From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 550C7C04AAB for ; Tue, 7 May 2019 14:36:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2CFFF2087F for ; Tue, 7 May 2019 14:36:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726911AbfEGOgm (ORCPT ); Tue, 7 May 2019 10:36:42 -0400 Received: from mxout014.mail.hostpoint.ch ([217.26.49.174]:53464 "EHLO mxout014.mail.hostpoint.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726687AbfEGOg0 (ORCPT ); Tue, 7 May 2019 10:36:26 -0400 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 Cc: Marcel Ziswiler , David Laight , dev@pschenker.ch, Philippe Schenker , Max Krummenacher , Alexandre Torgue , linux-kernel@vger.kernel.org, Lee Jones , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org 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 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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); } -- 2.21.0