From patchwork Wed May 24 13:39:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Moysan X-Patchwork-Id: 13254017 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 847B3C77B7A for ; Wed, 24 May 2023 13:40:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=1+ZaiApftC7M7BFkvMvcK0ETssdO9ohKLrUzBy/lIMk=; b=T7tC1KwubsomSN IFdcXmoqZ4kZIXfnr+u4pg4BhS97/QpzpmZqVvjgMgaH4xhB+OEV5p7oZ8oIfeJn5dbz+qJp72i83 5YpRJAoYr906JCeWaUSpQHKXTm/ny7iK14RY6WTWMo/70IOdyd4WqtGhNC2NLGBHGZYEQYjXXf7oV CJS/UCJx4IJCjWGLt1TK/9NmkLXs9SF5gXlrcHblar1isQb5lZM4kI7sShf/Uy9PgCO7oS6j0iNC4 GEWjHSTNY604adBA1We617Mgw24SpXWq8wmJVIMJIWdrG+yp7Mf7z+IDmfGIlZ02DXibTtBZvTBjI Kdh9zS0DXvH5dzTg0AmA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q1oj4-00Db3v-1A; Wed, 24 May 2023 13:40:26 +0000 Received: from mx07-00178001.pphosted.com ([185.132.182.106]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q1oio-00Daws-10 for linux-arm-kernel@lists.infradead.org; Wed, 24 May 2023 13:40:12 +0000 Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34ODYnw4009311; Wed, 24 May 2023 15:39:53 +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=5tr8+koJbahJlh8pGZf1G18j68F+/fl56MXnG8oEP+c=; b=LFU+C6RAtznVJ4PXz1frySK7ptJocWbhoHxNAbBbh4oTvtBY15mbVZ+oTB4Al421tmf8 RJ76A3gFJ2P4mGC2J8zc9MALGAHlAKYauNqoL3pjBuLNvDTGFRntytdfEWW/rOiFD5xu lCoM3coYRak4HYjZwouIMd5Bvo0Ix87Cp6EIj5Bg7X0zj3vgcTsE+cgr9AopnVOJaUFV mdxoeiX820OWZvcMeQFPmWb5ma4tnlHMVIvWLCr7o9MoNE1fK0+qcyg28Lle9qHuUYMv OpieH0R/hd7kCR6vBBKsrvoev3DIMdWzH9+BUsOJ0yPdhkVObs4LMicIFOO5SDxgns7B jQ== 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 3qru86gkfr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 24 May 2023 15:39:52 +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 6227610002A; Wed, 24 May 2023 15:39:52 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 5A85F229A88; Wed, 24 May 2023 15:39:52 +0200 (CEST) Received: from localhost (10.252.20.36) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Wed, 24 May 2023 15:39:52 +0200 From: Olivier Moysan To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue CC: Olivier Moysan , , , , Subject: [PATCH 4/8] ARM: dts: stm32: enable adc on stm32mp15xx-dkx boards Date: Wed, 24 May 2023 15:39:13 +0200 Message-ID: <20230524133918.1439516-5-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230524133918.1439516-1-olivier.moysan@foss.st.com> References: <20230524133918.1439516-1-olivier.moysan@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.252.20.36] X-ClientProxiedBy: EQNCAS1NODE4.st.com (10.75.129.82) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.176.26 definitions=2023-05-24_09,2023-05-24_01,2023-05-22_02 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230524_064010_658865_8408D495 X-CRM114-Status: GOOD ( 16.38 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org U-Boot enables ADC1&2 to support USB power measurement and ADC calibration on STM32MP15x Disco boards. When leaving U-boot the ADCs do not return to power down state to keep ADC linear calibration available for kernel. Enable ADC1&2 by default on STM32MP15xx-DKx boards to align kernel DT with Uboot. This avoids to shutdown the ADCs VDDA, while the ADCs are not in power down. Use STM32 ADC generic bindings instead of legacy bindings on STM32MP15xx-DKx boards. The ADC pins on Arduino connector are not set by default. These pins are added in A7 Disco example DTs only. Signed-off-by: Olivier Moysan --- arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 29 ++++++++++++++++++-------- 1 file changed, 20 insertions(+), 9 deletions(-) diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi index 0f1110e42c93..ad46f1b1e1ed 100644 --- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi +++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi @@ -93,28 +93,39 @@ vin: vin { &adc { pinctrl-names = "default"; - pinctrl-0 = <&adc12_ain_pins_a>, <&adc12_usb_cc_pins_a>; + pinctrl-0 = <&adc12_usb_cc_pins_a>; vdd-supply = <&vdd>; vdda-supply = <&vdd>; vref-supply = <&vrefbuf>; - status = "disabled"; + status = "okay"; adc1: adc@0 { + status = "okay"; /* * Type-C USB_PWR_CC1 & USB_PWR_CC2 on in18 & in19. * Use at least 5 * RC time, e.g. 5 * (Rp + Rd) * C: * 5 * (56 + 47kOhms) * 5pF => 2.5us. * Use arbitrary margin here (e.g. 5us). */ - st,min-sample-time-nsecs = <5000>; - /* AIN connector, USB Type-C CC1 & CC2 */ - st,adc-channels = <0 1 6 13 18 19>; - status = "okay"; + channel@18 { + reg = <18>; + st,min-sample-time-ns = <5000>; + }; + channel@19 { + reg = <19>; + st,min-sample-time-ns = <5000>; + }; }; adc2: adc@100 { - /* AIN connector, USB Type-C CC1 & CC2 */ - st,adc-channels = <0 1 2 6 18 19>; - st,min-sample-time-nsecs = <5000>; status = "okay"; + /* USB Type-C CC1 & CC2 */ + channel@18 { + reg = <18>; + st,min-sample-time-ns = <5000>; + }; + channel@19 { + reg = <19>; + st,min-sample-time-ns = <5000>; + }; }; };