From patchwork Tue Aug 10 17:29:05 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: 495785 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 C386FC4320A for ; Tue, 10 Aug 2021 17:53:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F16961058 for ; Tue, 10 Aug 2021 17:53:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236728AbhHJRxV (ORCPT ); Tue, 10 Aug 2021 13:53:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:47786 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236066AbhHJRvS (ORCPT ); Tue, 10 Aug 2021 13:51:18 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6516D6134F; Tue, 10 Aug 2021 17:43:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1628617387; bh=QqPqNY2AxtVBbhsnUtXt1Zx++AmNMFlyXVZKAyqYUhk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YB1mfAMGHZPOsFupnzLjPmcNhSmQegpf5yuSWH38EA2P4YgTZ+4Wi3m9H5GlLu0FX 2KUAdTu9jVdC9GF1KiXoKacI9AxgE7rcCQa9IjMVbU0LRwWSEEH3Dn7e6A5NfCW4R9 4XaBuQo3SchmyNOx+d6kM8JLl/Fto2seoaCEJhDg= 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 5.13 037/175] ARM: dts: stm32: Disable LAN8710 EDPD on DHCOM Date: Tue, 10 Aug 2021 19:29:05 +0200 Message-Id: <20210810173002.177092701@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210810173000.928681411@linuxfoundation.org> References: <20210810173000.928681411@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 8349c9099e30..8c41f819f776 100644 --- a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi +++ b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi @@ -140,6 +140,7 @@ 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>; };