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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9DE45ECAAD8 for ; Tue, 13 Sep 2022 16:33:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ire6P19Oz9a6+2BPIjfyfeX51g6K9JClgiARmlPnChM=; b=z8NjU0/4YvstzS yyIB9M+5MqYHtVqfz9eSJhcqKLCBVHqge686dudSazLV5L4Y3MGayzGZowNwVQ3VgZ7xLkCDkfMuF LUVibestk1nAMjlFI4ZdCAC3KBcUaEJbbWcCO1VFYPErTqJ1vnSRKDvyX71asO4T6ErCIlryF1nXn uZp+F9dUSBhmybMTezuVAb1SYr17tg0zI/XOupKjojP53dIsNnnZZdlad8v57onReQfxYdaUa7pjN IGVNRd+k+3JpQ/j4O1YXzrND7/OkROYaU4qIM9PLmeyGVc1ABUVi0B9daKq1cgJSLC6mz4VNfJ5mo oP4HcJKiHkQmkIThKetg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oY8pP-00DMfb-Fq; Tue, 13 Sep 2022 16:32:04 +0000 Received: from mga02.intel.com ([134.134.136.20]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oY8pK-00DMcU-4E for linux-arm-kernel@lists.infradead.org; Tue, 13 Sep 2022 16:31:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1663086718; x=1694622718; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=V80BdvPU7ap78HoolUzQor9A2iHpp5rs73DM1e1058s=; b=GP6d9I3VnWywikDIqUT/aFLo58IIfqmDzKmSe5YIsiQIkwBZ0MjkS33q 1049NGFmZnaxlwe8HAlgqbHBxZlK0qXRPMvW5f0Rdw8F3ffXYFwbSKy23 jW4iCQkYbHuAaeX6AarPk4GL+3tT24/c7f4Y5y3t3rugaMLyh1+6vTKPq 2jkHcKJZQZTi/eHzF1LWulWE29gYgArJ3MgZWK2nTPHEVhAj920tmG1QQ VL/NPS8CSXT0/eCFGuxzzs721SF76vrFXDCjjrwRFyBYsx6cSxal3kEma m4ROeNTiNhk2GHiX0vZ5byohiA5F/HLl4ccpN+W4ekQIaDBIXwMHQDmHO g==; X-IronPort-AV: E=McAfee;i="6500,9779,10469"; a="285207776" X-IronPort-AV: E=Sophos;i="5.93,313,1654585200"; d="scan'208";a="285207776" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Sep 2022 09:31:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,313,1654585200"; d="scan'208";a="594008224" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga006.jf.intel.com with ESMTP; 13 Sep 2022 09:31:32 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 3935B235; Tue, 13 Sep 2022 19:31:49 +0300 (EEST) From: Andy Shevchenko To: "Rafael J. Wysocki" , Andy Shevchenko , Hans de Goede , Ard Biesheuvel , Wolfram Sang , Mark Brown , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org, devel@acpica.org Cc: "Rafael J. Wysocki" , Len Brown , Elie Morisse , Nehal Shah , Shyam Sundar S K , Khalil Blaiech , Andy Gross , Bjorn Andersson , Konrad Dybcio , Will Deacon , Mark Rutland , Daniel Mack , Haojian Zhuang , Robert Jarzmik , Robert Moore Subject: [PATCH v3 1/8] ACPI: utils: Add acpi_dev_uid_to_integer() helper to get _UID as integer Date: Tue, 13 Sep 2022 19:31:40 +0300 Message-Id: <20220913163147.24258-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220913163147.24258-1-andriy.shevchenko@linux.intel.com> References: <20220913163147.24258-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220913_093158_346960_CA7E9E02 X-CRM114-Status: GOOD ( 14.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Some users interpret _UID only as integer and for them it's easier to have an integer representation of _UID. Add respective helper for that. Signed-off-by: Andy Shevchenko Reviewed-by: Hans de Goede --- drivers/acpi/utils.c | 24 ++++++++++++++++++++++++ include/acpi/acpi_bus.h | 1 + include/linux/acpi.h | 5 +++++ 3 files changed, 30 insertions(+) diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 4acd6f7d1395..2ea14648a661 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -793,6 +793,30 @@ bool acpi_dev_hid_uid_match(struct acpi_device *adev, } EXPORT_SYMBOL(acpi_dev_hid_uid_match); +/** + * acpi_dev_uid_to_integer - treat ACPI device _UID as integer + * @adev: ACPI device to get _UID from + * @integer: output buffer for integer + * + * Considers _UID as integer and converts it to @integer. + * + * Returns 0 on success, or negative error code otherwise. + */ +int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) +{ + const char *uid; + + if (!adev) + return -ENODEV; + + uid = acpi_device_uid(adev); + if (!uid) + return -ENODATA; + + return kstrtou64(uid, 0, integer); +} +EXPORT_SYMBOL(acpi_dev_uid_to_integer); + /** * acpi_dev_found - Detect presence of a given ACPI device in the namespace. * @hid: Hardware ID of the device. diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 42f76f2c2d49..1804d7a70918 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -739,6 +739,7 @@ static inline bool acpi_device_can_poweroff(struct acpi_device *adev) } bool acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2); +int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer); void acpi_dev_clear_dependencies(struct acpi_device *supplier); bool acpi_dev_ready_for_enumeration(const struct acpi_device *device); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index ed4aa395cc49..619b2b1e4fb4 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -799,6 +799,11 @@ acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *u return false; } +static inline int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer) +{ + return -ENODEV; +} + static inline struct acpi_device * acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) { -- 2.35.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel