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[209.132.180.67]) by mx.google.com with ESMTP id z78si4483576oia.200.2020.03.13.05.50.38; Fri, 13 Mar 2020 05:50:50 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@st.com header.s=STMicroelectronics header.b=0Co1yOfC; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=st.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726833AbgCMMuK (ORCPT + 99 others); Fri, 13 Mar 2020 08:50:10 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:59780 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726534AbgCMMuK (ORCPT ); Fri, 13 Mar 2020 08:50:10 -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 02DClBB5009053; Fri, 13 Mar 2020 13:50:00 +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=j35mJ3ri135kHou00lXuY3AxjlbeJipjZQDtYU8870M=; b=0Co1yOfCyVApMI/AS97ntTQqFT1z0Pf8cuWFQiHfpY7DeLhfUMIVCK7EiLgT3ZA7mB9m AAW1APKTuMfozG32i5vhXB6vD5oNbAX9AvFvLQ9bWtbyrWU71LAPd92cAwPt8Rgxqh/S 8FjDuSBvraZ8Cde7WlDOI3SYYdoR69ZFadrBpcIfxsJ9bErOKo+sZG+v+bHrMGNzlko1 gROem7gFD6CpD6FwP47d/JMMAqHICn+dZwaOaoC2dGSAKX4Hs0hr3SKi3J0/TnPZre9W EKykdUNnZC4o+0PurlE4GVkQGN6ual/pH0YGgvzMuP307tqz4IP71rt31Frhhk6q/ppC ew== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2yqt82gm30-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 13 Mar 2020 13:50:00 +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 5B557100034; Fri, 13 Mar 2020 13:49:56 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 47B572A7F68; Fri, 13 Mar 2020 13:49:56 +0100 (CET) Received: from lmecxl0912.lme.st.com (10.75.127.50) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 13 Mar 2020 13:49:55 +0100 Subject: Re: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1 To: Alain Volmat , , CC: , , , , , , , , References: <1581355041-13845-1-git-send-email-alain.volmat@st.com> From: Alexandre Torgue Message-ID: <9c127dfe-d171-8967-3227-3dafc358277f@st.com> Date: Fri, 13 Mar 2020 13:49:55 +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: <1581355041-13845-1-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: [10.75.127.50] X-ClientProxiedBy: SFHDAG1NODE2.st.com (10.75.127.2) 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 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; > Applied on stm32-next. Thanks. Alex