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=-13.1 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,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 6C4F2C433DB for ; Mon, 8 Feb 2021 08:44:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D0FD64E92 for ; Mon, 8 Feb 2021 08:44:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230218AbhBHIoY (ORCPT ); Mon, 8 Feb 2021 03:44:24 -0500 Received: from mailout1.w1.samsung.com ([210.118.77.11]:51595 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230372AbhBHIlB (ORCPT ); Mon, 8 Feb 2021 03:41:01 -0500 Received: from eucas1p1.samsung.com (unknown [182.198.249.206]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20210208084015euoutp0163ffdc02b0ba7c7509dbbd23c7171958~huQ79R-FZ2318323183euoutp010 for ; Mon, 8 Feb 2021 08:40:15 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20210208084015euoutp0163ffdc02b0ba7c7509dbbd23c7171958~huQ79R-FZ2318323183euoutp010 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1612773615; bh=KNOrNrL+72nponq8j81Mwa76MDVPefX2wsyg2rqCJ3k=; h=Subject:To:Cc:From:Date:In-Reply-To:References:From; b=OzPfFMgeKTqGebk3pGIZDzUyPBmOD5j9Md0WMrpEIJS6aKALJ+3XDOdho+g0So/+H hzxDA6ObV49y6yWSCqhqKj5PEnSTkXzaXyhopL4qTM8iQi4cqDX6dIqMyEmtAz0iPr jenzLxlqE1RROIhRdQlDINIpLD+u6SVLcfzR5+HI= Received: from eusmges3new.samsung.com (unknown [203.254.199.245]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20210208084015eucas1p2a79133d1a5611ec48bf32385b99c0d4c~huQ7fykwT2617926179eucas1p2m; Mon, 8 Feb 2021 08:40:15 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges3new.samsung.com (EUCPMTA) with SMTP id 53.0B.45488.EE8F0206; Mon, 8 Feb 2021 08:40:15 +0000 (GMT) Received: from eusmtrp2.samsung.com (unknown [182.198.249.139]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20210208084014eucas1p2f462f219c6e46c6eaec2ae88c03c9507~huQ65A-6w2626126261eucas1p2M; Mon, 8 Feb 2021 08:40:14 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp2.samsung.com (KnoxPortal) with ESMTP id 20210208084014eusmtrp29991457435cf7013f14c44f4b49aab41~huQ63_fnl0368203682eusmtrp2Q; Mon, 8 Feb 2021 08:40:14 +0000 (GMT) X-AuditID: cbfec7f5-c77ff7000000b1b0-eb-6020f8eef31b Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 15.36.21957.EE8F0206; Mon, 8 Feb 2021 08:40:14 +0000 (GMT) Received: from [106.210.134.192] (unknown [106.210.134.192]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20210208084013eusmtip2d038ff27818d7ead02c16b59f934df21~huQ5xo5Ko3214432144eusmtip20; Mon, 8 Feb 2021 08:40:13 +0000 (GMT) Subject: Re: [PATCH v4 0/8] Make fw_devlink=on more forgiving To: Saravana Kannan , Jonathan Corbet , Greg Kroah-Hartman , "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson , Len Brown , Len Brown , Pavel Machek , Michael Turquette , Stephen Boyd , Rob Herring , Frank Rowand , Marc Zyngier , Thomas Gleixner Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Geert Uytterhoeven , kernel-team@android.com From: Marek Szyprowski Message-ID: <7b486072-453d-a344-bdfc-dec58a35c8f5@samsung.com> Date: Mon, 8 Feb 2021 09:40:13 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: <20210205222644.2357303-1-saravanak@google.com> Content-Transfer-Encoding: 7bit Content-Language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprCJsWRmVeSWpSXmKPExsWy7djP87rvfygkGCxtYLR4cqCd0WL+kXOs FjPf/GezeHZrL5NF8+L1bBY7totYPN38mMli1hSg0M6Hb9kslu/rZ7T42HOP1WJh2xIWi8u7 5rBZfO49wmixc85JVouLp1wt7p46ymYx98tUZovWvUfYLboO/WWz+HdtI4vF5k1AseNrwx3E Pbbt3sbq8f5GK7vHzll32T0WbCr1WLznJZPHplWdbB53ru1h83h37hy7x6HDHYwe++euYfdY 3DeZ1WPF6u/sHp83yQXwRnHZpKTmZJalFunbJXBlLG7+xFJwk7Pi8rqjjA2MT9i7GDk5JARM JBad28rUxcjFISSwglHiycFF7BDOF0aJ7tULmCGcz4wSD37+ZINpOdH1lREisZxRYs7Jq1At