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authorStefan Richter <stefanr@s5r6.in-berlin.de>2006-11-11 00:22:35 +0100
committerStefan Richter <stefanr@s5r6.in-berlin.de>2006-12-07 23:04:14 +0100
commit48cfae44b4d6c7ca843d611a93ed2f94b59bcb38 (patch)
tree84780f3022ca5c3dc0b82ac4eb7db553d6813f24 /drivers/ieee1394
parent58272c1c0330f5f899f130d45ce845ca085de044 (diff)
ieee1394: ohci1394: add PPC_PMAC platform code to driver probe
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=7431 iBook G3 threw a machine check exception and put the display backlight to full brightness after ohci1394 was unloaded and reloaded. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/ieee1394')
-rw-r--r--drivers/ieee1394/ohci1394.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c
index b8e922b65e2..453d0be694e 100644
--- a/drivers/ieee1394/ohci1394.c
+++ b/drivers/ieee1394/ohci1394.c
@@ -3215,6 +3215,19 @@ static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
struct ti_ohci *ohci; /* shortcut to currently handled device */
resource_size_t ohci_base;
+#ifdef CONFIG_PPC_PMAC
+ /* Necessary on some machines if ohci1394 was loaded/ unloaded before */
+ if (machine_is(powermac)) {
+ struct device_node *of_node = pci_device_to_OF_node(dev);
+
+ if (of_node) {
+ pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, of_node,
+ 0, 1);
+ pmac_call_feature(PMAC_FTR_1394_ENABLE, of_node, 0, 1);
+ }
+ }
+#endif /* CONFIG_PPC_PMAC */
+
if (pci_enable_device(dev))
FAIL(-ENXIO, "Failed to enable OHCI hardware");
pci_set_master(dev);
@@ -3503,10 +3516,8 @@ static void ohci1394_pci_remove(struct pci_dev *pdev)
#endif
#ifdef CONFIG_PPC_PMAC
- /* On UniNorth, power down the cable and turn off the chip
- * clock when the module is removed to save power on
- * laptops. Turning it back ON is done by the arch code when
- * pci_enable_device() is called */
+ /* On UniNorth, power down the cable and turn off the chip clock
+ * to save power on laptops */
{
struct device_node* of_node;