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 1E4B0C7618B for ; Mon, 29 Jul 2019 07:23:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DD8DF2073F for ; Mon, 29 Jul 2019 07:23:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="vF21dSF/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726048AbfG2HXm (ORCPT ); Mon, 29 Jul 2019 03:23:42 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:38988 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725917AbfG2HXm (ORCPT ); Mon, 29 Jul 2019 03:23:42 -0400 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x6T7GbUO017808; Mon, 29 Jul 2019 09:23:10 +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=knB1CFf+dV5YYBti2FACI1fBFDRzZJ7xPVnkJzKHsnw=; b=vF21dSF/PU8U7f7SbGvtjtdeSN+ptbef8kPnk+134RREY8U9s9kwdEFIauzD3qkRPYJf aLJwaGsAOlR+vL0bzGOfOK4VgPqFFCsOlbar4SxW9kC5XJSsm4KMRy0pM0S7vmzXke4h +r0cazmiUUD0kKVceMGb+QKcsgOWIYN9vGTQ+WwRwJNmkRhBR8pEdQVxTx8LYzhUMxrh Gz9W+F+cEgtAfmFWV8ozPzQbAAM8UkQ/cVpdRzUEf3gJztwKlxGEqzHy2vtvKMp+MpUZ q8iXCUU0wUVlODhzGr+Rq5US6v/ycIAZ1xPn1U2+PL0oi/Gacod75c1gFnNLC9jOrSW8 Kw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2u0dggtn0k-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 29 Jul 2019 09:23:10 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 376CD34; Mon, 29 Jul 2019 07:23:08 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id F2CD456C5; Mon, 29 Jul 2019 07:23:07 +0000 (GMT) Received: from lmecxl0912.lme.st.com (10.75.127.51) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 29 Jul 2019 09:23:07 +0200 Subject: Re: [PATCH v2 3/3] ARM: dts: stm32: add syscfg to ADC on stm32mp157c To: Fabrice Gasnier , , CC: , , , , , , , , , References: <1562148496-26789-1-git-send-email-fabrice.gasnier@st.com> <1562148496-26789-4-git-send-email-fabrice.gasnier@st.com> From: Alexandre Torgue Message-ID: <0687ec4c-0930-058d-4a55-c4cf712ab83c@st.com> Date: Mon, 29 Jul 2019 09:23:06 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <1562148496-26789-4-git-send-email-fabrice.gasnier@st.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.75.127.51] X-ClientProxiedBy: SFHDAG8NODE1.st.com (10.75.127.22) To SFHDAG3NODE2.st.com (10.75.127.8) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-07-29_04:,, signatures=0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Hi fabrice On 7/3/19 12:08 PM, Fabrice Gasnier wrote: > On stm32mp157c, the ADC inputs are multiplexed with analog switches which > have reduced performances when their supply is below 2.7V (vdda by > default). > Add syscfg registers that can be used on stm32mp157c, to get full ADC > analog performances. > > Signed-off-by: Fabrice Gasnier > --- > arch/arm/boot/dts/stm32mp157c.dtsi | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi > index 2dd5162..b9a5b58 100644 > --- a/arch/arm/boot/dts/stm32mp157c.dtsi > +++ b/arch/arm/boot/dts/stm32mp157c.dtsi > @@ -862,6 +862,7 @@ > clocks = <&rcc ADC12>, <&rcc ADC12_K>; > clock-names = "bus", "adc"; > interrupt-controller; > + st,syscfg = <&syscfg>; > #interrupt-cells = <1>; > #address-cells = <1>; > #size-cells = <0>; > Applied on stm32-next. Thanks. Alex