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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 51259C04AB5 for ; Mon, 3 Jun 2019 15:54:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 30DF327A6D for ; Mon, 3 Jun 2019 15:54:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729734AbfFCPys (ORCPT ); Mon, 3 Jun 2019 11:54:48 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:53654 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728731AbfFCPvT (ORCPT ); Mon, 3 Jun 2019 11:51:19 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 90E4B15AB; Mon, 3 Jun 2019 08:51:18 -0700 (PDT) Received: from en101.cambridge.arm.com (en101.cambridge.arm.com [10.1.196.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 817F83F246; Mon, 3 Jun 2019 08:51:17 -0700 (PDT) From: Suzuki K Poulose To: linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, rafael@kernel.org, suzuki.poulose@arm.com, Ulf Hansson Subject: [RFC PATCH 13/57] drivers: Add generic helper for matching device by fwnode Date: Mon, 3 Jun 2019 16:49:39 +0100 Message-Id: <1559577023-558-14-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1559577023-558-1-git-send-email-suzuki.poulose@arm.com> References: <1559577023-558-1-git-send-email-suzuki.poulose@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Instead of spilling the match function to check the device fwnode everywhere, let us add a generic helper which can be reused by all. Also adds a wrapper for bus_find_device to find a device by fwnode. Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Cc: Ulf Hansson Signed-off-by: Suzuki K Poulose --- drivers/base/core.c | 6 ++++++ include/linux/device.h | 15 +++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/drivers/base/core.c b/drivers/base/core.c index d20699c..141c4f8 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -3334,3 +3334,9 @@ int device_match_of_node(struct device *dev, void *np) return dev->of_node == np; } EXPORT_SYMBOL_GPL(device_match_of_node); + +int device_match_fwnode(struct device *dev, void *fwnode) +{ + return dev_fwnode(dev) == fwnode; +} +EXPORT_SYMBOL_GPL(device_match_fwnode); diff --git a/include/linux/device.h b/include/linux/device.h index fe16be4..54be931 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -164,6 +164,7 @@ struct device *subsys_dev_iter_next(struct subsys_dev_iter *iter); void subsys_dev_iter_exit(struct subsys_dev_iter *iter); int device_match_of_node(struct device *dev, void *np); +int device_match_fwnode(struct device *dev, void *fwnode); int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, int (*fn)(struct device *dev, void *data)); @@ -188,6 +189,20 @@ static inline struct device *bus_find_device_by_of_node(struct bus_type *bus, return bus_find_device(bus, start, np, device_match_of_node); } +/** + * bus_find_device_by_fwnode : device iterator for locating a particular device + * matching the fwnode. + * @bus: bus type + * @start: Device to begin with + * @fwnode: fwnode of the device to match. + */ +static inline struct device *bus_find_device_by_fwnode(struct bus_type *bus, + struct device *start, + struct fwnode_handle *fwnode) +{ + return bus_find_device(bus, start, fwnode, device_match_fwnode); +} + struct device *subsys_find_device_by_id(struct bus_type *bus, unsigned int id, struct device *hint); int bus_for_each_drv(struct bus_type *bus, struct device_driver *start, -- 2.7.4