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authorDoug Berger <opendmb@gmail.com>2017-06-21 16:20:12 -0700
committerTejun Heo <tj@kernel.org>2017-06-22 16:12:59 -0400
commitef0da1bf767d9e557c6375c7066717eead54cb15 (patch)
treeb14505fb37293098d814f455272c77b7ecff9aa8 /drivers/ata/ahci.h
parentd0318fb3c388a4082a4ea2b94fc242cd5c064cea (diff)
libata: Add the AHCI_HFLAG_YES_ALPM flag
Some hardware is capable of supporting Aggresive Link Power Management even though it is not indicated by the Host Capability register. This commit adds the AHCI_HFLAG_YES_ALPM flag to the AHCI library to allow indication of this quirk when the Host Capability register is Read Only and therefore cannot be changed. Signed-off-by: Doug Berger <opendmb@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/ahci.h')
-rw-r--r--drivers/ata/ahci.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 30f67a1a4f54..ee176e4af97a 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -248,6 +248,7 @@ enum {
AHCI_HFLAG_MULTI_MSI = 0,
#endif
AHCI_HFLAG_WAKE_BEFORE_STOP = (1 << 22), /* wake before DMA stop */
+ AHCI_HFLAG_YES_ALPM = (1 << 23), /* force ALPM cap on */
/* ap->flags bits */