From patchwork Mon Feb 21 16:26:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 12753929 X-Patchwork-Delegate: kuba@kernel.org 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 539EDC433F5 for ; Mon, 21 Feb 2022 16:39:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1380885AbiBUQjX (ORCPT ); Mon, 21 Feb 2022 11:39:23 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:49580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1380805AbiBUQjL (ORCPT ); Mon, 21 Feb 2022 11:39:11 -0500 Received: from mslow1.mail.gandi.net (mslow1.mail.gandi.net [217.70.178.240]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A5492408D; Mon, 21 Feb 2022 08:38:40 -0800 (PST) Received: from relay9-d.mail.gandi.net (unknown [IPv6:2001:4b98:dc4:8::229]) by mslow1.mail.gandi.net (Postfix) with ESMTP id 62B7AD26C6; Mon, 21 Feb 2022 16:30:05 +0000 (UTC) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id B2FF4FF813; Mon, 21 Feb 2022 16:29:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1645460965; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IwJT7O+ycIIE2B/+I0PXXUOt4c+jLoAf67OAg4gFgvc=; b=Qwo8YWwLdfMsmfiY94ufBkAM9expN513dX5+VcMfJhaEjDPz+QL9DhWi7HCxyANoNo9jG5 hfyRmusIiVsECh+6ve4bNOHBeq2T1FvaCx2xjaUJGSajuNXSa2XwCnyBDcAzxnCYfSlZXN 56BGKVKQCkkfVh/LcJQyH51f0UXsl3K4juxlDsbotEDEn+DlP/tXwwrUQ/hObDQxyx9Bht qyV5m92oGiKLiJyY/FZFO7G5PRflHWEMe6+Cs5aK61Rtuj9cefSnIlkza1rb5xgt0kpQqh iLXH73CPxNLS9rVBejg0uYUDYO+utSOHCPl8t6Za764WxXqH/M7tebae7L2kXw== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "Rafael J . Wysocki" , Wolfram Sang , Peter Rosin , Russell King , Andrew Lunn , Heiner Kallweit , "David S . Miller" , Jakub Kicinski Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-i2c@vger.kernel.org, netdev@vger.kernel.org, Thomas Petazzoni , Alexandre Belloni , =?utf-8?b?Q2zDqW1lbnQg?= =?utf-8?b?TMOpZ2Vy?= Subject: [RFC 10/10] net: sfp: add support for fwnode Date: Mon, 21 Feb 2022 17:26:52 +0100 Message-Id: <20220221162652.103834-11-clement.leger@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220221162652.103834-1-clement.leger@bootlin.com> References: <20220221162652.103834-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC Add support to retrieve a i2c bus in sfp with a fwnode. This support is using the fwnode API which also works with device-tree and ACPI. For this purpose, the device-tree and ACPI code handling the i2c adapter retrieval was factorized with the new code. This also allows i2c devices using a software_node description to be used by sfp code. Signed-off-by: Clément Léger Reviewed-by: Russell King (Oracle) --- drivers/net/phy/sfp.c | 44 +++++++++++++------------------------------ 1 file changed, 13 insertions(+), 31 deletions(-) diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 4720b24ca51b..9d9e3d209408 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -2499,43 +2499,25 @@ static int sfp_probe(struct platform_device *pdev) return err; sff = sfp->type = &sfp_data; + if (dev_fwnode(&pdev->dev)) { + struct fwnode_handle *fwnode = dev_fwnode(&pdev->dev); + struct fwnode_handle *np; - if (pdev->dev.of_node) { - struct device_node *node = pdev->dev.of_node; - const struct of_device_id *id; - struct device_node *np; + if (!is_acpi_device_node(fwnode)) { + sff = device_get_match_data(&pdev->dev); + if (WARN_ON(!sff)) + return -EINVAL; - id = of_match_node(sfp_of_match, node); - if (WARN_ON(!id)) - return -EINVAL; - - sff = sfp->type = id->data; - - np = of_parse_phandle(node, "i2c-bus", 0); - if (!np) { - dev_err(sfp->dev, "missing 'i2c-bus' property\n"); - return -ENODEV; + sfp->type = sff; } - i2c = of_find_i2c_adapter_by_node(np); - of_node_put(np); - } else if (has_acpi_companion(&pdev->dev)) { - struct acpi_device *adev = ACPI_COMPANION(&pdev->dev); - struct fwnode_handle *fw = acpi_fwnode_handle(adev); - struct fwnode_reference_args args; - struct acpi_handle *acpi_handle; - int ret; - - ret = acpi_node_get_property_reference(fw, "i2c-bus", 0, &args); - if (ret || !is_acpi_device_node(args.fwnode)) { - dev_err(&pdev->dev, "missing 'i2c-bus' property\n"); + np = fwnode_find_reference(fwnode, "i2c-bus", 0); + if (!np) { + dev_err(&pdev->dev, "Cannot parse i2c-bus\n"); return -ENODEV; } - - acpi_handle = ACPI_HANDLE_FWNODE(args.fwnode); - i2c = i2c_acpi_find_adapter_by_handle(acpi_handle); - } else { - return -EINVAL; + i2c = fwnode_find_i2c_adapter_by_node(np); + fwnode_handle_put(np); } if (!i2c)