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=-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 BA377C4320E for ; Tue, 10 Aug 2021 17:39:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BE2D61158 for ; Tue, 10 Aug 2021 17:39:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233845AbhHJRkN (ORCPT ); Tue, 10 Aug 2021 13:40:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:59726 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235309AbhHJRja (ORCPT ); Tue, 10 Aug 2021 13:39:30 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 43BA861158; Tue, 10 Aug 2021 17:37:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1628617029; bh=cYh35sPKtNf/rjuk2SmiDsgZg/S0Q5uA9gnr0wKlDjk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=w2lNFHlIb+WZfqJoJ5Gds2vfuE3zrWh+kZh0thzc/SE7Z6+V8hueJtliiLZ8VMM9T WqH9O1RMwpTtCesm2H2aQiYfxPQecMMtR/rOnNv0nqpkIBIiNc2sPwu/C0We+jRojW J+WyqVzx8mb1l58s1weUpcB3+xrP6hacs7cxnEvg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Pali=20Roh=C3=A1r?= , =?UTF-8?q?Marek=20Beh=C3=BAn?= , "Russell King (Oracle)" , Gregory CLEMENT , Sasha Levin Subject: [PATCH 5.10 014/135] arm64: dts: armada-3720-turris-mox: remove mrvl,i2c-fast-mode Date: Tue, 10 Aug 2021 19:29:08 +0200 Message-Id: <20210810172956.160656020@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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Pali Rohár [ Upstream commit ee7ab3f263f8131722cff3871b9618b1e7478f07 ] Some SFP modules are not detected when i2c-fast-mode is enabled even when clock-frequency is already set to 100000. The I2C bus violates the timing specifications when run in fast mode. So disable fast mode on Turris Mox. Same change was already applied for uDPU (also Armada 3720 board with SFP) in commit fe3ec631a77d ("arm64: dts: uDPU: remove i2c-fast-mode"). Fixes: 7109d817db2e ("arm64: dts: marvell: add DTS for Turris Mox") Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Acked-by: Russell King (Oracle) Signed-off-by: Gregory CLEMENT Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts index 2d51c6f3915d..bbd34ae12a53 100644 --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts @@ -120,6 +120,7 @@ pinctrl-names = "default"; pinctrl-0 = <&i2c1_pins>; clock-frequency = <100000>; + /delete-property/ mrvl,i2c-fast-mode; status = "okay"; rtc@6f { -- 2.30.2