From patchwork Wed Apr 1 08:39:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 202562 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6DDC0C43331 for ; Wed, 1 Apr 2020 08:39:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3DABA2073B for ; Wed, 1 Apr 2020 08:39:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="z0oVUxcL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729703AbgDAIjs (ORCPT ); Wed, 1 Apr 2020 04:39:48 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:47243 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731872AbgDAIjs (ORCPT ); Wed, 1 Apr 2020 04:39:48 -0400 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0318buNS010432; Wed, 1 Apr 2020 10:39:39 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=y5y8bWAzSXfW+28B5IZdTTirhUr3alseyHBXkQkA+Os=; b=z0oVUxcL/wofys9cpq7b4jfnrYDSG1AZ6V4Cp5866k8A0gcQAdVl6LsbztmprnoKNxw+ LRwMUKBSMw2BVynoUzZDE8v3Ugko8XVbUSCljeJpw/CzcrHE9LKJ9leQwWxzdjx6BpJw NwKQJTTpat2pRx4/htp7Hs/Z/ieNyi5A/P8spUNMrM0J/0vdfu/aJkOMl+sPSWt5QTkW KXcCPUOOh4qRnPoVyATihZxwSId/IM044Pnl93cRdCb+L/B/nd4rXGxo9ku5qdiL5dCO j7UL1QQkg06hX3Rv2+bNwAf3pV6zPlmBi1LcQ5MNUifupRJDQHSdH+4PX2pGA/R1bAcN eA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 301w813w75-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 01 Apr 2020 10:39:39 +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 9152610002A; Wed, 1 Apr 2020 10:39:38 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node3.st.com [10.75.127.9]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 83E3221CA8F; Wed, 1 Apr 2020 10:39:38 +0200 (CEST) Received: from localhost (10.75.127.44) by SFHDAG3NODE3.st.com (10.75.127.9) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Wed, 1 Apr 2020 10:39:38 +0200 From: Benjamin Gaignard To: , , , , , , , CC: , , , , Benjamin Gaignard Subject: [PATCH v6 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer Date: Wed, 1 Apr 2020 10:39:07 +0200 Message-ID: <20200401083909.18886-5-benjamin.gaignard@st.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20200401083909.18886-1-benjamin.gaignard@st.com> References: <20200401083909.18886-1-benjamin.gaignard@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG5NODE3.st.com (10.75.127.15) To SFHDAG3NODE3.st.com (10.75.127.9) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-03-31_07:2020-03-31,2020-03-31 signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Because stm32-lptimer need to write in registers in interrupt context enable regmap fast_io to use a spin_lock to protect registers access rather than a mutex. Signed-off-by: Benjamin Gaignard --- drivers/mfd/stm32-lptimer.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/stm32-lptimer.c b/drivers/mfd/stm32-lptimer.c index a00f99f36559..746e51a17cc8 100644 --- a/drivers/mfd/stm32-lptimer.c +++ b/drivers/mfd/stm32-lptimer.c @@ -17,6 +17,7 @@ static const struct regmap_config stm32_lptimer_regmap_cfg = { .val_bits = 32, .reg_stride = sizeof(u32), .max_register = STM32_LPTIM_MAX_REGISTER, + .fast_io = true, }; static int stm32_lptimer_detect_encoder(struct stm32_lptimer *ddata)