From patchwork Mon Nov 14 12:40:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wayne Chang X-Patchwork-Id: 624667 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1195AC4321E for ; Mon, 14 Nov 2022 12:42:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237379AbiKNMm2 (ORCPT ); Mon, 14 Nov 2022 07:42:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237145AbiKNMmM (ORCPT ); Mon, 14 Nov 2022 07:42:12 -0500 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (mail-mw2nam10on2058.outbound.protection.outlook.com [40.107.94.58]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 24650252B5; Mon, 14 Nov 2022 04:41:56 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Copy/L1/+uzgZQ0OY7EQFcCobfDY5iwL7SfKa2P+DtEEdhn1A8AIW22sX99s8KcLkhwJHRrcGc+x7rYAIsdt9stQo6C3A086uljYzuC5zYcFPEqmZlnod0GdRVpUHkcab8d78zfbELc0PKAbyxUVghdHsyhgoE/T7BmH1dNqQc237BkCqyaeWHm5/zWbIpgms11y98hKGPPTvtDShygWPE9gLYccLryIiqJXo2mfz083blSslVr0M3sgOQkHYf08kDy2jlELLTP1AgDZhW725bmDbBsKPXVqtdFGpbKGk4uRhVHKFjSG12JRBHPLmVvvzhDvM/FvhLFzXsgmLmFJNg== 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=ROCVdifGaQFd2ky2Z1uEdzRwoK7/v6Qh9sUb1kBotLw=; b=I7T8pe/M6yt4SN3trofR9dmELuKAqt4LEmkxj9AcfGP6ERGglBXTWV6fwm2AOgb3CgfjmVAN+/wy6isycrbm/tJQbR0yJ6eYIBSMxFL3GuKjrRQp7XLM7r0J2KHgV5TBnSYZLFdLA6iou/gVSHkXLFlmCBVDMn4tzsKoCz+NgFTTojLW4J4btPOd1mYHSDIzrfIrFEAObPcFd8qVLmYxTZEMPCgbBzj94Kl1JZWflQG4TBVX/I7lT1rEY+6NpBDbX6L7OPtvLPxbvJEmVchAfrlhE1Bw+aPHJ1vnX+3M+YkN9qGMXFfFICee/JxrlvcJSTh/KDMqY5Sib9ZA2cizpQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.160) smtp.rcpttodomain=linuxfoundation.org smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ROCVdifGaQFd2ky2Z1uEdzRwoK7/v6Qh9sUb1kBotLw=; b=uBOvnGV7NT04SP/wrYoRPFCmfT7trKMMU4Ua+E2cNBT76x06RyOayMGgsHGqjl89wCYK7m+tIYlrTMUZNogOZY3KczXhDnz4ukvqUO1gEAMHRGEd56j2BYILRkiK5td5iyLb80M9e7whRrsI2XWnxauTw3Z5y6S5nmK6qHN0tV3rjHHT02lawfVh0kfQRKYd9C4RoLWdAwur86CFM8GrtrSCrsgKfguMjCUVN27u8j0XM5gmIP7E0uoAb9LgSxgHu6TfPNhhwzq2sfq3iYv08/GcI29g7sR4vNVCO+LkUv/5XrcAYuT1xkq4zLQlXKvBZqvItBAqnHPPa2LWp4x49Q== Received: from MN2PR11CA0007.namprd11.prod.outlook.com (2603:10b6:208:23b::12) by DS0PR12MB7678.namprd12.prod.outlook.com (2603:10b6:8:135::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5813.17; Mon, 14 Nov 2022 12:41:54 +0000 Received: from BL02EPF0000EE3D.namprd05.prod.outlook.com (2603:10b6:208:23b:cafe::e7) by MN2PR11CA0007.outlook.office365.com (2603:10b6:208:23b::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5813.17 via Frontend Transport; Mon, 14 Nov 2022 12:41:54 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.160) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.160 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.160) by BL02EPF0000EE3D.mail.protection.outlook.com (10.167.241.134) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5813.11 via Frontend Transport; Mon, 14 Nov 2022 12:41:54 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Mon, 14 Nov 2022 04:41:40 -0800 Received: from rnnvmail202.nvidia.com (10.129.68.7) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Mon, 14 Nov 2022 04:41:39 -0800 Received: from waynec-Precision-5760.nvidia.com (10.127.8.13) by mail.nvidia.com (10.129.68.7) with Microsoft SMTP Server id 15.2.986.36 via Frontend Transport; Mon, 14 Nov 2022 04:41:36 -0800 From: Wayne Chang To: , , , , , , , , , , , , CC: , , , , , , , Subject: [PATCH v3 10/13] phy: tegra: xusb: Disable