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| author |   Alexander Usyskin <alexander.usyskin@intel.com> | 2021-02-06 16:43:21 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-06 15:48:11 +0100 |
| commit | 36edb1407c3c042240b5dbc2530d6e7119535baa (patch) | |
| tree | 62820903eddf4b8cfedc8b86a5c1abf523a5a098 /drivers/misc/mei/init.c | |
| parent | Merge tag 'mhi-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi into char-misc-next (diff) | |
| download | linux-dev-36edb1407c3c042240b5dbc2530d6e7119535baa.tar.xz linux-dev-36edb1407c3c042240b5dbc2530d6e7119535baa.zip | |
mei: allow clients on bus to communicate in remove callback
Introduce new intermediate state to allow the clients on the bus
to communicate with the firmware from the remove handler.
This is to enable to perform a clean shutdown.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20210206144325.25682-2-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/init.c')
| -rw-r--r-- | drivers/misc/mei/init.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index bcee77768b91..5c8cb679b997 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -303,9 +303,12 @@ void mei_stop(struct mei_device *dev) dev_dbg(dev->dev, "stopping the device.\n"); mutex_lock(&dev->device_lock); - mei_set_devstate(dev, MEI_DEV_POWER_DOWN); + mei_set_devstate(dev, MEI_DEV_POWERING_DOWN); mutex_unlock(&dev->device_lock); mei_cl_bus_remove_devices(dev); + mutex_lock(&dev->device_lock); + mei_set_devstate(dev, MEI_DEV_POWER_DOWN); + mutex_unlock(&dev->device_lock); mei_cancel_work(dev); |