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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=ham 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 1C5FBC04AB3 for ; Wed, 29 May 2019 06:23:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E35E821721 for ; Wed, 29 May 2019 06:23:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="oqk/J0AF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725903AbfE2GXc (ORCPT ); Wed, 29 May 2019 02:23:32 -0400 Received: from mail-lj1-f196.google.com ([209.85.208.196]:35580 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726120AbfE2GXb (ORCPT ); Wed, 29 May 2019 02:23:31 -0400 Received: by mail-lj1-f196.google.com with SMTP id h11so1243809ljb.2 for ; Tue, 28 May 2019 23:23:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Y1SBl/NhErMiMqrSROQABj44p6n5fylOaEGm2rxHFac=; b=oqk/J0AF4QeADPOdicRdeDUwsHkDSXWjWx8dSgJe6kYqicSzaWT6We5F12PmUwMZ65 LMtry+PPgl9aZ+ehVfQ3aYUPdsUA+0G/0MxVYzVP3GQ7nbyVaWAFtqS14q9Cz/sXTVWw WStWmxJlYuL0EZHA9ZLPC+k+8DEk47jsreW/64yj3ouY/mC8ANmDOehvx6T5ccr5eMGf 1WHWfK+w0dKIuRVlMUYtK5EJTnE70DhNt1doisAzvDA3kA4nYYZdqKIMaavmi3/4P3dM OFEXNXqpmonqPRobjHOdNVf7Lw0XFzgEPkX3HUfI1XRrIa4g+PCInqe2zu8U3pN8pT/h jBAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Y1SBl/NhErMiMqrSROQABj44p6n5fylOaEGm2rxHFac=; b=UZ7vKAyIA1tQcFAlM1uzk/1eFYxLcP1QXYzB2BiD2R4ytVEa7lEauBvI7h6FNcrT0S oxN6aHB58fiHnfiohVVgObFjLrE2YET8B1gmn9BnGm9H1At/6iQHkt0wJvl++8+QCvjP h1O8M/ncGd3ZcQqaydUO4ho6pbpQtGjMeOXcK1cAd363tE2kxLEuuG/l1vhgJ2gsezcj lUaiuL49PCTtkdPurAVgpaxIkBTQ8BmMRm1MYEOEOtj4bO/oofITuyixN12bSfLYmmLL Az1WWXj+5PXBHVit9Ki/aZVHLBJMYFUg+GTH36aPlpAOCJB9kQ8iHhAfVHbrhEK4O4Ct Mn7w== X-Gm-Message-State: APjAAAWxY/luGd/s+J+7e0TDmMkORNbYdEbVfZAQfKBYfcyzPO3+wnbG SVVD+QjDu3Sg6dvYqWJuoA2TJ8F9YDBQy+0qrru5uQ== X-Google-Smtp-Source: APXvYqwIsl1wSDxK9EPcOc6HNZDGzaYIXxohtHwHpz4z0RvbNyq1y2+YZmevdVoB7By354baiJgjeTvrt9wKyS/5rzA= X-Received: by 2002:a2e:8997:: with SMTP id c23mr1321995lji.94.1559111009909; Tue, 28 May 2019 23:23:29 -0700 (PDT) MIME-Version: 1.0 References: <20190509020352.14282-1-masneyb@onstation.org> <20190529011705.GA12977@basecamp> In-Reply-To: <20190529011705.GA12977@basecamp> From: Linus Walleij Date: Wed, 29 May 2019 08:23:17 +0200 Message-ID: Subject: Re: [PATCH RFC v2 0/6] ARM: qcom: initial Nexus 5 display support To: Brian Masney Cc: Rob Clark , Sean Paul , "open list:DRM PANEL DRIVERS" , MSM , freedreno@lists.freedesktop.org, Dave Airlie , Daniel Vetter , "linux-kernel@vger.kernel.org" , Jonathan Marek , Rob Herring Content-Type: text/plain; charset="UTF-8" Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Wed, May 29, 2019 at 3:17 AM Brian Masney wrote: > It's in low speed mode but its usable. How low speed is that? > I assume that it's related to the > vblank events not working properly? They are only waiting for 50 ms before timing out, I raised it to 100ms in the -next kernel. I'm still suspicious about this even though I think you said this was not the problem. For a command mode panel in LP mode it will nevertheless be more than 100ms for sure, the update is visible to the naked eye. Raise it to 10000 ms or something and see what happens. drivers/gpu/drm/drm_atomic_helper.c: msecs_to_jiffies(50) Yours, Linus Walleij