From nobody Sun Oct 5 12:52:25 2025 Received: from MRWPR03CU001.outbound.protection.outlook.com (mail-francesouthazon11011001.outbound.protection.outlook.com [40.107.130.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C9829266EF1; Mon, 4 Aug 2025 13:15:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.130.1 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754313322; cv=fail; b=VbjZbSm7bp+PiQFJPwS5fFpan0+xFSjTFHjdFyEnx9JejbCTlTFdeJn17JSI9bpkYTeG29JKBxozqIXvN9y2Rsu+ztiJT6RZC99ubnAgKfU4IVpOrxEAnHyPuZzOZlazLlPjk1xWzvqNf5lpNPKOqMz21NXZSngquGYZ6JqFgEw= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754313322; c=relaxed/simple; bh=BqSzMD0907AGpbFXdm+VnqzTWz1LqIriVI4TMdWJDwM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=d2Oo0IGiCJ8PUSOuaQgO7mqhj1SmxAGgTErQvWJuI3TUH+7pELKhu40ZxEqANgCbOQOX06WJB+rI33BIFprhXWBzpweD6YuOCOK7UmACI+E9eGVoXN69NYLAAP7HGC3M9InPRhxXMA5Iaf59aFyFMAeIp2e/a8/eiptwPCkz8ks= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com; spf=pass smtp.mailfrom=oss.nxp.com; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b=f+oZFbsr; arc=fail smtp.client-ip=40.107.130.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="f+oZFbsr" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=ix8ueA/lw8y4zDFf5xm7bMLSCsqBxwUVQjxw8U/6pK5dmUFe+98iwP+nNcLsS/FNCfGYmZ/bsHksHCKMa1x+RrZdiPQsZddi7SvR5kKwyFZYJo3maeYwKdQf07ZJUc3L4/geuqRbymjtzFZdEsBlkItLrWPSoOxsX/NgPpQ82Eg7XyPU328iEoL/dPD+SWW6FXyaglVUqWIJPixZF/otR7uBUUZUP1B5l3FD5ES1rI+pZbi4b+aJVJHpyb1X2yaEae+oSUDmXhhk1+urv8e41xczgsye8kfy4He0ljflC80VwDPtuJyThuIIMvys8b1d8G7OnCrlAAL09fj9wBmF6A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=X5/h17PUjNI9mey/DhpLhEtaIqbvYTS+yqLR3NNqI8I=; b=Xovbt2WlNb1mMdNcQhgS7/jaJXOiElEo8+mK6dcboHsC2YuI9RLYggV/saMKovleBIZhJmTe2x+n2Y/sqsysXuTi0QT52HkK+YtemhuDzFnpKRnvTzjKAKdTW0EpR45rrVuKBZCgKO52WFOXogYcBHieydbmErfP2rFLrxr3qIrY9mXKFC50QgwfYL5/BWPuAkfIUe81m0qlVYAWjqBgp2de5J8auwtj76Cgq5z+ePDo1iLmVVI0uiuHXTun4DrnVXiiVKe3PQl+3Au62oKqjp3fV9owteNcLMZY3TleqiJbRiWOeRqYgzXBLzquCZyM26neFSsjfE2z98a3mDoleg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector1-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=X5/h17PUjNI9mey/DhpLhEtaIqbvYTS+yqLR3NNqI8I=; b=f+oZFbsrAdpKwdRj94HlxKIr6IVP7OsyOKKU0jsURmQnto94PaPs/905CX3jbF2MCVOTyDgqFS3A1nTAWHtg8ckUqHVLKu5A80Vl7jSuAu0HyfVhxTMguAPSYAyFJU9AtFq26aHhsWjIGEErQjNwfgqkhecrIz+bJmKkDfBhlWPFxAG1+SigFVGimehu3TGKcFR9u9gnMu9lrYI5K3aT8vuXAJHdFkFOYSpFFR2KjMYuJGVdlhS9f81uZdpPDnmjMBRBwrOL4XjXk0Rq+GUl8gX1/4iXwO4dXXPGBjfxMPksuR03nbc6R4TLyGhqBTnmvYkoSOGjfFMD7vpdLSbtcg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from GV1PR04MB9135.eurprd04.prod.outlook.com (2603:10a6:150:26::19) by GV1PR04MB10349.eurprd04.prod.outlook.com (2603:10a6:150:1c6::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8989.20; Mon, 4 Aug 2025 13:15:14 +0000 Received: from GV1PR04MB9135.eurprd04.prod.outlook.com ([fe80::b1f6:475e:de5d:8442]) by GV1PR04MB9135.eurprd04.prod.outlook.com ([fe80::b1f6:475e:de5d:8442%5]) with mapi id 15.20.8989.018; Mon, 4 Aug 2025 13:15:14 +0000 From: Laurentiu Palcu To: Abel Vesa , Peng Fan , Michael Turquette , Stephen Boyd , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: frank.li@nxp.com, Laurentiu Palcu , linux-clk@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] clk: imx95-blk-ctl: Save platform data in imx95_blk_ctl structure Date: Mon, 4 Aug 2025 16:14:49 +0300 Message-Id: <20250804131450.3918846-2-laurentiu.palcu@oss.nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250804131450.3918846-1-laurentiu.palcu@oss.nxp.com> References: <20250804131450.3918846-1-laurentiu.palcu@oss.nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: AS4PR10CA0015.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:20b:5dc::11) To GV1PR04MB9135.eurprd04.prod.outlook.com (2603:10a6:150:26::19) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: GV1PR04MB9135:EE_|GV1PR04MB10349:EE_ X-MS-Office365-Filtering-Correlation-Id: e0ea3e46-0d59-4bab-9c80-08ddd358f2e2 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|19092799006|366016|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?29J603uIn/CIn9/SFOoWyaO4HSt9L7VcGZFdcp2TPTNMEnGAfENtg5XCuff6?= =?us-ascii?Q?7Nto2DTobjlL6OgUkcS474XIalTupPrnfQJ3/lU255xWumVeSyqM8AEo+1mm?= =?us-ascii?Q?yyc6M8qlMPj3sOfqpzOlIR7nKZFwBV8nXRcGvrjJJVqcPsVh3Yx2PDSZafMI?= =?us-ascii?Q?kKrXx097Nc6MPuZKUTZjzhgzx7MiHwmWCIcWPmM8t9GETV7YBgHxa6jcYU6W?= =?us-ascii?Q?oloUZ6AAjlIHu3r6Z3yYm/XHuyRx4AyNGAlYu2fyZszQLMWSRLtEcjk74U70?= =?us-ascii?Q?dHkgTosf78rRpquVpSxhqy47EMkxIVYKUuuIxYb5TpOTZrPQx09hAcbk/afQ?= =?us-ascii?Q?eMgE4M2Gy4HQrG+TPqUN+Hu9TZ+16Sq8LgXRSweUKzqaLOh1Q+989QDD0Uex?= =?us-ascii?Q?B4Hr0ExYof9GL/ce2jkYo1BpqEpIRHGfF6xFU0HSAEjE2NFvLQaeHT09ck+t?= =?us-ascii?Q?JBGdtP2Ke+Lv9SlAq2sgUF8rfFcsbpVMckHifQHixsELmiweMArO0c4HkdCn?= =?us-ascii?Q?b/dQhE1kvWzuYkItKMg5rnEX1yVHfkBtWarkRqFXjDNGo1uYMNJ+Qp9HVfPv?= =?us-ascii?Q?NL/knrejV5Nyi8AK6wQudG5moU9/q4by20iZ36Z4tOvBbNKfkjY8tnszcSZg?= =?us-ascii?Q?bjcc0GiG4I7cScA3MsR/ic7qSHFE+xsnqt2C9+ZDwWZyD04hG1rySFNVg35M?= =?us-ascii?Q?bDUNAI4JoD//O5+BxSE6FdASoTUam8rz0k+iEkoLEkDqL/jg4ZK3zBuIspZN?= =?us-ascii?Q?EPIz43+0y3oiKaZbr1fouipDEQ6qd5GtlXXF/3d83c8FgPUaOmBFxQpBPFAa?= =?us-ascii?Q?gRPVlMNDP9XfKUJ9StnIa7oEKOe1q2LBJ4AJWTuQv9sK2OTNm7Vynjzs+a2Q?= =?us-ascii?Q?avhnyMGvkJ72giO572Qvzip5SoDwZgiyaLB/YRI/PIftkDPzYH4HqcFz7GHJ?= =?us-ascii?Q?MspDd/rYysjPrWXLZbOxLraBETvjVGLuH4bo1ufbUUFcf3OA+xFyATLcs62J?= =?us-ascii?Q?TdBTtfypbn7tAzti79AAlUJBrFAJaHFUDVTIy4bFd97NA15cnoDPQV/MCojM?= =?us-ascii?Q?sR0KOsvcC7oZ84tOnZfccZdCk9OnoEN0Fp9EQu35NWhWOPbBcxjR+mn+VQRo?= =?us-ascii?Q?rEeiK9ZQiZKp9XLUa+CLtN0PXlaAlvA38MJanIF3sJnODCS8Mha1gtEVSdMA?= =?us-ascii?Q?f8u9iHl39R83BPkqlOsOFNsZQFO6AG3BRbjddPC9Gpb9Lnqng8s8nGpuuL5M?= =?us-ascii?Q?qmwe7aro+b99ikziS+Lvn6D8/r+Sg9AznAtpUXF39Zakd2LKYwKKxXa+NPBM?= =?us-ascii?Q?VtJJnIhX3A+Woskre0zyjn6lAZbWdtQVVArLjGmrDuhj8Gaxp7vD3Kef76si?= =?us-ascii?Q?z79Slejm5Ai0oruYaVCIvyswkxi7YlNwZiyEkyhE+zdASsMca+zTfxi1Ux3G?