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authorTejun Heo <htejun@gmail.com>2007-07-10 10:55:43 +0400
committerJeff Garzik <jeff@garzik.org>2007-07-25 00:55:01 +0400
commitb8b275efc28e34f9b1d1e382d0b02dfa381b2a79 (patch)
tree81eea69b15307e96afb63d676f9027268a67cca8 /include
parentf0a664bbd1839fbe9f57564983f39bfc6c6f931d (diff)
downloadlinux-b8b275efc28e34f9b1d1e382d0b02dfa381b2a79.tar.xz
ata_piix: fix suspend/resume for some TOSHIBA laptops
ACPI implementations in several TOSHIBA laptops are weird and burn cpu cycles for tens of seconds while trying to suspend if the PCI device for the ATA controller is disabled when the ACPI suspend is called. This patch uses DMI to match those machines and bypass device disable on those machines during suspend. As the device needs to be put into enabled state on resume without affecting PCI enable count, matching resume callback uses __pci_reenable_device(). This bug is reported in bugzilla bug 7780. http://bugzilla.kernel.org/show_bug.cgi?id=7780 Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/libata.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 9aa6c10f7bb1..41978a557318 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -216,6 +216,8 @@ enum {
ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */
ATA_HOST_STARTED = (1 << 1), /* Host started */
+ /* bits 24:31 of host->flags are reserved for LLD specific flags */
+
/* various lengths of time */
ATA_TMOUT_BOOT = 30 * HZ, /* heuristic */
ATA_TMOUT_BOOT_QUICK = 7 * HZ, /* heuristic */