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 X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8C6CC433DF for ; Tue, 26 May 2020 04:17:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BED92068D for ; Tue, 26 May 2020 04:17:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BHI6H2w1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725780AbgEZERY (ORCPT ); Tue, 26 May 2020 00:17:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725271AbgEZERW (ORCPT ); Tue, 26 May 2020 00:17:22 -0400 Received: from mail-pj1-x1041.google.com (mail-pj1-x1041.google.com [IPv6:2607:f8b0:4864:20::1041]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9CF93C061A0E; Mon, 25 May 2020 21:17:22 -0700 (PDT) Received: by mail-pj1-x1041.google.com with SMTP id nu7so666476pjb.0; Mon, 25 May 2020 21:17:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=6o/o+Jv3gwNHSfvO0tkT6qW0FWSl9BT2+HXVVh3U+D0=; b=BHI6H2w15Aqi5jiqB4PePC819f5X/HN8LSauSUa1/yx5dye2yFOlcsiHT2tKpBtnDW NMvajpNLn56HX70Z2MCK1ut6clYudn3Fs/whhGOtaeXe8rq+z0be4czEFgfNbpE61DrS wN/LN4Rfkk/xhR438yyd+jfEMXH0Epb0yjuiVlfgrnRgbyItnwY3FkMgYYwJ8TnhCXUS +2TQirueZYRuYqTTcP0Sy2As6vwwxrCSs3yoh2ezmg4LDTo3Q67pnyT3oV+jmvCYacIK SXuJmHB94c8jCfAKQeqcd+UHWjcC9Mlp9SjPCCZXT7lgnxulpl0c79auw/XobOyVRvDO FXkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=6o/o+Jv3gwNHSfvO0tkT6qW0FWSl9BT2+HXVVh3U+D0=; b=SIUKnPNIFvD3PPxSs7IFWURRH5Du51dk20aFLP7HXnKI5iG0fgTbybaKwJroDl9krH rcgkcqW0lp6oqn9NqcHG6jkpKwdIG5q+MPVh8aQkhImA6MwWDoiYCQy6G+KQdcMedbcu YgIQ11bgjL/i1QLBv3tY9gjFuCUbwuDsvfAm9WkOlk+f+sHAdqJ5+gdWGsNURCqYBWaj 27m+Y4gEHYATJalThYqRqocfXnIz7J+c6ddvU63ryyow9lCQ6rCSsutS+U3xxtvIlw6X elPaxg+z4n9/sejaJG3Ygy53aB/XVi3sTabNpLB8Sq+Cio96WJoxAWpLdcJSgkDTcCYd hpbA== X-Gm-Message-State: AOAM531PceIu6WFWvn5EabfsfeNVkum27tdsTABWR7808EBnjXMXl0eL hC4Yp9Sox5RJkPAzD9bR1wQ= X-Google-Smtp-Source: ABdhPJznqcK2/wo1dTuzvWcN7qrBYgqKOYix74k5a+mmoQVAuraoW75+CsDhQ3JkxsSgKqRXUjUJPw== X-Received: by 2002:a17:902:7885:: with SMTP id q5mr31302825pll.320.1590466641982; Mon, 25 May 2020 21:17:21 -0700 (PDT) Received: from dtor-ws ([2620:15c:202:201:3c2a:73a9:c2cf:7f45]) by smtp.gmail.com with ESMTPSA id j24sm12892058pga.51.2020.05.25.21.17.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 May 2020 21:17:21 -0700 (PDT) Date: Mon, 25 May 2020 21:17:19 -0700 From: Dmitry Torokhov To: "Jingle.Wu" Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, phoenix@emc.com.tw, dave.wang@emc.com.tw, josh.chen@emc.com.tw Subject: Re: [PATCH] Input: elantech - Remove read/write registers in attr. Message-ID: <20200526041719.GH89269@dtor-ws> References: <20200526022246.4542-1-jingle.wu@emc.com.tw> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200526022246.4542-1-jingle.wu@emc.com.tw> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Hi Jingle, On Tue, May 26, 2020 at 10:22:46AM +0800, Jingle.Wu wrote: > New Elan IC would not be accessed with the specific regiters. What about older Elaan parts? We can't simply drop compatibility with older chips in newer kernels. Thanks. -- Dmitry