= =?us-ascii?Q?5sHv1Zg5hvY=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:GV1PR04MB9135.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(7416014)(376014)(19092799006)(366016)(1800799024);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?DR/7pR4A65q+queJ8YPxRGzi6T5WIBa5CyK2qwPQylH5M4rDWI/AUmLSw7Tz?= =?us-ascii?Q?KdDT92dTLUYa8Mq2bROR0TyW8MmUrszctNdXTGQzXJIZvW6XFHGqXXfFfHpx?= =?us-ascii?Q?1poCQCGk6bEnkGr2fm63JV1q6bs+RTOZfSIUmT2dUDdYPGedkURqXsrqxXZC?= =?us-ascii?Q?FFR2o1ydVqaDseGfjEqDmsj1x18RGbgQq0IYpHI2OFjjTznRROKHQAPCND9W?= =?us-ascii?Q?SIA4UdUVtqChAOO+H/jpfBRS1bGlKMydaTpWDefwyW3t4ryjMxkHtii/lr94?= =?us-ascii?Q?fV7THXdpgFcr28ZO9f+7Wrm0vI8JyMEcJ3efjZEYoZZBavxQbQ05w95y+Z7+?= =?us-ascii?Q?OjW+2XfsfNafPMVO3DuBWjzj+u4iC02ZjUxG4/Fdy8LIwERB/d2JQvz2yvNC?= =?us-ascii?Q?KWjCcBviorFrfFJ0z67HpS4sDPIO/40olzIbKyWNTO0wBCcaXhwnqDvHQ5Ai?= =?us-ascii?Q?dmxzX5JWONSpMIrxnoeOh1oivpzP/p3JCrHit7jclc+m/I5cO1esLpOwRRNu?= =?us-ascii?Q?wWGv7lLyG2aHw/5JyGJHA4TSNnjIkq17GVUa2H6KVhK+ONg7HjSfFCxUusNp?= =?us-ascii?Q?Go3Dl8fqWochr+I2X+yorcMa12aCj2taTdltIgfzsDBcIpgKJYuRZu1z1HLK?= =?us-ascii?Q?BMzsIltDfiBHZ2Qay2pfJL4K8dz0rrrPVUSseOYdRO3XXz+Z3ULVmlmm2Bao?= =?us-ascii?Q?XA6J9uCRRqK4bINW3FJn4y4aKyFFK3QEv1KLzZZah+9V4/8oqNLIUH6l5ePF?= =?us-ascii?Q?L8kTP8ENlXDhsbuTclEUtMlgPrNR0HP45vFzq7T+1QAoYkxS/hxPTV7J74bL?= =?us-ascii?Q?UKznP8TCBxqlHkdDyPid7ArsMHhvyqK4e0a6vf4XPyggNgFisb92V5XPu2PV?= =?us-ascii?Q?pT0xt0BU8jhwaNEcYALu7nhdZ28Q9js5MnlPk0Pou+K5FeHKrAhVMD/caY/Y?= =?us-ascii?Q?UhmTqrd/bhIwpFlrpqcpDclHhFC+EsR9VRx2H9nbfuXjAwEf4HSm7DXyZLa5?= =?us-ascii?Q?QnTSbxfjUbOu4ZyHhq2MTnfXQyPzWCtOm2oRD6SwWOHK/QLeUcdVVez/SvGT?= =?us-ascii?Q?wXUmUaTbqN0VvcUYhDq5FJwZUqaYhNwWZ8qvIytoVEBiG1gTpJZ1cwd1PfYL?= =?us-ascii?Q?trDUgQlpvwhclyQgJ1cP0joRJDGLRnqp9A8JItr0BCQQfT2jSpDvyFRMi7/M?= =?us-ascii?Q?Ea6M58QK+7EzuIWmxdn5eGSXYzTabPeHggdgXPCeuAnM57qvApVLDTRjcNXQ?= =?us-ascii?Q?FklBPouFSxVahc9QVMTn4bEVqiDsbTNxPjIMwpXh+lB5UoCm/fVqfJ+FAYue?= =?us-ascii?Q?LcYA2UnF7rmkJyryS/8Xp8P2TVLwcBVar9wIYLquYQ7NHGlIPqbYNYXNVJh8?= =?us-ascii?Q?xy9QFFJz+b2QBSew7gi8dz53MTdPRqQv6g3CSaJzE2fSb959omxPrnIUBRrp?= =?us-ascii?Q?rLnwnw3C7w2gZnUNZZV0zcsrQYncDlArMo60/6pNbXC/xjjV0tqnr7fSEptO?= =?us-ascii?Q?CIS9RkdEdM2X9EVloWUol4JBr+Eplzk4IzlEavOUSnsG+CBrvHeoTU6NB2Of?= =?us-ascii?Q?qdWPAwGrXRqelC03dn4OOmq+VorjJmV+i49ZnV+jpWXVQlG8W0HnJXLaZQax?= =?us-ascii?Q?Yw=3D=3D?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: e0ea3e46-0d59-4bab-9c80-08ddd358f2e2 X-MS-Exchange-CrossTenant-AuthSource: GV1PR04MB9135.