From patchwork Wed Sep 4 09:17:30 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Nyekjaer X-Patchwork-Id: 11129785 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9F863112C for ; Wed, 4 Sep 2019 09:17:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 755BA2341F for ; Wed, 4 Sep 2019 09:17:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=geanix.com header.i=@geanix.com header.b="IIWO6MNy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726240AbfIDJRs (ORCPT ); Wed, 4 Sep 2019 05:17:48 -0400 Received: from first.geanix.com ([116.203.34.67]:60386 "EHLO first.geanix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728843AbfIDJRr (ORCPT ); Wed, 4 Sep 2019 05:17:47 -0400 Received: from zen.localdomain (unknown [85.184.140.241]) by first.geanix.com (Postfix) with ESMTPSA id DA1DB62F97; Wed, 4 Sep 2019 09:17:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=geanix.com; s=first; t=1567588660; bh=0a00ra6GIFWzzt2I6ONtJW3Wb0NHxpxoV3quQxcq1RE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=IIWO6MNyRPOCbiEkEwKOBf9cV03kePMqUwHImKIQiE/kX7j/qFuASMDCOrmsJa0lc 7czSJ5Pl2VfLm8kQCpFULSFe0xQF+JmLz83HgQO8pnAK6y8wGO17Yy8aa+xik4RpK6 wMq7tiKVv0+YHj4mMq4j35skKb4gK5PzXvpJvLbA0oTJZ4pBTQJa9ZJ+p3MikZx/YE q/YWXVaT9lgmIARxGyA8sjXAn4xT9f4r7wpvRHfO3xF5XnVVvgdZghyG/cvrKTvxx3 /DudieoBgpOvGlprgo8Qtth3LSNvV+Xho/nWTbjDN4atIpNjSpALcpNGsRPrHdknt+ o9S4F1zPRKKcA== From: Sean Nyekjaer To: linux-iio@vger.kernel.org, jic23@kernel.org, lorenzo.bianconi83@gmail.com Cc: Sean Nyekjaer , denis.ciocca@st.com, mario.tesi@st.com, armando.visconti@st.com, martin@geanix.com Subject: [PATCH v3 4/6] iio: imu: st_lsm6dsx: always enter interrupt thread Date: Wed, 4 Sep 2019 11:17:30 +0200 Message-Id: <20190904091732.112281-4-sean@geanix.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190904091732.112281-1-sean@geanix.com> References: <20190904091732.112281-1-sean@geanix.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=4.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=disabled version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on 77834cc0481d Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org The interrupt source can come from multiple sources, fifo and wake interrupts. Enter interrupt thread to check which interrupt that has fired. Signed-off-by: Sean Nyekjaer --- Changes since v1: * None Changes since v2: * None drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index bb72800bf99b..513506caa460 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -1613,19 +1613,19 @@ static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw, static irqreturn_t st_lsm6dsx_handler_irq(int irq, void *private) { - struct st_lsm6dsx_hw *hw = private; - - return hw->sip > 0 ? IRQ_WAKE_THREAD : IRQ_NONE; + return IRQ_WAKE_THREAD; } static irqreturn_t st_lsm6dsx_handler_thread(int irq, void *private) { struct st_lsm6dsx_hw *hw = private; - int count; + int count = 0; - mutex_lock(&hw->fifo_lock); - count = hw->settings->fifo_ops.read_fifo(hw); - mutex_unlock(&hw->fifo_lock); + if (hw->sip > 0) { + mutex_lock(&hw->fifo_lock); + count = st_lsm6dsx_read_fifo(hw); + mutex_unlock(&hw->fifo_lock); + } return count ? IRQ_HANDLED : IRQ_NONE; }