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 705F5C433EF for ; Tue, 5 Oct 2021 22:36:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A01960EE3 for ; Tue, 5 Oct 2021 22:36:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231658AbhJEWig (ORCPT ); Tue, 5 Oct 2021 18:38:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231304AbhJEWif (ORCPT ); Tue, 5 Oct 2021 18:38:35 -0400 Received: from mail-ot1-x32b.google.com (mail-ot1-x32b.google.com [IPv6:2607:f8b0:4864:20::32b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD50EC06174E for ; Tue, 5 Oct 2021 15:36:44 -0700 (PDT) Received: by mail-ot1-x32b.google.com with SMTP id g62-20020a9d2dc4000000b0054752cfbc59so886333otb.1 for ; Tue, 05 Oct 2021 15:36:44 -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=Ft48Hk1n68Pbbbv8PEM8uaK94jbB+3DvpTmrUODshWs=; b=fuO8D1HZqE0QRC5GpyS800L44yJkv8eq3KoFfIz9YbzMy8gLkKwMt3ak48h8SgP/6a MQeVZSrXVzFGIZXzKkPlnHuvR/smgI79Gp9ry26Wtn83BDr+9N+s5hf0vtcSiqIJXkCr dCVLzMRfCGWeT4zL/RhFyyGcPZALadT1LfwAs= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:in-reply-to:references:from :user-agent:date:message-id:subject:to:cc; bh=Ft48Hk1n68Pbbbv8PEM8uaK94jbB+3DvpTmrUODshWs=; b=KulWE2kBw61WfkqH6qCYEMpL6DtN1xwllKKYb+FIzXy4OwGCwPElOiR9WFdJusNP6f y4xfQRqgmObJlLUvxTQ6WecjV6WJ+BIJP0qwmWndoUyk/NqnjB5tDIsJKKr1v+PJj0yc fNM5pVsP+j32YaUUEGkIyH5WFjQaGQLSj/kxHt/1BL0p0s1U/k26dy7NaYnK021sZpcI w+lw/JBeRKRxzVWEIlZiN+XCPdZHGGkDEQ3N5glQdUPVemot0etfZ1Lxrt0xzUpRZOc3 lymo5iIfz9qVNuqNMu0YzXVFqmvcOnHTkMavsd6uAM9D7LVqiE2vsFBIBRqRyQdPgzqV O6xA== X-Gm-Message-State: AOAM533/T6FlXmlsWoeqKYCWTy1oYrG4HSF1FCsZ81ZwHYp3HRYJShPv L2ymCRkQR2EaTa4WsRGmOTKFNLZ1GgTXt8MQCI9uZg== X-Google-Smtp-Source: ABdhPJwXTb3iHipqtroSzM7KoB3GtcUPf2KB8S66ztGQmawIKW5iKloHtwS37bzAg5v7wipOcEhtT5hf+0xu3KA/PDA= X-Received: by 2002:a9d:6a0f:: with SMTP id g15mr17124450otn.126.1633473404179; Tue, 05 Oct 2021 15:36:44 -0700 (PDT) Received: from 753933720722 named unknown by gmailapi.google.com with HTTPREST; Tue, 5 Oct 2021 15:36:43 -0700 MIME-Version: 1.0 In-Reply-To: References: <20211005023750.2037631-1-bjorn.andersson@linaro.org> From: Stephen Boyd User-Agent: alot/0.9.1 Date: Tue, 5 Oct 2021 15:36:43 -0700 Message-ID: Subject: Re: [PATCH] drm/msm/dp: Shorten SETUP timeout To: Bjorn Andersson 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 Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Quoting Bjorn Andersson (2021-10-05 14:40:38) > 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. > Sure. Fixes tag != backported to stable trees but it is close. > > Reviewed-by: Stephen Boyd >