From 48f4e889aa88368a9ac548bba39c37663d012739 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Fri, 13 Jan 2012 23:58:38 +0100
Subject: [PATCH 108/130] bcma: invalidate the mapped core over suspend/resume
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 28e7d218da975f6ae1751e293aed938952c55c98 upstream.

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.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/bcma/host_pci.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index 990f5a8..48e06be 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -227,11 +227,14 @@ 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;
 }
 
-- 
1.7.7.4

