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greybus: interface: send deactivate prepare when interface is disabled

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The AP Interface shall exchange a Greybus Control Interface Deactivate
Prepare Operation with the Interface being powered down.

Testing Done:
 - Check for the return code after sending the deactivate prepare operation

Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Alex Elder <elder@linaro.org>
This commit is contained in:
David Lin 2016-07-07 22:07:00 -05:00 • committed by Alex Elder
commit 576bffb5a8
1 changed files with 3 additions and 0 deletions
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3
drivers/staging/greybus/interface.c
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@ -861,6 +861,9 @@ void gb_interface_disable(struct gb_interface *intf)
list_for_each_entry_safe(bundle, next, &intf->bundles, links)
gb_bundle_destroy(bundle);
if (!intf->mode_switch && !intf->disconnected)
gb_control_interface_deactivate_prepare(intf->control);
gb_timesync_interface_remove(intf);
gb_control_del(intf->control);
gb_control_disable(intf->control);