From patchwork Tue Aug 10 17:29:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 495905 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 B7FA8C432BE for ; Tue, 10 Aug 2021 17:34:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9EAAD6101E for ; Tue, 10 Aug 2021 17:34:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232447AbhHJRei (ORCPT ); Tue, 10 Aug 2021 13:34:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:36356 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232134AbhHJReK (ORCPT ); Tue, 10 Aug 2021 13:34:10 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9418A610E9; Tue, 10 Aug 2021 17:33:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1628616828; bh=BxyRilvOsNR5B8yCmk3oOd0Miex7++8DTbSL15v8jIM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hMshoGpGv0Y2fiAzDMg4UX4Ja8PGvWp2QGxtNH4ODOBD/MG+zp3fNL/oAHQ3+LMeB I1i7gnH4zffczNshODh2lBA3otXo6cgLsebdq0a4iWKOAQdNeshv6aH5wsP7CuV6Ux Hq8+BALFkbgHfTO03/j5bEI4jzjSmMO3H5m23N+U= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?utf-8?q?Pali_Roh=C3=A1r?= , =?utf-8?q?Marek_Beh=C3=BAn?= , "Russell King (Oracle)" , Gregory CLEMENT , Sasha Levin Subject: [PATCH 5.4 10/85] arm64: dts: armada-3720-turris-mox: remove mrvl, i2c-fast-mode Date: Tue, 10 Aug 2021 19:29:43 +0200 Message-Id: <20210810172948.555441367@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210810172948.192298392@linuxfoundation.org> References: <20210810172948.192298392@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 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 874bc3954c8e..025e02d23da9 100644 --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts @@ -118,6 +118,7 @@ pinctrl-names = "default"; pinctrl-0 = <&i2c1_pins>; clock-frequency = <100000>; + /delete-property/ mrvl,i2c-fast-mode; status = "okay"; rtc@6f {