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authorAlan <alan@lxorguk.ukuu.org.uk>2006-11-22 17:18:30 +0000
committerJeff Garzik <jeff@garzik.org>2006-12-01 22:46:43 -0500
commitd39ca896fb9a25f80465d3e52872cf5c510762a8 (patch)
treee75e337e59722060029596df12ba0a0a94e7557e /drivers/ata
parentf7e37ba83fd3e92411dfc97d08eaf9d85dfac2ee (diff)
[PATCH] pata_jmicron: fix JMB368 support, add suspend/resume handling
This (and the pci resume quirk code) get the JMicron controllers to resume properly. Without this patch the drive mapping changes when you suspend/resume which is not good at all.... Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/pata_jmicron.c34
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 0210b10d49c..c9f0a543b27 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -19,7 +19,7 @@
#include <linux/ata.h>
#define DRV_NAME "pata_jmicron"
-#define DRV_VERSION "0.1.2"
+#define DRV_VERSION "0.1.4"
typedef enum {
PORT_PATA0 = 0,
@@ -213,12 +213,11 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i
/* FIXME: We may want a way to override this in future */
pci_write_config_byte(pdev, 0x41, 0xa1);
- }
-
- /* PATA controller is fn 1, AHCI is fn 0 */
- if (PCI_FUNC(pdev->devfn) != 1)
- return -ENODEV;
+ /* PATA controller is fn 1, AHCI is fn 0 */
+ if (PCI_FUNC(pdev->devfn) != 1)
+ return -ENODEV;
+ }
if ( id->driver_data == 365 || id->driver_data == 366) {
/* The 365/66 have two PATA channels, redirect the second */
pci_read_config_dword(pdev, 0x80, &reg);
@@ -229,6 +228,27 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i
return ata_pci_init_one(pdev, port_info, 2);
}
+static int jmicron_reinit_one(struct pci_dev *pdev)
+{
+ u32 reg;
+
+ switch(pdev->device) {
+ case PCI_DEVICE_ID_JMICRON_JMB368:
+ break;
+ case PCI_DEVICE_ID_JMICRON_JMB365:
+ case PCI_DEVICE_ID_JMICRON_JMB366:
+ /* Restore mapping or disks swap and boy does it get ugly */
+ pci_read_config_dword(pdev, 0x80, &reg);
+ reg |= (1 << 24); /* IDE1 to PATA IDE secondary */
+ pci_write_config_dword(pdev, 0x80, reg);
+ /* Fall through */
+ default:
+ /* Make sure AHCI is turned back on */
+ pci_write_config_byte(pdev, 0x41, 0xa1);
+ }
+ return ata_pci_device_resume(pdev);
+}
+
static const struct pci_device_id jmicron_pci_tbl[] = {
{ PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB361), 361},
{ PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB363), 363},
@@ -244,6 +264,8 @@ static struct pci_driver jmicron_pci_driver = {
.id_table = jmicron_pci_tbl,
.probe = jmicron_init_one,
.remove = ata_pci_remove_one,
+ .suspend = ata_pci_device_suspend,
+ .resume = jmicron_reinit_one,
};
static int __init jmicron_init(void)