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=-11.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY autolearn=unavailable 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 5EE74C636CA for ; Thu, 15 Jul 2021 19:08:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D9D1613F3 for ; Thu, 15 Jul 2021 19:08:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243220AbhGOTLc (ORCPT ); Thu, 15 Jul 2021 15:11:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244142AbhGOTKl (ORCPT ); Thu, 15 Jul 2021 15:10:41 -0400 Received: from mail-ot1-x333.google.com (mail-ot1-x333.google.com [IPv6:2607:f8b0:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAB9DC028BA0 for ; Thu, 15 Jul 2021 12:00:19 -0700 (PDT) Received: by mail-ot1-x333.google.com with SMTP id 75-20020a9d08510000b02904acfe6bcccaso7229252oty.12 for ; Thu, 15 Jul 2021 12:00:19 -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=9GEmaDpQMUFvZjd/2LqfDua2IjDBMZfqrvLpdIshpRE=; b=LIW3L+U+KAOFBPJFqfMwPRPpFQZwpGABowsd08a+L3VQ0P/P4WR9//YMhNJlEeQM9T m44000IsOL4B5VY7j8OHXsGyN8DgUJAxRhDHN7Gln3Q8HXVtdGz2/HXA8BJUMRgnaOjC qycJ2q3183q2w9awG3PEfoxkz+hm5Xei9zoDk= 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=9GEmaDpQMUFvZjd/2LqfDua2IjDBMZfqrvLpdIshpRE=; b=LKdGRJlQV9PMVOZtCTnoP9NYf+00gbolt4wTd8PFrQfleAd8vyHFJjdVtRTgYkoHaN Bbgoy9NBPumo4A3SfN9J5XRA/AswnwJIOifWf69L8T6ZMm9CsoJ/eLd6qWpvA6GDEl8O /s/rsuv+xW5SaTDdPhyfJecdPT/IWUf1wvDccrf8+qahjMopy3G5D9hPucpkgL05K6Lc ek1EbxGeL+P2Qzu2GVU6txRhBflkTu2R1hhQBa3E9Bk8EWNozb7aYQRrpfcDnT7wWtLQ f1XF0x0gg5IfgDRElnIBsfnhS9dlIvdWqDlUMkWE+/hpLZZ2TRbGIFbV927REd3TJ6CI 7t1g== X-Gm-Message-State: AOAM532zUoo5EVjDU1FSBRqhuXJ03lTKmfrMzxae+ght+JEZbhCVc/wY 4Na986ohJd8mg2sWjdTOkFhzSp0tAvDV1FAiQLKLIw== X-Google-Smtp-Source: ABdhPJxf21q1Ik3LU9OiVWzgN+Ii0qixpl5UQbE9oflle2O6F5lL6xJzhxgcmT9tg8sYDKVmYXEZLaWvr8DSlyGYBeY= X-Received: by 2002:a9d:650e:: with SMTP id i14mr4963674otl.233.1626375619183; Thu, 15 Jul 2021 12:00:19 -0700 (PDT) Received: from 753933720722 named unknown by gmailapi.google.com with HTTPREST; Thu, 15 Jul 2021 21:00:18 +0200 MIME-Version: 1.0 In-Reply-To: References: <1625592020-22658-1-git-send-email-khsieh@codeaurora.org> <1625592020-22658-8-git-send-email-khsieh@codeaurora.org> From: Stephen Boyd User-Agent: alot/0.9.1 Date: Thu, 15 Jul 2021 21:00:18 +0200 Message-ID: Subject: Re: [PATCH 7/7] drm/msm/dp: retrain link when loss of symbol lock detected To: khsieh@codeaurora.org Cc: dri-devel@lists.freedesktop.org, robdclark@gmail.com, sean@poorly.run, abhinavk@codeaurora.org, aravindh@codeaurora.org, airlied@linux.ie, daniel@ffwll.ch, bjorn.andersson@linaro.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Quoting khsieh@codeaurora.org (2021-07-09 10:16:52) > On 2021-07-08 00:21, Stephen Boyd wrote: > > Quoting Kuogee Hsieh (2021-07-06 10:20:20) > >> Main link symbol locked is achieved at end of link training 2. Some > >> dongle main link symbol may become unlocked again if host did not end > >> link training soon enough after completion of link training 2. Host > >> have to re train main link if loss of symbol lock detected before > >> end link training so that the coming video stream can be transmitted > >> to sink properly. > >> > >> Signed-off-by: Kuogee Hsieh > > > > I guess this is a fix for the original driver, so it should be tagged > > with Fixes appropriately. > Actually, this is fix on patch #6 : drm/msm/dp: do not end dp link > training until video is ready > Should i merge patch #6 and #7 together? > Or can you suggest what should I do? Yes if it fixes the patch before this one it should be combined.