From patchwork Wed Aug 30 15:55:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 807692 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3xj99x07gmz9sPt for ; Thu, 31 Aug 2017 01:57:09 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751523AbdH3P4O (ORCPT ); Wed, 30 Aug 2017 11:56:14 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:41921 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751405AbdH3P4N (ORCPT ); Wed, 30 Aug 2017 11:56:13 -0400 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v7UFssg9013095; Wed, 30 Aug 2017 17:55:34 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 2cnxrb0n2g-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 30 Aug 2017 17:55:34 +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 69D2B31; Wed, 30 Aug 2017 15:55:33 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag5node3.st.com [10.75.127.15]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 47DA92980; Wed, 30 Aug 2017 15:55:33 +0000 (GMT) Received: from localhost (10.75.127.45) by SFHDAG5NODE3.st.com (10.75.127.15) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Wed, 30 Aug 2017 17:55:32 +0200 From: Fabrice Gasnier To: , , , CC: , , , , , , Subject: [PATCH v2 0/3] Add support for STM32 vrefbuf regulator Date: Wed, 30 Aug 2017 17:55:26 +0200 Message-ID: <1504108529-31727-1-git-send-email-fabrice.gasnier@st.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG1NODE1.st.com (10.75.127.1) To SFHDAG5NODE3.st.com (10.75.127.15) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-08-30_07:, , signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Some STM32 devices embed a voltage reference buffer which can be used as voltage reference for ADCs, DACs and also as voltage reference for external components through the dedicated VREF+ pin. This patchset adds vrefbuf regulator driver, device tree bindings and vrefbuf device tree node for STM32H7 SoC. --- Changes in v2: - Update regulator driver following Mark's remarks Fabrice Gasnier (3): dt-bindings: regulator: Add STM32 Voltage Reference Buffer regulator: Add support for stm32-vrefbuf ARM: dts: stm32: add vrefbuf to stm32h743 .../bindings/regulator/st,stm32-vrefbuf.txt | 20 ++ arch/arm/boot/dts/stm32h743.dtsi | 9 + drivers/regulator/Kconfig | 12 ++ drivers/regulator/Makefile | 1 + drivers/regulator/stm32-vrefbuf.c | 202 +++++++++++++++++++++ 5 files changed, 244 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt create mode 100644 drivers/regulator/stm32-vrefbuf.c