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=-5.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 100AEC388F7 for ; Sat, 7 Nov 2020 12:31:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B8940206A4 for ; Sat, 7 Nov 2020 12:31:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="iEzUlor+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727934AbgKGMbS (ORCPT ); Sat, 7 Nov 2020 07:31:18 -0500 Received: from mout.gmx.net ([212.227.15.18]:46909 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727908AbgKGMbL (ORCPT ); Sat, 7 Nov 2020 07:31:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1604752201; bh=pRkZCmbhMlo6oUutOkRwOUttqW+rH88och2cIIsSEwA=; h=X-UI-Sender-Class:From:Subject:Cc:To:Date; b=iEzUlor+HGaRgZQs8tUfysdDB5gihYoHSJMVekZsSJOvM4WDrdRnktHj+p/7fAHt7 1oITZzMhM3B/QikalApf9fZ1bTxBD1y+OGW9ot8Neb4Qqx+XUpKj5WHyb46MtqEoQW iPuV8iRzxxhwRM7ZH2xbKoNjtmN26ihRfakz/qIU= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.com (mrgmx004 [212.227.17.184]) with ESMTPSA (Nemesis) id 1N0oFz-1kNGkn1qOz-00woFK; Sat, 07 Nov 2020 13:30:01 +0100 From: Qu Wenruo Subject: About the rockpi4 pcie controller failed to initialize problem in v5.10-rc2 Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAU4EEwEIADgCGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCXZw1oQAKCRDC PZHzoSX+qCY6CACd+mWu3okGwRKXju6bou+7VkqCaHTdyXwWFTsr+/0ly5nUdDtT3yEVggPJ 3VP70wjlrxUjNjFb6iIvGYxiPOrop1NGwGYvQktgRhaIhALG6rPoSSAhGNjwGVRw0km0PlIN D29BTj/lYEk+jVM1YL0QLgAE1AI3krihg/lp/fQT53wLhR8YZIF8ETXbClQG1vJ0cllPuEEv efKxRyiTSjB+PsozSvYWhXsPeJ+KKjFen7ebE5reQTPFzSHctCdPnoR/4jSPlnTlnEvLeqcD ZTuKfQe1gWrPeevQzgCtgBF/WjIOeJs41klnYzC3DymuQlmFubss0jShLOW8eSOOWhLRuQEN BFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcgaCbPEwhLj 1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj/IrRUUka 68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fNGSsRb+pK EKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0q1eW4Jrv 0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEvABEBAAGJ ATwEGAEIACYCGwwWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCXZw1rgUJCWpOfwAKCRDCPZHz oSX+qFcEB/95cs8cM1OQdE/GgOfCGxwgckMeWyzOR7bkAWW0lDVp2hpgJuxBW/gyfmtBnUai fnggx3EE3ev8HTysZU9q0h+TJwwJKGv6sUc8qcTGFDtavnnl+r6xDUY7A6GvXEsSoCEEynby 72byGeSovfq/4AWGNPBG1L61Exl+gbqfvbECP3ziXnob009+z9I4qXodHSYINfAkZkA523JG ap12LndJeLk3gfWNZfXEWyGnuciRGbqESkhIRav8ootsCIops/SqXm0/k+Kcl4gGUO/iD/T5 oagaDh0QtOd8RWSMwLxwn8uIhpH84Q4X1LadJ5NCgGa6xPP5qqRuiC+9gZqbq4Nj Cc: matwey@sai.msu.ru To: Linux ARM , Linux Kernel Mailing List Message-ID: Date: Sat, 7 Nov 2020 20:29:51 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="8ekXl7uxNyZASCUVheKrUCjcdJ5KiW73G" X-Provags-ID: V03:K1:oDCsND/Iy8avICZxrBQWsQISn4go98gZ5EOF2jSuzZgwMnHKbJa LGi6/yXHdGe11JJnMxmFk5AWlGrrjLEk8wmPe6SnVg7IueXfGUT0pa9XuFBGalxy4R41Sv9 