From patchwork Mon Apr 20 08:59:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 201771 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=-9.8 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=unavailable 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 72A91C54FCF for ; Mon, 20 Apr 2020 09:00:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5210921D79 for ; Mon, 20 Apr 2020 09:00:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="aJU3ULrk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726324AbgDTI74 (ORCPT ); Mon, 20 Apr 2020 04:59:56 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:54665 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726054AbgDTI7z (ORCPT ); Mon, 20 Apr 2020 04:59:55 -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 03K8wpPu006526; Mon, 20 Apr 2020 10:59:39 +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=UJmO87qFK0xEY46lSDFeEL2UHjX2gK9xwkAP9IoX/lc=; b=aJU3ULrklgDWVAh4ZijZAxCCb7XDGJVZmt37eDqcFti6Gs9a8inPXsn252fThhVPIjy+ ckSwpLynoDMKA3xD8VMe/5OvBe3P88j7OmHtCbjZzO6FZrkg2HgyKK2vtns/UEp5A6eC K868S6dbsKEq8uPx58wmhb3NBMwIM4hC8VNLDyj9tjWd87lf5esazKUCq9acOyG++gTW Ty1VqzE3yoS3iza9NvqUYYBN8ney0ZFE+NHluyw0YMHADiu/TeYzJtNUBIgVUM6FrB7r qnj7mIGRRTL4Zi/99FfmD6hbovpWnWw+l4Vr127kyoOO+zymypT/Wf6rzT4wQVLoopm4 vA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 30fqaw18s0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 20 Apr 2020 10:59:39 +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 054A010002A; Mon, 20 Apr 2020 10:59:39 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node3.st.com [10.75.127.9]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id E9C5E2BC7DA; Mon, 20 Apr 2020 10:59:38 +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; Mon, 20 Apr 2020 10:59:38 +0200 From: Benjamin Gaignard To: , , , , , , , CC: , , , , Benjamin Gaignard Subject: [RESEND v6 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer Date: Mon, 20 Apr 2020 10:59:28 +0200 Message-ID: <20200420085930.26989-5-benjamin.gaignard@st.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20200420085930.26989-1-benjamin.gaignard@st.com> References: <20200420085930.26989-1-benjamin.gaignard@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG5NODE1.st.com (10.75.127.13) 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=2020-04-20_03:2020-04-17,2020-04-20 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 Acked-by: Lee Jones --- 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)