From: Michael Grzeschik <m.grzeschik@pengutronix.de>
Date: Fri, 8 Feb 2013 23:54:54 +0000 (+0100)
Subject: usb: gadget: uvc: Implement videobuf2 .wait_prepare and .wait_finish operations
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~78^2~60^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2cc81d315c45cce35c0e50716fbee5dc00e28aa;p=pandora-kernel.git

usb: gadget: uvc: Implement videobuf2 .wait_prepare and .wait_finish operations

Those optional operations are used to release and reacquire the queue
lock when videobuf2 needs to perform operations that sleep for a long
time, such as waiting for a buffer to be complete. Implement them to
avoid blocking qbuf or streamoff calls when a dqbuf is in progress.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

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