From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.3 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,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 E8D58C4CECE for ; Fri, 13 Mar 2020 12:50:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C1D1620746 for ; Fri, 13 Mar 2020 12:50:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="vsgXryl3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726861AbgCMMuV (ORCPT ); Fri, 13 Mar 2020 08:50:21 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:59864 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726534AbgCMMuV (ORCPT ); Fri, 13 Mar 2020 08:50:21 -0400 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02DClBBG009053; Fri, 13 Mar 2020 13:50:12 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=STMicroelectronics; bh=r4gx10/wtvNnRN5cGMpKMfyjngW05Zoe7Hit39sNOOI=; b=vsgXryl3gsHhysTHeFNVOvbdWiNlUdW0cEZqWoEBwuAtx9dMlhCnEfi1/5P/RApZgbKE cFQh5E/t/8unfbgFBVUzql5SDo5MBvM6I92G1WOpcqjzWwUcJsjgB2LhIUPkGK4XAsAv Phah9YYFe5kZnCjZgQkj8JUuhs3kjHxLI1jtmZ4X4Z/Iz2wLi6CJrJB2Z7fV6t3001op e7fXivhc9aGBE8JH6UpU/GXsCjU9aIsEtIr3Kfu4xCVIFDQVDiNHsKmwRPBY9eHrOq+j 6ez0T8BGwCkFOybaUdKVuy2LE/0Qp96LR8FnLJIjTdqUvD/xY93n7gDmmsPenQDO7olc og== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2yqt82gm58-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 13 Mar 2020 13:50:12 +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 E27DF100038; Fri, 13 Mar 2020 13:50:11 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id CED582A7F68; Fri, 13 Mar 2020 13:50:11 +0100 (CET) Received: from lmecxl0912.lme.st.com (10.75.127.48) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 13 Mar 2020 13:50:10 +0100 Subject: Re: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp15 DK boards To: Alain Volmat , , CC: , , , , , , , , References: <1581355056-13884-1-git-send-email-alain.volmat@st.com> From: Alexandre Torgue Message-ID: <7f8a5f6d-4d62-3649-efda-3d02f89a4d07@st.com> Date: Fri, 13 Mar 2020 13:50:10 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <1581355056-13884-1-git-send-email-alain.volmat@st.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) 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=2020-03-13_04:2020-03-12,2020-03-13 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Alain On 2/10/20 6:17 PM, Alain Volmat wrote: > On DK boards, all I2C4 bus slaves supports I2C Fast Mode hence setting > the bus frequency to 400 KHz. > > Signed-off-by: Alain Volmat > --- > arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi > index 7f5fcb2c5b03..2521f428ae67 100644 > --- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi > +++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi > @@ -221,6 +221,7 @@ > pinctrl-1 = <&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; > Applied on stm32-next. Thanks. Alex