From patchwork Mon Jun 28 12:10:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Pali_Roh=C3=A1r?= X-Patchwork-Id: 468478 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, 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 2AE66C2B9F4 for ; Mon, 28 Jun 2021 12:10:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0A1E161C69 for ; Mon, 28 Jun 2021 12:10:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232858AbhF1MNS (ORCPT ); Mon, 28 Jun 2021 08:13:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:50884 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232933AbhF1MNR (ORCPT ); Mon, 28 Jun 2021 08:13:17 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 24EE161C49; Mon, 28 Jun 2021 12:10:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624882252; bh=hsJq4K0UQ3estcFibPEXpVe1Nv88MXs/+qqxawzOhRA=; h=From:To:Cc:Subject:Date:From; b=uIjOf7bJMdxmc2t375ISss25RTVzbzHsiMEPv2P0ql5aUoNpaN1TapTQ7XrsZoxb4 FmPH7fWnwS363O/j+8BwgFoeh/p296Ysq+o0oe39c7Pjdw94/SgMoWVTBx7vRJASm2 3mGyp/cGGqGddC1RHccFv6Mtq8qEnZPRJrZwmTwQ+O0bQosOku2N57JpgrdrtUIGip 9uK+xRqlv5wqzAtnByrf23IwZyMBsdim68G1PWlbDA4k+ERpZV9bYlu7UU3Rsx6x43 7pYrl7n2IFPI/p/dPwX4AS4c01czhmI1EEA8ICefL0aZNY0gjh8JCqjOjNDFDy7kBa QGqOnkevPWkTQ== Received: by pali.im (Postfix) id D3AD170A; Mon, 28 Jun 2021 14:10:49 +0200 (CEST) From: =?utf-8?q?Pali_Roh=C3=A1r?= To: Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Rob Herring , =?utf-8?q?Marek_Beh=C3=BAn?= , Russell King Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: armada-3720-turris-mox.dts: remove mrvl, i2c-fast-mode Date: Mon, 28 Jun 2021 14:10:15 +0200 Message-Id: <20210628121015.22660-1-pali@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 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 --- 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 6bcc319a0161..27ded36a1a13 100644 --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts @@ -119,6 +119,7 @@ pinctrl-names = "default"; pinctrl-0 = <&i2c1_pins>; clock-frequency = <100000>; + /delete-property/mrvl,i2c-fast-mode; status = "okay"; rtc@6f {