From patchwork Mon Mar 15 13:54:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 401534 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=-19.0 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 81FCAC43331 for ; Mon, 15 Mar 2021 13:59:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5D08264F38 for ; Mon, 15 Mar 2021 13:59:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231564AbhCON6l (ORCPT ); Mon, 15 Mar 2021 09:58:41 -0400 Received: from mail.kernel.org ([198.145.29.99]:35904 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232176AbhCON5y (ORCPT ); Mon, 15 Mar 2021 09:57:54 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 80FC264F46; Mon, 15 Mar 2021 13:57:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816673; bh=NA7KxTzMwB/3fc+2h+6SWGrMvXG17Xc0AhBUCDyRlew=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OhYQ4ZUG6hYfkFCVQM6TasYGt0iyDQ4Vj3AABy0FzoVy0GjUWmxHoyrrd0CL5E4Kq x/JR6HShI3yCDJVbYsORztX8PE0aCGOn8TZPsfuIkJTeVdn6Z+vqcRd/BhQfkAkuDv XNnuh5Go5d1eGwOdsSq7QndJrbdYBiL8rIqJFNdQ= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Joakim Zhang , Jakub Kicinski Subject: [PATCH 5.4 039/168] net: stmmac: stop each tx channel independently Date: Mon, 15 Mar 2021 14:54:31 +0100 Message-Id: <20210315135551.631141231@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135550.333963635@linuxfoundation.org> References: <20210315135550.333963635@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Joakim Zhang commit a3e860a83397bf761ec1128a3f0ba186445992c6 upstream. If clear GMAC_CONFIG_TE bit, it would stop all tx channels, but users may only want to stop specific tx channel. Fixes: 48863ce5940f ("stmmac: add DMA support for GMAC 4.xx") Signed-off-by: Joakim Zhang Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 4 ---- 1 file changed, 4 deletions(-) --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c @@ -60,10 +60,6 @@ void dwmac4_dma_stop_tx(void __iomem *io value &= ~DMA_CONTROL_ST; writel(value, ioaddr + DMA_CHAN_TX_CONTROL(chan)); - - value = readl(ioaddr + GMAC_CONFIG); - value &= ~GMAC_CONFIG_TE; - writel(value, ioaddr + GMAC_CONFIG); } void dwmac4_dma_start_rx(void __iomem *ioaddr, u32 chan)