From 7cb035d9e619a8d20f5d3b9791f8cb5160d19e70 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Sun, 10 Mar 2013 13:56:08 +0200 Subject: mei: add mei_stop function to stop mei device mei_stop calls mei_reset with disabling the interrupts. It will have the same effect as the open code it replaces in the mei_remove. The reset sequence on remove is required for the Lynx Point LP devices to clean the reset state. mei_stop is called from mei_pci_suspend and mei_remove functions Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/init.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/misc/mei/init.c') diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 6ec530168afb..356179991a2e 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(); +} + -- cgit