From patchwork Fri May 4 17:07:19 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akshu Agrawal X-Patchwork-Id: 10381095 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 10F4A6038F for ; Fri, 4 May 2018 17:10:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F30E72945F for ; Fri, 4 May 2018 17:09:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E615229471; Fri, 4 May 2018 17:09:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 31E842945F for ; Fri, 4 May 2018 17:09:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751425AbeEDRJk (ORCPT ); Fri, 4 May 2018 13:09:40 -0400 Received: from mail-sn1nam02on0071.outbound.protection.outlook.com ([104.47.36.71]:47186 "EHLO NAM02-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751775AbeEDRJg (ORCPT ); Fri, 4 May 2018 13:09:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector1-amd-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=worI4gup0C3Owsi3bHHtYOglMyjXmwCJ1atjOb/fiyE=; b=O4p353eFYgfZ3T0wIrQK3OwJTTP9c+Wzim+lC1+eBzm5L/4du58LTIHueLaIH8HiNBMxESniOlCasmZG7mWySy/iVjn92u9imGueERYZbQHXPJb92AEmOeRXot2jEgJStEHeXWvZlrqsmXfdN/TMWRuyyzvj8Hbi5d9tpPj6XXA= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Akshu.Agrawal@amd.com; Received: from akshu-HP-EliteBook-745-G2.amd.com (202.56.249.162) by SN1PR12MB2366.namprd12.prod.outlook.com (2603:10b6:802:25::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.735.16; Fri, 4 May 2018 17:09:31 +0000 From: Akshu Agrawal Cc: djkurtz@chromium.org, akshu.agrawal@amd.com, Alexander.Deucher@amd.com, mturquette@baylibre.com, sboyd@kernel.org, christian.koenig@amd.com, airlied@redhat.com, Shaoyun.Liu@amd.com, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, rjw@rjwysocki.net, lenb@kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH v2 2/2] ACPI: APD: Add AMD misc clock handler support Date: Sat, 5 May 2018 01:07:19 +0800 Message-Id: <1525453639-30575-3-git-send-email-akshu.agrawal@amd.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1525453639-30575-1-git-send-email-akshu.agrawal@amd.com> References: <1525453639-30575-1-git-send-email-akshu.agrawal@amd.com> MIME-Version: 1.0 X-Originating-IP: [202.56.249.162] X-ClientProxiedBy: MA1PR0101CA0056.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:20::18) To SN1PR12MB2366.namprd12.prod.outlook.com (2603:10b6:802:25::19) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652020)(5600026)(48565401081)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7153060)(7193020); SRVR:SN1PR12MB2366; X-Microsoft-Exchange-Diagnostics: 1; SN1PR12MB2366; 3:ZqmKogJJvB39RpEsCyLIW5lcjdGbYmxL2zojX4/zTOPvkzJn7HtH8ZjN2i1XUmLLYrp5x20CV9oydeBVvYPwEqgkzHodNg3riNPMhG35uC8eauy4HWW/P4L/A87ZmRplCAkdO80QSoCMcT8EP/iWPaSfNp/TBB7mpXLyt+cW0iPNqxNrZgNdr+EEBWFepws3zZ6IRbkflqTrkdFs4chiBh7iSiBo92oET+H8tNBq0NAcL6Y2/IwKPIZUCcKfmIro; 