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Aug 2025 13:15:14.4322 (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: HbIZlVVz6ScxAxEq0lGMFOQC02pYPVaiiqJzukDCZGHDD37KUyF1P2QaLx83lj4T4wQL1G6acLcVFozWsXC4Ng== X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV1PR04MB10349 Content-Type: text/plain; charset="utf-8" Add a platform data (pdata) member to struct imx95_blk_ctl to store the result of of_device_get_match_data() during probe to avoid redundant calls in suspend and resume functions. Signed-off-by: Laurentiu Palcu Reviewed-by: Frank Li Reviewed-by: Daniel Baluta --- drivers/clk/imx/clk-imx95-blk-ctl.c | 36 +++++++++++------------------ 1 file changed, 13 insertions(+), 23 deletions(-) diff --git a/drivers/clk/imx/clk-imx95-blk-ctl.c b/drivers/clk/imx/clk-imx9= 5-blk-ctl.c index 7e88877a62451..c72debaf3a60b 100644 --- a/drivers/clk/imx/clk-imx95-blk-ctl.c +++ b/drivers/clk/imx/clk-imx95-blk-ctl.c @@ -36,6 +36,7 @@ struct imx95_blk_ctl { void __iomem *base; /* clock gate register */ u32 clk_reg_restore; + const struct imx95_blk_ctl_dev_data *pdata; }; =20 struct imx95_blk_ctl_clk_dev_data { @@ -349,7 +350,6 @@ static const struct imx95_blk_ctl_dev_data imx94_dispmi= x_csr_dev_data =3D { static int imx95_bc_probe(struct platform_device *pdev) { struct device *dev =3D &pdev->dev; - const struct imx95_blk_ctl_dev_data *bc_data; struct imx95_blk_ctl *bc; struct clk_hw_onecell_data *clk_hw_data; struct clk_hw **hws; @@ -379,25 +379,25 @@ static int imx95_bc_probe(struct platform_device *pde= v) return ret; } =20 - bc_data =3D of_device_get_match_data(dev); - if (!bc_data) + bc->pdata =3D of_device_get_match_data(dev); + if (!bc->pdata) return devm_of_platform_populate(dev); =20 - clk_hw_data =3D devm_kzalloc(dev, struct_size(clk_hw_data, hws, bc_data->= num_clks), + clk_hw_data =3D devm_kzalloc(dev, struct_size(clk_hw_data, hws, bc->pdata= ->num_clks), GFP_KERNEL); if (!clk_hw_data) return -ENOMEM; =20 - if (bc_data->rpm_enabled) { + if (bc->pdata->rpm_enabled) { devm_pm_runtime_enable(&pdev->dev); pm_runtime_resume_and_get(&pdev->dev); } =20 - clk_hw_data->num =3D bc_data->num_clks; + clk_hw_data->num =3D bc->pdata->num_clks; hws =3D clk_hw_data->hws; =20 - for (i =3D 0; i < bc_data->num_clks; i++) { - const struct imx95_blk_ctl_clk_dev_data *data =3D &bc_data->clk_dev_data= [i]; + for (i =3D 0; i < bc->pdata->num_clks; i++) { + const struct imx95_blk_ctl_clk_dev_data *data =3D &bc->pdata->clk_dev_da= ta[i]; void __iomem *reg =3D base + data->reg; =20 if (data->type =3D=3D CLK_MUX) { @@ -439,7 +439,7 @@ static int imx95_bc_probe(struct platform_device *pdev) return 0; =20 cleanup: - for (i =3D 0; i < bc_data->num_clks; i++) { + for (i =3D 0; i < bc->pdata->num_clks; i++) { if (IS_ERR_OR_NULL(hws[i])) continue; clk_hw_unregister(hws[i]); @@ -469,14 +469,9 @@ static int imx95_bc_runtime_resume(struct device *dev) static int imx95_bc_suspend(struct device *dev) { struct imx95_blk_ctl *bc =3D dev_get_drvdata(dev); - const struct imx95_blk_ctl_dev_data *bc_data; int ret; =20 - bc_data =3D of_device_get_match_data(dev); - if (!bc_data) - return 0; - - if (bc_data->rpm_enabled) { + if (bc->pdata->rpm_enabled) { ret =3D pm_runtime_get_sync(bc->dev); if (ret < 0) { pm_runtime_put_noidle(bc->dev); @@ -484,7 +479,7 @@ static int imx95_bc_suspend(struct device *dev) } } =20 - bc->clk_reg_restore =3D