From: Michael Hennerich <michael.hennerich@analog.com>
Date: Wed, 10 Mar 2010 04:38:47 +0000 (-0800)
Subject: Input: ad7877 - increase pen up imeout
X-Git-Tag: v2.6.34-rc2~43^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4eb6f91b95e7618eae0103b6cba7c7f01f9d40f3;p=pandora-kernel.git

Input: ad7877 - increase pen up imeout

The time interval between consecutive interrupts depends on a number of
tunables: first_conversion_delay, acquisition_time, averaging and foremost
the pen_down_acc_interval.

Since the mod_timer() action for the PEN UP event happens in the
spi_async() callback function, latencies incurred by the spi bus drivers
also need to be taken into account.

So all in all, give the PEN UP event a bit more wiggle room and increase
timeout to 100ms.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

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