From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC334C43603 for ; Wed, 11 Dec 2019 13:09:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A7F7D20836 for ; Wed, 11 Dec 2019 13:09:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cadence.com header.i=@cadence.com header.b="AeaObzsi"; dkim=pass (1024-bit key) header.d=cadence.com header.i=@cadence.com header.b="dq925cxW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729509AbfLKNJt (ORCPT ); Wed, 11 Dec 2019 08:09:49 -0500 Received: from mx0b-0014ca01.pphosted.com ([208.86.201.193]:33276 "EHLO mx0a-0014ca01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729469AbfLKNJq (ORCPT ); Wed, 11 Dec 2019 08:09:46 -0500 Received: from pps.filterd (m0042333.ppops.net [127.0.0.1]) by mx0b-0014ca01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xBBD48ZN020455; Wed, 11 Dec 2019 05:09:40 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cadence.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=proofpoint; bh=vMkbLO17azLuNd0Mml0yUUzSefeiNPLw9O43k2jMHSg=; b=AeaObzsiZOW4Kh8hrbftvm/Pjd2AOK3hLqkmetA23Y1TvqyksC1Ut3Aog67BqU6AWXVa hnh/Tqt1/rVxTue9zCZx0NCJSMknoc/tzbc7V+EaRoISHmrtxQ3Qu09n6JkF2/CbN+/U 1LS5LjZKbW1CIMsuI3cuPO7beYbQJaipF7y72LNa/0U0rWSFzNP3FonGgQmVKZ+e1PhC CYdsQis+eMBa+2KEWfonwrrLuGL1v1FHWAhKwU5G549A1XORG7rrKpHPTysh80EBOpb+ fY44OWHOKzAE/is5dQ1DmFt23x59Wq/DUu5xajHQcYVxrnXLqaFKv/o6cLW9EbQX6xAK 4A== Received: from nam11-dm6-obe.outbound.protection.outlook.com (mail-dm6nam11lp2176.outbound.protection.outlook.com [104.47.57.176]) by mx0b-0014ca01.pphosted.com with ESMTP id 2wr9dfp68k-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Dec 2019 05:09:40 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Ajq4OLAx2gLWQSzOsaZPZvsMZOxaYuQ/777SvlXD1twl3y8F1brEQXdBBmZN+rjQn6zg9klqOiUi4+ipQfRc8smXtEPc4zV2QGlIPwcPmnalM99ILDPIy936Da9H5B7et/DG1NvQruBawZ82UbHkXDUPWBsduhgiESgtmuSIJiSJwtaClvJ9MCce1KomWeq+Vshb0kgkDQNAG73m1UClisOAikavpZkVr8uz3p9XN68i1D8oGHnHwTcyJY0YZhrQhnio6kW+EXzoyYYYqLQvP/ng+lPd+HBeJ6I212VzxIfP+aumR7ts3LHNs0XRbIXauROwqrXHInFgdDR5mkup6g== 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-SenderADCheck; bh=vMkbLO17azLuNd0Mml0yUUzSefeiNPLw9O43k2jMHSg=; b=NC+rv95+us+IzUZc6iYSlhGMdreZ57q6KiMt1Qnd98v8ZlFrcus/WtvSgesj9X+gCJhK0xWF5eV5z6AiAldovxbD7Cy4EH14VpfB+CHJUFCRiVVKYkuJQz+vKAbKlEaDhbKa29hLncUxB+NDskjEQoACz5bYEi4bCHLaz2im97QbUpFzsC22ZON+/ZegwcPM851IzUCvwt2AGrsJnsJjlRI5tLoarlE3kcMiFwXsbrQfbVBLu2MN8cqBYOvF4BlcjPCfQbkGaYY0FnRfGkuKfvxz6ZJzzIQgpjQnh8VgZXpP4dsHBxHSjfflnOObB5blxe63wmKtVDLol+2UJNCkOg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 199.43.4.28) smtp.rcpttodomain=ti.com smtp.mailfrom=cadence.com; dmarc=pass (p=none sp=none pct=100) action=none header.from=cadence.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cadence.