readl(bc->base + bc_data->clk_reg_offset); + bc->clk_reg_restore =3D readl(bc->base + bc->pdata->clk_reg_offset); =20 return 0; } @@ -492,15 +487,10 @@ static int imx95_bc_suspend(struct device *dev) static int imx95_bc_resume(struct device *dev) { struct imx95_blk_ctl *bc =3D dev_get_drvdata(dev); - const struct imx95_blk_ctl_dev_data *bc_data; - - bc_data =3D of_device_get_match_data(dev); - if (!bc_data) - return 0; =20 - writel(bc->clk_reg_restore, bc->base + bc_data->clk_reg_offset); + writel(bc->clk_reg_restore, bc->base + bc->pdata->clk_reg_offset); =20 - if (bc_data->rpm_enabled) + if (bc->pdata->rpm_enabled) pm_runtime_put(bc->dev); =20 return 0; --=20 2.49.0 From nobody Sun Oct 5 12:52:25 2025 Received: from MRWPR03CU001.outbound.protection.outlook.com (mail-francesouthazon11011001.outbound.protection.outlook.com [40.107.130.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 567F9269CE6; Mon, 4 Aug 2025 13:15:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.130.1 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754313324; cv=fail; b=pkDqiiyPz6Xp5KWHgh3cK85kvJZRDd79+r8S1ATQ5S4ocM15nBK8ljStnLYWr6OFq9O9JAaeBsM/eSHXUJGrTcOQdkwizHrqc5iWkQhOqDLFuL2+5sy0epFTN0o+dwhdltI9EAJ2XI+PBme1gcZJLI3R+Z/14HhCkcf5ZAP0kKg= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754313324; c=relaxed/simple; bh=0qkW2TRkX7qcrM8+NFUnyaXxIUC+1RkO3wmBEXZRhZ0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=UbKlBD0ll4bwg+5MrMSnBoaQNH2OmvoTBHZt0rqbNCV489h+5bPxdAlVOPLoUrcfJrpXp2cnzRc022+BM2Xo1CXKPpMCDNkJp1xOwYuBRZmSW5tG7dsEv6zevriZkhdVmC/6DWqdPJXBaH2bho2uGoWrZGIVwsS5SwM72vjFv5Y= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com; spf=pass smtp.mailfrom=oss.nxp.com; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b=CgL5MVsB; arc=fail smtp.client-ip=40.107.130.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="CgL5MVsB" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=jipRDM7YKoA7GecyBvFSFYe7G3RMsVl2olaUYJwjVUFO9OgROukv7HU9ta4/sRQu12bDWhd3OCVfHIFKgSL2dbEzxh+pgVcm6W3eFQovCqqcLE8Rqr4/imsS+FlhbnQa5u6GiqLudJV3Dv7Zwoj3futTVe1p30PwutU8/X+r32coNc+Q5efErjqt/SrpKhDYuf8pZU49dzS0DYrkzai19jDPzwZbqx06/5FDt/gOie7MuDAEsMzlZdWOqxG6W9NT7L6F6LfkS3c7CqJE0S6v403DRZ/MztppXT5KDhqUm513KxOr4HsP7b3KffDI08wGtohN3G7hxVzdVMbGjB9mhg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=h+wyhR3gUIQ0577MM0yHxcA3SkX+Sznh3MJHxbR1Ijc=; b=qRjtKbHmqAlZ1l6w8L1zZX9dFdgDE2gjICc5rzjIeGOq4PJRgVznsQEGgAW8haFVy1RLqZHIcX19YMxrFS+LTNoa8RxM/4UN47eIbgppoe6klLTeEQMwgTlst6Hnz9lWzUe7sr4M31LS4Sdh93LtL36+mw5S9n0CM3Hd2zxiGFb6PAHx6KxxOfrd69ozgMp9AGW1fRZfrW4Q4AvuDszmkM/pQXBVVb/YOWzSM1DFZy+LNVoKQXIpUbaHhfOMZdzMYHlM20jr1WrnzCSFewhPNYRAV58ey1zpVL/BopLVGpaRHUkVkFWThiNP95ivuzRQmRTUhF2nyXhdT8YZC4PU7Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector1-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=h+wyhR3gUIQ0577MM0yHxcA3SkX+Sznh3MJHxbR1Ijc=; b=CgL5MVsBzweXB57GXNQps2W2Rux2mdUoN9V/Ieo/bv8uDVQ5HyAgB8RkMt2SjOqUd/7O31Jas8mpw6gP/hzWLXg+jQsVkPvP3a0vefukxF+jr+qOR3y+lyqAVRX8xjwEsvzXmjwgoAKRMres5JCBfK4NizJhuT98wZQ7k4apQgtVvoz2ZiWQIo/pMCvh52hPZH2sKB8o/iL3vylCCghhIt9eHXKGDmZyuCNikwfIpjaH4FLxcbASOhEhLIEUnXiNLsGuBAXxEX75lZiVuXNYDQVfzjpIYkPKdIMp9cKvAIuYAgKGFddPF5+npoA102+j8MB2wNqLxqEr0CrqM3+Kww== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from