From patchwork Thu Sep 12 07:06:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Nyekjaer X-Patchwork-Id: 11142421 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 B580A16B1 for ; Thu, 12 Sep 2019 07:06:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 93B4B208E4 for ; Thu, 12 Sep 2019 07:06:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=geanix.com header.i=@geanix.com header.b="EcEpjHZn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729775AbfILHGZ (ORCPT ); Thu, 12 Sep 2019 03:06:25 -0400 Received: from first.geanix.com ([116.203.34.67]:53086 "EHLO first.geanix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729740AbfILHGZ (ORCPT ); Thu, 12 Sep 2019 03:06:25 -0400 Received: from zen.localdomain (unknown [85.184.140.241]) by first.geanix.com (Postfix) with ESMTPSA id ED64264D9B; Thu, 12 Sep 2019 07:05:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=geanix.com; s=first; t=1568271943; bh=BcSqBzf0CxDz+PUrGPgbpd6SF7a0AAz9Ru/Nv2tu+4c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=EcEpjHZnk9YMbEpOj1wTJjkIn9k5ikXXPYLPRIq+OfZ4J9IciB1r/KdfYqIS4yxPl uRrcITHL7sH9VD+Mdh1neLvxqMNGX5S3dUmKNbI8nuSubVqrXsx3Dru/vqRJYvJhQz 9UYz0swdYNiXB4yzKmfnvI1m1d88tZ1N8ilUzR/EdRpKVAmT/OPYd/qrsQsC/ELBij 0Jmj3OjPKBPGmfKV5i+0lbMvb0qviztAATYo0t/dW8GVqkqxjLnHkljgYIMBZ0CSrA Wbdhn1VT333q911R+ThLqmmizG5l4YKZfz1aaA8vKgoeLabAhQme3L1y3gPE+qpRPh oVBGFrITbhAXw== 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 v7 3/5] iio: imu: st_lsm6dsx: add wakeup-source option Date: Thu, 12 Sep 2019 09:06:12 +0200 Message-Id: <20190912070614.1144169-4-sean@geanix.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190912070614.1144169-1-sean@geanix.com> References: <20190912070614.1144169-1-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 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..f79978a2870f 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 +1879,12 @@ 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) @@ -1908,6 +1917,11 @@ 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)