trk clk when not in use Date: Mon, 14 Nov 2022 20:40:50 +0800 Message-ID: <20221114124053.1873316-11-waynec@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221114124053.1873316-1-waynec@nvidia.com> References: <20221114124053.1873316-1-waynec@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0000EE3D:EE_|DS0PR12MB7678:EE_ X-MS-Office365-Filtering-Correlation-Id: 66033cac-1e55-43a9-75b1-08dac63d9c5a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 6BTWMIzI1lHJ3B1URJBm+6yHu6gjetw2tYjBJfITcVcO8aiKfRJcou9W+DKx2vCh1qxgqXBkFeuPy4ywUbPi7bBORB4LnjugB+xInCOUivB5+VMHEfQbH9A3uL7khOgU4741pAdk0euLcBj6IFRjnA9CAFW6yClxbhd4BLKvfSIqj2XXunF6wB7o4zzVS1XRcNG266wp/1Gxvfzp9MFZX1wiseO1OYwmDq4zO53GJJuGfveHr6kS/NOPk4lKY2pGcj0Xkjt+04HVX09RV0MuW0PJrCGTELtlfbo0LgL6T5PAUFZg5XJFCgW8VJL5G1fjI+46yiL8M1Gc3eU0goAytnEnEwp46ZHfEaJyyOfa0qhLeZvNiunB3V3nDiH0sC8FfTzTk0lXv57cH6yRn2jZpCI/tGEWuX0mY5FSQNAg39YQJLGNcWl6j58IUoDHkMHGoMTMNucRQFezje6NtpVDA5wiVETFiigBVb4Q6jBtM4QBbbKyxzW4uxajRnTWHlSrQAfm//74bONQjez+wLq4uiScp3m5H1acMUoBo8ipHzC05WEQGfbljsLSIPwCPc/6XiXQlW40sdsEv0iBLHNq1DiRMp5Dwl84Ti9aJM25hXOYH6z/DGO3C2p7eLyy71WhlizHj/zQAAiMn+haUF/KIN1RivVMZyVEtTkzR5NyO6Ga/fhOWCiZ4MPRppHrI2PZ2GTFMYqk0XEGK5sUV6r2lVWakaw3TWgec8EXplq5COiifopTd17kSequaHm+y2HYY0Z35CXdfK1KcUZQZLageYh6jR/vR61TEk/G3oNU9DE= X-Forefront-Antispam-Report: CIP:216.228.117.160; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge1.nvidia.com; CAT:NONE; SFS:(13230022)(4636009)(396003)(346002)(39860400002)(136003)(376002)(451199015)(36840700001)(40470700004)(46966006)(83380400001)(1076003)(426003)(336012)(2616005)(47076005)(186003)(82740400003)(356005)(7636003)(36860700001)(2906002)(7416002)(8936002)(921005)(40460700003)(40480700001)(82310400005)(478600001)(26005)(6666004)(7696005)(5660300002)(8676002)(41300700001)(70586007)(70206006)(4326008)(316002)(6636002)(54906003)(110136005)(36756003)(86362001); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Nov 2022 12:41:54.2637 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 66033cac-1e55-43a9-75b1-08dac63d9c5a X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.160]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0000EE3D.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7678 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Pad tracking is a one-time calibration for Tegra186 and Tegra194. Clk should be disabled after calibration. Disable clk after calibration. While at it add 100us delay for HW recording the calibration value. Signed-off-by: Wayne Chang Reviewed-by: Jon Hunter --- V2 -> V3:nothing has changed V1 -> V2:update the commit message. drivers/phy/tegra/xusb-tegra186.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/phy/tegra/xusb-tegra186.c b/drivers/phy/tegra/xusb-tegra186.c index 0996ede63387..f121b4ffbbfd 100644 --- a/drivers/phy/tegra/xusb-tegra186.c +++ b/drivers/phy/tegra/xusb-tegra186.c @@ -609,6 +609,10 @@ static void tegra186_utmi_bias_pad_power_on(struct tegra_xusb_padctl *padctl) value &= ~USB2_PD_TRK; padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); + udelay(100); + + clk_disable_unprepare(priv->usb2_trk_clk); + mutex_unlock(&padctl->lock); } @@ -633,8 +637,6 @@ static void tegra186_utmi_bias_pad_power_off(struct tegra_xusb_padctl *padctl) value |= USB2_PD_TRK; padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); - clk_disable_unprepare(priv->usb2_trk_clk); - mutex_unlock(&padctl->lock); }