From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: Kernel touch Kconfig consult Date: Sun, 23 Jun 2019 00:02:49 -0700 Message-ID: <20190623070249.GD204275@dtor-ws> References: <1560509239.24963.25.camel@mbjsdccf07> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Content-Disposition: inline In-Reply-To: <1560509239.24963.25.camel@mbjsdccf07> Sender: linux-kernel-owner@vger.kernel.org To: "luhua.xu" Cc: Rob Herring , Marek Vasut , Nick Dyer , Richard Leitner , Martin Kepplinger , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, weiqi.fu@mediatek.com, wsd_upstream@mediatek.com List-Id: linux-input@vger.kernel.org Hi, On Fri, Jun 14, 2019 at 06:47:19AM -0400, luhua.xu wrote: > Hi Dmitry,Rob,Marek, Nick,Richard,Martin, > > In our customer support experience, many smartphone have two or three > touch vendor mixture , and customer use one load to support all touches. > For easy to config touch driver we use kernel config like this down > below, > > We change the config type from 'bool' to 'string'. > > config TOUCHSCREEN_MTK_TOUCH > string "Touch IC name for Mediatek package" > help > Set touch IC name if you have touch panel. > To compile this dirver for used touch IC. > > > And we config touch driver like this： > CONFIG_TOUCHSCREEN_MTK_TOUCH="GT9886 GT1151 TD4320" > > I only use one config to support 3 touches, while we have to use 3 > config to support 3 touch drivers if we set the config as 'bool'. > > So can I use Kconfig like this? > I do look forward to receiving your reply at your convenience . > I really do not see why having a sting is easier to have than 3 bools, especially if they pertain to different touch controllers. You must also have some custom processing of the config above as I am pretty sure our standard build tools would not work for it. Thanks. -- Dmitry