From patchwork Sun Aug 7 09:25:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: srinivas pandruvada X-Patchwork-Id: 9266253 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 02AB96089F for ; Sun, 7 Aug 2016 09:25:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E803B27FA6 for ; Sun, 7 Aug 2016 09:25:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DCF112816B; Sun, 7 Aug 2016 09:25:55 +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=-6.9 required=2.0 tests=BAYES_00,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 8694D2808C for ; Sun, 7 Aug 2016 09:25:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751633AbcHGJZy (ORCPT ); Sun, 7 Aug 2016 05:25:54 -0400 Received: from mga03.intel.com ([134.134.136.65]:24529 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751654AbcHGJZv (ORCPT ); Sun, 7 Aug 2016 05:25:51 -0400 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga103.jf.intel.com with ESMTP; 07 Aug 2016 02:25:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,483,1464678000"; d="scan'208";a="861125697" Received: from spandruv-mobl.jf.intel.com ([10.255.76.122]) by orsmga003.jf.intel.com with ESMTP; 07 Aug 2016 02:25:46 -0700 From: Srinivas Pandruvada To: jikos@kernel.org, jic23@kernel.org Cc: linux-input@vger.kernel.org, linux-iio@vger.kernel.org, srinivas.pandruvada@linux.intel.com Subject: [PATCH v4 5/7] iio: hid-sensors: use asynchronous resume Date: Sun, 7 Aug 2016 02:25:37 -0700 Message-Id: <1470561939-14278-6-git-send-email-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1470561939-14278-1-git-send-email-srinivas.pandruvada@linux.intel.com> References: <1470561939-14278-1-git-send-email-srinivas.pandruvada@linux.intel.com> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Some platforms power off sensor hubs during S3 suspend, which will require longer time to resume. This hurts system resume time, so resume asynchronously. Signed-off-by: Srinivas Pandruvada --- drivers/iio/common/hid-sensors/hid-sensor-trigger.c | 21 ++++++++++++++++++++- include/linux/hid-sensor-hub.h | 1 + 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c index 5b41f9d..9784ae3 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c @@ -122,6 +122,14 @@ int hid_sensor_power_state(struct hid_sensor_common *st, bool state) #endif } +static void hid_sensor_set_power_work(struct work_struct *work) +{ + struct hid_sensor_common *attrb = container_of(work, + struct hid_sensor_common, + work); + _hid_sensor_power_state(attrb, true); +} + static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { @@ -170,6 +178,9 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name, goto error_unreg_trigger; iio_device_set_drvdata(indio_dev, attrb); + + INIT_WORK(&attrb->work, hid_sensor_set_power_work); + pm_suspend_ignore_children(&attrb->pdev->dev, true); pm_runtime_enable(&attrb->pdev->dev); /* Default to 3 seconds, but can be changed from sysfs */ @@ -202,7 +213,15 @@ static int hid_sensor_resume(struct device *dev) struct platform_device *pdev = to_platform_device(dev); struct iio_dev *indio_dev = platform_get_drvdata(pdev); struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev); + schedule_work(&attrb->work); + return 0; +} +static int hid_sensor_runtime_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev); return _hid_sensor_power_state(attrb, true); } @@ -211,7 +230,7 @@ static int hid_sensor_resume(struct device *dev) const struct dev_pm_ops hid_sensor_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(hid_sensor_suspend, hid_sensor_resume) SET_RUNTIME_PM_OPS(hid_sensor_suspend, - hid_sensor_resume, NULL) + hid_sensor_runtime_resume, NULL) }; EXPORT_SYMBOL(hid_sensor_pm_ops); diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h index c02b5ce..dd85f35 100644 --- a/include/linux/hid-sensor-hub.h +++ b/include/linux/hid-sensor-hub.h @@ -236,6 +236,7 @@ struct hid_sensor_common { struct hid_sensor_hub_attribute_info report_state; struct hid_sensor_hub_attribute_info power_state; struct hid_sensor_hub_attribute_info sensitivity; + struct work_struct work; }; /* Convert from hid unit expo to regular exponent */