wX0V4ZTjlUi8xmskoXg4B8yV8I/DlFvpYoFl2LQ1HhnaQe6kCqdwQTQ8SvDmha84PZUam54 PWpNzBcQkeeRZWtS4xlMQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:QQz1Gnchj5I=:GH9Nn9CsLtlpVTb3BC18vt 3JJRixaEdcUWz9tBmrdF935Sok75eXrFyrIIXqKkbAxkTWxCsbQ1XLYRWm3k82mWDY27LjPQa JsCqdlaACOCfTqoH1ArLUttEz6SiU9LWKaOewPOOhK5OaP47BqygB7EPk357m1SGsGWPYrATW 0BDmW7ntmtjY04gRkjRfOWJA5cdMve9vcXvSUMXhcwBahk1d2AUQq7uCRPsXIC0RBAhVcFjaf lkhg2il+H93a5i92XP9OXTDm6sFLNhU40MO4Nd6Zg7QoGbJdcRbTBVdeQkf1it7lST3qpkMfR rIxKR5DYcLbwaZehh56olNgVXeRzQqvXw5ZKctMtaKPI54gvaEax/66hodCXomk/lD5VzRqw1 +LuVD5stdsEmtSxrF3i/If+Q8AdRHM9LtA2MfoavxQezrWdNX6cNe2DGMGzr4QSKKNP8tAgXP orUGdjvXJ/8vgllfnFDWjVGJH4OgFcmb0lwlvSag6yvn84QSj4TWhkrOfxIEY8NzaYEDWTDhk q7K6kpZYmgMJp3gdIL2DSXd6eCAYXtmf1eIIV/LRPb06j/XQz8pYd8lhixcOMerQZqC+ZntUW hTz9Gw/sBnkCMZp8he/gqyHYZAQ/Mq1qcFxvwFCudXdk25yOkWni2Xxa5G/clnyLChOuqXZNK cw29fCa20+N6OYbwO8LATwJmQQyu5FE26osgzH2rA4W5O9DfWFfIFZHu9lmIlGMY5YJU3DuZ7 crtEMN3NqzIaT5RvE3LUwk1z47O/TfsfUE81xqGneFU2T6hqzLqVTQVHp76XvMAESoQrAJITe ANzSSDcUNWGEcmm/KKOlygjpcZxcnjBMir7M3JraZfdDo6fGz7Ed/ONbahJM49XbFPnYnRdoF AGzVOaZUCIthCMKZmtZQ== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --8ekXl7uxNyZASCUVheKrUCjcdJ5KiW73G Content-Type: multipart/mixed; boundary="AAzmth3wDgIEE31mMxU4oqKVOZpNQ2Jbt" --AAzmth3wDgIEE31mMxU4oqKVOZpNQ2Jbt Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable Hi guys, I see your awesome contribution to support Rock Pi 4B. However in recent rc (v5.10-rc2), I found that even with `vpcie1v8` and `vpcie0v9` added, `regulartor_dev_lookup()` now just returns -EPROBE_DEFER, preventing rockchip pcie controller to be initialized. The full callchain is: rockchip_pcie_parse_host_dt() |- rockchip>vpcie1v8 =3D devm_regulator_get_optional(dev, "vpcie1v8"); |- _regulator_get() |- regulator_dev_lookup() |- node =3D of_get_regulartor() |- if (!node) { |- r =3D of_find_regulator(); /* No @r found */ |- return ERR_PTR(-EPROBE_DEFER); This means we can't utilize PCIE controller completely. But strangely, `vpcie12v` and `vpcie3v3` both initialized without problem= =2E Any clue on how the problem could happened? I guess it's some device tree definition went crazy, but not familiar with device tree at all. Thanks, Qu --AAzmth3wDgIEE31mMxU4oqKVOZpNQ2Jbt-- --8ekXl7uxNyZASCUVheKrUCjcdJ5KiW73G Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAl+mkz8ACgkQwj2R86El /qgQgwf9GqlZh0vsyNWmyX3VUSyOCbExsneFQ7VEZWKDYCi0TUPomvyV5FzWQLcd CQXDL8M3/ts+Hy03KafVtrCw/GcNRx1x8d3GYFmrHGqL7EdC1TTMqgBlJbJhZMeN UwYOm0UprzpvvaF5l1eupSto+t1fDIP5PjM5Wd+QXVD20nW3kp0ln3NQp/muLE/s XqhbonDOY8hG99jnkWLP7SnIudrpMHr9d0L+Pnscnv6SQ4NDSmCvD7nHo5A1RXFx 5Pvj6yIQQXF8HQK/dOXTLnh7j+Ait1eDs/3SSj590nnVIxED4/2SaR4iXp9DjXyB jzCCJ0wR3uNVXKRsY8UrCJuDJobs9A== =wUxL -----END PGP SIGNATURE----- --8ekXl7uxNyZASCUVheKrUCjcdJ5KiW73G--