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,USER_AGENT_GIT autolearn=ham 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 2DE2DC2D0C0 for ; Mon, 23 Dec 2019 15:24:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E941B206B7 for ; Mon, 23 Dec 2019 15:24:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cadence.com header.i=@cadence.com header.b="Poyrp/o3"; dkim=pass (1024-bit key) header.d=cadence.com header.i=@cadence.com header.b="qEadLsJJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726795AbfLWPYZ (ORCPT ); Mon, 23 Dec 2019 10:24:25 -0500 Received: from mx0a-0014ca01.pphosted.com ([208.84.65.235]:10762 "EHLO mx0a-0014ca01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726866AbfLWPYZ (ORCPT ); Mon, 23 Dec 2019 10:24:25 -0500 Received: from pps.filterd (m0042385.ppops.net [127.0.0.1]) by mx0a-0014ca01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xBNFOFaf018287; Mon, 23 Dec 2019 07:24:15 -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=Poyrp/o38QUtoJo8e+ZymWrK8vGpcATN2eGL2ZEAoAWsyIpwEC1DyLZrBye1R2wB0oDK qbrjmXLOgg9bpsSLm6hgVZw+d+6ykScW0wdA9Q/+8opii6FNWQRSJRwciAS8x3F0y0Of G5wL+EDqeIgTSqdDAmsAG3pbtuCOL7jMCQmf5HSQIzMJt3W9+ZitYiSzQikXb89q6wU3 hbfTeHSx2uQV7t7ApCiVOv1Q9skCXDBBVs4krYOPcGql9XjxpQIiqCLBSALmEoUuyB9i 577ru1TMjQ8TxklUXl1R/051gShTCvr2Vt18KR0rSuGVrK5IHGsbxWcBpFdNRKBFxTa+ gQ== Received: from nam12-mw2-obe.outbound.protection.outlook.com (mail-mw2nam12lp2043.outbound.protection.outlook.com [104.47.66.43]) by mx0a-0014ca01.pphosted.com with ESMTP id 2x1gu4wapb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 23 Dec 2019 07:15:53 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UpM6KflkqA/vZQJjZYeSeLb26qtHc9tap5O4vDIYIxH8ajK7E0TvoOcYf45g9Oz1lz+jRDVXgfcUEtV8P0cqou/QFuyPRDmg91bn2dOxwX6rdKH3fpkUyZwWeVMj6XwybxjAy9mtV9+8Zpikev3KTz3+7zkPnthB4VO6IuxcvQvdwGsN5w9af588KAjz8Dvz6fggq+RmQkiSfUjbVx952resipDtGWA8A/DAUp2t9uYhG/K77ZQzS028cXGAUryo6k3UPcxV1huVxW2ZhTdsMMi2ijG8JBfhUK8ZTmF6UY8V0Wmcr4l23VbUt974CpevxyU0VMQL+1oIGq6bdj/Ulw== 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=TH9NYm6FDf3ArdgaZhQoPB0bkMIbbMP8XsdoDayD/JiBaUNpQCPwi0lzv82S52n4Cu5JOB0gPI0eMB2pEsscyF6yV2OW49pxA1vr6NL+Uza9c7D8JpRUQ4yCoPgEMarbBX1KOGRNSIqSgJzn2fZVppwX7nENGLFgG+RwoF1LvIS+oggAD1fhJBo+tsswVXNuPEDajgl2Rfs/DF4SwygJtUm8eLnr7HvMM0FOQNyYcQ9CaSMgojjUUa+kFAEr2PwmT2Xx/o41nqtPTMeGAq97muaz46CfFO6TYZ80WCIcrxRtgTdXb6pz7abFqZQ0U767WqlOdaHMi4DO4fXuHqeyfg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 64.207.220.243) 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=qEadLsJJA0gdAfLWKdttPkwQS2+XS8F1qSNVP+wp2HFxMU+tI8YJDvwEtBKDrpqHoskCDtn4Dwaai47iIVmuQefkuONzd/bavfiTQRVI7uj0l+6aYQUAQlLEqZMaKp0bkZMXhtWdAAcGjyBXik6dR49aIlXahYUHJYjjrE8dLOw= Received: from BYAPR07CA0100.namprd07.prod.outlook.com (2603:10b6:a03:12b::41) by BN6PR07MB3602.namprd07.prod.outlook.com (2603:10b6:405:62::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2559.14; Mon, 23 Dec 2019 15:15:50 +0000 Received: from MW2NAM12FT056.eop-nam12.prod.protection.outlook.com (2a01:111:f400:fe5a::200) by BYAPR07CA0100.outlook.office365.com (2603:10b6:a03:12b::41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2559.14 via Frontend Transport; Mon, 23 Dec 2019 15:15:50 +0000 Received-SPF: Pass (protection.outlook.com: domain of cadence.com designates 64.207.220.243 as permitted sender) receiver=protection.outlook.com; client-ip=64.207.220.243; helo=wcmailrelayl01.cadence.com; Received: from wcmailrelayl01.cadence.com (64.207.220.243) by MW2NAM12FT056.mail.protection.outlook.com (10.13.181.