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[23.128.96.18]) by mx.google.com with ESMTP id h17si14133569ejd.655.2020.07.22.05.13.36; Wed, 22 Jul 2020 05:13:59 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@st.com header.s=STMicroelectronics header.b=eVIhmJTF; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 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 S1732139AbgGVMKb (ORCPT + 99 others); Wed, 22 Jul 2020 08:10:31 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:1821 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726462AbgGVMKa (ORCPT ); Wed, 22 Jul 2020 08:10:30 -0400 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 06MC2OTE002090; Wed, 22 Jul 2020 14:09:57 +0200 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=vmdNwJ2HewNJLb/ngps5jILq7qbplk1hGoHXd/4wx9c=; b=eVIhmJTFr0bJmK4xQaclpzupG/RzTS98PjSvZWg1AYKan2EwyZHAKFAUT64zwIq1v7+Y fRhyDNJjSSbzUCTsDVyvqv6G46Ad9m1r2BYKO45XWiB4qQ8JswNJxbreqBCRXRH0IL8D H7emYCy1txezRsja1aQ+XNgXqgmL8ju+eeKe+viEO927B4/YrudVtC/V8lhkOAIEZ73d 3FGHuRqsdpP7oww5oaevtuPtWNuvL5fX23UY7f2XPqWLqzs3iAoy9135b3Mv9hcCZCEf GLGosXeitedlugT4a9E7rlB1vHTWAl25OUPtDfi3Nn2DHOjh54+RbyW4bHRhWstt9iOU 9w== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 32cux0ejnt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 22 Jul 2020 14:09:57 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 1DE34100034; Wed, 22 Jul 2020 14:09:53 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag6node2.st.com [10.75.127.17]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id D95252AF323; Wed, 22 Jul 2020 14:09:52 +0200 (CEST) Received: from [10.48.0.224] (10.75.127.46) by SFHDAG6NODE2.st.com (10.75.127.17) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 22 Jul 2020 14:09:52 +0200 Subject: Re: [Linux-stm32] [PATCH v3 3/3] ARM: dts: stm32: add initial support for stm32mp157-odyssey board To: Marcin Sloniewski , CC: Rob Herring , Stephan Gerhold , Manivannan Sadhasivam , Heiko Stuebner , Linus Walleij , , Lubomir Rintel , Mark Brown , allen , Sam Ravnborg , , References: <20200721185317.208722-1-marcin.sloniewski@gmail.com> <20200721185317.208722-3-marcin.sloniewski@gmail.com> From: Christophe Kerello Message-ID: <73077407-e008-1ae2-266d-1045a73620ba@st.com> Date: Wed, 22 Jul 2020 14:09:51 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20200721185317.208722-3-marcin.sloniewski@gmail.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG1NODE1.st.com (10.75.127.1) To SFHDAG6NODE2.st.com (10.75.127.17) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-07-22_05:2020-07-22,2020-07-22 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Marcin, On 7/21/20 8:53 PM, Marcin Sloniewski wrote: > +&sdmmc2 { > + pinctrl-names = "default", "opendrain", "sleep"; > + pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_a>; > + pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_a>; > + pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_a>; > + non-removable; > + no-sd; > + no-sdio; > + st,neg-edge; > + bus-width = <4>; > + vmmc-supply = <&v3v3>; > + vqmmc-supply = <&v3v3>; > + mmc-ddr-3_3v; > + status = "okay"; > +}; Based on the pins muxed, 8 data lines are configured, but the bus width is set to 4. What is the reason of not setting this property to 8? Regards, Christophe Kerello.