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=vMkbLO17azLuNd0Mml0yUUzSefeiNPLw9O43k2jMHSg=; b=dq925cxWzz0LFTcIvRDnS5a1AGekCH/2E5JScjm8/+16nBgEFqV+ZdBpx5h5ERlm6SArJFK44qlxBNNRQ0/5ArU3FoIpVORfYRACPonrJk9IA9nfcN2hwSnJBDNSqdCM2gVdoeqMxc+2MWCGrLcLYIUojo7Se0Vbst4601B5RGA= Received: from DM5PR07CA0116.namprd07.prod.outlook.com (2603:10b6:4:ae::45) by CY4PR07MB3094.namprd07.prod.outlook.com (2603:10b6:903:ce::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2516.12; Wed, 11 Dec 2019 13:09:37 +0000 Received: from MW2NAM12FT052.eop-nam12.prod.protection.outlook.com (2a01:111:f400:fe5a::205) by DM5PR07CA0116.outlook.office365.com (2603:10b6:4:ae::45) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2516.17 via Frontend Transport; Wed, 11 Dec 2019 13:09:37 +0000 Received-SPF: Pass (protection.outlook.com: domain of cadence.com designates 199.43.4.28 as permitted sender) receiver=protection.outlook.com; client-ip=199.43.4.28; helo=rmmaillnx1.cadence.com; Received: from rmmaillnx1.cadence.com (199.43.4.28) by MW2NAM12FT052.mail.protection.outlook.com (10.13.180.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2495.18 via Frontend Transport; Wed, 11 Dec 2019 13:09:36 +0000 Received: from maileu3.global.cadence.com (maileu3.cadence.com [10.160.88.99]) by rmmaillnx1.cadence.com (8.14.4/8.14.4) with ESMTP id xBBD9L5j006811 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Wed, 11 Dec 2019 08:09:34 -0500 X-CrossPremisesHeadersFilteredBySendConnector: maileu3.global.cadence.com Received: from maileu3.global.cadence.com (10.160.88.99) by maileu3.global.cadence.com (10.160.88.99) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Wed, 11 Dec 2019 14:09:23 +0100 Received: from vleu-orange.cadence.com (10.160.88.83) by maileu3.global.cadence.com (10.160.88.99) with Microsoft SMTP Server (TLS) id 15.0.1367.3 via Frontend Transport; Wed, 11 Dec 2019 14:09:23 +0100 Received: from vleu-orange.cadence.com (localhost.localdomain [127.0.0.1]) by vleu-orange.cadence.com (8.14.4/8.14.4) with ESMTP id xBBD9N9s011697; Wed, 11 Dec 2019 14:09:23 +0100 Received: (from yamonkar@localhost) by vleu-orange.cadence.com (8.14.4/8.14.4/Submit) id xBBD9NXq011696; Wed, 11 Dec 2019 14:09:23 +0100 From: Yuti Amonkar To: , , , , CC: , , , , , Subject: [RESEND PATCH v1 10/15] phy: cadence-torrent: Add PHY lane reset support Date: Wed, 11 Dec 2019 14:09:15 +0100 Message-ID: <1576069760-11473-11-git-send-email-yamonkar@cadence.com> X-Mailer: git-send-email 2.4.5 In-Reply-To: <1576069760-11473-1-git-send-email-yamonkar@cadence.com> References: <1576069760-11473-1-git-send-email-yamonkar@cadence.com> MIME-Version: 1.0 Content-Type: text/plain X-OrganizationHeadersPreserved: maileu3.global.cadence.com X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:199.43.4.28;IPV:CAL;SCL:-1;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(4636009)(136003)(346002)(39860400002)(376002)(396003)(36092001)(189003)(199004)(76130400001)(5660300002)(54906003)(336012)(356004)(8676002)(4326008)(2616005)(426003)(81156014)(8936002)(81166006)(186003)(70586007)(70206006)(26826003)(36756003)(107886003)(6666004)(26005)(478600001)(2906002)(42186006)(316002)(110136005)(86362001);DIR:OUT;SFP:1101;SCL:1;SRVR:CY4PR07MB3094;H:rmmaillnx1.cadence.com;FPR:;SPF:Pass;LANG:en;PTR:InfoDomainNonexistent;MX:1;A:1; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 89aecc47-351c-4118-b972-08d77e3b5f76 X-MS-TrafficTypeDiagnostic: CY4PR07MB3094: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3173; X-Forefront-PRVS: 024847EE92 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-OriginatorOrg: cadence.