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[PATCH] sata_sil24: add suspend/sleep support 

Add suspend/sleep support.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2006-07-03 16:07:27 +09:00 committed by Jeff Garzik
parent 2a41a6108d
commit d2298dca9a
1 changed files with 25 additions and 0 deletions
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25
drivers/scsi/sata_sil24.c
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@ -92,6 +92,7 @@ enum {
HOST_CTRL_STOP = (1 << 18), /* latched PCI STOP */
HOST_CTRL_DEVSEL = (1 << 19), /* latched PCI DEVSEL */
HOST_CTRL_REQ64 = (1 << 20), /* latched PCI REQ64 */
HOST_CTRL_GLOBAL_RST = (1 << 31), /* global reset */
/*
* Port registers
@ -338,6 +339,7 @@ static int sil24_port_start(struct ata_port *ap);
static void sil24_port_stop(struct ata_port *ap);
static void sil24_host_stop(struct ata_host_set *host_set);
static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
static int sil24_pci_device_resume(struct pci_dev *pdev);
static const struct pci_device_id sil24_pci_tbl[] = {
{ 0x1095, 0x3124, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BID_SIL3124 },
@ -353,6 +355,8 @@ static struct pci_driver sil24_pci_driver = {
.id_table = sil24_pci_tbl,
.probe = sil24_init_one,
.remove = ata_pci_remove_one, /* safe? */
.suspend = ata_pci_device_suspend,
.resume = sil24_pci_device_resume,
};
static struct scsi_host_template sil24_sht = {
@ -372,6 +376,8 @@ static struct scsi_host_template sil24_sht = {
.slave_configure = ata_scsi_slave_config,
.slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
.suspend = ata_scsi_device_suspend,
.resume = ata_scsi_device_resume,
};
static const struct ata_port_operations sil24_ops = {
@ -1179,6 +1185,25 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
return rc;
}
static int sil24_pci_device_resume(struct pci_dev *pdev)
{
struct ata_host_set *host_set = dev_get_drvdata(&pdev->dev);
struct sil24_host_priv *hpriv = host_set->private_data;
ata_pci_device_do_resume(pdev);
if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND)
writel(HOST_CTRL_GLOBAL_RST, hpriv->host_base + HOST_CTRL);
sil24_init_controller(pdev, host_set->n_ports,
host_set->ports[0]->flags,
hpriv->host_base, hpriv->port_base);
ata_host_set_resume(host_set);
return 0;
}
static int __init sil24_init(void)
{
return pci_module_init(&sil24_pci_driver);