From patchwork Tue Feb 26 13:51:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier MOYSAN X-Patchwork-Id: 10830231 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F32BB139A for ; Tue, 26 Feb 2019 13:52:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DF45C2BAF0 for ; Tue, 26 Feb 2019 13:52:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DD36E2C162; Tue, 26 Feb 2019 13:52:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3271B2C15F for ; Tue, 26 Feb 2019 13:52:13 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id DB6F29FA; Tue, 26 Feb 2019 14:51:21 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz DB6F29FA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1551189131; bh=obYIdJ/T7E9hGbZOjp2N13uchQcEmX2dVABl8yf5I8c=; h=From:To:Date:In-Reply-To:References:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=RRcBijPa4ajMgWLRwDun/SiBj7AVNUc+lcfrEIt0b7H5A/8lTVbxVrTQZMD9Na9NQ BEvLVe+0EJT3ME/B0HQJVzXl6R1arLJo89ugslf/+Y60lEZySWtfCXxa2p0aNXw+Rb 1ligzTTjbr5PHCriIjrelsmYivo14oIC7qxdEcAs= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 3AFD2F8966C; Tue, 26 Feb 2019 14:51:21 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 8C02CF89671; Tue, 26 Feb 2019 14:51:19 +0100 (CET) Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [62.209.51.94]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 9C435F8966C for ; Tue, 26 Feb 2019 14:51:16 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 9C435F8966C Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1QDlEJ2028522; Tue, 26 Feb 2019 14:51:15 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2qtvh3g8p6-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 26 Feb 2019 14:51:15 +0100 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 D4ADD3A; Tue, 26 Feb 2019 13:51:14 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas22.st.com [10.75.90.92]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id AC7945476; Tue, 26 Feb 2019 13:51:14 +0000 (GMT) Received: from SAFEX1HUBCAS24.st.com (10.75.90.95) by Safex1hubcas22.st.com (10.75.90.92) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 26 Feb 2019 14:51:14 +0100 Received: from localhost (10.201.23.16) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 26 Feb 2019 14:51:14 +0100 From: Olivier Moysan To: , , , , , , , , , , , , Date: Tue, 26 Feb 2019 14:51:04 +0100 Message-ID: <1551189070-15469-2-git-send-email-olivier.moysan@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1551189070-15469-1-git-send-email-olivier.moysan@st.com> References: <1551189070-15469-1-git-send-email-olivier.moysan@st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.23.16] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-02-26_09:, , signatures=0 Subject: [alsa-devel] [PATCH 1/7] ASoC: stm32: i2s: fix IRQ clearing X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" X-Virus-Scanned: ClamAV using ClamSMTP Because of regmap cache, interrupts may not be cleared as expected. Declare IFCR register as write only and make writings to IFCR register unconditional. Signed-off-by: Olivier Moysan --- sound/soc/stm/stm32_i2s.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c index a25919d32187..339cd4715b2e 100644 --- a/sound/soc/stm/stm32_i2s.c +++ b/sound/soc/stm/stm32_i2s.c @@ -247,8 +247,8 @@ static irqreturn_t stm32_i2s_isr(int irq, void *devid) return IRQ_NONE; } - regmap_update_bits(i2s->regmap, STM32_I2S_IFCR_REG, - I2S_IFCR_MASK, flags); + regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG, + I2S_IFCR_MASK, flags); if (flags & I2S_SR_OVR) { dev_dbg(&pdev->dev, "Overrun\n"); @@ -277,7 +277,6 @@ static bool stm32_i2s_readable_reg(struct device *dev, unsigned int reg) case STM32_I2S_CFG2_REG: case STM32_I2S_IER_REG: case STM32_I2S_SR_REG: - case STM32_I2S_IFCR_REG: case STM32_I2S_TXDR_REG: case STM32_I2S_RXDR_REG: case STM32_I2S_CGFR_REG: @@ -559,8 +558,8 @@ static int stm32_i2s_startup(struct snd_pcm_substream *substream, i2s->refcount++; spin_unlock(&i2s->lock_fd); - return regmap_update_bits(i2s->regmap, STM32_I2S_IFCR_REG, - I2S_IFCR_MASK, I2S_IFCR_MASK); + return regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG, + I2S_IFCR_MASK, I2S_IFCR_MASK); } static int stm32_i2s_hw_params(struct snd_pcm_substream *substream, @@ -611,8 +610,8 @@ static int stm32_i2s_trigger(struct snd_pcm_substream *substream, int cmd, return ret; } - regmap_update_bits(i2s->regmap, STM32_I2S_IFCR_REG, - I2S_IFCR_MASK, I2S_IFCR_MASK); + regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG, + I2S_IFCR_MASK, I2S_IFCR_MASK); if (playback_flg) { ier = I2S_IER_UDRIE;