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=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 A2FE2C43461 for ; Wed, 5 May 2021 16:35:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92CD86187E for ; Wed, 5 May 2021 16:35:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234983AbhEEQgS (ORCPT ); Wed, 5 May 2021 12:36:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:53558 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234617AbhEEQeN (ORCPT ); Wed, 5 May 2021 12:34:13 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3AABD6142D; Wed, 5 May 2021 16:32:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620232358; bh=X3FQxJdww4G9BL4nHozkNPwQLtFFvOmKCWJyeQ5Rj5g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KvP3uw7w5w46hxi6MnpsHt8JV9u/L68r5zCn6kOKpaD+oGiRsweST4fecV0G+LB7g 1fizDza7H40EHqqqMDmvVeLqDql4n6fYAG+V5eZWPkA9FPT+Pjd6fah2Co9fT6SFwN kK9STm0HhXIjYJnGUyKCZhozPeNpMLie/4A2HrQeIYadX/0rzhZUwjaRBPZ/OftoJx ajr3m0AcA1/y11UMbSJTTB2Z5yhsiWdtCGUdLhWWTUdLJPn1Z4w+xcT1e54WCCZMNh Kg3I5DWrOu1RjS1yh+xwuWVD4/ICJuDfjxvtNCdQEOGWnsVcx4WD67+DeGOdhFWtsi ymEWDSkLq2zmQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Heiner Kallweit , Joakim Zhang , Jakub Kicinski , Sasha Levin , netdev@vger.kernel.org Subject: [PATCH AUTOSEL 5.12 053/116] net: fec: use mac-managed PHY PM Date: Wed, 5 May 2021 12:30:21 -0400 Message-Id: <20210505163125.3460440-53-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210505163125.3460440-1-sashal@kernel.org> References: <20210505163125.3460440-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Heiner Kallweit [ Upstream commit 557d5dc83f6831b4e54d141e9b121850406f9a60 ] Use the new mac_managed_pm flag to work around an issue with KSZ8081 PHY that becomes unstable when a soft reset is triggered during aneg. Reported-by: Joakim Zhang Tested-by: Joakim Zhang Signed-off-by: Heiner Kallweit Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/freescale/fec_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 3db882322b2b..70aea9c274fe 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -2048,6 +2048,8 @@ static int fec_enet_mii_probe(struct net_device *ndev) fep->link = 0; fep->full_duplex = 0; + phy_dev->mac_managed_pm = 1; + phy_attached_info(phy_dev); return 0; @@ -3864,6 +3866,7 @@ static int __maybe_unused fec_resume(struct device *dev) netif_device_attach(ndev); netif_tx_unlock_bh(ndev); napi_enable(&fep->napi); + phy_init_hw(ndev->phydev); phy_start(ndev->phydev); } rtnl_unlock(); -- 2.30.2