From patchwork Wed Mar 25 18:36:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 202814 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=-9.8 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_GIT 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 1FCA2C2D0E6 for ; Wed, 25 Mar 2020 18:36:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF80E207FF for ; Wed, 25 Mar 2020 18:36:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="KyhnQZJG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727174AbgCYSg1 (ORCPT ); Wed, 25 Mar 2020 14:36:27 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:56300 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727027AbgCYSg0 (ORCPT ); Wed, 25 Mar 2020 14:36:26 -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 02PINxBN028146; Wed, 25 Mar 2020 19:36:11 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=yzLGGuVlSt0I73Fh9RExQePxW20ZdZu6hbmfVVeMKVY=; b=KyhnQZJG+xwUvOeqGqNXid4+uOImL0CvPMwRCkYXIPTD9PQXRqW2dRDL3lCg9iZsZcgE dPn/PlF0+y+cgno+8BzJMw5ADpr7DXpcKKBxLUQQlf9pA6DQOnuUNTsJ9Yoe4amjGgXM qEMPIwCxNNBYQHjvsXCN5na9jVHGKM0Pt06SaMxdSz0v4u4V8GRZ8FemsAIIqt+4fImM HJQZSkOWfv1CdnN5RAkkF4F28alNG0Azd76MeDSpT51QBW5e8XUtSVdLdiGDHs/YmG9W lrcDt5VMMFPNS4SbbwqCAfYLEoP8Nc9lqCtxu3sPmmXBtPvQfk91HReSDfbBX/Vk9UJI SA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2ywapp72t2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 25 Mar 2020 19:36:11 +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 278FF100034; Wed, 25 Mar 2020 19:36:11 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 1B3E42AD2DB; Wed, 25 Mar 2020 19:36:11 +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; Wed, 25 Mar 2020 19:36:10 +0100 From: Alain Volmat To: , CC: , , , , , , , , , , Subject: [PATCH 1/2] dt-bindings: i2c: i2c-stm32f7: allow clock-frequency range Date: Wed, 25 Mar 2020 19:36:00 +0100 Message-ID: <1585161361-3408-2-git-send-email-alain.volmat@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1585161361-3408-1-git-send-email-alain.volmat@st.com> References: <1585161361-3408-1-git-send-email-alain.volmat@st.com> 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, 18.0.645 definitions=2020-03-25_09:2020-03-24,2020-03-25 signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org For STM32F7, STM32H7 and STM32MP1 SoCs, if timing parameters match, the bus clock frequency can be from 1Hz to 1MHz. Signed-off-by: Alain Volmat --- Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml index 900ec1ab6a47..b50a2f420b36 100644 --- a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml @@ -80,11 +80,11 @@ properties: clock-frequency: description: Desired I2C bus clock frequency in Hz. If not specified, the default 100 kHz frequency will be used. - For STM32F7, STM32H7 and STM32MP1 SoCs, Standard-mode, - Fast-mode and Fast-mode Plus are supported, possible - values are 100000, 400000 and 1000000. + For STM32F7, STM32H7 and STM32MP1 SoCs, if timing parameters + match, the bus clock frequency can be from 1Hz to 1MHz. default: 100000 - enum: [100000, 400000, 1000000] + minimum: 1 + maximum: 1000000 required: - compatible