From patchwork Fri May 4 17:07:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akshu Agrawal X-Patchwork-Id: 10381099 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 437F260159 for ; Fri, 4 May 2018 17:10:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2C4F82945F for ; Fri, 4 May 2018 17:10:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1E60729471; Fri, 4 May 2018 17:10:12 +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 5312B2945F for ; Fri, 4 May 2018 17:10:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751791AbeEDRJj (ORCPT ); Fri, 4 May 2018 13:09:39 -0400 Received: from mail-sn1nam02on0074.outbound.protection.outlook.com ([104.47.36.74]:3264 "EHLO NAM02-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751425AbeEDRJd (ORCPT ); Fri, 4 May 2018 13:09:33 -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=25kqEfH/3Fk8vkUVlRNdTslLqfcr0muVUIcqaK6kMRw=; b=130jrLDOgfSbXgKchAdG9x47qFjZ0deKzRWqWxArMghre7RuG/VhP4qQuqdRy6s1wwc1VV0mC+TTrX+E3dBrH/7v6AACL9r0MWrtaekup8aKuTNBLBE5zs4nDmXNoMcRZkP9CKcRHN5nZ0zWzZpLkHnLfRVusV1yL7YxvJ9fxZQ= 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 17:09:27 +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 v3 1/2] clk: x86: Add ST oscout platform clock Date: Sat, 5 May 2018 01:07:18 +0800 Message-Id: <1525453639-30575-2-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:XSmsPpcPHeoCfpocsKunjHTqYXeeB6LrBq1DILN1z+Rz1SAFx/USbHHRrZXAKX871IqO+av8FMEcm2VCZoU0zdG0K8SbR7GTNXad6xFQ2Sk17ZrB+6kS2pFSgcArnGF1Hu4tpnUBGjozYwuk/kc+1UvWuFf4sfpA7EMKE8Cnz7s/W5S9PDJMT3Wgks2g6GQalqq62UGUDhPvMg97mz3/sP9jitwrmmli4sDbya3lseqsS96ZfVre44bqC6M4GHvk; 25:fW75CycXUbzf14a/yw1+y9Iup4PuNNI1Ds1A32n/PukzgQbgzSYAOVsslwv18ZrGxQb+7s/l6q64BUCKTkYz8HZTeXuSACwIOXRJoflT8ASM7dr99SWZIzWNNydhwisX2UkWt79m9gmHyx0v4Ury1NFj/rOpczjtRKcu6BGwF4IaiUocCIsC7bS0h7NAjgmS00uRfvFapCMiU/fD5L1H0AOhnw19XvTYT861YdKMQSgTLdlMIrQOxXHMjC5ahY55b9/Y7+B5DSGjEd5h5s80YDmAudbyoM8njInXF6yvxS8xjYcjtBzMOckv0kRKFPbhzZLzUmnLLifMSbscLYp/ug==; 31:Zgok79hOv1fQ9pK/EEb6+9LWnpuBco2yUj0nthMqTwkJc3LteZqZulYltBISt8og+Vio3BVK5VGHCtq5XQ9f8aA6gE/JOTml3FBCLgM3o4u2iHP/saUnpcnTdH/+EozQsZ9zHbDDCdidjHkbPqOUCyCNN2VI7yxBDgjR4WcfzIjp7hgMk/XsUW0zwgf9OsLE9OZ0YzHy+FIN/hbihyKbkMPKJjNti4EO1wJPuw2eyrA= X-MS-TrafficTypeDiagnostic: SN1PR12MB2366: X-Microsoft-Exchange-Diagnostics: 1; SN1PR12MB2366; 20: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; 4:9/tE/vAcN+LrThr6P/1GNiYwcXSeQ6WrlZohSkoK4pLtB/BRD0rWFhOYdyiUDCLN301pcDCQQrQcWWb3iTJlbiZT4OeIyEbOpwC4OCC9jYieSJPE01FTwvfLxlU0Tbsc8Fb6oNk/F5DGBtNmtDloPrOKBVrM46oBQZKio5SeP6cItH1hP03mC+sQvETlIc9DSA1NCrOVNGcOwvdOzB4Y+2UKmTyEhPYWW8ps2nbMGQwUQwckhf1VHh1FtM/O7oHNIj/fBDnnTG3IuZ59DKEdHW4bkneV589qexNdvAWTEyDDRQTXS7WoCFSItljIFdq9 X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:(767451399110); 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)(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:NLq9TOQByVcYFSaa96+pI4oT7mouoKuqGrtwrb4P6?= =?us-ascii?Q?4nwF5GgGvjWCyFMtpiUS0TVzWcXGPQS/uBJAPv4g6uKr6wGIwxCFnIz24Vyy?= =?us-ascii?Q?b6ijNIp5pDMZvVnbB4WB8pXhGHls3KUx9iCTGx6x0BXsgzrnk/GYXzabdGNr?= =?us-ascii?Q?ryGCiAfyWMM2AGm9ChAs5grVsKNoTPp/h2crUE7c9MQmATxNYe0Mr3FF62L6?= =?us-ascii?Q?Ls9Hbu76sbZpWHP93u8pGf+kPSACvy5WkHg6ibsJjNLJOaw3++bGyF4D9jGQ?= =?us-ascii?Q?ZrEODNRRvEV6veAiswPt7iRIq4kPQT7KP3Q4xfc80duZInMZ/0l8dXp+g/y4?= =?us-ascii?Q?z42B2nP7WYYeTiiGLI52g9TrvzZd93tIFAZuH+IjJPrQwueAGnh3kPN51nMW?= =?us-ascii?Q?Ql41umbdSWExPAZLpLKDlaoVMhHcf+6s2yEWB2AOFTJPg0pvEm/q7xg0rvpO?= =?us-ascii?Q?d0x+QXmy7Q8b7engsTijSiu4Jah5XsWKX+41iq6EE/fsYVYVlOHduE1zMntC?= =?us-ascii?Q?2uBmk4O63mVLeS67lGy00HIwRku4Bsi5yX4Q3/bq8UDq0PvQhPRIYf8ZAUZA?= =?us-ascii?Q?CpRO62Gp4D2iYk0s7mcX2dIzuTNEE3iX8bjtO0MRCTInOhhpOBmHSagTcsfO?= =?us-ascii?Q?EXg4JcbJpazQS2RBr2udelPRqbgQUapfhECesvVDqQcyibjQCGW3UIMU7wV1?= =?us-ascii?Q?S8yGl4S2Tv4cjp81wCxgqCUJqnYUUwlfHOTR/unsTlDVrJeSKNGjgkBPy1D2?= =?us-ascii?Q?QCZ+x/QPv3eryaPe5NqtpYCvh5NYC7wDq7HuMYO/rNC1w24QE0eRKn5Yr+4Q?= =?us-ascii?Q?3pF9Pdb0h4b1u0um/cxU+UwFZNAR0DY+qX4843vBEssLFSVNrHARG/PaT9ee?= =?us-ascii?Q?4n5UJFpx3AgvmcQ6a/xbmk4Eg0bKfoSWx5Hu8/qa0RksBuXZAN9OfQI706k7?= =?us-ascii?Q?o+93FSjbtjCxC5KLzlvYJP+tkgTcNTZmJsdyOGL1kYFPcoWVrfF4hHQZN67v?= =?us-ascii?Q?JnZ3cgq4ABFx5NOatdI3pz9A/+1EV9fDhMYEXAMFyybOBRn3kfIDk8AuNkXQ?= =?us-ascii?Q?oibVRuW/cMufiAeNymbvJ16bd8QoAr+FX60YPM3mXHoPjfKe7SYzKyx0/vTP?= =?us-ascii?Q?rYJ7tH8mH7Sgv78Ktdum9aHUF2PRchKDItgFcSUSzw/eX7myu+1MiSvbXbSb?= =?us-ascii?Q?gu6IiTe/F0GK8GVzbzxOwmLMo8PvQhVfJk13sGUVmiEMXsf52CXAOVgsxm+n?= =?us-ascii?Q?Tgw7xWOJVGecAqxNtqmo3qnX22lRhQmTepcBbMB8ThgDsGSfsSY1atFqXlcC?= =?us-ascii?B?dz09?= X-Microsoft-Antispam-Message-Info: J5+IbFswVWsaWv+Tytr9CM2/gMoKnLycmDG7ALZgf6DjgAPcQnyFP+CMDA8VjgTq/phed724UY4wvxyJZli09jOYs0RIM0544TI+DhgWyargt2L+Od06aGa7hjOkZoFKcdh7LwyhhNxO3dz1fqmBVuOLbuA8vM2KabH9BrARYBcaI0fUEnBIdsbFhxg5ou4X X-Microsoft-Exchange-Diagnostics: 1; SN1PR12MB2366; 6:BJWpv7oLDthMCq27SjsMgIHnztU3E33Gj44BAX2S9qGve6cC+oH1g8t0IqvTkvStWwFKw5yuwXJKFv5Szke+9hIdpK0onFoqrUH+xFX20jNCLPYLGmFqiOUEaX14jb2gOVyzA3lNttpFMltxdKB0pWd5N3MGr/Dd+elay4YfuUpdKdNfN7HOFtUpy07B/CcSjq1ktZPGv5qGmZ9030zkRJrOKLsqik50HAx3FBhWO36Xjh7e6z74yJxmH63XX6PeWIU95rg2PJKZGT7xYUowHyDxJi/6SVbbJxXFp3X22w4fOTPDYsToiyDHDtjpGMHOpg5f4DLyNGzjYNPSXUjWMrEAgzp55ZobpQXH+VpUEFBGz4kqb+WaBzP60WFIenzhoHg8oDeHo2W1U6qkHEHxY59majbwSpaybb0pOhWUvCHELEt//zyMF/pM31GwOBbizMp2U1exQehce+OOztm1CQ==; 5:NfFPeNTJWNXM80toVvILqsBVwJQPZIFVkG91kqaSjKCCp/V9Gpi4lD3gGrSdFSDy5B+vUgYA/BMhMEf2nMfddFC123D9iVmFYgqHbqKcXwpZKSI0ALej+wxd+BYr3YE8OirUm34b4+IhWAz25IIqKPP0JWIxCgL6q8NU1Khf0/w=; 24:+WeGqIAHFfSiFJ8FlSIbhdu9ZVo8bCvAWIS+u1ygWsBVVW3atVAkXPUUIivgY4IiYTn9tsh8oG5d5ORRXjoks9HwVipHZiu30Y/KOMESLI8= SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1; SN1PR12MB2366; 7:2bTcG7POFb75ElNQUeZV9XnUQ70E9679JaXZKU/ke2BLV5DyS6XUtSikz8H6Bxp+RNIKb/8KlUs+WYQauj30ik2KCfcZADTRWdAtCf77lar3eQFw1nwzXohEwbJSW0GMVHbMcig2zI0Xagks7O8RLjV5i84Mc9GCp1hJq1sw3kntvTlKc1NYPRb4x9PYSfL+Y6IjksiYUQxNa/QUbgkTeXrjlqA25d3WebDsnSBpQXX0KsmocONmjdZP/sfQYuYT; 20:yhW/qIwU8v1Omr2KBBtH2LTXCDG7dH1HK4CSpu398/M/RPNJXmcN2PqnSCgNEPcqeDFwL1dRpLsRrIlgHjznLNzFHkEejvMQHcJefLIHQo+2eo22rqHG24YaJvyl9vsYkFisSgDKzz1jZsfVUS8A9XTMe+KfrfIg9O94uEvYU2aoOxJ+Pps7n8889JPWSy84Sc9POjyXHJPYEsp9SjC88kZ4BvdhQ9+2hIilQPeo+E9yE1e1t75HYXbGGVSoQPyH X-MS-Office365-Filtering-Correlation-Id: fa231617-b849-4b0f-6baf-08d5b1e1cd33 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 May 2018 17:09:27.6562 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fa231617-b849-4b0f-6baf-08d5b1e1cd33 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-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Stoney SoC provides oscout clock. This clock can support 25Mhz and 48Mhz of frequency. The clock is available for general system use. Signed-off-by: Akshu Agrawal --- v2: config change, added SPDX tag and used clk_hw_register_. v3: Fix kbuild warning for checking of NULL pointer drivers/clk/x86/Makefile | 1 + drivers/clk/x86/clk-st.c | 88 ++++++++++++++++++++++++++++++++++++ include/linux/platform_data/clk-st.h | 35 ++++++++++++++ 3 files changed, 124 insertions(+) create mode 100644 drivers/clk/x86/clk-st.c create mode 100644 include/linux/platform_data/clk-st.h diff --git a/drivers/clk/x86/Makefile b/drivers/clk/x86/Makefile index 1367afb..2aee002 100644 --- a/drivers/clk/x86/Makefile +++ b/drivers/clk/x86/Makefile @@ -1,3 +1,4 @@ clk-x86-lpss-objs := clk-lpt.o obj-$(CONFIG_X86_INTEL_LPSS) += clk-x86-lpss.o obj-$(CONFIG_PMC_ATOM) += clk-pmc-atom.o +obj-$(CONFIG_X86_AMD_PLATFORM_DEVICE) += clk-st.o diff --git a/drivers/clk/x86/clk-st.c b/drivers/clk/x86/clk-st.c new file mode 100644 index 0000000..c3d5b84 --- /dev/null +++ b/drivers/clk/x86/clk-st.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * clock framework for AMD Stoney based clocks + * + * Copyright 2018 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include +#include +#include + +/* Clock Driving Strength 2 register */ +#define CLKDRVSTR2 0x28 +/* Clock Control 1 register */ +#define MISCCLKCNTL1 0x40 +/* Auxiliary clock1 enable bit */ +#define OSCCLKENB 2 +/* 25Mhz auxiliary output clock freq bit */ +#define OSCOUT1CLK25MHZ 16 + +#define ST_CLK_48M 0 +#define ST_CLK_25M 1 +#define ST_CLK_MUX 2 +#define ST_CLK_GATE 3 +#define ST_MAX_CLKS 4 + +static const char * const clk_oscout1_parents[] = { "clk48MHz", "clk25MHz" }; + +static int st_clk_probe(struct platform_device *pdev) +{ + struct st_clk_data *st_data; + struct clk_hw **hws; + + st_data = dev_get_platdata(&pdev->dev); + if (!st_data || !st_data->base) + return -EINVAL; + + hws = kzalloc(sizeof(*hws) * ST_MAX_CLKS, GFP_KERNEL); + if (!hws) + return -ENOMEM; + + hws[ST_CLK_48M] = clk_hw_register_fixed_rate(NULL, "clk48MHz", NULL, 0, + 48000000); + hws[ST_CLK_25M] = clk_hw_register_fixed_rate(NULL, "clk25MHz", NULL, 0, + 25000000); + + hws[ST_CLK_MUX] = clk_hw_register_mux(NULL, "oscout1_mux", + clk_oscout1_parents, ARRAY_SIZE(clk_oscout1_parents), + 0, st_data->base + CLKDRVSTR2, OSCOUT1CLK25MHZ, 3, 0, NULL); + + clk_set_parent(hws[ST_CLK_MUX]->clk, hws[ST_CLK_25M]->clk); + + hws[ST_CLK_GATE] = clk_hw_register_gate(NULL, "oscout1", "oscout1_mux", + 0, st_data->base + MISCCLKCNTL1, OSCCLKENB, + CLK_GATE_SET_TO_DISABLE, NULL); + + clk_hw_register_clkdev(hws[ST_CLK_GATE], "oscout1", NULL); + + return 0; +} + +static struct platform_driver st_clk_driver = { + .driver = { + .name = "clk-st", + }, + .probe = st_clk_probe, +}; +builtin_platform_driver(st_clk_driver); diff --git a/include/linux/platform_data/clk-st.h b/include/linux/platform_data/clk-st.h new file mode 100644 index 0000000..6a992e9 --- /dev/null +++ b/include/linux/platform_data/clk-st.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * clock framework for AMD Stoney based clock + * + * Copyright 2018 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef __CLK_ST_H +#define __CLK_ST_H + +#include + +struct st_clk_data { + void __iomem *base; +}; + +#endif /* __CLK_ST_H */