25:edHhf3tBo/mDHqj0C6X4vgpXESR4kF+Xe6xUV7Aq78MugpdkTvEKdcvLA4hFXCyxNLlgKDQA6pYV4/t0ot8nuB8WUWfVxPgLuVzR3GL2fn1AzLN0IlWeWzLStDryHdQS3/2OeCA5qZn88LPaok1DLrPS2FmXhrb68EOAxMTltaQbEqNSbI2xlfJv5UjBpHn0T7Y7gpoBz5AVFZGquh7CeX63mBEbivKEBolaV7++u2Dfk/ZzGqZABG5PPUOGgXXXWu4LvIK8bcjR2dORz2zCtWgMlR3dmOMF8TMjzV/xbfqiWG98c0QinTItCKgrBszFe8P7MMDF3dORKBWnl8xRNw==; 31:1tuvxOs4C9uIiGB6oG5P+yDkijBbXAUTns3fOsSIiqXqqMnLMyGJpBtQOwKMb56IwHKdml6y8xzOT54alYnpNm+RnUMv4qgkosRGMNc5xHnofNiXdk7BnXOq7qQ4Di0LIuGYrdqeU124FsisJYON9zVpEZxH0V41KYla60yaY4Jf0ipjlHcbgzz/aeprlYO0VBAjBjIs00/MvvBCLhz1M/++ACVVoIb75dPlLmhj4mw= X-MS-TrafficTypeDiagnostic: SN1PR12MB2366: X-Microsoft-Exchange-Diagnostics: 1; SN1PR12MB2366; 20: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; 4:151Jz4pNcQCCCvnnkGuGl/uho1udKYZ2JPjYRstazWQEeAwCeREHr7T7E59oA2x5aeLTYt1MEIlNI5P24eIEjV9c4UTNNosmsL49Y8J1G1s2zsdG5zWyLj765vddrpiMNcgJwmv8fzho5EqUNusmS1UxH+16xZ8XzkcxsYxjfsRvNR1GkGnVVBcDDualoyS+YwPGxkVhmDB/RP2q91gR3rsTYo2wqa/Reh6ltx9kqS48Pfuvt+PoYJpJe8G7rbRbI7FnnRubc/Kkd+p68L1veiqxCPCCtw6q6YE5xCvEEZnj52Bd1qEEakDUIo0ojQg+vMo6nd91IuwhiZd7/Y4FFw== X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:(767451399110)(21532816269658); X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(8211001083)(6040522)(2401047)(5005006)(8121501046)(3231254)(944501410)(52105095)(10201501046)(3002001)(93006095)(93001095)(6055026)(6041310)(20161123558120)(20161123562045)(20161123564045)(20161123560045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(6072148)(201708071742011); SRVR:SN1PR12MB2366; BCL:0; PCL:0; RULEID:; SRVR:SN1PR12MB2366; X-Forefront-PRVS: 06628F7CA4 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009020)(39860400002)(346002)(396003)(376002)(366004)(39380400002)(199004)(189003)(26005)(11346002)(5660300001)(2906002)(50466002)(52116002)(186003)(1671002)(106356001)(68736007)(51416003)(36756003)(7696005)(105586002)(4326008)(76176011)(8936002)(48376002)(50226002)(97736004)(3846002)(44832011)(386003)(109986005)(6116002)(478600001)(72206003)(7736002)(305945005)(486006)(53416004)(16526019)(81166006)(575784001)(16586007)(25786009)(8676002)(6486002)(86362001)(476003)(956004)(81156014)(316002)(53936002)(66066001)(47776003)(2616005)(6666003)(59450400001)(446003)(266003); DIR:OUT; SFP:1101; SCL:1; SRVR:SN1PR12MB2366; H:akshu-HP-EliteBook-745-G2.amd.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) X-Microsoft-Exchange-Diagnostics: =?us-ascii?Q?1; SN1PR12MB2366; 23:VGgfEyPHDqaMVZxU6xOGrQm9eyYXjr85LijKErAH5?= =?us-ascii?Q?569A5664g/Zu5GsYXxz+ETOxfMEfI9VyM7zkCmSCdXNScPq6LeLy8KTaMAe1?= =?us-ascii?Q?+o97fEKI0ab6MF2VHvSCyKYhv9sQ6aOmzi/YlBM3i6PHFi+40bSZHP3l3Mgx?= =?us-ascii?Q?oMDekwRRLRY/WG/b4lsw4V4BSEnsxuNHf5KyxqrBz6Gn62/yD6YGXSmaJeay?= =?us-ascii?Q?w0NofwAi7gdQFK73pOkOpfEw79P39JM4JA5b6PGqnYmUaD94G04oe4AQPGvc?= =?us-ascii?Q?waswEssVCDLzOXXGBjnfDccoBOLkZRA0DEPqzAhMdprNsj09EWthaUzsLqqp?= =?us-ascii?Q?AkPXFQThH8r1Vb0f/4fo7SkmykSeN+7FSPbXNHTpFel9LUVlc5/Kfg2BqfQH?