GV1PR04MB9135.eurprd04.prod.outlook.com (2603:10a6:150:26::19) by GV1PR04MB10349.eurprd04.prod.outlook.com (2603:10a6:150:1c6::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8989.20; Mon, 4 Aug 2025 13:15:17 +0000 Received: from GV1PR04MB9135.eurprd04.prod.outlook.com ([fe80::b1f6:475e:de5d:8442]) by GV1PR04MB9135.eurprd04.prod.outlook.com ([fe80::b1f6:475e:de5d:8442%5]) with mapi id 15.20.8989.018; Mon, 4 Aug 2025 13:15:17 +0000 From: Laurentiu Palcu To: Abel Vesa , Peng Fan , Michael Turquette , Stephen Boyd , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: frank.li@nxp.com, Laurentiu Palcu , linux-clk@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2] clk: imx95-blk-ctl: Save/restore registers when RPM routines are called Date: Mon, 4 Aug 2025 16:14:50 +0300 Message-Id: <20250804131450.3918846-3-laurentiu.palcu@oss.nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250804131450.3918846-1-laurentiu.palcu@oss.nxp.com> References: <20250804131450.3918846-1-laurentiu.palcu@oss.nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: AS4P195CA0040.EURP195.PROD.OUTLOOK.COM (2603:10a6:20b:65a::28) To GV1PR04MB9135.eurprd04.prod.outlook.com (2603:10a6:150:26::19) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: GV1PR04MB9135:EE_|GV1PR04MB10349:EE_ X-MS-Office365-Filtering-Correlation-Id: f8ee0ac5-5387-4bee-0b05-08ddd358f47f X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|19092799006|366016|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?x3IjrCG3/kQKsA8Mmjw8LSv/a89E57eOWwkIr+WR251G6O/Ks6qmbGtCKUAg?= =?us-ascii?Q?sRc8fDIPVyh/er9qaaszg1P8rCv8CLvHDEnE7X/toljamjNPbe1ZX3JXj8hK?= =?us-ascii?Q?bhtY8BXSmZzWG/8GlL2HQi4QywbA4bzf/Yxy0UGBAn6PmequMOfzsUSsV83X?= =?us-ascii?Q?JftjktZ10g52JdCcnL20+BkzGeSL9EOObzLnXQQGltRZ+WJWNsQIFpcP+swC?= =?us-ascii?Q?tXMBwl1atnwasfOa0VVsaALrn99vWIhJELR0kJ7LgVMYdXLF4DI+0hlMm2yo?= =?us-ascii?Q?N9RQqXOstAKrEDyTHiwuq7N4P8NH+2EFXnzUIFNKjoQed6yoNhOXIdxAORLK?= =?us-ascii?Q?q4ucYBEt6OzZzMOvmOvmK4x38hKjSEKHh+mmNbyqunsAnBoLqvHQg3OmaYja?= =?us-ascii?Q?Pm0Boq4BEjlQzL8mqG2NBfCtAZwBmFyiMoCbwSGqRv6/nMQLvfYUKx6jXABP?= =?us-ascii?Q?yjB8c9u26EGChiWTM1Xty2rmzf6SuBRbZbbAyj3UtEvEW4mhU0KrOY7vlhAl?= =?us-ascii?Q?b6GNXsNB+R1KO3BeRIQwlGPB6ptT/5DsiCQPu/Tx2jVOwyzUUhKl4yTlFaHO?= =?us-ascii?Q?m/n6FEvHcz0JJlDkv3rB3GAVItEnKHQYhrjKoz86M2TAFaATiaDEILbRrMnD?= =?us-ascii?Q?gNpruIQQEypIMevLKgsNtPpocgO6v9ceyAD2BeLPRMsx6dakshteB/jGA5ao?= =?us-ascii?Q?xxGRvvyzqKfUzqgUwav7exte0AY4ept+ALqKs6bn/Q1wN0Ek6qfqWfCVu017?= =?us-ascii?Q?0goGzTzCXHE34ICAJEKtQqiS2yMJmY0BTXOH2TkTkZZJ4+qiOpkl0VbtnJII?= =?us-ascii?Q?9XHbDBAfgmSE1+CT+MEv4CW65SRqhDX3K0P4/K/Al/RE3dgwxESHpW6YY8EW?