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, 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 76E77C0650F for ; Mon, 5 Aug 2019 13:56:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3711920657 for ; Mon, 5 Aug 2019 13:56:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=analog.onmicrosoft.com header.i=@analog.onmicrosoft.com header.b="MnqE/VMa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729899AbfHENzq (ORCPT ); Mon, 5 Aug 2019 09:55:46 -0400 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:1472 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729805AbfHENzn (ORCPT ); Mon, 5 Aug 2019 09:55:43 -0400 Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x75DqoCV015406; Mon, 5 Aug 2019 09:55:36 -0400 Received: from nam01-by2-obe.outbound.protection.outlook.com (mail-by2nam01lp2052.outbound.protection.outlook.com [104.47.34.52]) by mx0a-00128a01.pphosted.com with ESMTP id 2u5448sdbw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 05 Aug 2019 09:55:36 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ebCyqM3nBEWumVF8fe9lKIbQGJVbFvVBsaPnuKAeOpQ7GRPc/OuPBLXy7OLGMA1ypJRGgxCbUXzoJKJXXLSP0AEu5YRC2uWaPwK0Zt4YyCkOPxGElPeFkjlH62kHV3dodCtPqBCWwOpVRQjBl2n0sJEjghrwmjuJsqOcMZoijxW9U/p+AsYiw0KQxGtf6pULlz+c96mmLDkbWMJxVenojeemjPNJ07ooYPa5SYO4VdkGKdF3Kv/vqBWWCaf/FSJDjTUskq2QxqfPip+soyWIseT8/HVA3kMu2KICBy8QfM7+VzH0XoWRUucSHmfRPL5WHqfcNf+oKrKH1GYM09GxXA== 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=uSVlBXmLQrbrDr/1UrmkH0PUCXZvePdkxAdhdT5SR9o=; b=fWSOTNjDUdj9w1fyLbQFrhPy6LcfoU+i+kFl5/CsXlcvDOZVsTpH6oy6ACP7npiT9xYRGNCA6MDPlUtL893ywDp6eiBSfUKqDOthGwO56jDZYUnFeZDSOFhdC0Qyi3W33ocKf27NTc5pbAhCDRl9j3hxN5zlRH6ktiL7u7YsjL9HdNm5Igfk5AIQUG2KKTBHS4uOKgANEX6t4ofTCRk2Wa6hEBgCSzkJaJQ0n+n+bCuLR5lQ994tyyE3ddn+KPH3+0wzYOVrotrjMYbz7XmjHTgjWvKd/xU9VR8nPU9q6sUkG647rhWaDxW3u5cmBcguI/Cvr3YKhCYUfEz5qVKc1Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1;spf=pass (sender ip is 137.71.25.55) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=analog.com;dmarc=bestguesspass action=none header.from=analog.com;dkim=none (message not signed);arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.onmicrosoft.com; s=selector2-analog-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=uSVlBXmLQrbrDr/1UrmkH0PUCXZvePdkxAdhdT5SR9o=; b=MnqE/VMaGHg4WHSGllkA6FZuYfqXVROXb6Qe0VtYh0MoZCX7p2jpR6fFkMmleuILia+bsI5ZJoHsJfulas8l7zfqLitW96NOKFE12Dv4VDAjFdvf/3bXvX0uWrs/rZgOZfsp42KGryi0Vl4L/EdyNALNnjXImDzcP5mV48gmWho= Received: from MWHPR03CA0014.namprd03.prod.outlook.com (2603:10b6:300:117::24) by SN2PR03MB2192.namprd03.prod.outlook.com (2603:10b6:804:c::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2136.16; Mon, 5 Aug 2019 13:55:33 +0000 Received: from BL2NAM02FT022.eop-nam02.prod.protection.outlook.com (2a01:111:f400:7e46::209) by MWHPR03CA0014.outlook.office365.com (2603:10b6:300:117::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2136.14 via Frontend Transport; Mon, 5 Aug 2019 13:55:33 +0000 Received-SPF: Pass (protection.outlook.com: domain of analog.com designates 137.71.25.55 as permitted sender) receiver=protection.outlook.com; client-ip=137.71.25.55; helo=nwd2mta1.analog.com; Received: from nwd2mta1.analog.com (137.71.25.55) by BL2NAM02FT022.mail.protection.outlook.com (10.152.77.153) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2136.14 via Frontend Transport; Mon, 5 Aug 2019 13:55:33 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta1.analog.com (8.13.8/8.13.8) with ESMTP id x75DtUqo016246 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 5 Aug 2019 06:55:30 -0700 Received: from saturn.ad.analog.com (10.48.65.109) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 5 Aug 2019 09:55:32 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH 13/16] net: phy: adin: implement Energy Detect Powerdown mode Date: Mon, 5 Aug 2019 19:54:50 +0300 Message-ID: <20190805165453.3989-14-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190805165453.3989-1-alexandru.ardelean@analog.com> References: <20190805165453.3989-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.55;IPV:NLI;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(136003)(39860400002)(396003)(376002)(346002)(2980300002)(199004)(189003)(1076003)(7636002)(486006)(2616005)(446003)(11346002)(36756003)(336012)(476003)(126002)(47776003)(356004)(50466002)(26005)(4326008)(186003)(54906003)(305945005)(86362001)(478600001)(6666004)(5660300002)(48376002)(50226002)(70586007)(8936002)(316002)(70206006)(8676002)(110136005)(246002)(44832011)(426003)(2906002)(14444005)(2201001)(76176011)(7696005)(106002)(107886003)(2870700001)(51416003);DIR:OUT;SFP:1101;SCL:1;SRVR:SN2PR03MB2192;H:nwd2mta1.analog.com;FPR:;SPF:Pass;LANG:en;PTR:nwd2mail10.analog.com;A:1;MX:1; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 2456e675-b11a-4f92-b510-08d719ac9598 X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(4709080)(1401327)(2017052603328);SRVR:SN2PR03MB2192; X-MS-TrafficTypeDiagnostic: SN2PR03MB2192: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8882; X-Forefront-PRVS: 01208B1E18 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: Vk4O59ueEX1Wry/ndbEJAVHSIxrbjaHpBLkiHMCZIPjBoWHaSng9IJAe2PcI/xxl56ZO/4Q8nasWeHlRlslP908Tda+81uJK2cc05G5yAXqjLSn9ZD22dN5vE3k6J18sBnS8uBybvjFlZTJqIr6CH4oQ8Cvc1A5v026yENVPHxEQ/y6OItfF96xjyrc78/hlo7Rzb3q2bVuDxagSqwF6vOagMfL50lZA5lqwjCHeMeescry4IOHOcUGWXw3q2BarzX9/Dkpi2bYlOe0ypJyiAcoKrRs3CnPNTeFQMpyGqLiCkrbBM+rTjDQ5CJ5Tz8TSqY5jAgP4WeRxdjZigvhMBuI7sg++e3OxN/zp2qge96vCGFRz0O3oVQ3Y6GWsZDH86FSnx2YjNqkbeB7S4SL+JAAfyHCcjaoqGxMmlnPED5c= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Aug 2019 13:55:33.0126 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2456e675-b11a-4f92-b510-08d719ac9598 X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a;Ip=[137.71.25.55];Helo=[nwd2mta1.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN2PR03MB2192 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-08-05_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908050154 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The ADIN PHYs support Energy Detect Powerdown mode, which puts the PHY into a low power mode when there is no signal on the wire (typically cable unplugged). This behavior is enabled by default, but can be disabled via device property. Signed-off-by: Alexandru Ardelean --- drivers/net/phy/adin.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index cf99ccacfeeb..86848444bd98 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -27,6 +27,11 @@ #define ADIN1300_AUTO_MDI_EN BIT(10) #define ADIN1300_MAN_MDIX_EN BIT(9) +#define ADIN1300_PHY_CTRL_STATUS2 0x0015 +#define ADIN1300_NRG_PD_EN BIT(3) +#define ADIN1300_NRG_PD_TX_EN BIT(2) +#define ADIN1300_NRG_PD_STATUS BIT(1) + #define ADIN1300_INT_MASK_REG 0x0018 #define ADIN1300_INT_MDIO_SYNC_EN BIT(9) #define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8) @@ -95,10 +100,12 @@ static struct clause22_mmd_map clause22_mmd_map[] = { * struct adin_priv - ADIN PHY driver private data * gpiod_reset optional reset GPIO, to be used in soft_reset() cb * eee_modes EEE modes to advertise after reset + * edpd_enabled true if Energy Detect Powerdown mode is enabled */ struct adin_priv { struct gpio_desc *gpiod_reset; u8 eee_modes; + bool edpd_enabled; }; static int adin_get_phy_internal_mode(struct phy_device *phydev) @@ -235,6 +242,18 @@ static int adin_config_init_eee(struct phy_device *phydev) return phy_write_mmd(phydev, MDIO_MMD_VEND1, ADIN1300_EEE_ADV_REG, reg); } +static int adin_config_init_edpd(struct phy_device *phydev) +{ + struct adin_priv *priv = phydev->priv; + + if (priv->edpd_enabled) + return phy_set_bits(phydev, ADIN1300_PHY_CTRL_STATUS2, + (ADIN1300_NRG_PD_EN | ADIN1300_NRG_PD_TX_EN)); + + return phy_clear_bits(phydev, ADIN1300_PHY_CTRL_STATUS2, + (ADIN1300_NRG_PD_EN | ADIN1300_NRG_PD_TX_EN)); +} + static int adin_config_init(struct phy_device *phydev) { phy_interface_t interface, rc; @@ -261,6 +280,10 @@ static int adin_config_init(struct phy_device *phydev) if (rc < 0) return rc; + rc = adin_config_init_edpd(phydev); + if (rc < 0) + return rc; + if (phydev->interface == interface) dev_info(&phydev->mdio.dev, "PHY is using mode '%s'\n", phy_modes(phydev->interface)); @@ -535,6 +558,10 @@ static int adin_probe(struct phy_device *phydev) priv->gpiod_reset = gpiod_reset; if (device_property_read_bool(dev, "adi,eee-enabled")) priv->eee_modes = (MDIO_EEE_100TX | MDIO_EEE_1000T); + if (device_property_read_bool(dev, "adi,disable-energy-detect")) + priv->edpd_enabled = false; + else + priv->edpd_enabled = true; phydev->priv = priv; return adin_reset(phydev); -- 2.20.1