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Wysocki" , Jeremy Linton , Andrew Lunn , Andy Shevchenko , Florian Fainelli , Russell King - ARM Linux admin , Cristi Sovaiala , Florin Laurentiu Chiculita , Ioana Ciornei , Madalin Bucur , Heikki Krogerus , Marcin Wojtas , Pieter Jansen Van Vuuren , Jon , Saravana Kannan , Randy Dunlap Cc: linux-arm-kernel@lists.infradead.org, Diana Madalina Craciun , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux.cj@gmail.com, netdev@vger.kernel.org, Laurentiu Tudor , Calvin Johnson , Len Brown , "Rafael J. Wysocki" Subject: [net-next PATCH v7 10/16] ACPI: utils: Introduce acpi_get_local_address() Date: Thu, 11 Mar 2021 11:50:05 +0530 Message-Id: <20210311062011.8054-11-calvin.johnson@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210311062011.8054-1-calvin.johnson@oss.nxp.com> References: <20210311062011.8054-1-calvin.johnson@oss.nxp.com> X-Originating-IP: [14.142.151.118] X-ClientProxiedBy: HKAPR03CA0026.apcprd03.prod.outlook.com (2603:1096:203:c9::13) To AM0PR04MB5636.eurprd04.prod.outlook.com (2603:10a6:208:130::22) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv03152.swis.in-blr01.nxp.com (14.142.151.118) by HKAPR03CA0026.apcprd03.prod.outlook.com (2603:1096:203:c9::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3955.9 via Frontend Transport; Thu, 11 Mar 2021 06:22:05 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 1db04771-33ab-4492-b892-08d8e4560265 X-MS-TrafficTypeDiagnostic: AM0PR04MB6611: X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:5516; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM0PR04MB5636.eurprd04.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(136003)(39860400002)(396003)(376002)(366004)(346002)(2906002)(921005)(16526019)(26005)(186003)(83380400001)(6486002)(8936002)(6506007)(66556008)(66946007)(55236004)(66476007)(44832011)(478600001)(6512007)(2616005)(316002)(54906003)(5660300002)(956004)(1006002)(52116002)(8676002)(110136005)(86362001)(4326008)(7416002)(1076003)(110426009); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1db04771-33ab-4492-b892-08d8e4560265 X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB5636.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Mar 2021 06:22:13.4944 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: B80SY+ffe7Ybdv6zvslsO9ODpRrsKM00aSuaz8uGnxj0Snkak7sH5vORe1zcdGhDedmyOk0CG6OGSFO2dsypQg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB6611 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Introduce a wrapper around the _ADR evaluation. Signed-off-by: Calvin Johnson --- Changes in v7: None Changes in v6: None Changes in v5: - Replace fwnode_get_id() with acpi_get_local_address() Changes in v4: - Improve code structure to handle all cases Changes in v3: - Modified to retrieve reg property value for ACPI as well - Resolved compilation issue with CONFIG_ACPI = n - Added more info into documentation Changes in v2: None drivers/acpi/utils.c | 14 ++++++++++++++ include/linux/acpi.h | 7 +++++++ 2 files changed, 21 insertions(+) diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 682edd913b3b..41fe380a09a7 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -277,6 +277,20 @@ acpi_evaluate_integer(acpi_handle handle, EXPORT_SYMBOL(acpi_evaluate_integer); +int acpi_get_local_address(acpi_handle handle, u32 *addr) +{ + unsigned long long adr; + acpi_status status; + + status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &adr); + if (ACPI_FAILURE(status)) + return -ENODATA; + + *addr = (u32)adr; + return 0; +} +EXPORT_SYMBOL(acpi_get_local_address); + acpi_status acpi_evaluate_reference(acpi_handle handle, acpi_string pathname, diff --git a/include/linux/acpi.h b/include/linux/acpi.h index fcdaab723916..700f9fc303ab 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -706,6 +706,8 @@ static inline u64 acpi_arch_get_root_pointer(void) } #endif +int acpi_get_local_address(acpi_handle handle, u32 *addr); + #else /* !CONFIG_ACPI */ #define acpi_disabled 1 @@ -953,6 +955,11 @@ static inline struct acpi_device *acpi_resource_consumer(struct resource *res) return NULL; } +static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) +{ + return -ENODEV; +} + #endif /* !CONFIG_ACPI */ #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC