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=-8.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED 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 91E83C4338F for ; Thu, 22 Jul 2021 19:15:52 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5D6B760EB6 for ; Thu, 22 Jul 2021 19:15:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5D6B760EB6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BD8C16E7D0; Thu, 22 Jul 2021 19:15:51 +0000 (UTC) Received: from mail-ot1-x333.google.com (mail-ot1-x333.google.com [IPv6:2607:f8b0:4864:20::333]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0F3DE6E84F for ; Thu, 22 Jul 2021 19:15:51 +0000 (UTC) Received: by mail-ot1-x333.google.com with SMTP id 31-20020a9d0ea20000b02904d360fbc71bso3573697otj.10 for ; Thu, 22 Jul 2021 12:15:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:in-reply-to:references:from:user-agent:date:message-id :subject:to:cc; bh=EusEYbQ13bFWsLQf0HYpb/wdiNyPX9L+F2ViR+RO33Y=; b=D+iysSmfAuVRkVd1YCYohemSgnbS7Iy5ZzkvKR3YyklHA+zasDTCgz+zlrYctzR1wL XdFzJdjD60jMBjjnHX03lBmHM5x+f8uWfK8s2/CYBx5lCppC463LwBRMfxza0K3f/wWy UfdzO0P+5ciJiKjBzO/O61wwUDVvT2F8Pd+xc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from :user-agent:date:message-id:subject:to:cc; bh=EusEYbQ13bFWsLQf0HYpb/wdiNyPX9L+F2ViR+RO33Y=; b=V+0i3ydD2DpQkdEhGjgt/4KVV0WxwZ88eYPETsSLAV7vtl869GYRkpBCvtcQOTEDmm oVLmED3zUUnPg8dv/CqTfCSB8q0W5xBvw1s9zupeIwCJiO7Q11FTsavhT1Y/PjLKjZna 2rcGn+NYL3y1mupe/cPHq3TzKzKeewkbV87du1W0sS/XAoADrrBV5JL/rUQ0aTaTF5yX VEwOtw3wNJJa12Cv90ldELaAHcLUEnje1z+czanozpubRP1+SiMtDAMVo6/MaBzgq3tr 4fYqO30JZR5eski4c93Kl4OLER+RK7snzRw7twLqfG4NGn4rRDDGiSky/tTBFBg7dLq0 GsxA== X-Gm-Message-State: AOAM531iC6ua3p8S1rx+9PPOU+uFlwgl/scNpV+Ql3jBVvspnl06S1g+ c/irm4dVLyIkPk44WR60/VnFDqnbleoutLGsMSg3yQ== X-Google-Smtp-Source: ABdhPJxZi6ghcXO9BFFOzhyS7XDAHh9cxgA1qHQYoljh9jZDXj31sg2BDKAeSnxi1yD6Oc1FE7A9cj0f1/F2ivB0p2U= X-Received: by 2002:a9d:650e:: with SMTP id i14mr859418otl.233.1626981350381; Thu, 22 Jul 2021 12:15:50 -0700 (PDT) Received: from 753933720722 named unknown by gmailapi.google.com with HTTPREST; Thu, 22 Jul 2021 19:15:50 +0000 MIME-Version: 1.0 In-Reply-To: <1626191647-13901-7-git-send-email-khsieh@codeaurora.org> References: <1626191647-13901-1-git-send-email-khsieh@codeaurora.org> <1626191647-13901-7-git-send-email-khsieh@codeaurora.org> From: Stephen Boyd User-Agent: alot/0.9.1 Date: Thu, 22 Jul 2021 19:15:49 +0000 Message-ID: Subject: Re: [PATCH v2 6/7] drm/msm/dp: do not end dp link training until video is ready To: Kuogee Hsieh , dri-devel@lists.freedesktop.org, robdclark@gmail.com, sean@poorly.run Content-Type: text/plain; charset="UTF-8" X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: airlied@linux.ie, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, abhinavk@codeaurora.org, bjorn.andersson@linaro.org, aravindh@codeaurora.org, freedreno@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Quoting Kuogee Hsieh (2021-07-13 08:54:06) > Initialize both pre-emphasis and voltage swing level to 0 before > start link training and do not end link training until video is > ready to reduce the period between end of link training and video > start to meet Link Layer CTS requirement. This fixes Link Layer > CTS cases 4.3.2.1, 4.3.2.2, 4.3.2.3 and 4.3.2.4. > > Signed-off-by: Kuogee Hsieh > --- Any fixes tag? Reviewed-by: Stephen Boyd