libata-acpi: add ata port runtime D3Cold support
ATA port may support runtime D3Cold state, for example, Zero-power ODD case.
This patch adds wakeup notifier and enable/disable run_wake during
supend/resume.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index b0d5294..44a7939 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -120,6 +120,8 @@
extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state);
extern int ata_acpi_register(void);
extern void ata_acpi_unregister(void);
+extern void ata_acpi_bind(struct ata_device *dev);
+extern void ata_acpi_unbind(struct ata_device *dev);
#else
static inline void ata_acpi_dissociate(struct ata_host *host) { }
static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; }
@@ -130,6 +132,8 @@
pm_message_t state) { }
static inline int ata_acpi_register(void) { return 0; }
static void ata_acpi_unregister(void) { }
+static void ata_acpi_bind(struct ata_device *dev) { }
+static void ata_acpi_unbind(struct ata_device *dev) { }
#endif
/* libata-scsi.c */