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libata-acpi: add new hooks ata_acpi_dissociate() and ata_acpi_on_disable()

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Add two hooks - ata_acpi_dissociate() which is called during driver
detach after the whole host is shutdown and ata_acpi_on_disable()
which is called when a device is disabled.

Signed-off-by: Tejun heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-12-15 15:05:01 +09:00 committed by Jeff Garzik
parent 7f9ad9b8b9
commit 562f0c2d77
3 changed files with 38 additions and 2 deletions
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28
drivers/ata/libata-acpi.c
View file

@ -187,6 +187,21 @@ void ata_acpi_associate(struct ata_host *host)
}
}
/**
* ata_acpi_dissociate - dissociate ATA host from ACPI objects
* @host: target ATA host
*
* This function is called during driver detach after the whole host
* is shut down.
*
* LOCKING:
* EH context.
*/
void ata_acpi_dissociate(struct ata_host *host)
{
/* nada */
}
/**
* ata_acpi_gtm - execute _GTM
* @ap: target ATA port
@ -716,3 +731,16 @@ int ata_acpi_on_devcfg(struct ata_device *dev)
dev->flags |= ATA_DFLAG_ACPI_FAILED;
return rc;
}
/**
* ata_acpi_on_disable - ATA ACPI hook called when a device is disabled
* @dev: target ATA device
*
* This function is called when @dev is about to be disabled.
*
* LOCKING:
* EH context.
*/
void ata_acpi_on_disable(struct ata_device *dev)
{
}

4
drivers/ata/libata-core.c
View file

@ -622,6 +622,7 @@ void ata_dev_disable(struct ata_device *dev)
if (ata_dev_enabled(dev)) {
if (ata_msg_drv(dev->link->ap))
ata_dev_printk(dev, KERN_WARNING, "disabled\n");
ata_acpi_on_disable(dev);
ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO0 |
ATA_DNXFER_QUIET);
dev->class++;
@ -7249,6 +7250,9 @@ void ata_host_detach(struct ata_host *host)
for (i = 0; i < host->n_ports; i++)
ata_port_detach(host->ports[i]);
/* the host is dead now, dissociate ACPI */
ata_acpi_dissociate(host);
}
/**

8
drivers/ata/libata.h
View file

@ -108,15 +108,19 @@ extern void ata_lpm_schedule(struct ata_port *ap, enum link_pm);
#ifdef CONFIG_ATA_ACPI
extern void ata_acpi_associate_sata_port(struct ata_port *ap);
extern void ata_acpi_associate(struct ata_host *host);
extern void ata_acpi_dissociate(struct ata_host *host);
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 *adev);
extern int ata_acpi_on_devcfg(struct ata_device *dev);
extern void ata_acpi_on_disable(struct ata_device *dev);
#else
static inline void ata_acpi_associate_sata_port(struct ata_port *ap) { }
static inline void ata_acpi_associate(struct ata_host *host) { }
static inline void ata_acpi_dissociate(struct ata_host *host) { }
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 *adev) { return 0; }
static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; }
static inline void ata_acpi_on_disable(struct ata_device *dev) { }
#endif
/* libata-scsi.c */