diff options
| -rw-r--r-- | drivers/ata/pata_cs5520.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c index 33d2b88f9c797..f839c0304b3ab 100644 --- a/drivers/ata/pata_cs5520.c +++ b/drivers/ata/pata_cs5520.c @@ -41,7 +41,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_cs5520" -#define DRV_VERSION "0.6.2" +#define DRV_VERSION "0.6.3" struct pio_clocks { @@ -168,6 +168,8 @@ static struct scsi_host_template cs5520_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; static struct ata_port_operations cs5520_port_ops = { @@ -297,6 +299,22 @@ static void __devexit cs5520_remove_one(struct pci_dev *pdev) dev_set_drvdata(dev, NULL); } +/** + * cs5520_reinit_one - device resume + * @pdev: PCI device + * + * Do any reconfiguration work needed by a resume from RAM. We need + * to restore DMA mode support on BIOSen which disabled it + */ + +static int cs5520_reinit_one(struct pci_dev *pdev) +{ + u8 pcicfg; + pci_read_config_byte(pdev, 0x60, &pcicfg); + if ((pcicfg & 0x40) == 0) + pci_write_config_byte(pdev, 0x60, pcicfg | 0x40); + return ata_pci_device_resume(pdev); +} /* For now keep DMA off. We can set it for all but A rev CS5510 once the core ATA code can handle it */ @@ -311,7 +329,9 @@ static struct pci_driver cs5520_pci_driver = { .name = DRV_NAME, .id_table = pata_cs5520, .probe = cs5520_init_one, - .remove = cs5520_remove_one + .remove = cs5520_remove_one, + .suspend = ata_pci_device_suspend, + .resume = cs5520_reinit_one, }; static int __init cs5520_init(void) |