From patchwork Mon Jun 28 15:12:29 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: 468075 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 AA08BC2B9F4 for ; Mon, 28 Jun 2021 15:14:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BE1361206 for ; Mon, 28 Jun 2021 15:14:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236280AbhF1PQ7 (ORCPT ); Mon, 28 Jun 2021 11:16:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:45464 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238024AbhF1PPP (ORCPT ); Mon, 28 Jun 2021 11:15:15 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5548661206; Mon, 28 Jun 2021 15:12:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624893169; bh=mKc+DGVUwwP3w69Df4E2RuWvYSvZU8sQpDkg3+zmHdQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mj02hJ2U7DYOg1g9bW0KTyxbl1p3cDsRZs+m9IJNiri7W3tj2aDZhHBBtma9t5Knb wIHyLhtsOHvdFjr18q0P7VNAucSu68J9B0Ml5R0XNMMiYPJN67xN16QTOTqzd4babm 53h2k2waAxLt3pciV5PyVhTekkQofqaOLRZ9VSd7iwo6+A7s52wWQg+l5doQWj7/wD L88K/Be8vmXy8XM6X7f9/O+x9OO4Xd+bBuaT7ukFUcA/Myc56dvFxMhOzrJWdPDPJd smAnU3PhpVWCgFiD3PHPV9yadjSFaGXp58StngFGRBPmTEwKK+Zioyh0DLyBA2oAnY uBA+sSOKC3ikQ== Received: by pali.im (Postfix) id 43D0070A; Mon, 28 Jun 2021 17:12:47 +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 v2] arm64: dts: armada-3720-turris-mox: remove mrvl, i2c-fast-mode Date: Mon, 28 Jun 2021 17:12:29 +0200 Message-Id: <20210628151229.25214-1-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210628121015.22660-1-pali@kernel.org> References: <20210628121015.22660-1-pali@kernel.org> 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 Reviewed-by: Marek Behún --- 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..85f15f2a4740 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 {