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authorAaron Lu <aaron.lu@intel.com>2013-01-15 17:20:58 +0800
committerJeff Garzik <jgarzik@redhat.com>2013-01-21 15:40:35 -0500
commitafe759511808cd5bb508b598007cf0c7b0ca8e08 (patch)
tree26073c5a74b5fe2183aa457da6d9b5cc3d9912bb /drivers/ata/libata-core.c
parent1757d902b029a29dfcef63609964385cf8865b5a (diff)
downloadlinux-linaro-stable-afe759511808cd5bb508b598007cf0c7b0ca8e08.tar.gz
libata: identify and init ZPODD devices
The ODD can be enabled for ZPODD if the following three conditions are satisfied: 1 The ODD supports device attention; 2 The platform can runtime power off the ODD through ACPI; 3 The ODD is either slot type or drawer type. For such ODDs, zpodd_init is called and a new structure is allocated for it to store ZPODD related stuffs. And the zpodd_dev_enabled function is used to test if ZPODD is currently enabled for this ODD. A new config CONFIG_SATA_ZPODD is added to selectively build ZPODD code. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libata-core.c')
-rw-r--r--drivers/ata/libata-core.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 275941b576a8..c7ecd8492f1e 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2401,8 +2401,10 @@ int ata_dev_configure(struct ata_device *dev)
dma_dir_string = ", DMADIR";
}
- if (ata_id_has_da(dev->id))
+ if (ata_id_has_da(dev->id)) {
dev->flags |= ATA_DFLAG_DA;
+ zpodd_init(dev);
+ }
/* print device info to dmesg */
if (ata_msg_drv(ap) && print_info)