From patchwork Mon Feb 10 17:17:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 1235919 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=st.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=st.com header.i=@st.com header.a=rsa-sha256 header.s=STMicroelectronics header.b=btT6vR23; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48GXfR75m3z9sP7 for ; Tue, 11 Feb 2020 04:17:51 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727558AbgBJRRv (ORCPT ); Mon, 10 Feb 2020 12:17:51 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:47581 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727121AbgBJRRv (ORCPT ); Mon, 10 Feb 2020 12:17:51 -0500 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 01AHCacB020390; Mon, 10 Feb 2020 18:17:41 +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=Gq7vJ2L+cJyVm4rmoT7oKXQ1Aw3N9qOaHWBxs8THbRs=; b=btT6vR23wvTlVbWtdcOSCzHrAjP54x13DJkDPyQxkctmWOgapPdWwvf/qrAf5N4w2ky7 3kNGw9AEwNLePY21c0dhegafyhaLu3jUKaK6mu8Wr7MQcVoASGick/FFM++IA4K7yNwG dNMny5m8mlhk4NCaGmKuHdsTea1Ij7rzwx+JCIVu3fdeDDJdQ8XPjuyGMdDt7cn8lTXh vD/bvE8pDU8kkovgtK0yUjoNBUzSMPqZvfIApjjb5K4VTW1H/CnfDBn5zjR8fkhW9Zpu GnjMIvJ9xfGUZj9en2anUbbpwSs7i0ISNrXK3PDnoGxE+gjTysr/92fR0EgWdAoI0UVO uA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2y1urgv0a9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 10 Feb 2020 18:17:41 +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 DEB1B10002A; Mon, 10 Feb 2020 18:17:36 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id CE4A32C60B3; Mon, 10 Feb 2020 18:17:36 +0100 (CET) Received: from localhost (10.75.127.44) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 10 Feb 2020 18:17:36 +0100 From: Alain Volmat To: , CC: , , , , , , , , , , Subject: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp15 DK boards Date: Mon, 10 Feb 2020 18:17:36 +0100 Message-ID: <1581355056-13884-1-git-send-email-alain.volmat@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG5NODE3.st.com (10.75.127.15) 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: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org 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;