From patchwork Tue Aug 10 17:28:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 495790 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 D7A83C432BE for ; Tue, 10 Aug 2021 17:52:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BA2FA61073 for ; Tue, 10 Aug 2021 17:52:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235798AbhHJRw1 (ORCPT ); Tue, 10 Aug 2021 13:52:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:43222 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237312AbhHJRuW (ORCPT ); Tue, 10 Aug 2021 13:50:22 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 08FF26126A; Tue, 10 Aug 2021 17:42:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1628617353; bh=31txEqwTPGPHZrDBtM17rzjaqa5l+sdEscuwlIenaME=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VGdP+qOv1bjCmfl5Iq7AOSqdhbkxz/KWyqyCuWZiyVSKpSWHLFxEIGX3m2FKCHqS8 hig1StnmN+mUxfYjFyRnQ1nTF16544CbKXOKKkDZ0Rz7FcZ74KDZYDzZfXKWK2c5Na oyCSGLxeamXmpJaTTQAfLo614+PhZYDpbxCP+BHw= 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 5.13 021/175] arm64: dts: armada-3720-turris-mox: remove mrvl, i2c-fast-mode Date: Tue, 10 Aug 2021 19:28:49 +0200 Message-Id: <20210810173001.653424072@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: 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 f2d7d6f071bc..a05b1ab2dd12 100644 --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts @@ -121,6 +121,7 @@ pinctrl-names = "default"; pinctrl-0 = <&i2c1_pins>; clock-frequency = <100000>; + /delete-property/ mrvl,i2c-fast-mode; status = "okay"; rtc@6f {