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authorTejun Heo <htejun@gmail.com>2006-07-03 03:07:27 -0400
committerJeff Garzik <jeff@garzik.org>2006-07-05 22:16:28 -0400
commitd2298dca9a2ec8a8ff23e251d8aaab00e9d229f9 (patch)
tree988451a6cc7596533d40c0fa3892c75e9aac3912 /drivers/scsi
parent2a41a6108d93a62910d1c36913d83a79b550b40a (diff)
[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>
Diffstat (limited to 'drivers/scsi')
-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 1850c2e3aa21..2e0f4a4076af 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -92,6 +92,7 @@ enum {
92 HOST_CTRL_STOP = (1 << 18), /* latched PCI STOP */ 92 HOST_CTRL_STOP = (1 << 18), /* latched PCI STOP */
93 HOST_CTRL_DEVSEL = (1 << 19), /* latched PCI DEVSEL */ 93 HOST_CTRL_DEVSEL = (1 << 19), /* latched PCI DEVSEL */
94 HOST_CTRL_REQ64 = (1 << 20), /* latched PCI REQ64 */ 94 HOST_CTRL_REQ64 = (1 << 20), /* latched PCI REQ64 */
95 HOST_CTRL_GLOBAL_RST = (1 << 31), /* global reset */
95 96
96 /* 97 /*
97 * Port registers 98 * Port registers
@@ -338,6 +339,7 @@ static int sil24_port_start(struct ata_port *ap);
338static void sil24_port_stop(struct ata_port *ap); 339static void sil24_port_stop(struct ata_port *ap);
339static void sil24_host_stop(struct ata_host_set *host_set); 340static void sil24_host_stop(struct ata_host_set *host_set);
340static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); 341static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
342static int sil24_pci_device_resume(struct pci_dev *pdev);
341 343
342static const struct pci_device_id sil24_pci_tbl[] = { 344static const struct pci_device_id sil24_pci_tbl[] = {
343 { 0x1095, 0x3124, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BID_SIL3124 }, 345 { 0x1095, 0x3124, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BID_SIL3124 },
@@ -353,6 +355,8 @@ static struct pci_driver sil24_pci_driver = {
353 .id_table = sil24_pci_tbl, 355 .id_table = sil24_pci_tbl,
354 .probe = sil24_init_one, 356 .probe = sil24_init_one,
355 .remove = ata_pci_remove_one, /* safe? */ 357 .remove = ata_pci_remove_one, /* safe? */
358 .suspend = ata_pci_device_suspend,
359 .resume = sil24_pci_device_resume,
356}; 360};
357 361
358static struct scsi_host_template sil24_sht = { 362static struct scsi_host_template sil24_sht = {
@@ -372,6 +376,8 @@ static struct scsi_host_template sil24_sht = {
372 .slave_configure = ata_scsi_slave_config, 376 .slave_configure = ata_scsi_slave_config,
373 .slave_destroy = ata_scsi_slave_destroy, 377 .slave_destroy = ata_scsi_slave_destroy,
374 .bios_param = ata_std_bios_param, 378 .bios_param = ata_std_bios_param,
379 .suspend = ata_scsi_device_suspend,
380 .resume = ata_scsi_device_resume,
375}; 381};
376 382
377static const struct ata_port_operations sil24_ops = { 383static 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)
1179 return rc; 1185 return rc;
1180} 1186}
1181 1187
1188static int sil24_pci_device_resume(struct pci_dev *pdev)
1189{
1190 struct ata_host_set *host_set = dev_get_drvdata(&pdev->dev);
1191 struct sil24_host_priv *hpriv = host_set->private_data;
1192
1193 ata_pci_device_do_resume(pdev);
1194
1195 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND)
1196 writel(HOST_CTRL_GLOBAL_RST, hpriv->host_base + HOST_CTRL);
1197
1198 sil24_init_controller(pdev, host_set->n_ports,
1199 host_set->ports[0]->flags,
1200 hpriv->host_base, hpriv->port_base);
1201
1202 ata_host_set_resume(host_set);
1203
1204 return 0;
1205}
1206
1182static int __init sil24_init(void) 1207static int __init sil24_init(void)
1183{ 1208{
1184 return pci_module_init(&sil24_pci_driver); 1209 return pci_module_init(&sil24_pci_driver);