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{
    "id": 1499420,
    "url": "http://patchwork.ozlabs.org/api/covers/1499420/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/linux-pwm/cover/20210701072927.328254-1-u.kleine-koenig@pengutronix.de/",
    "project": {
        "id": 38,
        "url": "http://patchwork.ozlabs.org/api/projects/38/?format=api",
        "name": "Linux PWM development",
        "link_name": "linux-pwm",
        "list_id": "linux-pwm.vger.kernel.org",
        "list_email": "linux-pwm@vger.kernel.org",
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    "msgid": "<20210701072927.328254-1-u.kleine-koenig@pengutronix.de>",
    "list_archive_url": null,
    "date": "2021-07-01T07:29:24",
    "name": "[0/3] pwm: Some improvements for legacy drivers",
    "submitter": {
        "id": 1476,
        "url": "http://patchwork.ozlabs.org/api/people/1476/?format=api",
        "name": "Uwe Kleine-König",
        "email": "u.kleine-koenig@pengutronix.de"
    },
    "mbox": "http://patchwork.ozlabs.org/project/linux-pwm/cover/20210701072927.328254-1-u.kleine-koenig@pengutronix.de/mbox/",
    "series": [
        {
            "id": 251456,
            "url": "http://patchwork.ozlabs.org/api/series/251456/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/linux-pwm/list/?series=251456",
            "date": "2021-07-01T07:29:25",
            "name": "pwm: Some improvements for legacy drivers",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/251456/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/covers/1499420/comments/",
    "headers": {
        "Return-Path": "<linux-pwm-owner@vger.kernel.org>",
        "X-Original-To": "incoming@patchwork.ozlabs.org",
        "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org",
        "Authentication-Results": "ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=23.128.96.18; helo=vger.kernel.org;\n envelope-from=linux-pwm-owner@vger.kernel.org; receiver=<UNKNOWN>)",
        "Received": [
            "from vger.kernel.org (vger.kernel.org [23.128.96.18])\n\tby ozlabs.org (Postfix) with ESMTP id 4GFqbh1twsz9sWw\n\tfor <incoming@patchwork.ozlabs.org>; Thu,  1 Jul 2021 17:29:36 +1000 (AEST)",
            "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n        id S229906AbhGAHcE (ORCPT <rfc822;incoming@patchwork.ozlabs.org>);\n        Thu, 1 Jul 2021 03:32:04 -0400",
            "from lindbergh.monkeyblade.net ([23.128.96.19]:52744 \"EHLO\n        lindbergh.monkeyblade.net\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n        with ESMTP id S234733AbhGAHcE (ORCPT\n        <rfc822;linux-pwm@vger.kernel.org>); Thu, 1 Jul 2021 03:32:04 -0400",
            "from metis.ext.pengutronix.de (metis.ext.pengutronix.de\n [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33])\n        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2157DC0617A8\n        for <linux-pwm@vger.kernel.org>; Thu,  1 Jul 2021 00:29:33 -0700 (PDT)",
            "from ptx.hi.pengutronix.de ([2001:67c:670:100:1d::c0])\n        by metis.ext.pengutronix.de with esmtps\n (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256)\n        (Exim 4.92)\n        (envelope-from <ukl@pengutronix.de>)\n        id 1lyr8c-00038x-Ot; Thu, 01 Jul 2021 09:29:30 +0200",
            "from ukl by ptx.hi.pengutronix.de with local (Exim 4.92)\n        (envelope-from <ukl@pengutronix.de>)\n        id 1lyr8b-0006xy-Ht; Thu, 01 Jul 2021 09:29:29 +0200"
        ],
        "From": "=?utf-8?q?Uwe_Kleine-K=C3=B6nig?=  <u.kleine-koenig@pengutronix.de>",
        "To": "Thierry Reding <thierry.reding@gmail.com>,\n        Lee Jones <lee.jones@linaro.org>",
        "Cc": "linux-pwm@vger.kernel.org, kernel@pengutronix.de,\n        Geert Uytterhoeven <geert@linux-m68k.org>",
        "Subject": "[PATCH 0/3] pwm: Some improvements for legacy drivers",
        "Date": "Thu,  1 Jul 2021 09:29:24 +0200",
        "Message-Id": "<20210701072927.328254-1-u.kleine-koenig@pengutronix.de>",
        "X-Mailer": "git-send-email 2.30.2",
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        "X-SA-Exim-Connect-IP": "2001:67c:670:100:1d::c0",
        "X-SA-Exim-Mail-From": "ukl@pengutronix.de",
        "X-SA-Exim-Scanned": "No (on metis.ext.pengutronix.de);\n SAEximRunCond expanded to false",
        "X-PTX-Original-Recipient": "linux-pwm@vger.kernel.org",
        "Precedence": "bulk",
        "List-ID": "<linux-pwm.vger.kernel.org>",
        "X-Mailing-List": "linux-pwm@vger.kernel.org"
    },
    "content": "Hello,\n\nthis is the successor of my earlier patch \"pwm: Ensure for legacy\ndrivers that pwm->state stays consistent\" that was applied shortly to\nnext until Geert found a problem with it.\n\nI split the patch in three parts now: First the legacy handling is just\nmoved to a separate function without any semantic change. Then a glitch\nis fixed, but without the regression I introduced initially. In the\nthird and last patch the longstanding FIXME about breaking pwm->state if\na callback fails is addressed.\n\nUwe Kleine-König (3):\n  pwm: Move legacy driver handling into a dedicated function\n  pwm: Prevent a glitch for legacy drivers\n  pwm: Restore initial state if a legacy callback fails\n\n drivers/pwm/core.c | 139 ++++++++++++++++++++++++++-------------------\n 1 file changed, 79 insertions(+), 60 deletions(-)\n\n\nbase-commit: 6efb943b8616ec53a5e444193dccf1af9ad627b5"
}