From patchwork Fri Jun 14 17:54:04 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: 166884 Delivered-To: patch@linaro.org Received: by 2002:a92:4782:0:0:0:0:0 with SMTP id e2csp2352655ilk; Fri, 14 Jun 2019 10:55:07 -0700 (PDT) X-Google-Smtp-Source: APXvYqx0qKH9JmBqaO5MPyX0pVnoDhschMKLSuJm0cWbj1OeQbatKaWaDpo3bqafVkIo1V+nwn/c X-Received: by 2002:a17:90a:2561:: with SMTP id j88mr12408078pje.121.1560534906968; Fri, 14 Jun 2019 10:55:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560534906; cv=none; d=google.com; s=arc-20160816; b=xhSS/69pn+FVU80hf8vr85o+oDyO7U9EJoI+gRYXw2pXfxkpRlcG8BS+tSxHwYlus3 DWXT0skX/CKxD32j21CDuPAOPLYW8fII3RS8BICUUs0liOWw7U9LTMPeyywoMdCDzmjK 17yAZ0Hsl2wKTINKY4wfl4skajI+dWEgN3hXCqlyrWILy2dIXxcMfgaPxCx9ZvvDoZpG /8svkvgVzCFxO9j+6CcltC4s6ttQqSFqjYd2mAua3k+RZkPpj6GNxMT4bHwdGZpctmtg 5+VyKhACoi4juUaRnaHsvk7V7oygyW/Ca+0ojTN2Ila53EaBbx/++fF0I8Yv0+POsBQa xrag== 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=CeJAGbwwBA7CtijUMYZbDd70ASAVRCcKIyjMRHAK3os=; b=Hfc91Ssn19BJIqBi3eND7uS7WchKnDQgwL5JDXS2fgF7elwX4jCa/Y+wd9wmql3qc9 +SpZ8HVMBpAx3jBU0KWAjJyzKRg8H++n65ufFB56B0X3ySXlZtKTvkGUnpsuswGBLUsB 1zgIr7IOStp5M1D/oCfnbK/yL/eLeo+SCyWT/eVXOjLA5xfeiA14gx0pyeJqkdmzsnd9 pfG2m5WRiMSBk3o8RRweX0tsYC3jMKp6LTn3gEjr9MzCuVBBL9S5BvBkjUvi+WySddhY Kb4/MPbPk489/E0tWWjXDXQBjCG2p/0txWRNoSap9GYwGEhorrEcHOvqCjPFZIbaSyGj JAHw== 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 v11si2767868plg.136.2019.06.14.10.55.06; Fri, 14 Jun 2019 10:55:06 -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 S1727453AbfFNRzF (ORCPT + 17 others); Fri, 14 Jun 2019 13:55:05 -0400 Received: from foss.arm.com ([217.140.110.172]:39438 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727434AbfFNRzD (ORCPT ); Fri, 14 Jun 2019 13:55:03 -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 EFBB9346; Fri, 14 Jun 2019 10:55:02 -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 D20023F718; Fri, 14 Jun 2019 10:55:01 -0700 (PDT) From: Suzuki K Poulose To: linux-kernel@vger.kernel.org Cc: gregkh@linuxfoundation.org, rafael@kernel.org, suzuki.poulose@arm.com, Len Brown , linux-acpi@vger.kernel.org, linux-spi@vger.kernel.org, Mark Brown Subject: [PATCH v2 09/28] drivers: Add generic match helper by ACPI_COMPANION device Date: Fri, 14 Jun 2019 18:54:04 +0100 Message-Id: <1560534863-15115-10-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 generic helper to match a device by the ACPI_COMPANION device. This will be later used for providing wrappers for (bus/class/driver)_find_device(). Cc: Len Brown Cc: linux-acpi@vger.kernel.org Cc: linux-spi@vger.kernel.org Cc: Mark Brown Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Signed-off-by: Suzuki K Poulose --- drivers/base/core.c | 6 ++++++ include/linux/device.h | 1 + 2 files changed, 7 insertions(+) -- 2.7.4 diff --git a/drivers/base/core.c b/drivers/base/core.c index b827ca1..597095b 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -3346,3 +3346,9 @@ int device_match_devt(struct device *dev, const void *pdevt) return dev->devt == *(dev_t *)pdevt; } EXPORT_SYMBOL_GPL(device_match_devt); + +int device_match_acpi_dev(struct device *dev, const void *adev) +{ + return ACPI_COMPANION(dev) == adev; +} +EXPORT_SYMBOL(device_match_acpi_dev); diff --git a/include/linux/device.h b/include/linux/device.h index f315692..a03b50d 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -166,6 +166,7 @@ void subsys_dev_iter_exit(struct subsys_dev_iter *iter); int device_match_of_node(struct device *dev, const void *np); int device_match_fwnode(struct device *dev, const void *fwnode); int device_match_devt(struct device *dev, const void *pdevt); +int device_match_acpi_dev(struct device *dev, const void *adev); int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, int (*fn)(struct device *dev, void *data));