tree caeef0ea5f41eae2a005b6eab642e823d4791a0f
parent e4f48861993294c27849076741eb0c090482560b
author Semih Hazar <semih.hazar@indefia.com> 1184733364 -0400
committer Dmitry Torokhov <dtor@insightbb.com> 1184733364 -0400

Input: ads7846 - re-check pendown status before reporting events

Pendown status from the PENIRQ pin is currently read only at the beginning
of a sample set. If the pen is lifted just after sampling has began then
sampled values become wrong.

This patch adds an optional platform penirq_recheck_delay attribute.  If
non-zero, samples are only reported to the input subsystem if PENIRQ is
still active that long after the samples taken.

Signed-off-by: Semih Hazar <semih.hazar@indefia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>