From patchwork Mon Sep 16 12:34:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Nyekjaer X-Patchwork-Id: 11146959 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 C75901745 for ; Mon, 16 Sep 2019 12:35:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A6D682184D for ; Mon, 16 Sep 2019 12:35:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=geanix.com header.i=@geanix.com header.b="cBQrgLEn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732656AbfIPMfH (ORCPT ); Mon, 16 Sep 2019 08:35:07 -0400 Received: from first.geanix.com ([116.203.34.67]:58050 "EHLO first.geanix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732604AbfIPMfH (ORCPT ); Mon, 16 Sep 2019 08:35:07 -0400 Received: from zen.localdomain (unknown [85.184.140.241]) by first.geanix.com (Postfix) with ESMTPSA id 6341765755; Mon, 16 Sep 2019 12:34:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=geanix.com; s=first; t=1568637246; bh=3QEP5Q7V7Lb/3oEETVdkhhzkOmODUyiUssMv6rhoglk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=cBQrgLEnuHIOZ4K0RG3QTJ2OXhuHc2ne+57zZka8qpeQY9DnBTf/QzHwLnl6Y0Fm4 VNh0+HtSUbTSDwQYJKXF3Ze24XYOGDv1UXwZwSxhGniGjiR4+b3y2uJdQOaPW0awxZ c+8fO6J5Ca/GKv7BPdZ1UQNVcHvVK5L9jWmEWzmZ6VhKTT41c6cDijt57hFDZfr5uS txluEJ3oNXDZHQbsMxj5uJfd8OB64Z2vo+Z/mqOvbxdQeW8JV/IbLDmDkW0Qrn054U StKmyOSXNsO+L8358meDukw5NNcdeXw94yxQ4b6xNN6YxUF/91zYsfVZydwWxXTHPL kX5tbxF3uMzDA== 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 v9 3/6] iio: imu: st_lsm6dsx: add wakeup-source option Date: Mon, 16 Sep 2019 14:34:53 +0200 Message-Id: <20190916123456.1742253-3-sean@geanix.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190916123456.1742253-1-sean@geanix.com> References: <20190916123456.1742253-1-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 v4: * More devices supports wakeup Changes since v5: * None Changes since v6: * None Changes since v7: * Add check for hw->enable_event * Moved disable_irq_wake section so it's called * Removed not neeeded continue from disable_irq_wake section Changes since v8: * Using sensor->id instead of i in suspend/resume loops drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index 4198ba263d03..a7f12cf57f11 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -1858,6 +1858,9 @@ int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, return err; } + if (dev->of_node && of_property_read_bool(dev->of_node, "wakeup-source")) + device_init_wakeup(dev, true); + return 0; } EXPORT_SYMBOL(st_lsm6dsx_probe); @@ -1876,6 +1879,13 @@ static int __maybe_unused st_lsm6dsx_suspend(struct device *dev) if (!(hw->enable_mask & BIT(sensor->id))) continue; + if (device_may_wakeup(dev) && + sensor->id == ST_LSM6DSX_ID_ACC && hw->enable_event) { + /* 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) @@ -1905,6 +1915,10 @@ static int __maybe_unused st_lsm6dsx_resume(struct device *dev) continue; sensor = iio_priv(hw->iio_devs[i]); + if (device_may_wakeup(dev) && + sensor->id == ST_LSM6DSX_ID_ACC && hw->enable_event) + disable_irq_wake(hw->irq); + if (!(hw->suspend_mask & BIT(sensor->id))) continue;