From mboxrd@z Thu Jan 1 00:00:00 1970 From: Javier Martinez Canillas Subject: Re: [PATCH 0/2] Input: atmel_mxt_ts - Add support for T100 multi-touch Date: Fri, 27 Mar 2015 21:29:58 +0100 Message-ID: <5515BDC6.1040606@collabora.co.uk> References: <1426600846-13346-1-git-send-email-javier.martinez@collabora.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from bhuna.collabora.co.uk ([93.93.135.160]:39786 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752549AbbC0UaF (ORCPT ); Fri, 27 Mar 2015 16:30:05 -0400 In-Reply-To: <1426600846-13346-1-git-send-email-javier.martinez@collabora.co.uk> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Dmitry Torokhov Cc: Henrik Rydberg , Nick Dyer , Sjoerd Simons , Doug Anderson , Olof Johansson , Yufeng Shen , Benson Leung , Chung-yih Wang , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Hello Dmitry, On 03/17/2015 03:00 PM, Javier Martinez Canillas wrote: > > This is a resend of the T100 muli-touch object type support for the Atmel > maXTouch touchscreen driver. Old chips use the T9 multi-touch object type > while newer chips use this T100 multi-touch object type which is currenty > not supported by the driver. > > Nick Dyer posted his patch to add T100 support a couple of times, the last > one being 3 months ago [0]. Ben suggested using ABS_MT_DISTANCE to handle > fingers hovering and pointed to Chung-yih Wang work [1] in the ChromiumOS > downstream tree. Nick said he would work on that and re-post but he didn't. > > Using ABS_MT_DISTANCE to indicate contact hovering is also suggested in > Documentation/input/multi-touch-protocol.txt so I took Nick's patch, rebased > on top of linux-next, refactored a bit to remove some code duplication and > addressed Ben concerns by integrating Chung-yih's work to report hovering > using ABS_MT_DISTANCE. > > The series is composed of the following patches: > > Nick Dyer (1): > Input: atmel_mxt_ts - Implement support for T100 touch object > > Sjoerd Simons (1): > Input: atmel_mxt_ts - Split out touchpad initialisation logic > > drivers/input/touchscreen/atmel_mxt_ts.c | 371 +++++++++++++++++++++++++++---- > 1 file changed, 330 insertions(+), 41 deletions(-) > > Patch #1 adds the support for the T100 touch object and patch #2 is a > cleanup to simplify the driver's input device initialization function. > > The series were tested on an Exynos5800 Peach Pi which needs T100 support > and on an Exynos5420 Peach Pit to be sure that T9 is still working. > Any comments about this series? Best regards, Javier