From patchwork Thu May 20 09:21:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 444394 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, 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 6BCF2C43618 for ; Thu, 20 May 2021 10:09:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 50B5361D62 for ; Thu, 20 May 2021 10:09:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232754AbhETKKV (ORCPT ); Thu, 20 May 2021 06:10:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:42308 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235672AbhETKHZ (ORCPT ); Thu, 20 May 2021 06:07:25 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5883A61945; Thu, 20 May 2021 09:41:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621503709; bh=D+bkgRJxQO/b+9lGgmG3j2SvcHf6Wk6c7K2LayJa5OQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=doSPsqgvEJd6gNlvAuP043gLJNxz9AdYCeRKFfdIdWBuywIOpx4NwNe8AwYaXosp1 2DhQjMOksXJ5fHAov3RjPpHCmf6ZbxaW30/j/bRJ4bvrQYpsco9lwTEzOy0GeDR3Po xmLj2Rguw68RylQiugIWv7H6SQELJYMtcIVrebEk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yufeng Mo , Huazhong Tan , "David S. Miller" , Sasha Levin Subject: [PATCH 4.19 345/425] net: hns3: disable phy loopback setting in hclge_mac_start_phy Date: Thu, 20 May 2021 11:21:54 +0200 Message-Id: <20210520092142.749544235@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092131.308959589@linuxfoundation.org> References: <20210520092131.308959589@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yufeng Mo [ Upstream commit 472497d0bdae890a896013332a0b673f9acdf2bf ] If selftest and reset are performed at the same time, the phy loopback setting may be still in enable state after the reset, and device cannot link up. So fix this issue by disabling phy loopback before phy_start(). Fixes: 256727da7395 ("net: hns3: Add MDIO support to HNS3 Ethernet driver for hip08 SoC") Signed-off-by: Yufeng Mo Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c index 03491e8ebb73..d0fa344f0a84 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c @@ -235,6 +235,8 @@ void hclge_mac_start_phy(struct hclge_dev *hdev) if (!phydev) return; + phy_loopback(phydev, false); + phy_start(phydev); }