[PATCH] libata: ACPI and _GTF support

_GTF is an acpi method that is used to reinitialize the drive.  It returns
a task file containing ata commands that are sent back to the drive to restore
it to boot up defaults.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
(cherry picked from 9c69cab24b51a89664f4c0dfaf8a436d32117624 commit)

1 files changed, 5 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index abd575cfc759..5bc8970b8349 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -48,6 +48,7 @@ parameter is applicable:
         ISAPNP  ISA PnP code is enabled.
         ISDN    Appropriate ISDN support is enabled.
         JOY     Appropriate joystick support is enabled.
+        LIBATA  Libata driver is enabled
         LP      Printer support is enabled.
         LOOP    Loopback device support is enabled.
         M68k    M68k architecture is enabled.
@@ -1038,6 +1039,10 @@ and is between 256 and 4096 characters. It is defined in the file
                         emulation library even if a 387 maths coprocessor
                         is present.
 
+        noacpi          [LIBATA] Disables use of ACPI in libata suspend/resume
+                        when set.
+                        Format: <int>
+
         noaliencache    [MM, NUMA] Disables the allcoation of alien caches in
                         the slab allocator.  Saves per-node memory, but will
                         impact performance on real NUMA hardware.