From patchwork Tue May 30 12:45:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Moysan X-Patchwork-Id: 13259980 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 8003DC7EE23 for ; Tue, 30 May 2023 12:47:49 +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=GzY8y9V0o7csA6UQ0Kcfg5dJceFRElwWvswxe3wbkE0=; b=zRlgryAjL/A5Pp s0Qnl/2q4fyYBAG05HfU4ifw2kqWD1e5JVB5OZjALhrlYgX/De9oDq8FjuItICQox0xxzd4ymgnER GbbKls2I5C76zLYN93G5jVhzrPMub1tNoK48vkxM8dNxRv6I41ua4VsMlEPIXk47e/uVovSsRbppE HgCbtQSV9DaREADpmefsPjrue4z7evxGcsLoRhoON/MRym4txUBJv7ObIzGG3KO9B7ta3BYZGEXAm /EFUzgUyyIde+W6xakTXLSgkfXAZiXJq4A0eVWUlr+cD/YLXUsDc4g4JCTsteNGcBqxHDX9f4gMLC t82nR5tcHp4lyCeL57+Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q3yl3-00Dush-2l; Tue, 30 May 2023 12:47:25 +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 1q3yl0-00Dur5-34 for linux-arm-kernel@lists.infradead.org; Tue, 30 May 2023 12:47:24 +0000 Received: from pps.filterd (m0288072.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34U9eA8k001487; Tue, 30 May 2023 14:47:17 +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=cO/FJ+AZFp2lr5ucdDhnQHBCcBeeC19QRXJP3967DQE=; b=fmJr4z0L8/dwUgCjtegBSjgwX4cJv4dQcMDTNCg/X7YsCuPK704zE7ox3fZ7lzLKIkjW a2xDcdLiGTsSpiyuxJrbmvzupdk/4aNNNAVTLIHeIVb0jv1vYNJb9FlgNtWMxtKxKvmx P2ezOtCsWpyBXG+WheTiwYzADfxouVczkDGzy5FiR2VTMFtRKWH6upwJyqeCjTHHc+zg 517um7tAEcog0mDbChOC80YaJs9V0+j2YeTUPaRUsREb/aPN/bL2Vo9TwSO6I7OjsKQh APHwRJnGSwkU8rdNyqZslxs+CRBlNwsoBMRf0v6fZnnieDCldzDsPmjrPbeyFkcxjjVt Sw== 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 3qweqe13t7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 30 May 2023 14:47:17 +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 192F110002A; Tue, 30 May 2023 14:47:17 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 118192248D6; Tue, 30 May 2023 14:47:17 +0200 (CEST) Received: from localhost (10.201.20.178) 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; Tue, 30 May 2023 14:47:16 +0200 From: Olivier Moysan To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue CC: Olivier Moysan , , , , Subject: [PATCH v2 4/9] ARM: dts: stm32: enable adc on stm32mp15xx-dkx boards Date: Tue, 30 May 2023 14:45:32 +0200 Message-ID: <20230530124538.621760-5-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530124538.621760-1-olivier.moysan@foss.st.com> References: <20230530124538.621760-1-olivier.moysan@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.20.178] X-ClientProxiedBy: EQNCAS1NODE3.st.com (10.75.129.80) 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=2023-05-30_09,2023-05-30_01,2023-05-22_02 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230530_054723_276093_7F607BA3 X-CRM114-Status: GOOD ( 16.66 ) 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 a6e2e20f12fa..e78ba956b9d0 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>; + }; }; };