From patchwork Mon Mar 1 16:12:00 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: 389195 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=-18.8 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 275B6C433E0 for ; Mon, 1 Mar 2021 20:17:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D020864E76 for ; Mon, 1 Mar 2021 20:17:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242914AbhCAUQu (ORCPT ); Mon, 1 Mar 2021 15:16:50 -0500 Received: from mail.kernel.org ([198.145.29.99]:38524 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239596AbhCAUGB (ORCPT ); Mon, 1 Mar 2021 15:06:01 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id ECE7864F58; Mon, 1 Mar 2021 17:58:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614621537; bh=9gryNzoOiLzEah55G3bfCjxzAxuy2v+KmEf+keOf3jc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LG7vYbEGXyuAtiCMm6/QAInnpgymMAytUsHFUXk8xz1fGJfoCZ46bseqk4vu66vOy ivyYmjEvfbenjKz4a+WhO9mUAT3buLGTyPy5nVSA22BshBNvnL9pr/gTyyj1fMRrti PwJK/rCYL+XMZ00JlNRE0dFyrFIZcjhXFfQcyUD4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christian Melki , Andrew Lunn , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.11 552/775] net: phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ8081 Date: Mon, 1 Mar 2021 17:12:00 +0100 Message-Id: <20210301161228.761716968@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161201.679371205@linuxfoundation.org> References: <20210301161201.679371205@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christian Melki [ Upstream commit 764d31cacfe48440745c4bbb55a62ac9471c9f19 ] Following a similar reinstate for the KSZ9031. Older kernels would use the genphy_soft_reset if the PHY did not implement a .soft_reset. Bluntly removing that default may expose a lot of situations where various PHYs/board implementations won't recover on various changes. Like with this implementation during a 4.9.x to 5.4.x LTS transition. I think it's a good thing to remove unwanted soft resets but wonder if it did open a can of worms? Atleast this fixes one iMX6 FEC/RMII/8081 combo. Fixes: 6e2d85ec0559 ("net: phy: Stop with excessive soft reset") Signed-off-by: Christian Melki Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/20210224205536.9349-1-christian.melki@t2data.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/phy/micrel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 54e0d75203dac..57f8021b70af5 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -1295,6 +1295,7 @@ static struct phy_driver ksphy_driver[] = { .driver_data = &ksz8081_type, .probe = kszphy_probe, .config_init = ksz8081_config_init, + .soft_reset = genphy_soft_reset, .config_intr = kszphy_config_intr, .handle_interrupt = kszphy_handle_interrupt, .get_sset_count = kszphy_get_sset_count,