From patchwork Mon Feb 10 17:17:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 204968 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=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,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 6F5FAC352A3 for ; Mon, 10 Feb 2020 17:17:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3AF0620715 for ; Mon, 10 Feb 2020 17:17:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="vIX3qFh3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727910AbgBJRRg (ORCPT ); Mon, 10 Feb 2020 12:17:36 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:28852 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727121AbgBJRRg (ORCPT ); Mon, 10 Feb 2020 12:17:36 -0500 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 01AHEAmv010505; Mon, 10 Feb 2020 18:17:22 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=STMicroelectronics; bh=Bz8h5qkb0zpjw1HFvVpIPJZK+9cjPLGnvR32+IgzkF8=; b=vIX3qFh3OoX85SuggQADVj3C/fCXOvwDsmsStcfljo1+kq9tHHFghyRRqZrTZ1lkLgxK 7oatmogpU/Q/7wDFxU2OjAYoTEQeWKBBSvadHsmLdAC+Q1AI+K1xiDnbWFLGPTg3CtGN 1JxDjJOVCAw1pAXwmEqJktmKfcrcEGELqwqSc3wMst8L6RzdMSXYI1kgAjgeDTDm4soV V34X/x+N8zfzCM5qKQbhn2TZ4RVFGETsVdPV3W45Jar1VOcQyI2toxxMto40ekfvvrBz PbpKMvD2wi5lPmGP8mGTF4SpQhGfLWCM6ScnRUf++F5XmYgpeezoW3dhfyKiL+rliUHS JA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2y1ufgv4vw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 10 Feb 2020 18:17:22 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 0855510002A; Mon, 10 Feb 2020 18:17:22 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id E67912C60B3; Mon, 10 Feb 2020 18:17:21 +0100 (CET) Received: from localhost (10.75.127.47) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 10 Feb 2020 18:17:21 +0100 From: Alain Volmat To: , CC: , , , , , , , , , , Subject: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1 Date: Mon, 10 Feb 2020 18:17:21 +0100 Message-ID: <1581355041-13845-1-git-send-email-alain.volmat@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.75.127.47] X-ClientProxiedBy: SFHDAG8NODE2.st.com (10.75.127.23) To SFHDAG3NODE2.st.com (10.75.127.8) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-02-10_06:2020-02-10,2020-02-10 signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On this board, the I2C4 bus has only a single slave (pmic) which supports I2C Fast Mode hence setting bus frequency to 400 KHz. Signed-off-by: Alain Volmat --- arch/arm/boot/dts/stm32mp157c-ed1.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts index 209dae010be4..ac4f7ee4ad55 100644 --- a/arch/arm/boot/dts/stm32mp157c-ed1.dts +++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts @@ -135,6 +135,7 @@ pinctrl-0 = <&i2c4_pins_sleep_a>; i2c-scl-rising-time-ns = <185>; i2c-scl-falling-time-ns = <20>; + clock-frequency = <400000>; status = "okay"; /* spare dmas for other usage */ /delete-property/dmas;