= =?us-ascii?Q?erjBOEpbA4/1by8u804TgZ3qhjtwpbVia04ZrhYniD7/wkDYWQ6zawn5803+?= =?us-ascii?Q?FteRUY2w7FmDU69xpDJbp5hKn10o9aPwW6EnXiPe45AwXn+DpeaDkFcL6S28?= =?us-ascii?Q?lGrjnDWAYmGqzrdQOR9UKoy5gy/nbm9cj6J5uEFoCkcFR4UvPv8LHmzjlqFe?= =?us-ascii?Q?oWsPsBHvAMOtwWpDITC7J8CSa7kAXAJ6gTJr8MbWPc64ZcC6St945q03GxvP?= =?us-ascii?Q?t91mpF6MWdTM7p7wMsHNOFPFKlsU6tLY7McTCxV45huQ4fnkFsum2cUGLNiz?= =?us-ascii?Q?MVZOHV30zWLF5QWJoJPIeVPQt1LeAEqL6uQNdW/h7IGliz61s7WcwJdXVd4/?= =?us-ascii?Q?9FUGvkOzwI6q7Mbx9Rpx+O/ZKUfaq4ww80ESVy1K72zzHV3OUSpN/rhuFN9T?= =?us-ascii?Q?O4IjBIahJAuRlGv9aH4TQFcF51OrAPK3Nt1pqc3s/uFWGipDZoM8whcsGy/h?= =?us-ascii?Q?cB0aQV9X5MT5SDVwEypPrqHOCvXIu+0VECNRYiEShomdPhMEuAF7fnpcr0Kp?= =?us-ascii?Q?Qc5hWQssPc/lHTi8mw7ripcDsMxqsV/XBmZICkIUXkKpxHIo/IAK/eEWSmqg?= =?us-ascii?Q?spzTxSYrLOHQ24eUjnGOO5FvEHQzjlETRnDsw8ZAY6HhMiJnMBbOHt3cj2J+?= =?us-ascii?Q?G9Af1yFPVX1y9KCt8vfFN/BG155VexQAaUk/mNpUwQs+8tCrj1SBtzdxK2uh?= =?us-ascii?Q?8VW18tvHElNrPzaybEvrQ0+3y8u5Yf2RhdOfMK1yuBjFJKoCttNDRFzjFDtq?= =?us-ascii?Q?/ETZCwy7hc+frqjKhPz3RzNalWTPmiT0n4ejb8pwazzAJwx8aUthFxXcWPEa?= =?us-ascii?Q?rkg9SSCFsc231XTw7unSFO8uH3D19RkK06g32cV/fxspz0wl7j9SkIqqXW07?= =?us-ascii?Q?huy0KB+B+ac/3y72PEzsoI=3D?= X-Microsoft-Antispam-Message-Info: KQC8XbwyF62s0UMRXOAWdugnBO9Dw1YVogX2GV+osl3n3fxElA4TacoaNU/z+usAxlOcMpI0y9HM5yToea6gzHN3q8WmPLhDtrqOEtNPAyf9URX7RqyYtnp1gZbI70NJsVXvi8z1zrWkn+jwN3qDLLrBMxmGgPIZ2/UJVtfDYuJuVv7Q+b6BLMjgXgiNnPc/ X-Microsoft-Exchange-Diagnostics: 1; SN1PR12MB2366; 6:JB10cthvY6eTpjo/lbplEu0aiyXO6IH+8BS0bU4Jth5/5WURmLW2bUHTOoaAX8FPT62iXDTmeCzSyymfP3Cf+EvyTWAYHheZCiLvmnOeOm31puB5KpqxygOo7cszk9lP+GxGQPn7mA/ivuoD0Krb4JkuPgLd7PBlaBimYOzdd6cfrWd6iteWNF4wVmkrTJS87mneALrF23IwyQszqWKIUH7OgQNhTZzjcvwW47WPan1orY/N5tWgC6B/4w7XBxb/cSDcS9APuMDFMqoWzQ9jiuykr7G2OqfBQSvsoDIlTqTL50m4VxBJJsG80AdQDq10Fanya8PKj5eeyvg1VCdljCavc5fPUFTEhreMduaTXEjA3WUrSlnMO9syH5XAPYQpAMNoQSs8TM3JvlukL9rBeELzgYyTGdk9hJG8DcJ0W+1ozR8xAe9+UDmXcSTamF8fjkZZxvoeNhjYMJaeD4MLBA==; 5:bB0mho5+r1VgISXJVZ53rl+m4zzj6eCe7YEjvBkMdvbognRE1Y346uPAtYyn/e0JZC0vh9s+8F6Ng3k1P7o2bkq45aPok8fkkYFhpZz9ObPBfNfSo5/nssbkdJlVzjX52VDMuLzjn4ud4VMShnT0c36J7XQqMPZLKmcSBzYdHgU=; 24:D4VSAAq9YqrEqO75cYFVo0qpmp08yQ1Cq6IR+PRw1qxnnD5qKpZDgA1Qhn/ntBJ+bm54sTNP9RQ3MrvJdmO3lDlQfnkSxZ71laoBxrkXGpQ= SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1; SN1PR12MB2366; 7:5peXr8jDihxVdtA2EYt808YhBkTSHqQgr00+SH/Kdbbd8n77WuxFlrH/ohw/zRec5Q9ylTgmkUHCvjxew5pzPfje+AhxuTEOSAbMEgd6YHSlXcWCErxCmKO2lFZbvqMY5QiFfe4eR4wthR4X64NHZt+ficYEk92p6knXwC9hhwTdIHF75BIDiVUmEmx/p/AnBuwihF1Na9Q63+Io/ESOBszMfKlP4zV1oS1KBNydEgHsWJ8op/RUtrQTaWaP47Py; 20:Wb1cs2JdTlqWdoxdqfBk65LEBf3CFNTsjuvcGpxUeW3mpmKsuhmqHPZGD3AT2KWg5Ov1XKOJkPA0mjon1Wmd7VYQdSfhr/G+cCYOB5+vDTA+oiLrHx0y3eV3B1dOquAw0L4kFi7LEt2vYOuMbY88wlpCiJ3VNt8yhLupS7D5kkYRbvBLhzts0AFuBsWzzR/Q2NTNKO+efq658Cx6bIi4PO7LsPnkbq8OGn/nuVet/Mb24Wt2Ns+/l5MQCEuLepc3 X-MS-Office365-Filtering-Correlation-Id: a345445b-26c3-43d9-dc09-08d5b1e1cfa8 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 May 2018 17:09:31.7969 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a345445b-26c3-43d9-dc09-08d5b1e1cfa8 X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR12MB2366 To: unlisted-recipients:; (no To-header on input) Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP AMD SoC exposes clock for general purpose use. The clock registration is done in clk-st driver. The MMIO mapping are passed on to the clock driver for accessing the registers. The misc clock handler will create MMIO mappings to access the clock registers and enable the clock driver to expose the clock for use of drivers which will connect to it. Signed-off-by: Akshu Agrawal --- v2: Submitted with dependent patch, removed unneeded kfree for devm_kzalloc drivers/acpi/acpi_apd.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index d553b00..88b8a3e 100644 --- a/drivers/acpi/acpi_apd.c +++ b/drivers/acpi/acpi_apd.c @@ -11,6 +11,7 @@ */ #include +#include #include #include #include @@ -72,6 +73,50 @@ static int acpi_apd_setup(struct apd_private_data *pdata) } #ifdef CONFIG_X86_AMD_PLATFORM_DEVICE + +static int misc_check_res(struct acpi_resource *ares, void *data) +{ + struct resource res; + + return !acpi_dev_resource_memory(ares, &res); +} + +static int st_misc_setup(struct apd_private_data *pdata) +{ + struct acpi_device *adev = pdata->adev; + struct platform_device *clkdev; + struct st_clk_data *clk_data; + struct resource_entry *rentry; + struct list_head resource_list; + int ret; + + clk_data = devm_kzalloc(&adev->dev, sizeof(*clk_data), GFP_KERNEL); + if (!clk_data) + return -ENOMEM; + + INIT_LIST_HEAD(&resource_list); + ret = acpi_dev_get_resources(adev, &resource_list, misc_check_res, + NULL); + if (ret < 0) + return -ENOMEM; + + list_for_each_entry(rentry, &resource_list, node) { + clk_data->base = ioremap(rentry->res->start, + resource_size(rentry->res)); + break; + } + + acpi_dev_free_resource_list(&resource_list); + + clkdev = platform_device_register_data(&adev->dev, "clk-st", + PLATFORM_DEVID_NONE, clk_data, + sizeof(*clk_data)); + if (IS_ERR(clkdev)) + return PTR_ERR(clkdev); + + return 0; +} + static const struct apd_device_desc cz_i2c_desc = { .setup = acpi_apd_setup, .fixed_clk_rate = 133000000, @@ -94,6 +139,10 @@ static int acpi_apd_setup(struct apd_private_data *pdata) .fixed_clk_rate = 48000000, .properties = uart_properties, }; + +static const struct apd_device_desc st_misc_desc = { + .setup = st_misc_setup, +}; #endif #ifdef CONFIG_ARM64 @@ -179,6 +228,7 @@ static int acpi_apd_create_device(struct acpi_device *adev, { "AMD0020", APD_ADDR(cz_uart_desc) }, { "AMDI0020", APD_ADDR(cz_uart_desc) }, { "AMD0030", }, + { "AMD0040", APD_ADDR(st_misc_desc)}, #endif #ifdef CONFIG_ARM64 { "APMC0D0F", APD_ADDR(xgene_i2c_desc) },