linux-kernel - [char-misc 3.10] mei: me: clear interrupts on the resume path

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Message-Id: <1370418673-20112-1-git-send-email-tomas.winkler@intel.com>
Date:	Wed,  5 Jun 2013 10:51:13 +0300
From:	Tomas Winkler <tomas.winkler@...el.com>
To:	gregkh@...uxfoundation.org
Cc:	arnd@...db.de, linux-kernel@...r.kernel.org,
	Tomas Winkler <tomas.winkler@...el.com>
Subject: [char-misc 3.10] mei: me: clear interrupts on the resume path

We need to clear pending interrupts on the resume
path. This brings the device into defined state
before starting the reset flow

This should solve suspend/resume issues:

mei_me : wait hw ready failed. status = 0x0
mei_me : version message write failed

Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
 drivers/misc/mei/pci-me.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index a2f5520f..1b3844e 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -306,6 +306,7 @@ static int mei_me_pci_resume(struct device *device)
 
 	mutex_lock(&dev->device_lock);
 	dev->dev_state = MEI_DEV_POWER_UP;
+	mei_clear_interrupts(dev);
 	mei_reset(dev, 1);
 	mutex_unlock(&dev->device_lock);
 
-- 
1.8.1.2

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