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2538.16 via Frontend Transport; Mon, 23 Dec 2019 15:15:49 +0000 Received: from maileu3.global.cadence.com (maileu3.cadence.com [10.160.88.99]) by wcmailrelayl01.cadence.com (8.14.7/8.14.4) with ESMTP id xBNFFfVa093771 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=OK); Mon, 23 Dec 2019 07:15:49 -0800 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; Mon, 23 Dec 2019 16:15:44 +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; Mon, 23 Dec 2019 16:15:44 +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 xBNFFiFT015211; Mon, 23 Dec 2019 16:15:44 +0100 Received: (from yamonkar@localhost) by vleu-orange.cadence.com (8.14.4/8.14.4/Submit) id xBNFFiWx015204; Mon, 23 Dec 2019 16:15:44 +0100 From: Yuti Amonkar To: , , , , , CC: , , , , , Subject: [PATCH v2 09/14] phy: cadence-torrent: Add PHY lane reset support Date: Mon, 23 Dec 2019 16:15:34 +0100 Message-ID: <1577114139-14984-10-git-send-email-yamonkar@cadence.com> X-Mailer: git-send-email 2.4.5 In-Reply-To: <1577114139-14984-1-git-send-email-yamonkar@cadence.com> References: <1577114139-14984-1-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:64.207.220.243;IPV:;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(4636009)(376002)(346002)(39860400002)(396003)(136003)(36092001)(199004)(189003)(6666004)(26005)(36906005)(86362001)(107886003)(356004)(110136005)(70206006)(186003)(316002)(42186006)(2906002)(478600001)(4326008)(70586007)(2616005)(54906003)(5660300002)(336012)(81166006)(81156014)(8936002)(8676002)(36756003)(426003);DIR:OUT;SFP:1101;SCL:1;SRVR:BN6PR07MB3602;H:wcmailrelayl01.cadence.com;FPR:;SPF:Pass;LANG:en;PTR:unused.mynethost.com;A:1;MX:1; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: bcc36aa3-40b6-4622-c5bf-08d787bafe65 X-MS-TrafficTypeDiagnostic: BN6PR07MB3602: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3173; X-Forefront-PRVS: 0260457E99 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: 23 Dec 2019 15:15:49.7413 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bcc36aa3-40b6-4622-c5bf-08d787bafe65 X-MS-Exchange-CrossTenant-Id: d36035c5-6ce6-4662-a3dc-e762e61ae4c9 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=d36035c5-6ce6-4662-a3dc-e762e61ae4c9;Ip=[64.207.220.243];Helo=[wcmailrelayl01.cadence.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR07MB3602 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-23_06:2019-12-23,2019-12-23 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_check_notspam policy=outbound_check score=0 spamscore=0 impostorscore=0 mlxscore=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 clxscore=1015 suspectscore=0 phishscore=0 mlxlogscore=914 priorityscore=1501 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912230129 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@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