libata: detect Device Attention support

Add a new flag ATA_DFLAG_DA to indicate that device supports "Device
Attention".

Acked-by: Aaron Lu <aaron.lu@amd.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 7705191b5a81..c14f88c1f1da 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2374,6 +2374,9 @@ int ata_dev_configure(struct ata_device *dev)
                         dma_dir_string = ", DMADIR";
                 }
 
+                if (ata_id_has_da(dev->id))
+                        dev->flags |= ATA_DFLAG_DA;
+
                 /* print device info to dmesg */
                 if (ata_msg_drv(ap) && print_info)
                         ata_dev_info(dev,