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mei: bus: link client devices instead of host clients

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MEI bus was designed around nfc and was hard to extend.
Instead of the hard coded way of adding the devices on the mei bus
we scan the whole me client list and create a device for each
eligible me client (mei_cl_bus_rescan); currently we support
only clients with single connection and fixed address clients.
NFC radio name detection is run as a fixup routine

The patch replaces handling the device list based on struct me_cl
to device list based on me_cl_devices. The creating a connection
is pushed from the device creation time to device enablement.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2015-07-23 15:08:47 +03:00
committed by Greg Kroah-Hartman
parent b39910c2e0
commit 6009595a66
5 changed files with 227 additions and 324 deletions
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9
drivers/misc/mei/client.c
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@@ -558,7 +558,6 @@ void mei_cl_init(struct mei_cl *cl, struct mei_device *dev)
INIT_LIST_HEAD(&cl->rd_completed);
INIT_LIST_HEAD(&cl->rd_pending);
INIT_LIST_HEAD(&cl->link);
INIT_LIST_HEAD(&cl->device_link);
cl->writing_state = MEI_IDLE;
cl->state = MEI_FILE_INITIALIZING;
cl->dev = dev;
@@ -690,16 +689,12 @@ void mei_host_client_init(struct work_struct *work)
mei_wd_host_init(dev, me_cl);
mei_me_cl_put(me_cl);
me_cl = mei_me_cl_by_uuid(dev, &mei_nfc_guid);
if (me_cl)
mei_nfc_host_init(dev, me_cl);
mei_me_cl_put(me_cl);
dev->dev_state = MEI_DEV_ENABLED;
dev->reset_count = 0;
mutex_unlock(&dev->device_lock);
mei_cl_bus_rescan(dev);
pm_runtime_mark_last_busy(dev->dev);
dev_dbg(dev->dev, "rpm: autosuspend\n");
pm_runtime_autosuspend(dev->dev);