= =?us-ascii?Q?oXO6rsOVxgDlPQydIY4R6gqjuj7x/Sycythdlwyr6qWQ6Qy/2V5+J7J4Vzet?= =?us-ascii?Q?EkFnPWihycKPft7rb9B414EFGK2sQkhFNF1RGPmMa7C/RfLs6Zob00tFrZG1?= =?us-ascii?Q?71o087lJkqRbX/wkUesvlnQGa90pdz7QJt/XZlw0troE039ziWtZgyoZ6HJU?= =?us-ascii?Q?ytgO7MLyf868NCfvhCrryVVGorXY26kVTlj2dtCuSB2pri9JRAH1Y4hzoDxS?= =?us-ascii?Q?d5QeAaTtrSFgjHbKiHAU2sw+P1OVUMZRN6YLZ+VwS8u0k+1dvgKdCmzZmZvK?= =?us-ascii?Q?MjV7zQNAkUNx+tu5OhY1YG9qDlDx+mr94oKMBaaii0ATlS7e5HDYN7sbJRcL?= =?us-ascii?Q?Dj/Ec9w2/F0d0YkK+qYglY4YwGzJBrHJI/Ivz2uRvRrCsOnOtnt1eTYbrHrj?= =?us-ascii?Q?tKPomnfpFU45cmNHRaKUUZ+b0HRMFhc23HGLKVx1cvWwNJre4nwwLhJlfJRl?= =?us-ascii?Q?F8vt8Ehb6pjv4ydUFv+4IjYhL8BYYNjsgQzuAgoziy3GYu7+Pg=3D=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:GV1PR04MB9135.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(7416014)(376014)(19092799006)(366016)(1800799024);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?S4aIr5nCqvuGrLxl0vVRUo23CaaQ1kw3JR/g1w6BWw4OWSZviMemppNGuEV8?= =?us-ascii?Q?XlNDWAbaDUpBZxvDkKula6f3+8pfTuip6brOOgikwom9eL0J3MS9kxQ1aInE?= =?us-ascii?Q?7vT0ALoz9bEf/UZH5CdZukQpfZzSLFUXzLkPTjIvBgpLGz7UiLXe0VPxER4O?= =?us-ascii?Q?5diB6PimbiX+AWbGUvlj1eH0bsGQgr3B5JA2jMklaY2NMf6STNbW5FshlysN?= =?us-ascii?Q?qCG24Fxl9h/09kP8D8RMtTnrDkLaoOM28XpxURd77RhMXQ4vZDye7u8njJZQ?= =?us-ascii?Q?d3RHskEi4LM5esH2ExL5ck43emPM/lDZShKLPLUF9uvkxniRAliq008LXJlh?= =?us-ascii?Q?iNBRZvuYvyih3S5qoR977iozU+F6cnTH86umAgM2HyJe0z5dYzZlKO3RxcS6?= =?us-ascii?Q?/bFbMO4X6KS+kogoOlBliQ3Tnn7H1Rg9DMcKpzI+e3HD3FUhlYumIFtFmdRU?= =?us-ascii?Q?LgD4MMZhtRrg1w4qye4WA7Av9VR+/K4bVhiUy06xQVJCey8tKiFFZAspd3vC?= =?us-ascii?Q?+6WhjzhYuIbBh3i8ATJhYEhaxmZriGxNEzKWCJaUNkASj97pYV745cH17M//?= =?us-ascii?Q?zt4yl0/f4YlF4BgN+U0NlUrzfLnG65IWeNYer68BntkGIyDGfCe5aikp4PGz?= =?us-ascii?Q?ppsACjJeRU1F5lndTPmXy0HqYF5jMc+DCCSz2BLqbeg1FWmN6459lQ4J6urJ?= =?us-ascii?Q?wqTIfDkO2MfZgimFnNMvmZJruUE65GMb6PHc0Etis+EoL31bu/XmGbpM0Uay?= =?us-ascii?Q?v/cT+1L4AVnvox5EXveB+w8kAEaptskS89yFvqnCEuRFg/LO9FHnnrcq5/DE?= =?us-ascii?Q?jk8sWrKw43PyEFppALEX+pkW6djca+14HNfGVLbaFCLxf0Bd2evsb8h5yLOe?= =?us-ascii?Q?xN467fUxvaBwRafIRVQxOQt1uISWBcqWZI/LrA9eSn1+OU+3l8QOf6RkQo4H?= =?us-ascii?Q?PZoTedUrtWlwt8XC7ZlOrdKkkMpR3cDQ9QP9GjvTlRZ2ZUjd8G4Ool1Gy/Rl?= =?us-ascii?Q?pZs1pGY3iJZ4/AzQ6v1A/1cM2WVDlVJSRKefxFbwdttdJbKsUfaKTx8Piq1S?= =?us-ascii?Q?GsvADA5nzeVnt/CBb0zk8GmNOlnrVCx5Gi8d7gR0lmwsrjBACNlDsmlH4Bpz?= =?us-ascii?Q?yR+uJ/U5AG6wEKQBLkXMzpPrPxlL3zV9XMeXZ7sDdOlZOW7hcmGItLDeJn6X?= =?us-ascii?Q?ovQcYi46tMAauxoJAVqFuMYlIM7GXlpkVAbpWQpJtqnYg9KpmpLwiyRfna4k?= =?us-ascii?Q?9PZ28GnTdwGJ2GcHoWuMmiFqOCHwt3lkPaeun79y6hs30bzOICo2fGNycwlC?= =?us-ascii?Q?4LgSf/a/mggp661Emv0hcZu89WgjGp+627kO133FvrIaYzBDZTRnmmcZ9vi0?= =?us-ascii?Q?NdE4/Brbl2dyWqzxUnxr81XBFanUMfISWS1X5S/li0D9h8vnq6nC5ELkBRMI?= =?us-ascii?Q?o0N31lfXjuOmAg10V7jr7JZt1tQLxYrpSl2ojWxml2qd4DiOzGMgHtAUGM1e?= =?us-ascii?Q?xAPhgkAEh0Y+0Ds9OH6pFoKHUWROEdQ4g1QYAA0ALoIGTSXkPwZ/xU0gTGZd?= =?us-ascii?Q?8J23nSBoVJnhMl1AIZOprihI5G0vBQMD60DHFeAogWz2O+xpk7WebEm5oNKQ?