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Date: Tue, 28 Mar 2017 21:02:29 -0500 From: Rob Herring <robh@...nel.org> To: David Rivshin <drivshin@...rd.com> Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>, Mark Rutland <mark.rutland@....com>, linux-input@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] input: matrix_keypad: add option to drive inactive columns On Wed, Mar 22, 2017 at 04:16:50PM -0400, David Rivshin wrote: > From: David Rivshin <DRivshin@...worx.com> > > The gpio-matrix-keypad driver normally sets inactive columns as inputs > while scanning. This does not work for all hardware, which may require > the inactive columns to be actively driven in order to overcome any > pull-ups/downs on the columns. > > Signed-off-by: David Rivshin <drivshin@...worx.com> > --- > .../devicetree/bindings/input/gpio-matrix-keypad.txt | 2 ++ > drivers/input/keyboard/matrix_keypad.c | 13 +++++++++---- > include/linux/input/matrix_keypad.h | 3 +++ > 3 files changed, 14 insertions(+), 4 deletions(-) Acked-by: Rob Herring <robh@...nel.org>
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