diff options
| author | Tejun Heo <htejun@gmail.com> | 2007-12-15 07:05:01 +0100 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-12-18 02:33:12 +0100 |
| commit | 562f0c2d771ee7be6b37fe015f94a929f8056120 (patch) | |
| tree | 17d1616b39894564f70255bd68eec5c19ebf0473 /drivers | |
| parent | libata: ata_dev_disable() should be called from EH context (diff) | |
| download | linux-562f0c2d771ee7be6b37fe015f94a929f8056120.tar.xz linux-562f0c2d771ee7be6b37fe015f94a929f8056120.zip | |
libata-acpi: add new hooks ata_acpi_dissociate() and ata_acpi_on_disable()
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ata/libata-acpi.c | 28 | ||||
| -rw-r--r-- | drivers/ata/libata-core.c | 4 | ||||
| -rw-r--r-- | drivers/ata/libata.h | 8 |
3 files changed, 38 insertions, 2 deletions
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 8ae36ad029c5..9e5fc5d75b2e 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -188,6 +188,21 @@ 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 * @gtm: out parameter for _GTM result @@ -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) +{ +} diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index c316eacbeddd..4af939a00e54 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -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); } /** diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 0e6cf3a484dc..bbe59c2fd1e2 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -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 */ |