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| author | Alan <alan@lxorguk.ukuu.org.uk> | 2006-11-22 16:59:07 +0000 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-01 22:46:52 -0500 |
| commit | 7f72a379146913dc5f2751383722cdedb8998bc9 (patch) | |
| tree | 4068fa874406dba6d6f6f253f52ba0de5513715a /drivers/ata/pata_cmd64x.c | |
| parent | 8501120f1df1aa6abe38b51ab91df08ccaa1b971 (diff) | |
| download | linux-7f72a379146913dc5f2751383722cdedb8998bc9.tar.gz linux-7f72a379146913dc5f2751383722cdedb8998bc9.tar.bz2 linux-7f72a379146913dc5f2751383722cdedb8998bc9.zip | |
[PATCH] pata_cmd64x: suspend/resume
On a resume of the CMD64x we must restore MRDMODE and latency if the BIOS
didn't get them right originally.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_cmd64x.c')
| -rw-r--r-- | drivers/ata/pata_cmd64x.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c index 29a60df465da..3376f3f4bad9 100644 --- a/drivers/ata/pata_cmd64x.c +++ b/drivers/ata/pata_cmd64x.c @@ -31,7 +31,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_cmd64x" -#define DRV_VERSION "0.2.1" +#define DRV_VERSION "0.2.2" /* * CMD64x specific registers definition. @@ -277,6 +277,8 @@ static struct scsi_host_template cmd64x_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 cmd64x_port_ops = { @@ -469,6 +471,20 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id) return ata_pci_init_one(pdev, port_info, 2); } +static int cmd64x_reinit_one(struct pci_dev *pdev) +{ + u8 mrdmode; + pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64); + pci_read_config_byte(pdev, MRDMODE, &mrdmode); + mrdmode &= ~ 0x30; /* IRQ set up */ + mrdmode |= 0x02; /* Memory read line enable */ + pci_write_config_byte(pdev, MRDMODE, mrdmode); +#ifdef CONFIG_PPC + pci_write_config_byte(pdev, UDIDETCR0, 0xF0); +#endif + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id cmd64x[] = { { PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_643), 0 }, { PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_646), 1 }, @@ -482,7 +498,9 @@ static struct pci_driver cmd64x_pci_driver = { .name = DRV_NAME, .id_table = cmd64x, .probe = cmd64x_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = cmd64x_reinit_one, }; static int __init cmd64x_init(void) |