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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E3983C4332F for ; Thu, 10 Nov 2022 16:33:59 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4N7S8Q1XxZz3f3h for ; Fri, 11 Nov 2022 03:33:58 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=B+WA3Dlh; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nxp.com (client-ip=40.107.8.50; helo=eur04-vi1-obe.outbound.protection.outlook.com; envelope-from=vladimir.oltean@nxp.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=B+WA3Dlh; dkim-atps=neutral Received: from EUR04-VI1-obe.outbound.protection.outlook.com (mail-eopbgr80050.outbound.protection.outlook.com [40.107.8.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4N7S7J52gRz3cJM for ; Fri, 11 Nov 2022 03:32:58 +1100 (AEDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oDoShrMlIYDhOhwQM7EKT+YLuEgaxoXeKIgqsfe+Bc1kx8vNUmx7rpNs0wHEfXGXPvjK9T1azu/11woR5c3l35wg4MQlCJX3RtNv+w9fAyfi1tNBSKU2KgUTkEmXsid3QC0yYR9rbf+pXnEw/czMQiwDDIjf3QCXfKSnOe18D9g6LNWL/ePA40qXEOMXEfv2wO+vaz3dAhhmkAgsl5eeE2gYKDkSn0YwbPsw0iy0VM+UC2+p2FjPCI+an7aE43zEg3UdehUHk+ED2gGGVF0UbufihO4ZbobI/iqPijXsWbW2kCoKCNuPhvMOLYz3hvbKA4+4PLVVJ8FXqbKNh/m9rA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=iVJp+EJPnXpJpdK7Z8q47NvkYEv5uZ9LKP+UdhuuUYY=; b=OWEx2TTFtmwnwnKAob/LEs2nk9x5VTkCYKfkiUxq/VGDQpo/eMagJi84oPvLAoECdlybve2ZXSC/2+KNBGo/wifFFhPizq9/SfhxlUIbnPSoRS8Vxk+0buZX9BPnA8Snyr5tbRfqldyJBquQT61iFOrxR69UFRLf3W316mQdJH7FuktYCLorSAu6Zy0i93M4dxfhoQ82N0UPbRvJbb45P9KG2JKcBiFw2AG/GOmhgOWz0OjhMjdGVtCG4Fty5ysVkL38mmLywCvdbiyxjHAyBDQ3clNXyBjz1BMgFWR67AfWyOToZ4zKHy9v/7++kcV+4FG1ycffPomTLU6DGFMihA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=iVJp+EJPnXpJpdK7Z8q47NvkYEv5uZ9LKP+UdhuuUYY=; b=B+WA3DlhzHVW/58PWt1WHd/HjUH8Z6UTaWugLFB9sqA3qLP7jtStnOCh0ZrvqlfSwWVxjW86GfeLtkhVowexiypGKKvEU/IHm7jROWi/8bops27BjmtIB1zLfO0/PXKyapNR2OG0rF3qcxVldvDmPUM6JCo/XQgTUrp7kvxqWfI= Received: from VI1PR04MB5136.eurprd04.prod.outlook.com (2603:10a6:803:55::19) by DBBPR04MB7932.eurprd04.prod.outlook.com (2603:10a6:10:1ef::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5813.13; Thu, 10 Nov 2022 16:32:38 +0000 Received: from VI1PR04MB5136.eurprd04.prod.outlook.com ([fe80::4a73:29eb:28e3:f66d]) by VI1PR04MB5136.eurprd04.prod.outlook.com ([fe80::4a73:29eb:28e3:f66d%7]) with mapi id 15.20.5791.027; Thu, 10 Nov 2022 16:32:38 +0000 From: Vladimir Oltean To: Andrew Lunn Subject: Re: [PATCH net-next v2 00/11] net: pcs: Add support for devices probed in the "usual" manner Thread-Topic: [PATCH net-next v2 00/11] net: pcs: Add support for devices probed in the "usual" manner Thread-Index: AQHY78g7xxgXmFEQmk+41hVlaLM4fK43OSkAgAEQPACAAAl4gIAACPsAgAAIrYA= Date: Thu, 10 Nov 2022 16:32:38 +0000 Message-ID: <20221110163237.vigulusm2c5bepp3@skbuf> References: <20221103210650.2325784-1-sean.anderson@seco.com> <20221109224110.erfaftzja4fybdbc@skbuf> <20221110152925.3gkkp5opf74oqrxb@skbuf> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: VI1PR04MB5136:EE_|DBBPR04MB7932:EE_ x-ms-office365-filtering-correlation-id: bf6b5885-6312-4805-3cab-08dac3392e60 x-ld-processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VI1PR04MB5136.