From patchwork Fri Jun 14 17:54:22 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: 166899 Delivered-To: patch@linaro.org Received: by 2002:a92:4782:0:0:0:0:0 with SMTP id e2csp2353136ilk; Fri, 14 Jun 2019 10:55:39 -0700 (PDT) X-Google-Smtp-Source: APXvYqzvKvqBKQIWwpaPkl4yJeCJC2+X5uquXSBloruwX0X4rIS4MRvkF34M68foN53OqZsuNmAL X-Received: by 2002:a17:90a:b296:: with SMTP id c22mr12718686pjr.28.1560534939459; Fri, 14 Jun 2019 10:55:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560534939; cv=none; d=google.com; s=arc-20160816; b=rwOMgrnzRWW3zveKzgiZDygjT/Z2yht7LlZAnba3us8rniSeKcTg4JGgDY51cxpdZe e9betWMr5Qbe6uOTn5mtp4nnLQInHPkrKN/8LfzEVIirujAfTDAGCXpRGT8GvHwQCXb/ JDDAgb7hJMplzzTk+kMelk7wVn1YCxZeuptRoKa8SNisQBEKrvh19g65e7wWCHEHZAfC 5LRDG2aL5yIztlxwhsT7EBJ4xsMTzfju97D1K4jXuyxiT98hSSkMh59S/ZYzW39GB6EC tBrRh7fltjULBGbl3ut8yZp44pdNCvRS4PkiqNNrsXLUpbbPqJ3tCt9rnqtOpG4rSulB rBvw== 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=5EsNvNsiV1dmZv/FdlLYAZ6gZbdnKgb0t8sdcrvxhxM=; b=zmsVXoGANcp45nWEu+15uiFwTS47JGehCgf5/Caa19YRYPh2TLnv0zFORaFmPtYs9U +j+4ehmM8J9eA6gccNRp/f8HXkfnCvy2rvtlyUByIIKpMnH0LJ2oo/ux+Wv5uxnP9uzI 1wxd3YCAQOIvRN5O2ElQr5HODhGjSXiBoLnX0ABu6IDlQmQnCr6tsYKLrx6GWCU1lPE8 O0hmFuq4j+ZQ4H/PnWPYS5sEnDXu3TPXgfUieCFW/9ol390QXY3BoyWelXbEU+0yTL2s InDl9x+07kgijrbNFOT3RpnguuYlVhxD/a+EdwpNW1eAXz/x00+6RC6GiD9CvAyuL6jG zLAQ== 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 a1si3162354pgj.143.2019.06.14.10.55.39; Fri, 14 Jun 2019 10:55:39 -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 S1727777AbfFNRzh (ORCPT + 17 others); Fri, 14 Jun 2019 13:55:37 -0400 Received: from foss.arm.com ([217.140.110.172]:39722 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727727AbfFNRza (ORCPT ); Fri, 14 Jun 2019 13:55:30 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 70D63D6E; Fri, 14 Jun 2019 10:55:30 -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 BF1EA3F718; Fri, 14 Jun 2019 10:55:29 -0700 (PDT) From: Suzuki K Poulose To: linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, rafael@kernel.org, suzuki.poulose@arm.com Subject: [PATCH v2 27/28] drivers: Introduce driver_find_device_by_acpi_dev() helper Date: Fri, 14 Jun 2019 18:54:22 +0100 Message-Id: <1560534863-15115-28-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1560534863-15115-1-git-send-email-suzuki.poulose@arm.com> References: <1560534863-15115-1-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 wrapper to driver_find_device() to search for a device by the ACPI COMPANION device, reusing the generic match function. Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Signed-off-by: Suzuki K Poulose --- include/linux/device.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) -- 2.7.4 diff --git a/include/linux/device.h b/include/linux/device.h index 77f817d..a2a8ac2 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -481,6 +481,27 @@ static inline struct device *driver_find_next_device(struct device_driver *drv, return driver_find_device(drv, start, NULL, device_match_any); } +#ifdef CONFIG_ACPI +/** + * driver_find_device_by_acpi_dev : device iterator for locating a particular + * device matching the ACPI_COMPANION device. + * @driver: the driver we're iterating + * @adev: ACPI_COMPANION device to match. + */ +static inline struct device * +driver_find_device_by_acpi_dev(struct device_driver *drv, + const struct acpi_device *adev) +{ + return driver_find_device(drv, NULL, adev, device_match_acpi_dev); +} +#else +static inline struct device * +driver_find_device_by_acpi_dev(struct device_driver *drv, const void *adev) +{ + return NULL; +} +#endif + void driver_deferred_probe_add(struct device *dev); int driver_deferred_probe_check_state(struct device *dev);