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 C0DF0C04AB5 for ; Mon, 3 Jun 2019 15:52:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A490627930 for ; Mon, 3 Jun 2019 15:52:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729550AbfFCPwN (ORCPT ); Mon, 3 Jun 2019 11:52:13 -0400 Received: from foss.arm.com ([217.140.101.70]:54030 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729531AbfFCPwK (ORCPT ); Mon, 3 Jun 2019 11:52:10 -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 E1BD515AB; Mon, 3 Jun 2019 08:52:09 -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 01AF63F246; Mon, 3 Jun 2019 08:52:08 -0700 (PDT) From: Suzuki K Poulose To: linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, rafael@kernel.org, suzuki.poulose@arm.com Subject: [RFC PATCH 46/57] driver: Add variants of driver_find_device() Date: Mon, 3 Jun 2019 16:50:12 +0100 Message-Id: <1559577023-558-47-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 Add a wrappers to lookup a device by name for a given driver, by various generic properties of a device. This can avoid the proliferation of custom match functions throughout the drivers. Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Signed-off-by: Suzuki K Poulose --- include/linux/device.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/include/linux/device.h b/include/linux/device.h index 52d59d5..68d6e04 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -401,6 +401,50 @@ struct device *driver_find_device(struct device_driver *drv, struct device *start, void *data, int (*match)(struct device *dev, const void *data)); +/** + * driver_find_device_by_name - device iterator for locating a particular device + * of a specific name. + * @driver: the driver we're iterating + * @start: Device to begin with + * @name: name of the device to match + */ +static inline struct device *driver_find_device_by_name(struct device_driver *drv, + struct device *start, + const char *name) +{ + return driver_find_device(drv, start, (void *)name, device_match_name); +} + +/** + * driver_find_device_by_of_node- device iterator for locating a particular device + * by of_node pointer. + * @driver: the driver we're iterating + * @start: Device to begin with + * @np: of_node pointer to match. + */ +static inline struct device * +driver_find_device_by_of_node(struct device_driver *drv, + struct device *start, + const struct device_node *np) +{ + return driver_find_device(drv, start, (void *)np, device_match_of_node); +} + +/** + * driver_find_device_by_fwnode- device iterator for locating a particular device + * by fwnode pointer. + * @driver: the driver we're iterating + * @start: Device to begin with + * @fwnode: fwnode pointer to match. + */ +static inline struct device * +driver_find_device_by_fwnode(struct device_driver *drv, + struct device *start, + const struct fwnode_handle *fwnode) +{ + return driver_find_device(drv, start, (void *)fwnode, device_match_fwnode); +} + void driver_deferred_probe_add(struct device *dev); int driver_deferred_probe_check_state(struct device *dev); -- 2.7.4