= =?us-ascii?Q?jw=3D=3D?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: f8ee0ac5-5387-4bee-0b05-08ddd358f47f X-MS-Exchange-CrossTenant-AuthSource: GV1PR04MB9135.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Aug 2025 13:15:17.3271 (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: vn31f1lUoDcMipA0OTF+bpQSg5P8Nssl16lPvNchqxKqNK89lHg5gZsq6bZ4iGnDvV9EyzFyDpC9Hu+gHpyd8A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV1PR04MB10349 Content-Type: text/plain; charset="utf-8" When runtime PM is used for clock providers that are part of a power domain, the power domain supply is cut off during runtime suspend. This causes all BLK CTL registers belonging to that power domain to reset. To prevent this, save the state of the registers before entering suspend and restore them on resume. Additionally, disable the APB clock during suspend to minimize power consumption. Signed-off-by: Laurentiu Palcu Reviewed-by: Frank Li --- drivers/clk/imx/clk-imx95-blk-ctl.c | 33 ++++++++++++++++++----------- 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/drivers/clk/imx/clk-imx95-blk-ctl.c b/drivers/clk/imx/clk-imx9= 5-blk-ctl.c index c72debaf3a60b..56bed44719954 100644 --- a/drivers/clk/imx/clk-imx95-blk-ctl.c +++ b/drivers/clk/imx/clk-imx95-blk-ctl.c @@ -453,15 +453,24 @@ static int imx95_bc_runtime_suspend(struct device *de= v) { struct imx95_blk_ctl *bc =3D dev_get_drvdata(dev); =20 + bc->clk_reg_restore =3D readl(bc->base + bc->pdata->clk_reg_offset); clk_disable_unprepare(bc->clk_apb); + return 0; } =20 static int imx95_bc_runtime_resume(struct device *dev) { struct imx95_blk_ctl *bc =3D dev_get_drvdata(dev); + int ret; =20 - return clk_prepare_enable(bc->clk_apb); + ret =3D clk_prepare_enable(bc->clk_apb); + if (ret) + return ret; + + writel(bc->clk_reg_restore, bc->base + bc->pdata->clk_reg_offset); + + return 0; } #endif =20 @@ -469,17 +478,12 @@ static int imx95_bc_runtime_resume(struct device *dev) static int imx95_bc_suspend(struct device *dev) { struct imx95_blk_ctl *bc =3D dev_get_drvdata(dev); - int ret; =20 - if (bc->pdata->rpm_enabled) { - ret =3D pm_runtime_get_sync(bc->dev); - if (ret < 0) { - pm_runtime_put_noidle(bc->dev); - return ret; - } - } + if (pm_runtime_suspended(dev)) + return 0; =20 bc->clk_reg_restore =3D readl(bc->base + bc->pdata->clk_reg_offset); + clk_disable_unprepare(bc->clk_apb); =20 return 0; } @@ -487,11 +491,16 @@ static int imx95_bc_suspend(struct device *dev) static int imx95_bc_resume(struct device *dev) { struct imx95_blk_ctl *bc =3D dev_get_drvdata(dev); + int ret; =20 - writel(bc->clk_reg_restore, bc->base + bc->pdata->clk_reg_offset); + if (pm_runtime_suspended(dev)) + return 0; =20 - if (bc->pdata->rpm_enabled) - pm_runtime_put(bc->dev); + ret =3D clk_prepare_enable(bc->clk_apb); + if (ret) + return ret; + + writel(bc->clk_reg_restore, bc->base + bc->pdata->clk_reg_offset); =20 return 0; } --=20 2.49.0