From patchwork Thu Jan 12 10:44:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Moysan X-Patchwork-Id: 13097795 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 5A909C677F1 for ; Thu, 12 Jan 2023 10:46:42 +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=IJkU9yHhQi6h89aKtnyljqUYMqBPrQdImyxwOWEuHPw=; b=c+wV2XZUZ1ehYJ /4gtBssxyPzrqAR+o9KQb6vcxMmWVW5iCpyaxzEmwOR6bhj+UOm4jkLAQ9CxRJ3IYGri32CQcia36 7HHZPkMR97ysnuqtCCOsPvUszOcXSBsEDwFTPLCkFtelR38aVxyWu+eDW8lY6AILwoJMgKWOCPeCT cgmJOdcMKSETeuIL2EawQFPVelPPkCOmCB9gWYw/KiFpNOOXuagegGTtuHjPZExOC+p/fzvkr7YWV tlPUwSAITje4ih9DQidJ0tnc/QXTFrZU68fQS/nywhwgwWn1dFcy6BtDkZXGXJSqhgnHDQUbQwe8d m4tPcaEJQrXiwNhHmOjQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pFv5K-00Edc1-TS; Thu, 12 Jan 2023 10:45:27 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pFv5G-00EdZl-OC for linux-arm-kernel@lists.infradead.org; Thu, 12 Jan 2023 10:45:24 +0000 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 30C7tWiD003642; Thu, 12 Jan 2023 11:45:06 +0100 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=qbOSelrgo9ly75B1lL3nGqofuIGQTzSwK46itLRhY8Q=; b=YrU5GeLY1ekJUP8XoXw0SUa06tUY9KT9xrim9N8l3WcDarGrGsUodfsuKjE3j8jZBGjg egMqtvr+4yuNojbzzOpdOs4rjxpB2eMtHHUZx4JcwU34+WepF8UU3KMxxJZCcarnaw6m BIYsCUPRtH7RupMem5woeCSRfy8Z157EP3uhs71DYLwryppqYnj8Rx9R5HYdsn8AZWTW w8gQvnENoKkMvRiacq5d8AAWJt8lEFBlMv5Q+n9rHXI+omU3EyxJEaPcGWwv1cHhgEGS mns+P2coGHbv034OoEYYyTGoTUkXE49eoV8FCrtPN4HmNcADHQtBoHkN1KZT4btzAeaG iA== 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 3n1k64j6xd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 Jan 2023 11:45:06 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 1043C100034; Thu, 12 Jan 2023 11:45:05 +0100 (CET) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 08651214B12; Thu, 12 Jan 2023 11:45:05 +0100 (CET) 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 15.1.2507.13; Thu, 12 Jan 2023 11:45:04 +0100 From: Olivier Moysan To: Rob Herring , Krzysztof Kozlowski , Maxime Coquelin , Alexandre Torgue CC: Olivier Moysan , , , , Subject: [PATCH 01/10] ARM: dts: stm32: add adc internal channels to stm32mp15 Date: Thu, 12 Jan 2023 11:44:36 +0100 Message-ID: <20230112104446.1140551-2-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230112104446.1140551-1-olivier.moysan@foss.st.com> References: <20230112104446.1140551-1-olivier.moysan@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.20.178] 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:2.0.219,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2023-01-12_06,2023-01-12_01,2022-06-22_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230112_024523_117977_20560175 X-CRM114-Status: GOOD ( 16.88 ) 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 Add STM32 ADC2 internal channels VREFINT and VDDCORE to STM32MP15x SoCs. VBAT internal channel is not defined by default in SoC DT, and has be defined in board DT when needed, instead. This avoids unwanted current consumption on battery, when ADC conversions are performed on any other channels. The internal channels are defined in STM32MP15 SoC DT according to the generic IIO channel bindings. The STM32 driver does not support a mixed use of legacy and generic channels. When generic channels are defined, legacy channels are ignored. This involves that the board device trees using legacy bindings for ADC2, have to be reworked. Signed-off-by: Olivier Moysan --- arch/arm/boot/dts/stm32mp151.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi index 4e437d3f2ed6..dea1c53f2b1d 100644 --- a/arch/arm/boot/dts/stm32mp151.dtsi +++ b/arch/arm/boot/dts/stm32mp151.dtsi @@ -1093,6 +1093,8 @@ adc: adc@48003000 { adc1: adc@0 { compatible = "st,stm32mp1-adc"; #io-channel-cells = <1>; + #address-cells = <1>; + #size-cells = <0>; reg = <0x0>; interrupt-parent = <&adc>; interrupts = <0>; @@ -1104,12 +1106,22 @@ adc1: adc@0 { adc2: adc@100 { compatible = "st,stm32mp1-adc"; #io-channel-cells = <1>; + #address-cells = <1>; + #size-cells = <0>; reg = <0x100>; interrupt-parent = <&adc>; interrupts = <1>; dmas = <&dmamux1 10 0x400 0x01>; dma-names = "rx"; status = "disabled"; + channel@13 { + reg = <13>; + label = "vrefint"; + }; + channel@14 { + reg = <14>; + label = "vddcore"; + }; }; };