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(4636009)(7916004)(396003)(39860400002)(366004)(346002)(136003)(376002)(451199015)(5660300002)(7416002)(6512007)(44832011)(2906002)(9686003)(6486002)(6506007)(41300700001)(26005)(53546011)(8936002)(478600001)(76116006)(66476007)(66446008)(64756008)(66556008)(4326008)(8676002)(66946007)(86362001)(38100700002)(38070700005)(33716001)(122000001)(1076003)(186003)(83380400001)(6916009)(71200400001)(54906003)(316002);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?xYm3L1N+66NTwtEIA39Psb6/4DMW1zmHvXvvRROe6vS5GwiXcJ1mNkts/deZ?= =?us-ascii?Q?cTaOrjKrW3aNnH8ZC2HWMuZQhg0n8MJzdsaPZP2aiaOZSKtOi0dXtCS99YG2?= =?us-ascii?Q?aMwVQ+Lm7RXCoRv5SeFPSTG4jP3Eym5h8sXZlqPKA2XE3qkjNtt03tuYptEf?= =?us-ascii?Q?vCDZo49VFx79U6yJPfpdF+nxrpJGu1qKPVbj9N+HVdtYWePncmF2mhcZ7ha2?= =?us-ascii?Q?3JgsVsw3/BM+o6+gn5+0NDC8oBwKoY+a6MetBcGc3c7k/c5SClrU8prO7XC6?= =?us-ascii?Q?dbsIAnVSK/JmO/x7d5yypUyBQkWjNggyFh4+4aPchj+vVXvAnADWz9tqvc1o?= =?us-ascii?Q?D4hCQN4BF+ZMz2eNnhWJFXDFLGtNfigOXFui7Hw5i6abvmo3airCEowG+Acw?= =?us-ascii?Q?2mTkLF2DUmXbVEKytGC6n/z0+fn7IKXCuGXC2Q2R6fkZ63Qeaq8sfmGEY14h?= =?us-ascii?Q?2p9sGxA11uw1QRVrNuddb3p3BFLhgfgj7+qdly9h3fJKcRKK4LJ8cwLC3rjt?= =?us-ascii?Q?VHHGHg61qx8ECSwgCzkeesSDfHYvaXwyGJ+hy3UwFGzdVceidbjxbsUTRZ0q?= =?us-ascii?Q?cC4Hgzy0D15Qn2cdVeYWX+SMQCNSob8vdflY7AukVqbxzf86DV5T7YzkgwFC?= =?us-ascii?Q?StobRdjvOCWIzLS+w9jd2dA2/pDB79kbU82HC0JFTp/ACn0w4t/oDJ6sCwaT?= =?us-ascii?Q?wIKzdHNMxyuJ9m4c1gQF5+Ay78+Qmx1ajSoM+p6luAumMYyVCtKik85QS7/v?= =?us-ascii?Q?ttJNwwNrIKFx+iN3hxiFi4t36tkfzAYAIwHkPYCQeiyj7C1Owjb5t+2qQ76N?= =?us-ascii?Q?w2DmZY3i97r1bu1x3mJo4SbrGMHj+D+u8ifvFIRb28Rf87Wc3Y77m7rr9T4h?= =?us-ascii?Q?5pOVDKeKaRgHm34Yyd+AcBFLVEzVpnHrZIrpHa9zufK+JsOeLGhwpI17KUyq?= =?us-ascii?Q?ikxrfHqWXFzSNpRtaB6Q/A+PU051PJTyo0bBqTfb/o0giSQQXUikXvgv5/aB?= =?us-ascii?Q?b1j9+lPy6FQAUuXxG4+6MC0dVPXij0PSFcngDPIeINB7ODYe0UcZhv0xJqh9?= =?us-ascii?Q?KBEFMa/DJgvivsqyBMK1VrzbRAEUpk9ly7+Jd+trHorUmUFOHZ13iZA7bgsm?= =?us-ascii?Q?PzNce4qlRh+BG2MQeIv7anJh0QHDgFN/7lcdHYsFAiJQiJKLwASORy/KZLvC?= =?us-ascii?Q?47u5J4rHYQcOhT8WwrGfsktdnu1iQOMlyC0go6y7M6M2o8bW5hxgUOXpsfOK?= =?us-ascii?Q?Ov7GXMBRklO0i6LsAqZL4HuElDo2M/TcsXDDEEzAwb07OIzBdS3wKcsvqTVE?= =?us-ascii?Q?mLNtmSwLtsw2V0btCjxyCCYlC9CdsN5SVqg4WlqNwLqMpKqWTyJFxuPUYh+d?= =?us-ascii?Q?9lta8hQVj403XVbT4fbSZCJ0S58Y4w2UBHoRCCbyXieNFCmfb0XN+8VnFAs8?= =?us-ascii?Q?IHuIdjMwNcjWqYzGCOgbEVR9fLt8QXqC2ZHJeF/CJChkabmRGSsyIDQEP1vV?= =?us-ascii?Q?69++5k81AjyHeYecia5nsqqzYKlzf/9yf2hebTg9/D6pIO/B/kYHpCke1wDZ?= =?us-ascii?Q?5+1wAK4VfwSXJZ2YckdOi2xgeDLoRrZ3p8UCLMvT39G7FQ4JIGTJAOach6nd?= =?us-ascii?Q?yA=3D=3D?= Content-Type: text/plain; charset="us-ascii" Content-ID: <4BEF6EDFB4ABFA40B38A693E5EDFFEF8@eurprd04.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB5136.