From patchwork Tue Aug 10 17:29:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 495052 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=-19.5 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, URIBL_BLOCKED, 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 A57CFC4320A for ; Tue, 10 Aug 2021 17:41:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8772461106 for ; Tue, 10 Aug 2021 17:41:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234846AbhHJRlj (ORCPT ); Tue, 10 Aug 2021 13:41:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:43252 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234150AbhHJRjw (ORCPT ); Tue, 10 Aug 2021 13:39:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A0BC0610FD; Tue, 10 Aug 2021 17:37:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1628617061; bh=HpJ+F8ebKBDZUBOjMQ7CcFLgdG6fDfmvB4EIhCoNFik=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qj8NVxFrkusNO4cE57BeCilV1cYvkgbiWTBu4zKYv+CGA9tGW7/5XWahjlcut/DPw PGjQIqDoT1hjGWIAKJ8/hlbWTM4MrWx1smxyRO3ZdBbvfmfMxKNtkPb8A8nf27CJ40 TsgSSgqThMcaZXKIste0BQgSSK4UR2WCUk05TVvU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Marek Vasut , Alexandre Torgue , Patrice Chotard , Patrick Delaunay , linux-stm32@st-md-mailman.stormreply.com, Sasha Levin Subject: [PATCH 5.10 027/135] ARM: dts: stm32: Disable LAN8710 EDPD on DHCOM Date: Tue, 10 Aug 2021 19:29:21 +0200 Message-Id: <20210810172956.599446244@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210810172955.660225700@linuxfoundation.org> References: <20210810172955.660225700@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Marek Vasut [ Upstream commit 36862c1ebc92a7e6fcc55002965c44b8ad17d4ca ] The LAN8710 Energy Detect Power Down (EDPD) functionality might cause unreliable cable detection. There are multiple accounts of this in the SMSC PHY driver patches which attempted to make EDPD reliable, however it seems there is always some sort of corner case left. Unfortunatelly, there is no errata documented which would confirm this to be a silicon bug on the LAN87xx series of PHYs (LAN8700, LAN8710, LAN8720 at least). Disable EDPD on the DHCOM SoM, just like multiple other boards already do as well, to make the cable detection reliable. Fixes: 34e0c7847dcf ("ARM: dts: stm32: Add DH Electronics DHCOM STM32MP1 SoM and PDK2 board") Signed-off-by: Marek Vasut Cc: Alexandre Torgue Cc: Patrice Chotard Cc: Patrick Delaunay Cc: linux-stm32@st-md-mailman.stormreply.com To: linux-arm-kernel@lists.infradead.org Signed-off-by: Alexandre Torgue Signed-off-by: Sasha Levin --- arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi index 8221bf69fefe..000af7177701 100644 --- a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi +++ b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi @@ -133,6 +133,7 @@ reset-gpios = <&gpioh 3 GPIO_ACTIVE_LOW>; reset-assert-us = <500>; reset-deassert-us = <500>; + smsc,disable-energy-detect; interrupt-parent = <&gpioi>; interrupts = <11 IRQ_TYPE_LEVEL_LOW>; };