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[209.132.180.67]) by mx.google.com with ESMTP id w6si6315855oig.171.2020.03.31.01.32.41; Tue, 31 Mar 2020 01:33:02 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@st.com header.s=STMicroelectronics header.b=pIj1GH14; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=st.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730164AbgCaIcY (ORCPT + 99 others); Tue, 31 Mar 2020 04:32:24 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:8688 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729624AbgCaIcX (ORCPT ); Tue, 31 Mar 2020 04:32:23 -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 02V8Rq9p026602; Tue, 31 Mar 2020 10:32:06 +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=pIj1GH14RlT7gHtmdpCCCbQqTgPwBRGsfv4wrUf5Y2LNvqDYVYBx/jVJj0cKVTwQbyFq UN+uUNP16sSHZUIfHXJmo/Q7+r70/KH/o9MSFnohrU/w3EQfzlx1KErgCdAnm970r9z+ qz77yFKeu8/C1Q5zwEQ1mAVnbnC/xPKMAbQDDbX7jOR/SbzJ0n3q81JroyOpimwsWmh5 BSZAwQyL9GWGSf1ZznC8Qh1p48MYjRyWOQeG6DYMk2BTBhfmYEjWwt+I4P9enl7ZIYNd 2LCyXkZM2LE7LKEphnLzge+YXoJ4HGzM83KFncNhjbvJWAgPSoBMeZUd1+frg8GC/tcD Zg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 301w80wtpv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 31 Mar 2020 10:32:06 +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 A91C6100034; Tue, 31 Mar 2020 10:32:05 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node3.st.com [10.75.127.9]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 9ADCF21E676; Tue, 31 Mar 2020 10:32:05 +0200 (CEST) Received: from localhost (10.75.127.47) by SFHDAG3NODE3.st.com (10.75.127.9) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 31 Mar 2020 10:32:05 +0200 From: Benjamin Gaignard To: , , , , , , , CC: , , , , Benjamin Gaignard Subject: [PATCH v5 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer Date: Tue, 31 Mar 2020 10:31:44 +0200 Message-ID: <20200331083146.10462-5-benjamin.gaignard@st.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20200331083146.10462-1-benjamin.gaignard@st.com> References: <20200331083146.10462-1-benjamin.gaignard@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.47] X-ClientProxiedBy: SFHDAG7NODE1.st.com (10.75.127.19) 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_03:2020-03-30,2020-03-31 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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) -- 2.15.0