From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752676AbbKIRdz (ORCPT ); Mon, 9 Nov 2015 12:33:55 -0500 Received: from mail.kernel.org ([198.145.29.136]:51097 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752358AbbKIRdd (ORCPT ); Mon, 9 Nov 2015 12:33:33 -0500 Date: Mon, 9 Nov 2015 11:33:27 -0600 From: Rob Herring To: "H. Nikolaus Schaller" Cc: Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , =?iso-8859-1?Q?Beno=EEt?= Cousson , Tony Lindgren , Russell King , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, gta04-owner@goldelico.com Subject: Re: [PATCH 1/7] drivers:input:tsc2007: add new common binding names, pre-calibration, flipping and rotation Message-ID: <20151109173327.GA14524@rob-hp-laptop> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 06, 2015 at 04:14:43PM +0100, H. Nikolaus Schaller wrote: > commit b98abe52fa8e ("Input: add common DT binding for touchscreens") > introduced common DT bindings for touchscreens [1] and a helper function to > parse the DT. > > This has been integrated and interpretation of the inversion (flipping) > properties for the x and y axis has been added to accommodate any > orientation of the touch in relation to the LCD. > > By scaling the min/max ADC values to the screen size it is now possible to > pre-calibrate the touch so that is (almost) exactly matches the LCD it is > glued onto. This allows to well enough operate the touch before a user > space calibration can improve the precision. > > calculate_pressure has been renamed to calculate_resistance because > that is what it is doing. > > [1]: Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt > > Signed-off-by: H. Nikolaus Schaller > --- > .../bindings/input/touchscreen/tsc2007.txt | 20 +-- > drivers/input/touchscreen/tsc2007.c | 135 +++++++++++++++++---- > include/linux/i2c/tsc2007.h | 8 ++ > 3 files changed, 135 insertions(+), 28 deletions(-) This one has similar problems with breaking backwards compatibility. Rob