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bcma: invalidate the mapped core over suspend/resume 

This clears the currently mapped core when suspending, to force
re-mapping after resume. Without that we were touching default core
registers believing some other core is mapped. Such a behaviour
resulted in lockups on some machines.

Cc: stable@vger.kernel.org
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2012-01-13 23:58:38 +01:00 committed by John W. Linville
parent 8675b505a4
commit 28e7d218da
1 changed files with 3 additions and 0 deletions
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3
drivers/bcma/host_pci.c
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@ -237,11 +237,14 @@ static void bcma_host_pci_remove(struct pci_dev *dev)
#ifdef CONFIG_PM
static int bcma_host_pci_suspend(struct pci_dev *dev, pm_message_t state)
{
struct bcma_bus *bus = pci_get_drvdata(dev);
/* Host specific */
pci_save_state(dev);
pci_disable_device(dev);
pci_set_power_state(dev, pci_choose_state(dev, state));
bus->mapped_core = NULL;
return 0;
}