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authorShaohua Li <shaohua.li@intel.com>2007-11-02 09:32:38 +0800
committerJeff Garzik <jeff@garzik.org>2008-01-23 05:24:09 -0500
commitbd3adca52bc43b72c75db3e4c7809d47923b154c (patch)
treeec42456926e50a4b0adf916ac1c5f39f76e057f8 /drivers/ata/libata.h
parentae8d4ee7ff429136c8b482c3b38ed994c021d3fc (diff)
downloadop-kernel-dev-bd3adca52bc43b72c75db3e4c7809d47923b154c.zip
op-kernel-dev-bd3adca52bc43b72c75db3e4c7809d47923b154c.tar.gz
libata-acpi: add ACPI _PSx method
ACPI spec (ver 3.0a, p289) requires IDE power on/off executes ACPI _PSx methods. As recently most PATA drivers use libata, this patch adds _PSx method support in libata. ACPI spec doesn't mention if SATA requires the same _PSx method. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libata.h')
-rw-r--r--drivers/ata/libata.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 048e26c..8cf0874 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -114,6 +114,7 @@ extern int ata_acpi_on_suspend(struct ata_port *ap);
extern void ata_acpi_on_resume(struct ata_port *ap);
extern int ata_acpi_on_devcfg(struct ata_device *dev);
extern void ata_acpi_on_disable(struct ata_device *dev);
+extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state);
#else
static inline void ata_acpi_associate_sata_port(struct ata_port *ap) { }
static inline void ata_acpi_associate(struct ata_host *host) { }
@@ -122,6 +123,8 @@ static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; }
static inline void ata_acpi_on_resume(struct ata_port *ap) { }
static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; }
static inline void ata_acpi_on_disable(struct ata_device *dev) { }
+static inline void ata_acpi_set_state(struct ata_port *ap,
+ pm_message_t state) { }
#endif
/* libata-scsi.c */
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