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Dec 2019 13:09:36.4519 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 89aecc47-351c-4118-b972-08d77e3b5f76 X-MS-Exchange-CrossTenant-Id: d36035c5-6ce6-4662-a3dc-e762e61ae4c9 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=d36035c5-6ce6-4662-a3dc-e762e61ae4c9;Ip=[199.43.4.28];Helo=[rmmaillnx1.cadence.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR07MB3094 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-11_03:2019-12-11,2019-12-11 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_check_notspam policy=outbound_check score=0 mlxscore=0 malwarescore=0 suspectscore=0 phishscore=0 impostorscore=0 spamscore=0 priorityscore=1501 adultscore=0 bulkscore=0 clxscore=1015 mlxlogscore=871 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912110111 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Swapnil Jakhade Add reset support for PHY lane group. Signed-off-by: Swapnil Jakhade --- drivers/phy/cadence/phy-cadence-torrent.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/phy/cadence/phy-cadence-torrent.c b/drivers/phy/cadence/phy-cadence-torrent.c index 6c3eaaa..ebc3b68 100644 --- a/drivers/phy/cadence/phy-cadence-torrent.c +++ b/drivers/phy/cadence/phy-cadence-torrent.c @@ -18,6 +18,7 @@ #include #include #include +#include #define REF_CLK_19_2MHz 19200000 #define REF_CLK_25MHz 25000000 @@ -144,6 +145,7 @@ struct cdns_torrent_phy { void __iomem *sd_base; /* SD0801 registers base */ u32 num_lanes; /* Number of lanes to use */ u32 max_bit_rate; /* Maximum link bit rate to use (in Mbps) */ + struct reset_control *phy_rst; struct device *dev; struct clk *clk; unsigned long ref_clk_rate; @@ -182,9 +184,14 @@ static void cdns_dp_phy_write_field(struct cdns_torrent_phy *cdns_phy, unsigned char num_bits, unsigned int val); +static int cdns_torrent_phy_on(struct phy *phy); +static int cdns_torrent_phy_off(struct phy *phy); + static const struct phy_ops cdns_torrent_phy_ops = { .init = cdns_torrent_dp_init, .exit = cdns_torrent_dp_exit, + .power_on = cdns_torrent_phy_on, + .power_off = cdns_torrent_phy_off, .owner = THIS_MODULE, }; @@ -317,6 +324,9 @@ static int cdns_torrent_dp_init(struct phy *phy) /* take out of reset */ cdns_dp_phy_write_field(cdns_phy, PHY_RESET, 8, 1, 1); + + cdns_torrent_phy_on(phy); + ret = cdns_torrent_dp_wait_pma_cmn_ready(cdns_phy); if (ret) return ret; @@ -945,6 +955,21 @@ static void cdns_dp_phy_write_field(struct cdns_torrent_phy *cdns_phy, start_bit)))); } +static int cdns_torrent_phy_on(struct phy *phy) +{ + struct cdns_torrent_phy *cdns_phy = phy_get_drvdata(phy); + + /* Take the PHY lane group out of reset */ + return reset_control_deassert(cdns_phy->phy_rst); +} + +static int cdns_torrent_phy_off(struct phy *phy) +{ + struct cdns_torrent_phy *cdns_phy = phy_get_drvdata(phy); + + return reset_control_assert(cdns_phy->phy_rst); +} + static int cdns_torrent_phy_probe(struct platform_device *pdev) { struct resource *regs; @@ -976,6 +1001,8 @@ static int cdns_torrent_phy_probe(struct platform_device *pdev) if (IS_ERR(cdns_phy->sd_base)) return PTR_ERR(cdns_phy->sd_base); + cdns_phy->phy_rst = devm_reset_control_array_get_exclusive(dev); + err = device_property_read_u32(dev, "num_lanes", &cdns_phy->num_lanes); if (err) -- 2.7.4