From 28e7d218da975f6ae1751e293aed938952c55c98 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Fri, 13 Jan 2012 23:58:38 +0100 Subject: [PATCH] bcma: invalidate the mapped core over suspend/resume MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: John W. Linville --- drivers/bcma/host_pci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c index 443b83a2fd7a..c1ca9e3ada5c 100644 --- a/drivers/bcma/host_pci.c +++ b/drivers/bcma/host_pci.c @@ -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; } -- 2.20.1