libata-acpi: add ATA_FLAG_ACPI_SATA port flag

Whether a controller needs IDE or SATA ACPI hierarchy is determined by
the programming interface of the controller not by whether the
controller is SATA or PATA, or it supports slave device or not.  This
patch adds ATA_FLAG_ACPI_SATA port flags which tells libata-acpi that
the port needs SATA ACPI nodes, and sets the flag for ahci and
sata_sil24.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index b38a0f9bc9f..9b2122db30f 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -173,6 +173,7 @@ enum {
         ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
         ATA_FLAG_IGN_SIMPLEX    = (1 << 15), /* ignore SIMPLEX */
         ATA_FLAG_NO_IORDY       = (1 << 16), /* controller lacks iordy */
+        ATA_FLAG_ACPI_SATA      = (1 << 17), /* need native SATA ACPI layout */
 
         /* The following flag belongs to ap->pflags but is kept in
          * ap->flags because it's referenced in many LLDs and will be