From patchwork Mon Jul 15 08:15:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Nyekjaer X-Patchwork-Id: 11043483 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 2B0B413B1 for ; Mon, 15 Jul 2019 08:15:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1DCBF26E51 for ; Mon, 15 Jul 2019 08:15:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1215226E78; Mon, 15 Jul 2019 08:15:29 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B6C3A26E51 for ; Mon, 15 Jul 2019 08:15:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729394AbfGOIP2 (ORCPT ); Mon, 15 Jul 2019 04:15:28 -0400 Received: from first.geanix.com ([116.203.34.67]:55308 "EHLO first.geanix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729383AbfGOIP2 (ORCPT ); Mon, 15 Jul 2019 04:15:28 -0400 Received: from zen.localdomain (unknown [85.184.140.241]) by first.geanix.com (Postfix) with ESMTPSA id BD99543620; Mon, 15 Jul 2019 08:15:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=geanix.com; s=first; t=1563178503; bh=7aDigxqC+X0yPPBGZM/U6xh5Q966jFFnYHQLlR+CQTE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=fj8FAGLWQOy/O6hnu2BLSSbReEfmhvJu6zHxeDoq7HRrccI5LWijQgw1NWNYvO04j dsGfNNB28B9WVI4G1pW+m/yKixRCAlNYhRI3vKAvDPQuboeKeDSENVbY7rmwfpWBvz ddj5bfXcoJ+I0qndcJp08p/s88fwya+ZCrPUUVsG++6/ro7lVtVvQvM/vc8CaGXAFC tWLsKyVwGw8v0PffUzzV3zTxk+ZFO2e6ct3EZ7QRtspk9GGwkS2jtDCx1VhybpZKAO V8J3AkFcn0GXSm2/ITaFPUN24Ild0f95s70ljt+6QL0kKifoLE7V4oXPolEv9SalZ9 5at3dSV5c0JUA== From: Sean Nyekjaer To: linux-iio@vger.kernel.org, jic23@kernel.org Cc: Sean Nyekjaer , lorenzo.bianconi83@gmail.com, martin@geanix.com Subject: [PATCH v2 5/6] iio: imu: st_lsm6dsx: always enter interrupt thread Date: Mon, 15 Jul 2019 10:15:13 +0200 Message-Id: <20190715081514.81129-5-sean@geanix.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190715081514.81129-1-sean@geanix.com> References: <20190715081514.81129-1-sean@geanix.com> MIME-Version: 1.0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 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 fc450eeb9870..0503abab6efc 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -1215,19 +1215,19 @@ int st_lsm6dsx_event_setup(int id, 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 = st_lsm6dsx_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_NONE : IRQ_HANDLED; }