From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DCC87C64ED9 for ; Mon, 27 Feb 2023 22:24:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bSOE25v5QaP0WSmu3fKcXWB9E85MeJ/5IS7D0uwHP5E=; b=U85QHGBxcSQjvJ L3bu0HjVxXlo9nrfyclodfnkaU+CPkubgz3YMo48u4e5FSa937rtWGD5OpkRg5tfgK3AS8ZL6pWRx B502OM+EP1ZjNXjupRwbQCY3KRr4gDdoG5XyFA539Jh+f5giSd/EzYXCzi1rouSw7IdOaH3/TeiZf LmqLBhKH4UfPWK31+AoIvhhon1iQNNbfrltcAsPX+39LzMc4bHFiNZFC3fBIN78I3qldsAPIltaMF 3bp61A3QfZ1l1w1bbN01ugoGI/ZpjiZwpXRGIORGmcrOVagIe2BDJBFGOqT120RsO19jWyvjEGWA/ mFffEIN+LHndFxrRnMWQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pWlts-00BQcO-99; Mon, 27 Feb 2023 22:23:16 +0000 Received: from mail-oa1-f42.google.com ([209.85.160.42]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pWltq-00BQbo-6y for linux-arm-kernel@lists.infradead.org; Mon, 27 Feb 2023 22:23:15 +0000 Received: by mail-oa1-f42.google.com with SMTP id 586e51a60fabf-17264e9b575so8988298fac.9 for ; Mon, 27 Feb 2023 14:23:11 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=IGidbQmDp0y8QHK1i8MQiE3zuAGUVCeiQUrW3n/jLQA=; b=jDwb7vBbG1cb/tReGLP5LjX5FHYaNRQJ5qR+kFc9p6ELT/a5Q7lyDX+FoWNRmG5W4O ZE/lSqEk+HJdqS9nZKjK2jOat0sN+iuqTSqFTra6LbxSCXX8Io/PFC8JlhWA3998ta85 +pqLNbtnT+aaa2eUAgUxsdop/l5zPyDZ1DWgOS0ZLebZ3s8KIY8tyT3EfQWzZstBK5P/ yrqqz/gtVmwYH87FDPQDF/q4vndCqM6WU59LxEOseT2eLCsbjOAce37nF1dfQwxPvk/I grfnaUK1UCEI/G1UiOFY58PKFgktH7RkLqv5Jtmg+Sn6Ad9lEhfLGNDIMMywSnNnoxiZ kuEA== X-Gm-Message-State: AO0yUKWTxkwcKoZFuBumSOu36ToKof4dmuk6bua2bWj9uIrjB3zdFYfA r5l7fafIh50m53gi7p2/xg== X-Google-Smtp-Source: AK7set/Usgaz2hjzp8Gr6Ihin9hinyRkpzjsT99cLWKoo13twDWuN7/AAI9t8LMvnbIpKemlE0N/Pw== X-Received: by 2002:a05:6870:588a:b0:16d:ba05:23a7 with SMTP id be10-20020a056870588a00b0016dba0523a7mr232309oab.26.1677536590586; Mon, 27 Feb 2023 14:23:10 -0800 (PST) Received: from robh_at_kernel.org (66-90-144-107.dyn.grandenetworks.net. [66.90.144.107]) by smtp.gmail.com with ESMTPSA id 66-20020a9d04c8000000b0068663820588sm3170854otm.44.2023.02.27.14.23.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Feb 2023 14:23:10 -0800 (PST) Received: (nullmailer pid 1207434 invoked by uid 1000); Mon, 27 Feb 2023 22:23:09 -0000 Date: Mon, 27 Feb 2023 16:23:09 -0600 From: Rob Herring To: Sasha Finkelstein Cc: Sven Peter , Hector Martin , Alyssa Rosenzweig , Dmitry Torokhov , Krzysztof Kozlowski , - , Henrik Rydberg , linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH RFC 1/4] dt-bindings: input: touchscreen: Add Z2 controller bindings. Message-ID: <20230227222309.GB1048218-robh@kernel.org> References: <20230223-z2-for-ml-v1-0-028f2b85dc15@gmail.com> <20230223-z2-for-ml-v1-1-028f2b85dc15@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230227_142314_274742_C6E618DD X-CRM114-Status: GOOD ( 15.04 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Feb 24, 2023 at 12:08:42PM +0100, Sasha Finkelstein wrote: > On Fri, 24 Feb 2023 at 12:04, Sven Peter wrote: > > Now that I thought about this again after the brief discussion we already had: > > Do we even need to specify the device name? Is there any reason we can't just > > always use something like "Apple Z2 TouchBar"? > A similar protocol is used for primary touchscreen on idevices, which Similar? So close, but somehow different. > need different > userspace handling. This is to make the driver potentially useful for > people who run > linux on checkra1n-able devices. It is sounding to me like you need different compatibles. Don't try to parameterize the differences with properties. Unless you can define all the differences up front (hint: you can't). Rob _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel