From patchwork Mon Jun 3 15:50:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suzuki K Poulose X-Patchwork-Id: 165625 Delivered-To: patch@linaro.org Received: by 2002:a92:9e1a:0:0:0:0:0 with SMTP id q26csp4645001ili; Mon, 3 Jun 2019 08:52:15 -0700 (PDT) X-Google-Smtp-Source: APXvYqzj/NV84jEkeJipEXyFftqsJN7Cw52T/BeJVJ9jq16GiMUAed00guL3JTZvli77yPHcFVAX X-Received: by 2002:aa7:989b:: with SMTP id r27mr30983287pfl.108.1559577135056; Mon, 03 Jun 2019 08:52:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1559577135; cv=none; d=google.com; s=arc-20160816; b=Hir+WiiTPdFwJwmXhPRX1iHd/usvF8mFdtEzb4VfYhQP7cOsCg5nBSoXrRPM80xURq dxMLf/65hFfJZoedcvTRj87EzX9UiOKbrKM+c8rNiJGmJcpE2IC6H2avWpoPF/YevQ9z XlN/R88mSWpBVxheXODfDaFr7qehblGWR0nAidxqrNAtdV1pZexOAZEh0Nf9ni5fR3uc PPdJGYJ0qYfjnfno8avMS0vxyDTLx7eZNlVrKQPFJs03oI6MXUCBLexDWcxfkA6gmIVM EWLI1AfWNc8rtioTmKlnD0z8IiUVNXhVa1Cwb0sa//ymeGkk15rv0veUabhQIotVgmYZ EaQA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from; bh=drvsc7DDi0Ibvj/dvBIQdCySXJOyVjrQ/9vK8EFf25w=; b=DT5cd+ScYhnP5CziMQWVoCXJSSe94teD/PSMlIqZJWKhAf6TqYmQKXKcpOCWKEV+yF 96k8yQYmfdgMqx76gb6nqTQrBGGOu1OT1JHhNIE7SBuJ3RBn7B2EL0b07GOKQy4XQZRj TIBE+/IGZUNqsveH1k/HfaPD0bB/NbAbbj4yWMliDI2uDtAFT+IlD5L5Z/hF/9WfkLxY FCcF+bZ5uEsRcXjtRpLVJ0GRy87vzDvYhGFk15sCf0SLfiL0GJxcVbCBBKjB7wd7BIAJ spME6FXnLfRTmimq1KW2GPI2qC9m3Hb4xAcNzPF3usn93QReBTY5Ba+8G2xtO9Y3Y4iR NIuQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id x2si10797868pju.24.2019.06.03.08.52.14; Mon, 03 Jun 2019 08:52:15 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729550AbfFCPwN (ORCPT + 30 others); 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(+) -- 2.7.4 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);