Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp504445yba; Sun, 31 Mar 2019 05:21:17 -0700 (PDT) X-Google-Smtp-Source: APXvYqwfmgnP9vRNqnMXTKk+xbQbM+ohHoePX3cjaY7Yo8V7hFT+FIKYaZoo1IBbIBh43ktMzG/b X-Received: by 2002:a62:6402:: with SMTP id y2mr29185878pfb.194.1554034877088; Sun, 31 Mar 2019 05:21:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1554034877; cv=none; d=google.com; s=arc-20160816; b=lPG5HlhUBYqy4IsJsHzXHYQhY9RwMS9hwob/ObkmLlLg6rNB/GUqgZPNbDAMVBP44a loE673lOD3GcggvErJXlz5Sa3jFozGRaZHXNXJWQbocLqzpvXCQAvAXPzOEhudzPBAt9 7Pq0Zcp+pFOqe1qKlWlwkJAkpCdjC/jfaXQkjDL5FPEFuPvwhaAPP7/pgQZkJxsG9fpp YDc9pf4nvxZc5TDBoTUyXeyT9/tb0MeylLr+CK5tTPab+b9POam9Rd75CZnkRW1dEI/8 qj5YS2kzincGnb7icEsG4LJBkpKAaIzEaSGXJBxjf4JvB9B5SWJ1Kd6WsSxdrZvrIKX3 ZoTg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=xSybAyrdLw33vq1UDxnMPu9wvEFTX4RtzrE5Btn6TvY=; b=gbpkzrGwbyBtdUcLVbeB8XuZfNATnchFN8ci2BOblRYYnupQR5juq6BzPr7R0S43SF w4+OX7q+gkg0aTZ0VtWuGCPoZhkaOSw9qmqo5SokszZ/r03BpY5/Fd1HT8pmyvaecfx1 GoMFRvaupewwLGykANrqvIPVIuyJOrgV8tkPb/JAmtMshZ/VbAsz7+fLzb/bn+Ydz2Fl +bRWNKlgOGbvuT+dzXauTXrblXifAy9zDrkkcUo24zWWcr5xgBIqEs4whF3UFQLkU6AY z6GzIVpQL/CN8sMeuezrcwE3FUk10ikoXdM009hAbIVeWu3EXTvHIf0iqeLnjsrBrbh2 y5gw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=h9IF1x83; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t10si6475866plr.229.2019.03.31.05.20.47; Sun, 31 Mar 2019 05:21:17 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=h9IF1x83; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731231AbfCaMTu (ORCPT + 99 others); Sun, 31 Mar 2019 08:19:50 -0400 Received: from mail-wm1-f67.google.com ([209.85.128.67]:40300 "EHLO mail-wm1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726734AbfCaMTt (ORCPT ); Sun, 31 Mar 2019 08:19:49 -0400 Received: by mail-wm1-f67.google.com with SMTP id z24so8063991wmi.5; Sun, 31 Mar 2019 05:19:48 -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:user-agent; bh=xSybAyrdLw33vq1UDxnMPu9wvEFTX4RtzrE5Btn6TvY=; b=h9IF1x83Fwjt+Vi0OjRqFq0xysg94YuVtk8OaJ8D/X9jcJ0f0e8983EqqKIGxTMIWE gX1IxoACzbbIWSAxTcbBgY8kRg57jeANYJnq510AAdouSqTTPuIbKyxQJi5sTmjIr4xV M9GkmPF1EfSgW549y5Z/JH06JP7teT0T4zaQJSEiFI7ZFfrI6G8rkYGma9ZKWewmbw8z mGmcQi+6MExP+9oyhM0jCSRMH/jndLRYsk5GEK+YLSI5z8BWwnxP9wqJ5AmNBlxin8oK zj361V4S0ElvqLNzk8RVWo8yVsxJnZQD7hh3IlEW5+z91PTMrK/OcEDnCjTDyXHYFRwU ChAA== 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:user-agent; bh=xSybAyrdLw33vq1UDxnMPu9wvEFTX4RtzrE5Btn6TvY=; b=NiHGjOSSvzPq9GU3O98jXwYPq2vFQHkyjZJziE9oVrTUK6SiPxQvXIEkNI7fGABOPZ 2cOPkdJtCoINPETBodPdi4alTyBQQRta6QXjg81HcVZtAnb4OIpqvX4N12OGFjiOEyQW O6pJaO/JEqJF9j3p7Q1+NRtgq6Fs2sznns3PwyA4CmF//pUsP8tOGwBGqqxErQI3Zm3K rh9YmPDA493r+FXkr/ECYO7ZUfbm5T2k2l0LWo4V7JOv7X2l0MMs6O1NzVA0KqRB29ja yorIyjQ+9ShUMgt6N/g/TQG3FRuXdw3fbwDXNe0eHZV6E1rUfL2iPfvIkZc0wiMKvPDU W6Ww== X-Gm-Message-State: APjAAAXvXYZSGfaC1IDj7WuYR/qZpmBA+zsKrjpbE6luTT0NJPhC3or4 zCsska0lF4DXLlnxHMhdP6xUhkMRf0w= X-Received: by 2002:a1c:808c:: with SMTP id b134mr9586016wmd.16.1554034787556; Sun, 31 Mar 2019 05:19:47 -0700 (PDT) Received: from debian (cpc101300-bagu16-2-0-cust362.1-3.cable.virginm.net. [86.21.41.107]) by smtp.gmail.com with ESMTPSA id i28sm24179166wrc.32.2019.03.31.05.19.46 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 31 Mar 2019 05:19:46 -0700 (PDT) Date: Sun, 31 Mar 2019 13:19:44 +0100 From: Sudip Mukherjee To: Yifeng Li Cc: Teddy Wang , Bartlomiej Zolnierkiewicz , linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH 4/8] fbdev: sm712fb: fix boot screen glitch when sm712fb replaces VGA. Message-ID: <20190331121944.s67z7seyrgl5xnrw@debian> References: <20190316222504.27170-1-tomli@tomli.me> <20190316222504.27170-5-tomli@tomli.me> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190316222504.27170-5-tomli@tomli.me> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 17, 2019 at 06:25:00AM +0800, Yifeng Li wrote: > When the machine is booted in VGA mode, loading sm712fb would cause > a glitch of random pixels shown on the screen. To prevent it from > happening, we first clear the entire framebuffer, and we also need > to stop calling smtcfb_setmode() during initialization, the fbdev > layer will call it for us later when it's ready. > > Signed-off-by: Yifeng Li > Cc: stable@vger.kernel.org # v4.4+ Tested-by: Sudip Mukherjee -- Regards Sudip