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authorAlan Cox <alan@redhat.com>2008-10-17 19:08:31 +0100
committerJeff Garzik <jgarzik@redhat.com>2008-10-28 00:35:59 -0400
commite7c0d217cdaa837d30bc265eddac4d176969fd68 (patch)
tree72f4ccbfc074c003ac2a8d80308b715cfb269f87 /drivers/ata/pata_ninja32.c
parent054e5f616b5becdc096b793407dc33fe379749ac (diff)
downloadlinux-e7c0d217cdaa837d30bc265eddac4d176969fd68.tar.bz2
pata_ninja32: suspend/resume support
I had assumed that the standard recovery would be sufficient for this hardware but it isn't. Fix up the other registers on resume as needed. See bug #11735 Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_ninja32.c')
-rw-r--r--drivers/ata/pata_ninja32.c43
1 files changed, 34 insertions, 9 deletions
diff --git a/drivers/ata/pata_ninja32.c b/drivers/ata/pata_ninja32.c
index 5e76f96ec7e5..4e466eae8b46 100644
--- a/drivers/ata/pata_ninja32.c
+++ b/drivers/ata/pata_ninja32.c
@@ -44,7 +44,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_ninja32"
-#define DRV_VERSION "0.0.1"
+#define DRV_VERSION "0.1.1"
/**
@@ -88,6 +88,17 @@ static struct ata_port_operations ninja32_port_ops = {
.set_piomode = ninja32_set_piomode,
};
+static void ninja32_program(void __iomem *base)
+{
+ iowrite8(0x05, base + 0x01); /* Enable interrupt lines */
+ iowrite8(0xBE, base + 0x02); /* Burst, ?? setup */
+ iowrite8(0x01, base + 0x03); /* Unknown */
+ iowrite8(0x20, base + 0x04); /* WAIT0 */
+ iowrite8(0x8f, base + 0x05); /* Unknown */
+ iowrite8(0xa4, base + 0x1c); /* Unknown */
+ iowrite8(0x83, base + 0x1d); /* BMDMA control: WAIT0 */
+}
+
static int ninja32_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
struct ata_host *host;
@@ -133,18 +144,28 @@ static int ninja32_init_one(struct pci_dev *dev, const struct pci_device_id *id)
ap->ioaddr.bmdma_addr = base;
ata_sff_std_ports(&ap->ioaddr);
- iowrite8(0x05, base + 0x01); /* Enable interrupt lines */
- iowrite8(0xBE, base + 0x02); /* Burst, ?? setup */
- iowrite8(0x01, base + 0x03); /* Unknown */
- iowrite8(0x20, base + 0x04); /* WAIT0 */
- iowrite8(0x8f, base + 0x05); /* Unknown */
- iowrite8(0xa4, base + 0x1c); /* Unknown */
- iowrite8(0x83, base + 0x1d); /* BMDMA control: WAIT0 */
+ ninja32_program(base);
/* FIXME: Should we disable them at remove ? */
return ata_host_activate(host, dev->irq, ata_sff_interrupt,
IRQF_SHARED, &ninja32_sht);
}
+#ifdef CONFIG_PM
+
+static int ninja32_reinit_one(struct pci_dev *pdev)
+{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
+ ninja32_program(host->iomap[0]);
+ ata_host_resume(host);
+ return 0;
+}
+#endif
+
static const struct pci_device_id ninja32[] = {
{ 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
@@ -155,7 +176,11 @@ static struct pci_driver ninja32_pci_driver = {
.name = DRV_NAME,
.id_table = ninja32,
.probe = ninja32_init_one,
- .remove = ata_pci_remove_one
+ .remove = ata_pci_remove_one,
+#ifdef CONFIG_PM
+ .suspend = ata_pci_device_suspend,
+ .resume = ninja32_reinit_one,
+#endif
};
static int __init ninja32_init(void)