Hxkl+k83MoNUCQvYSjSdXgLWLiKwhUVi4641YFuYBT4Bzer+xgpSxSZgKNH1tgtoLgcHr4Cd xLYVUSBhFgEVibW/pzGC2KICSRLLb/5hArF5BQQlTs58wgJicwrYSBx+8g5sGbOAvMT2t3Og bHGJW0/mg+2SEOjikrhypo8F4m4Xie+7DkLZwhKvjm+BBoGMxP+dMA3NjBIPz61lh3B6GCUu N81ghKiylrhz7hfYpcwCmhLrd+lDhB0lvvZOYQYJSwjwSdx4KwhxBJ/EpG3TocK8Eh1tQhDV ahKzjq+DW3vwwiXmCYxKs5C8NgvJO7OQvDMLYe8CRpZVjOKppcW56anFxnmp5XrFibnFpXnp esn5uZsYgQn39L/jX3cwrnj1Ue8QIxMH4yFGCQ5mJRHewE65BCHelMTKqtSi/Pii0pzU4kOM 0hwsSuK8u7auiRcSSE8sSc1OTS1ILYLJMnFwSjUwxb3meeT1KbQ3aGPey+lt6168m+SQtHL7 DF2+RO3vJgtDFy7u6Zy+SGUXf0Msm0lmwpZ7jyaycn7yOp5kIvl9O4vjTNUY1dvcc2I07q+V 7vSwXdrG/VqtQNQsTStifcfdubeEMgv6Z+35Vt+afdWi1nPZU+Hbmt5LNkd+tZ/X/HXiKo7g 98/enOM6otK4q/zgboMzx/c3mbCkSew8/onX5fy6L1fqjvyR/Ht0jf/iT5LPHC3mXw9eb3JB tMxjrkOuxwGVzVtL3nBHLM16O//rJSe7kny5K9Z5gWkR33KK1xYWqM1lYgp1feqceiPC9SGX o+B+qR+t3ukGuqurfT70micfPLtI/3DJV4l3cx4GK7EUZyQaajEXFScCABW41o0nBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrGKsWRmVeSWpSXmKPExsVy+t/xe7rvfigkGMxaL2zx5EA7o8X8I+dY LWa++c9m8ezWXiaL5sXr2Sx2bBexeLr5MZPFrClAoZ0P37JZLN/Xz2jxseceq8XCtiUsFpd3 zWGz+Nx7hNFi55yTrBYXT7la3D11lM1i7pepzBate4+wW3Qd+stm8e/aRhaLzZuAYsfXhjuI e2zbvY3V4/2NVnaPnbPusnss2FTqsXjPSyaPTas62TzuXNvD5vHu3Dl2j0OHOxg99s9dw+6x uG8yq8eK1d/ZPT5vkgvgjdKzKcovLUlVyMgvLrFVija0MNIztLTQMzKx1DM0No+1MjJV0rez SUnNySxLLdK3S9DLWNz8iaXgJmfF5XVHGRsYn7B3MXJySAiYSJzo+srYxcjFISSwlFFi+/om FoiEjMTJaQ2sELawxJ9rXWwQRe8ZJRbens4GkhAWsJVoOr2EGSQhIrCNRWLylW0sIA6zwCdG iWW7ITJCAv2MEneOzQObxSZgKNH1FmQWBwevgJ3EthVRIGEWARWJtb+nMYLYogJJEo9v3WcC sXkFBCVOznwCdhKngI3E4SfvmEFsZgEziXmbH0LZ8hLb386BssUlbj2ZzzSBUWgWkvZZSFpm IWmZhaRlASPLKkaR1NLi3PTcYkO94sTc4tK8dL3k/NxNjMAEs+3Yz807GOe9+qh3iJGJg/EQ owQHs5IIb2CnXIIQb0piZVVqUX58UWlOavEhRlOgfyYyS4km5wNTXF5JvKGZgamhiZmlgaml mbGSOO/WuWvihQTSE0tSs1NTC1KLYPqYODilGpg4aq5ncM+YvSbIvNmA+W7ROnfPD1tkfmhe FZVbXN7r+aG1vE/Walt21EWRvNdbH0w70S30UFhq/7OAK4vnPy3ravO2POSq+b7LPObRkg/y acd//9zj/3ySyKkrNTdTw+SXuUifm7pqkZ6BlN/qtqCbx51dUqzdPiz86zvdwlSBqazLWv3V 9uOmRx8ybErReHX2jgOPTvmlXXsyTm1S+mx+6/yGSxONP1ssDlx57PCv58WZFlsuJ1quezrl 6e7j13c1eE/c5LH8RZuRZrxC6Zp38Uk3IkP3LF+xLZk7z7mab04Iq1vWC9WyfcYdNmc02B+p PsrVavdSZ0vZsPbV4v1+B+ff3xDxz7jrderN91dWK7EUZyQaajEXFScCANPuL3K5AwAA X-CMS-MailID: 20210208084014eucas1p2f462f219c6e46c6eaec2ae88c03c9507 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20210205222651eucas1p28ef87073dea33c1c5224c14aa203bec5 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20210205222651eucas1p28ef87073dea33c1c5224c14aa203bec5 References: <20210205222644.2357303-1-saravanak@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Hi Saravana, On 05.02.2021 23:26, Saravana Kannan wrote: > There are a lot of devices/drivers where they never have a struct device > created for them or the driver initializes the hardware without ever > binding to the struct device. > > This series is intended to avoid any boot regressions due to such > devices/drivers when fw_devlink=on and also address the handling of > optional suppliers. > > Patch 1 and 2 addresses the issue of firmware nodes that look like > they'll have struct devices created for them, but will never actually > have struct devices added for them. For example, DT nodes with a > compatible property that don't have devices added for them. > > Patch 3 and 4 allow for handling optional DT bindings. > > Patch 5 sets up a generic API to handle drivers that never bind with > their devices. > > Patch 6 through 8 update different frameworks to use the new API. This patchset fixes probing issue observed on various Exynos based boards even with commit c09a3e6c97f0 ("soc: samsung: pm_domains: Convert to regular platform driver") reverted. Thanks! Tested-by: Marek Szyprowski Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland