From patchwork Tue Nov 21 02:05:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 13462419 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=renesas.com header.i=@renesas.com header.b="K/8ebF+o" Received: from JPN01-TYC-obe.outbound.protection.outlook.com (mail-tycjpn01on2090.outbound.protection.outlook.com [40.107.114.90]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B104383; Mon, 20 Nov 2023 18:05:05 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=gtc3gtYI0i+7P4SVlJkFL+iLzDD8rpsxdMnK3o3NWx/xuUF1AVJ6Z31T390w1q+miW6eYfyb+MYL6Yb+C3QjS6ZJsby1rf2zO0eeLffwnXRhUYsyIklhWGT2CB/cYA5iE+EgmdLLmqD6+VUBjuHFtKIH4X3zgOSXwUqUPqguln1KTOiYMWLQj55WSThgarMgYnWWtXfQvMwxB1/VcQmCQIctdY8zro1w7lyWvm9AD3NOJAIpYBn1gfXxWBz3ZGnwvGAoj7IHEez8eq+2IxWeqTDPMn5QZCue+T11cHZkfKNyBNW1Un5HcetFHl6eUj9Y+jhHcwnkah6jqnG0tzwsNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=e9cF5k+ezGCgOXvewInMKdzIE1SL2+jkFO2jtJ9iHrw=; b=aOHfu1TWRvJghBla5DsJv+UrDBNkWpfF8vTCMwhqYXRrc1bJwVC3x4Y2iwJ9dAKRwGTPnf+ui/cXLVRay7uQLmst8xuWP8jvBT00ZWQ+S7TjWpFYWMlVnqNksFxkrabL3Yy99Kiie4kEvkNxwqEeO5bPZICkEag7a1b9zz9TVOGOJRdl9g9KOtRfbueGR3xTOoxylMcxPw9mAfxCQlyAPz1RGnYFLbyr/K0VBqb3G4e2JtasKHeW90jHtFBVWPScMssFyAtWZ0juyT6LQIHi5IJHId/jvHravaZMAYpHOXYqT2SP8gkphlf9iAky0u995yHWNSC2g01vS7pHXX8JcA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=renesas.com; dmarc=pass action=none header.from=renesas.com; dkim=pass header.d=renesas.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=renesas.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=e9cF5k+ezGCgOXvewInMKdzIE1SL2+jkFO2jtJ9iHrw=; b=K/8ebF+oeVnwXf6bvdgMsVMApLTWUR/FsrjAKov3KUEZB+u/bcOl8ObF94gYWpV7CGosONrvbHECUXm3jlDP2Z6ydccx5cOxvUOylWLexwvrSwhemMUueDHM9g1Etq2aNgu4ixq2l0AKDeFylWbkIkiQWrXTe1Ktanb4zRsxbC4= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=renesas.com; Received: from TYCPR01MB10914.jpnprd01.prod.outlook.com (2603:1096:400:3a9::11) by OSZPR01MB8610.jpnprd01.prod.outlook.com (2603:1096:604:18d::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7002.28; Tue, 21 Nov 2023 02:05:01 +0000 Received: from TYCPR01MB10914.jpnprd01.prod.outlook.com ([fe80::16b3:a84d:faa6:4846]) by TYCPR01MB10914.jpnprd01.prod.outlook.com ([fe80::16b3:a84d:faa6:4846%6]) with mapi id 15.20.7002.028; Tue, 21 Nov 2023 02:05:01 +0000 Message-ID: <87fs0zc14m.wl-kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto Subject: [PATCH v2 0/4] drivers: clk: renesas: ignore all clocks which is assinged to non Linux system User-Agent: Wanderlust/2.15.9 Emacs/27.1 Mule/6.0 To: Frank Rowand , Geert Uytterhoeven , Michael Turquette , Rob Herring , Stephen Boyd Cc: Rob Herring , devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Aymeric Aillet , Yusuke Goda Date: Tue, 21 Nov 2023 02:05:00 +0000 X-ClientProxiedBy: TYCP286CA0286.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:3c8::18) To TYCPR01MB10914.jpnprd01.prod.outlook.com (2603:1096:400:3a9::11) Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TYCPR01MB10914:EE_|OSZPR01MB8610:EE_ X-MS-Office365-Filtering-Correlation-Id: 1f41493b-847f-44d4-3a09-08dbea3644ee X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 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:TYCPR01MB10914.jpnprd01.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(136003)(346002)(366004)(376002)(396003)(39860400002)(230922051799003)(64100799003)(451199024)(1800799012)(186009)(2906002)(4326008)(8676002)(8936002)(86362001)(7416002)(5660300002)(38350700005)(41300700001)(36756003)(26005)(83380400001)(52116002)(6512007)(6506007)(2616005)(107886003)(38100700002)(316002)(66476007)(54906003)(66556008)(66946007)(478600001)(110136005)(966005)(6486002);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1f41493b-847f-44d4-3a09-08dbea3644ee X-MS-Exchange-CrossTenant-AuthSource: TYCPR01MB10914.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Nov 2023 02:05:01.1074 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 53d82571-da19-47e4-9cb4-625a166a4a2a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: CZnBYays8+gdJE+rifDFTjtprGz6wX7myGHc4RKlqk7ByUUcolFKracBjsiGvFoxtS99uvuvNoQIdeSYeTftz+rfDmAx7iul99aJv+LFjQCfSLHIeKaHkmy8glUBwzuA X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSZPR01MB8610 Hi Rob, Geert Cc Aymeric, Goda-san This is v2 of ignoring non Linux system assinged device. Some board might use Linux and another OS in the same time. In such case, current Linux will stop necessary module clock when booting which is not used on Linux side, but is used on another OS side. To avoid such situation, this patch-set try to find status = "reserved" devices, and add CLK_IGNORE_UNUSED flag to its clock. Table 2.4: Values for status property https://github.com/devicetree-org/devicetree-specification/releases/download/v0.4/devicetree-specification-v0.4.pdf "reserved" Indicates that the device is operational, but should not be used. Typically this is used for devices that are controlled by another software component, such as platform firmware. [1/4] - [3/4] : expand existing function for "reserved" [4/4] : adjust to "reserved" device on Renesas CPG Kuninori Morimoto (4): of: add __of_device_is_status() and makes more generic status check of: add __of_get_next_status_child() and makes more generic of_get_next of: add for_each_reserved_child_of_node() drivers: clk: renesas: ignore all clocks which is assinged to non Linux system v1 -> v2 - remove "default_ret" from __of_device_is_status() - add new parameter explanation on cpg_mssr_priv drivers/clk/renesas/renesas-cpg-mssr.c | 118 +++++++++++++++++++++++-- drivers/of/base.c | 111 ++++++++++++++++------- include/linux/of.h | 11 +++ 3 files changed, 201 insertions(+), 39 deletions(-)