata_port *ap) return; } + /* If no Partial or no Slumber, we cannot support DIPM. */ + if ((ap->host->flags & ATA_HOST_NO_PART) || + (ap->host->flags & ATA_HOST_NO_SSC)) { + ata_port_dbg(ap, "Host does not support DIPM\n"); + ap->flags |= ATA_FLAG_NO_DIPM; + } + /* If no LPM states are supported by the HBA, do not bother with LPM */ if ((ap->host->flags & ATA_HOST_NO_PART) && (ap->host->flags & ATA_HOST_NO_SSC) && |