Linus, please pull from the for-linus branch at
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git for-linus
to receive a fix of the laptop-refuses-to-suspend kind. Or simply apply
the patch from this mail.
There is still an old underlying oddness though which I ask the PPC
folks to investigate and possibly fix post 2.6.23: On iBook G3 and
older PowerBooks, the onboard FireWire controller's pci_dev
current_state remains PCI_UNKNOWN long after initialization. Sounds like
a bug in platform code to me.
Stat, log, diff:
drivers/firewire/fw-ohci.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
commit 5511142870046a7bed947d51ec9b320856ee120a
Author: Stefan Richter <[email protected]>
Date: Thu Sep 6 09:50:30 2007 +0200
firewire: fw-ohci: ignore failure of pci_set_power_state (fix suspend regression)
Fixes (papers over) "Sleep problems with kernels >= 2.6.21 on powerpc",
http://lkml.org/lkml/2007/8/25/155. The issue is that the FireWire
controller's pci_dev.current_state of iBook G3 and presumably older
PowerBooks is still in PCI_UNKNOWN instead of PCI_D0 when the firewire
driver's .suspend method is called.
Like it was suggested earlier in http://lkml.org/lkml/2006/10/24/13, we
do not fail .suspend anymore if pci_set_power_state failed.
Signed-off-by: Stefan Richter <[email protected]>
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index 7e427b4..e14c1ca 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -1945,10 +1945,8 @@ static int pci_suspend(struct pci_dev *pdev, pm_message_t state)
return err;
}
err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
- if (err) {
- fw_error("pci_set_power_state failed\n");
- return err;
- }
+ if (err)
+ fw_error("pci_set_power_state failed with %d\n", err);
return 0;
}
--
Stefan Richter
-=====-=-=== =--= --===
http://arcgraph.de/sr/
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