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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55674C433F5 for ; Tue, 5 Oct 2021 21:39:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3028F6126A for ; Tue, 5 Oct 2021 21:39:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236655AbhJEVkx (ORCPT ); Tue, 5 Oct 2021 17:40:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236382AbhJEVkr (ORCPT ); Tue, 5 Oct 2021 17:40:47 -0400 Received: from mail-ot1-x32f.google.com (mail-ot1-x32f.google.com [IPv6:2607:f8b0:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06775C06174E for ; Tue, 5 Oct 2021 14:38:57 -0700 (PDT) Received: by mail-ot1-x32f.google.com with SMTP id c26-20020a056830349a00b0054d96d25c1eso613565otu.9 for ; Tue, 05 Oct 2021 14:38:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=XwBxFBF/Wz7qJo21AO0Spsmb8Z2fz8+ghFhMq6YjQTU=; b=WQ8XmZxsPfbZllzokRO7+Jjx/nD/hJboaXKtbethxbp3yID6yrPSP1lSPe2WQPhrn5 aeG5uWM9yj3v7XY1gQVk6l3rK/YsaGZIADln28Ae7thnLpJf9Ee1SIDTiQdmshxmsX20 nRwZfEheKCBrFroqZt1ZFnHViTUarBBJrk/mHHGt9sZpCdy06NetQ5pQv86QuaHuLGOf keRle//NDqbe2CoGUEJb57LfABJe3RsjgPaU2tIFKthI80mE0XR+6OrW4NKZuCu0ZZnP EnhGft/J5pAEvxsRah9fc9NjZjBOlRsX8VYzyOnNtTbHbBtod0DGP66L9iPCddng66Ge zmFg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=XwBxFBF/Wz7qJo21AO0Spsmb8Z2fz8+ghFhMq6YjQTU=; b=NyU0itcFpS9IS2uUk/iRAIByvwpbPHSBD74x1KO3nDCJiMwYOHvKZm6kIJFP5WzDPx 4dnfp5ftMRMsJ+wyAL8P1DFS9yXE+gTF5ezPqTuorIfDnBlV3v7p/0XzEXhaW42bL6BV LPWQqDY5Rd9Rek0i5yf69/qiRug6k70Uhlo5XkMLGLuED5r0W9u8TW4C/qpUmwxAcX7e mGlKBf2cxT3vtkDbwiRdY6ITbfOc+1lFUyGbdetYzHD6eonXaVPEVk46PkFqP9pOqWSe Cx/u9/Qdden7Q4fzZgMt1qhQLjdUnE1D9EgCbcFYlxzEW60t92ZtvfyXoNnbiPiMZt4l wEuA== X-Gm-Message-State: AOAM533It+G4dj2xUHCPlBxMJcY/Bo8L0Lp7Smxydpp+3KLSQXIOt9Ue IrjSeJCagjx7fa06JGLfU2WpNWWHBWR4VA== X-Google-Smtp-Source: ABdhPJxZU82kUOM2pe8hCHCAjxEF1gNb5QXbBnbhthExkr2zHei0ZXp/UlrjxB3s9dJBtIBvaocs5w== X-Received: by 2002:a05:6830:812:: with SMTP id r18mr16200467ots.282.1633469936358; Tue, 05 Oct 2021 14:38:56 -0700 (PDT) Received: from ripper ([2600:1700:a0:3dc8:205:1bff:fec0:b9b3]) by smtp.gmail.com with ESMTPSA id z24sm3514610oic.26.2021.10.05.14.38.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Oct 2021 14:38:55 -0700 (PDT) Date: Tue, 5 Oct 2021 14:40:38 -0700 From: Bjorn Andersson To: Stephen Boyd Cc: Abhinav Kumar , Daniel Vetter , David Airlie , Dmitry Baryshkov , Kuogee Hsieh , Rob Clark , Sean Paul , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Sankeerth Billakanti Subject: Re: [PATCH] drm/msm/dp: Shorten SETUP timeout Message-ID: References: <20211005023750.2037631-1-bjorn.andersson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 05 Oct 11:45 PDT 2021, Stephen Boyd wrote: > Quoting Bjorn Andersson (2021-10-04 19:37:50) > > Found in the middle of a patch from Sankeerth was the reduction of the > > INIT_SETUP timeout from 10s to 100ms. Upon INIT_SETUP timeout the host > > is initalized and HPD interrupt start to be serviced, so in the case of > > eDP this reduction improves the user experience dramatically - i.e. > > removes 9.9s of bland screen time at boot. > > > > Suggested-by: Sankeerth Billakanti > > Signed-off-by: Bjorn Andersson > > --- > > Any Fixes tag? BTW, the delay design is pretty convoluted. I had to go > re-read the code a couple times to understand that it's waiting 100ms > times the 'delay' number. Whaaaaat? > I assume you're happy with the current 10s delay on the current devices, so I don't think we should push for this to be backported. I have no need for it to be backported on my side at least. > Reviewed-by: Stephen Boyd Thanks, Bjorn