From patchwork Tue May 7 14:36:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philippe Schenker X-Patchwork-Id: 10933073 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 D9F061390 for ; Tue, 7 May 2019 14:37:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C5C091FFB7 for ; Tue, 7 May 2019 14:37:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B6E9C286A0; Tue, 7 May 2019 14:37:01 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6756A2848D for ; Tue, 7 May 2019 14:37:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=3wvwJk1AtNo+bSl4qR2hg43TMYfhWbg13D9P7e0j8Xw=; b=SQe2F3nHovwjxo dQ8rWCRXzcoEY+JmlHCKa6eiy9sQpHPbGuONZ4at+iXqFXUgywPbbYwxqr9nTkgDf5kwUPGCduFs4 QjocKUZb1oHfCx0DxIgebBQeIys5rpNIG52LxUXgNSMdVhUKjf8AUUAJi0fvvK17XZah1MBvbdrdb xXZ7ohRbKM9/TVuQTiQA7hQaRMdlj1ak2VcRLU5EAEqJ446oFhXOpi+9g+TYOvYyHkJCCCkbib/Hu DT7mtxUM7v6Im5KxTdmLS39bH3N/Wl4Zp0LdDLtcktvUjlK6mRxRaL8wsC6g9cwd4vRyvzxk4HdqX 7bpIyGXCmjJAS32bySSA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hO1DE-0004jf-CP; Tue, 07 May 2019 14:36:56 +0000 Received: from mxout014.mail.hostpoint.ch ([2a00:d70:0:e::314]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hO1Ct-0004KQ-Nb for linux-arm-kernel@lists.infradead.org; Tue, 07 May 2019 14:36:39 +0000 Received: from [10.0.2.46] (helo=asmtp013.mail.hostpoint.ch) by mxout014.mail.hostpoint.ch with esmtp (Exim 4.91 (FreeBSD)) (envelope-from ) id 1hO1Ci-00028n-4E; Tue, 07 May 2019 16:36:24 +0200 Received: from [46.140.72.82] (helo=philippe-pc.toradex.int) by asmtp013.mail.hostpoint.ch with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91 (FreeBSD)) (envelope-from ) id 1hO1Ch-0008oW-Sx; Tue, 07 May 2019 16:36:24 +0200 X-Authenticated-Sender-Id: dev@pschenker.ch From: Philippe Schenker To: linux-iio@vger.kernel.org, Jonathan Cameron , Stefan Agner , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler Subject: [PATCH 5/5] iio: stmpe-adc: Reset possible interrupts Date: Tue, 7 May 2019 16:36:15 +0200 Message-Id: <20190507143615.28477-5-dev@pschenker.ch> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190507143615.28477-1-dev@pschenker.ch> References: <20190507143615.28477-1-dev@pschenker.ch> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190507_073635_761674_5A956D1B X-CRM114-Status: UNSURE ( 8.86 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Coquelin , Alexandre Torgue , Marcel Ziswiler , linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Philippe Schenker , David Laight , Max Krummenacher , Lee Jones , dev@pschenker.ch, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Philippe Schenker Clear any interrupt that still is on the device on every channel this driver is activated for in probe and specific channels in the timeout handler. Signed-off-by: Philippe Schenker --- drivers/iio/adc/stmpe-adc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/iio/adc/stmpe-adc.c b/drivers/iio/adc/stmpe-adc.c index cc752a47444c..a5990e9f2c80 100644 --- a/drivers/iio/adc/stmpe-adc.c +++ b/drivers/iio/adc/stmpe-adc.c @@ -80,6 +80,8 @@ static int stmpe_read_voltage(struct stmpe_adc *info, ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT); if (ret <= 0) { + stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA, + STMPE_ADC_CH(info->channel)); mutex_unlock(&info->lock); return -ETIMEDOUT; } @@ -326,6 +328,9 @@ static int stmpe_adc_probe(struct platform_device *pdev) stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_EN, ~(norequest_mask & 0xFF)); + stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA, + ~(norequest_mask & 0xFF)); + return devm_iio_device_register(&pdev->dev, indio_dev); }