From patchwork Wed Sep 28 16:41:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Moysan X-Patchwork-Id: 12992585 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60963C04A95 for ; Wed, 28 Sep 2022 16:44:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234585AbiI1QoL (ORCPT ); Wed, 28 Sep 2022 12:44:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234474AbiI1Qnd (ORCPT ); Wed, 28 Sep 2022 12:43:33 -0400 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D69DEE99BC; Wed, 28 Sep 2022 09:43:23 -0700 (PDT) Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 28SGYIku027335; Wed, 28 Sep 2022 18:42:58 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=selector1; bh=Tvv4XSpFVhRAUHCiQIXFXmpFW58v1bKVTxE9iPBGlaM=; b=G7cqFUCeLV/D91pWfAawIbRcFtpiQOCGsL7LbRh1spG2BefD9Hmm/XuLs5cwATHBsDLc Tb/simSXC+GV5d2TFB3RgVMYuEsyvFmHEMrooIycRaYau1dAlKeqNSgs8VkcksN6Z+Ws /ZWfx+n/A4qO+NXsBMyrsmA+FCKYEMSD9hLcK1ia0OAvudSy0J6l/MjjUEjj8P98FaEe GYMouMQXpnhMt65PXwfs6GvNLdS3ObBCIEMiDdNGYtoy+xofwMgVlxakBEWdatc7qhXy Rvc/YEeKnYheBhSksl/D0GuAiILPJSVr+EC9/D0pZwSccxLp3QeYtMEm3EZqXxioCn76 9A== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3jss82hwd8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Sep 2022 18:42:58 +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 A0D5F100034; Wed, 28 Sep 2022 18:42:56 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 9C6EB23C6B5; Wed, 28 Sep 2022 18:42:56 +0200 (CEST) Received: from localhost (10.75.127.45) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2375.31; Wed, 28 Sep 2022 18:42:56 +0200 From: Olivier Moysan To: Alexandre Torgue , Andy Shevchenko , Fabrice Gasnier , Jonathan Cameron , Lars-Peter Clausen , Maxime Coquelin , , Olivier Moysan , Paul Cercueil , Sebastian Andrzej Siewior , Wan Jiabing , Yannick Brosseau CC: , , , Subject: [PATCH 8/8] ARM: dts: stm32: add adc support on stm32mp135f-dk Date: Wed, 28 Sep 2022 18:41:14 +0200 Message-ID: <20220928164114.48339-9-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220928164114.48339-1-olivier.moysan@foss.st.com> References: <20220928164114.48339-1-olivier.moysan@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-09-28_07,2022-09-28_01,2022-06-22_01 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Configure ADC support on stm32mp135f-dk. ADC can be used for USB Type-C CC1 & CC2 pins wired to in6 & in12. Signed-off-by: Olivier Moysan --- arch/arm/boot/dts/stm32mp135f-dk.dts | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/arch/arm/boot/dts/stm32mp135f-dk.dts b/arch/arm/boot/dts/stm32mp135f-dk.dts index 95068231ed57..5b7630a2452e 100644 --- a/arch/arm/boot/dts/stm32mp135f-dk.dts +++ b/arch/arm/boot/dts/stm32mp135f-dk.dts @@ -76,6 +76,32 @@ vdd_adc: vdd-adc { }; }; +&adc_1 { + pinctrl-names = "default"; + pinctrl-0 = <&adc1_usb_cc_pins_a>; + vdda-supply = <&vdd_adc>; + vref-supply = <&vdd_adc>; + status = "okay"; + + adc1: adc@0 { + status = "okay"; + /* + * Type-C USB_PWR_CC1 & USB_PWR_CC2 on in6 & in12. + * Use at least 5 * RC time, e.g. 5 * (Rp + Rd) * C: + * 5 * (5.1 + 47kOhms) * 5pF => 1.3us. + * Use arbitrary margin here (e.g. 5us). + */ + channel@6 { + reg = <6>; + st,min-sample-time-ns = <5000>; + }; + channel@12 { + reg = <12>; + st,min-sample-time-ns = <5000>; + }; + }; +}; + &iwdg2 { timeout-sec = <32>; status = "okay";