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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,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 B62CDC3526C for ; Sat, 19 Dec 2020 13:07:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8044B23B27 for ; Sat, 19 Dec 2020 13:07:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727645AbgLSM6e (ORCPT ); Sat, 19 Dec 2020 07:58:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:45104 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727623AbgLSM6d (ORCPT ); Sat, 19 Dec 2020 07:58:33 -0500 From: Greg Kroah-Hartman Authentication-Results: mail.kernel.org; dkim=permerror (bad message/signature format) To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Fugang Duan , Joakim Zhang , "David S. Miller" Subject: [PATCH 5.9 15/49] net: stmmac: start phylink instance before stmmac_hw_setup() Date: Sat, 19 Dec 2020 13:58:19 +0100 Message-Id: <20201219125345.424895485@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201219125344.671832095@linuxfoundation.org> References: <20201219125344.671832095@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Fugang Duan [ Upstream commit 36d18b5664ef617ccf4da266291d2f2342fab89d ] Start phylink instance and resume back the PHY to supply RX clock to MAC before MAC layer initialization by calling .stmmac_hw_setup(), since DMA reset depends on the RX clock, otherwise DMA reset cost maximum timeout value then finally timeout. Fixes: 74371272f97f ("net: stmmac: Convert to phylink and remove phylib logic") Signed-off-by: Fugang Duan Signed-off-by: Joakim Zhang Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5170,6 +5170,14 @@ int stmmac_resume(struct device *dev) return ret; } + if (!device_may_wakeup(priv->device) || !priv->plat->pmt) { + rtnl_lock(); + phylink_start(priv->phylink); + /* We may have called phylink_speed_down before */ + phylink_speed_up(priv->phylink); + rtnl_unlock(); + } + rtnl_lock(); mutex_lock(&priv->lock); @@ -5188,14 +5196,6 @@ int stmmac_resume(struct device *dev) mutex_unlock(&priv->lock); rtnl_unlock(); - if (!device_may_wakeup(priv->device) || !priv->plat->pmt) { - rtnl_lock(); - phylink_start(priv->phylink); - /* We may have called phylink_speed_down before */ - phylink_speed_up(priv->phylink); - rtnl_unlock(); - } - phylink_mac_change(priv->phylink, true); netif_device_attach(ndev);