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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 7DFA8C5CFC0 for ; Mon, 18 Jun 2018 09:02:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 413F620874 for ; Mon, 18 Jun 2018 09:02:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 413F620874 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967436AbeFRJCd (ORCPT ); Mon, 18 Jun 2018 05:02:33 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:35042 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967076AbeFRIcr (ORCPT ); Mon, 18 Jun 2018 04:32:47 -0400 Received: from localhost (LFbn-1-12247-202.w90-92.abo.wanadoo.fr [90.92.61.202]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id AB5A4C9F; Mon, 18 Jun 2018 08:32:41 +0000 (UTC) From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jingju Hou , Jisheng Zhang , "David S. Miller" , Sasha Levin Subject: [PATCH 4.14 054/189] net: phy: marvell: clear wol event before setting it Date: Mon, 18 Jun 2018 10:12:30 +0200 Message-Id: <20180618081211.502918854@linuxfoundation.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180618081209.254234434@linuxfoundation.org> References: <20180618081209.254234434@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jingju Hou [ Upstream commit b6a930fa88083b41d26ddf1cab95cbd740936c22 ] If WOL event happened once, the LED[2] interrupt pin will not be cleared unless we read the CSISR register. If interrupts are in use, the normal interrupt handling will clear the WOL event. Let's clear the WOL event before enabling it if !phy_interrupt_is_valid(). Signed-off-by: Jingju Hou Signed-off-by: Jisheng Zhang Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/phy/marvell.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -1409,6 +1409,15 @@ static int m88e1318_set_wol(struct phy_d if (err < 0) return err; + /* If WOL event happened once, the LED[2] interrupt pin + * will not be cleared unless we reading the interrupt status + * register. If interrupts are in use, the normal interrupt + * handling will clear the WOL event. Clear the WOL event + * before enabling it if !phy_interrupt_is_valid() + */ + if (!phy_interrupt_is_valid(phydev)) + phy_read(phydev, MII_M1011_IEVENT); + /* Enable the WOL interrupt */ temp = phy_read(phydev, MII_88E1318S_PHY_CSIER); temp |= MII_88E1318S_PHY_CSIER_WOL_EIE;