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: bf6b5885-6312-4805-3cab-08dac3392e60 X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Nov 2022 16:32:38.4801 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: ji66M3kLWEh0XMjOgbsJD+lQW4EsbyHAdfK13kZJXZG7MpC/R1O9cVDTqOSkBqfoYSzfws74GDuLOSYelkNC+w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBBPR04MB7932 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexandre Belloni , Madalin Bucur , Eric Dumazet , Paul Mackerras , Krzysztof Kozlowski , Ioana Ciornei , "UNGLinuxDriver@microchip.com" , Frank Rowand , Florian Fainelli , Saravana Kannan , Sean Anderson , Russell King , Jakub Kicinski , Paolo Abeni , Vivien Didelot , "devicetree@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , Claudiu Manoil , Rob Herring , "linux-arm-kernel@lists.infradead.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Leo Li , Vladimir Oltean , Shawn Guo , "David S . Miller" , Heiner Kallweit Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, Nov 10, 2022 at 05:01:34PM +0100, Andrew Lunn wrote: > On Thu, Nov 10, 2022 at 03:29:26PM +0000, Vladimir Oltean wrote: > > On Thu, Nov 10, 2022 at 09:55:32AM -0500, Sean Anderson wrote: > > > On 11/9/22 17:41, Vladimir Oltean wrote: > > > > On Thu, Nov 03, 2022 at 05:06:39PM -0400, Sean Anderson wrote: > > > >> Several (later) patches in this series cannot be applied until a s= table > > > >> release has occured containing the dts updates. > > > >=20 > > > > New kernels must remain compatible with old device trees. > > >=20 > > > Well, this binding is not present in older device trees, so it needs = to > > > be added before these patches can be applied. It also could be possib= le > > > to manually bind the driver using e.g. a helper function (like what i= s > > > done with lynx_pcs_create_on_bus). Of course this would be tricky, > > > because we would need to unbind any generic phy driver attached, but > > > avoid unbinding an existing Lynx PCS driver. > >=20 > > If you know the value of the MII_PHYSID1 and MII_PHYSID2 registers for > > these PCS devices, would it be possible to probe them in a generic way > > as MDIO devices, if they lack a compatible string? >=20 > That is not how it currently works. If a device on an MDIO bus has a > compatible, it is assumed to be an mdio device, and it is probed in a > generic way as an sort of mdio device. It could be an Ethernet switch, > or Broadcom has some generic PHYs which are mdio devices, etc. >=20 > If there is no compatible, the ID registers are read and it is assumed > to be a PHY. It will be probed as a PHY. The probe() function will be > given a phydev etc. >=20 > It will need some core changes to allow an mdio device to be probed > via the ID registers. Yes, it would require extending struct mdio_driver with something like what struct phy_driver has (u32 phy_id, u32 phy_id_mask), or with a more generic phy_id_match_table (similar to maybe of_match_table). I don't see a conceptually simpler way though.=