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authorTejun Heo <htejun@gmail.com>2006-07-03 16:07:27 +0900
committerJeff Garzik <jeff@garzik.org>2006-07-05 22:16:28 -0400
commitd2298dca9a2ec8a8ff23e251d8aaab00e9d229f9 (patch)
tree988451a6cc7596533d40c0fa3892c75e9aac3912
parent2a41a6108d93a62910d1c36913d83a79b550b40a (diff)
downloadlinux-2.6.34-ux500-d2298dca9a2ec8a8ff23e251d8aaab00e9d229f9.tar.gz
[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>
-rw-r--r--drivers/scsi/sata_sil24.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 1850c2e3aa2..2e0f4a4076a 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -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);