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authorArnd Bergmann <arnd@arndb.de>2013-04-08 17:46:16 +0200
committerArnd Bergmann <arnd@arndb.de>2013-04-08 17:46:16 +0200
commit81211c4cc04ca33f7c3ae10de547113e34d9a59e (patch)
tree974df8aac30b4dfaa8bd2f8caddb6611bcb19ae4 /drivers/misc/mei/init.c
parentb62d7946b2dd04e07734313a450cb0a8b440f206 (diff)
parent55985e15b80beb339d3e332f00a26003deff14e6 (diff)
Merge tag 'mxs-fixes-3.9-4' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo <shawn.guo@linaro.org>: The mxs fixes for 3.9, take 4: - A couple mxs boards that run I2C at 400 kHz experience some unstable issue occasionally. Slow down the clock speed to have I2C work reliably. * tag 'mxs-fixes-3.9-4' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: mxs: Slow down the I2C clock speed Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/misc/mei/init.c')
-rw-r--r--drivers/misc/mei/init.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 6ec530168af..356179991a2 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -183,6 +183,24 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
mei_cl_all_write_clear(dev);
}
+void mei_stop(struct mei_device *dev)
+{
+ dev_dbg(&dev->pdev->dev, "stopping the device.\n");
+
+ mutex_lock(&dev->device_lock);
+
+ cancel_delayed_work(&dev->timer_work);
+
+ mei_wd_stop(dev);
+
+ dev->dev_state = MEI_DEV_POWER_DOWN;
+ mei_reset(dev, 0);
+
+ mutex_unlock(&dev->device_lock);
+
+ flush_scheduled_work();
+}
+