From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: Re: [PATCH v7 4/4] gpiolib: Implement fast processing path in get/set array Date: Thu, 20 Sep 2018 08:49:04 -0700 Message-ID: References: <20180831225616.29221-1-jmkrzyszt@gmail.com> <20180902120144.6855-1-jmkrzyszt@gmail.com> <20180902120144.6855-5-jmkrzyszt@gmail.com> <20180920101151eucas1p221f5a1715b8556bb9d99bf08fe09ce6f~WE-_cEf4l0754207542eucas1p27@eucas1p2.samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20180920101151eucas1p221f5a1715b8556bb9d99bf08fe09ce6f~WE-_cEf4l0754207542eucas1p27@eucas1p2.samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: Marek Szyprowski Cc: Janusz Krzysztofik , Jonathan Corbet , Miguel Ojeda Sandonis , Peter Korsgaard , Peter Rosin , Ulf Hansson , Andrew Lunn , Florian Fainelli , "David S. Miller" , Dominik Brodowski , Greg KH , kishon@ti.com, Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Hartmut Knaack , Peter Meerwald , Jiri Slaby , Willy Tarreau , Geert Uytterhoeven List-Id: linux-gpio@vger.kernel.org On Thu, Sep 20, 2018 at 3:11 AM Marek Szyprowski wrote: > I've just noticed that this patch landed in today's linux-next. Sadly it > breaks booting of Exynos5250-based Samsung Snow Chromebook (ARM 32bit, > device-tree source arch/arm/boot/dts/exynos5250-snow.dts). Thanks for testing on this platform! > Booting hangs after detecting MMC cards. Reverting this patch fixes the > boot. I will try later to add some debugs and investigate it further what > really happens when booting hangs. How typical. I hope we can fix it, because this should mean speedups for your platform. Yours, Linus Walleij 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=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, 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 9A856C433F4 for ; Thu, 20 Sep 2018 15:49:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3B9722152A for ; Thu, 20 Sep 2018 15:49:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linaro.org header.i=@linaro.org header.b="XBkkj9kB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B9722152A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387690AbeITVdY (ORCPT ); Thu, 20 Sep 2018 17:33:24 -0400 Received: from mail-io1-f66.google.com ([209.85.166.66]:38635 "EHLO mail-io1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730758AbeITVdX (ORCPT ); Thu, 20 Sep 2018 17:33:23 -0400 Received: by mail-io1-f66.google.com with SMTP id y3-v6so7803640ioc.5 for ; Thu, 20 Sep 2018 08:49:17 -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=VLScAZUucBAJe+mPRClQyep3NXXhLY9Un4hpVlWMTcw=; b=XBkkj9kBjoOnzbKxWGlCcJxWOJb4hf8ElWm4LesYUz/DY7HFm+tN6iEjR0Q3Z1d1gW O0phjGfbiaWoaGkFJxpzkwEeApCU2wUOwDAJI0Yui1vyCFG/S0HIURdA4dM5M4pjbK9o 7krIPrNoRFHXnc6VGwZix9/d6X9SEEnEDdSZ8= 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=VLScAZUucBAJe+mPRClQyep3NXXhLY9Un4hpVlWMTcw=; b=CCxJxqZxnPPDwpjQe2BVQpw+TPDSi2xq8Lnl9F1rN97nj2Hpl1TnX9Yd+m+w4GRqPK qG4D5aXKJcY7GCc4GY1py8YSpx/YJ0XCrcLSkEM4Mlf0s8AiCXEmrrsrE1qJEPQL3UKs 5JAWUpYdis/Sp3nABLGrdleSdKVhLlZkUXc4Qy25gpm/ixTPcK0sBOPNUbFU+bmJLeUn AR7aX/TOElzhSLW4mCkKcwfEhaa5DmE1I1XmgxczqiaOA2lfDFm4hTxges6D1sEq0UP9 sDuwjzzoWozbk3hHUMYbmwzVSymWUNloze8bfkEIZv0WUYkpCZnDLLhB9LIYtbcReMLK s1GQ== X-Gm-Message-State: APzg51AQu40uiEZWZrCpasoe0KEyQw2bwwhimDJURHxlbVjsrzqxenUo anopPqppkWHz8vQGLRim+T3GCCrEofgZXcNfL6vDKg== X-Google-Smtp-Source: ANB0VdYTDgdY1RsiUxiB4yUyidfGZoUl0IzQb/REjA1hoRBXyj3X1XtiDKua4QPJ1dyuHn/nQcOoAAbWn7nFOM/ZVyc= X-Received: by 2002:a6b:c3c4:: with SMTP id t187-v6mr33165533iof.304.1537458557495; Thu, 20 Sep 2018 08:49:17 -0700 (PDT) MIME-Version: 1.0 References: <20180831225616.29221-1-jmkrzyszt@gmail.com> <20180902120144.6855-1-jmkrzyszt@gmail.com> <20180902120144.6855-5-jmkrzyszt@gmail.com> <20180920101151eucas1p221f5a1715b8556bb9d99bf08fe09ce6f~WE-_cEf4l0754207542eucas1p27@eucas1p2.samsung.com> In-Reply-To: <20180920101151eucas1p221f5a1715b8556bb9d99bf08fe09ce6f~WE-_cEf4l0754207542eucas1p27@eucas1p2.samsung.com> From: Linus Walleij Date: Thu, 20 Sep 2018 08:49:04 -0700 Message-ID: Subject: Re: [PATCH v7 4/4] gpiolib: Implement fast processing path in get/set array To: Marek Szyprowski Cc: Janusz Krzysztofik , Jonathan Corbet , Miguel Ojeda Sandonis , Peter Korsgaard , Peter Rosin , Ulf Hansson , Andrew Lunn , Florian Fainelli , "David S. Miller" , Dominik Brodowski , Greg KH , kishon@ti.com, Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Hartmut Knaack , Peter Meerwald , Jiri Slaby , Willy Tarreau , Geert Uytterhoeven , linux-doc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-mmc , netdev , linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-serial@vger.kernel.org, "open list:GPIO SUBSYSTEM" , "linux-kernel@vger.kernel.org" , Sebastien Bourdelin , Lukas Wunner , Rojhalat Ibrahim , Russell King , ext Tony Lindgren , Yegor Yefremov , =?UTF-8?Q?Uwe_Kleine=2DK=C3=B6nig?= , linux-samsung-soc , Krzysztof Kozlowski Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 20, 2018 at 3:11 AM Marek Szyprowski wrote: > I've just noticed that this patch landed in today's linux-next. Sadly it > breaks booting of Exynos5250-based Samsung Snow Chromebook (ARM 32bit, > device-tree source arch/arm/boot/dts/exynos5250-snow.dts). Thanks for testing on this platform! > Booting hangs after detecting MMC cards. Reverting this patch fixes the > boot. I will try later to add some debugs and investigate it further what > really happens when booting hangs. How typical. I hope we can fix it, because this should mean speedups for your platform. Yours, Linus Walleij From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: Re: [PATCH v7 4/4] gpiolib: Implement fast processing path in get/set array Date: Thu, 20 Sep 2018 08:49:04 -0700 Message-ID: References: <20180831225616.29221-1-jmkrzyszt@gmail.com> <20180902120144.6855-1-jmkrzyszt@gmail.com> <20180902120144.6855-5-jmkrzyszt@gmail.com> <20180920101151eucas1p221f5a1715b8556bb9d99bf08fe09ce6f~WE-_cEf4l0754207542eucas1p27@eucas1p2.samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Cc: Janusz Krzysztofik , Jonathan Corbet , Miguel Ojeda Sandonis , Peter Korsgaard , Peter Rosin , Ulf Hansson , Andrew Lunn , Florian Fainelli , "David S. Miller" , Dominik Brodowski , Greg KH , kishon@ti.com, Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Hartmut Knaack , Peter Meerwald , Jiri Slaby , Willy Tarreau , Geert Uytterhoeven , To: Marek Szyprowski Return-path: In-Reply-To: <20180920101151eucas1p221f5a1715b8556bb9d99bf08fe09ce6f~WE-_cEf4l0754207542eucas1p27@eucas1p2.samsung.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Thu, Sep 20, 2018 at 3:11 AM Marek Szyprowski wrote: > I've just noticed that this patch landed in today's linux-next. Sadly it > breaks booting of Exynos5250-based Samsung Snow Chromebook (ARM 32bit, > device-tree source arch/arm/boot/dts/exynos5250-snow.dts). Thanks for testing on this platform! > Booting hangs after detecting MMC cards. Reverting this patch fixes the > boot. I will try later to add some debugs and investigate it further what > really happens when booting hangs. How typical. I hope we can fix it, because this should mean speedups for your platform. Yours, Linus Walleij