From patchwork Wed Sep 4 09:17:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Nyekjaer X-Patchwork-Id: 11129781 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 9716014F7 for ; Wed, 4 Sep 2019 09:17:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 774F32341D for ; Wed, 4 Sep 2019 09:17:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=geanix.com header.i=@geanix.com header.b="VW8475oZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729456AbfIDJRr (ORCPT ); Wed, 4 Sep 2019 05:17:47 -0400 Received: from first.geanix.com ([116.203.34.67]:60372 "EHLO first.geanix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726045AbfIDJRq (ORCPT ); Wed, 4 Sep 2019 05:17:46 -0400 Received: from zen.localdomain (unknown [85.184.140.241]) by first.geanix.com (Postfix) with ESMTPSA id DB57B62F94; Wed, 4 Sep 2019 09:17:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=geanix.com; s=first; t=1567588659; bh=HN2Hl3Yt62nQY3y7v8ExydQMEijFr3Hsz7kZ8cPtmRM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VW8475oZx/bY0JfuGqSBcwT6OmF0/d72jFVUPd4+fcqsX/biNLdz4G4FJqN2GWnKb wzMmonWy7B+Pt09aGF3k9b5mrC4uR4vZa+CoZpRz6zhiSMDhktrUvHXcDVR3CYWYIe ac9QE3jhRO+6xtPCOuzMUFMLzy/OjsicakQkhfrI7yw+blk8ZyDWjpM/s9IJL8ASJF dkMu0/3mIT+low+WavQWJxyX896sF+8dQgQI7NqyC9Jp5Wj3RE0MJWz5SKANr8FXRG bThsvhNvYdZ5le8Bza50PVOdwgLSygmPhD84eAmaD48pBmV5CbJQjeCbf0dta1wUPP +hfQ787bBXZLQ== 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 3/6] iio: imu: st_lsm6dsx: add wakeup-source option Date: Wed, 4 Sep 2019 11:17:29 +0200 Message-Id: <20190904091732.112281-3-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 This add ways for the SoC to wake from accelerometer wake events. In the suspend function we skip disabling the sensor if wakeup-source and events are activated. Signed-off-by: Sean Nyekjaer --- Changes since v1: * none, as the call to st_lsm6dsx_flush_fifo will put the fifo in bypass mode. Changes since v2: * Removed unnecessary brackets * Move enable_irq to after the enable mask drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index d4d6ba934b6d..bb72800bf99b 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -1754,6 +1754,10 @@ int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, return err; } + if (dev->of_node) + if (of_property_read_bool(dev->of_node, "wakeup-source")) + device_init_wakeup(dev, true); + return 0; } EXPORT_SYMBOL(st_lsm6dsx_probe); @@ -1772,6 +1776,12 @@ static int __maybe_unused st_lsm6dsx_suspend(struct device *dev) if (!(hw->enable_mask & BIT(sensor->id))) continue; + if (device_may_wakeup(dev) && i == ST_LSM6DSX_ID_ACC) { + /* Enable wake from IRQ */ + enable_irq_wake(hw->irq); + continue; + } + if (sensor->id == ST_LSM6DSX_ID_EXT0 || sensor->id == ST_LSM6DSX_ID_EXT1 || sensor->id == ST_LSM6DSX_ID_EXT2) @@ -1804,6 +1814,11 @@ static int __maybe_unused st_lsm6dsx_resume(struct device *dev) if (!(hw->suspend_mask & BIT(sensor->id))) continue; + if (device_may_wakeup(dev) && i == ST_LSM6DSX_ID_ACC) { + disable_irq_wake(hw->irq); + continue; + } + if (sensor->id == ST_LSM6DSX_ID_EXT0 || sensor->id == ST_LSM6DSX_ID_EXT1 || sensor->id == ST_LSM6DSX_ID_EXT2)