Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753368AbbDCNAT (ORCPT ); Fri, 3 Apr 2015 09:00:19 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:32952 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753051AbbDCM63 (ORCPT ); Fri, 3 Apr 2015 08:58:29 -0400 From: Tomeu Vizoso To: linux-pm@vger.kernel.org Cc: Tomeu Vizoso , Dmitry Torokhov , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/7] Input: Add input_dev.stay_runtime_suspended flag Date: Fri, 3 Apr 2015 14:57:51 +0200 Message-Id: <1428065887-16017-3-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.3.4 In-Reply-To: <1428065887-16017-1-git-send-email-tomeu.vizoso@collabora.com> References: <1428065887-16017-1-git-send-email-tomeu.vizoso@collabora.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2244 Lines: 69 It indicates that if the device is runtime suspended when the system goes into a sleep state, it will be left in that state instead of suspended and resumed. It's useful for devices such as UVC that register an input device for the buttons that they may have and that should remain runtime suspended when the system suspends. Signed-off-by: Tomeu Vizoso --- drivers/input/input.c | 8 ++++++++ include/linux/input.h | 4 ++++ 2 files changed, 12 insertions(+) diff --git a/drivers/input/input.c b/drivers/input/input.c index 9666309..2bcc708 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -1741,12 +1741,20 @@ static int input_dev_poweroff(struct device *dev) return 0; } +static int input_dev_prepare(struct device *dev) +{ + struct input_dev *input_dev = to_input_dev(dev); + + return input_dev->stay_runtime_suspended; +} + static const struct dev_pm_ops input_dev_pm_ops = { .suspend = input_dev_suspend, .resume = input_dev_resume, .freeze = input_dev_freeze, .poweroff = input_dev_poweroff, .restore = input_dev_resume, + .prepare = input_dev_prepare, }; static int input_class_prepare(struct device *dev) diff --git a/include/linux/input.h b/include/linux/input.h index 82ce323..7466961 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -117,6 +117,9 @@ struct input_value { * @vals: array of values queued in the current frame * @devres_managed: indicates that devices is managed with devres framework * and needs not be explicitly unregistered or freed. + * @stay_runtime_suspended: indicates that if the device is runtime suspended + * when the system goes into a sleep state, it will be left in that state + * instead of suspended and resumed */ struct input_dev { const char *name; @@ -187,6 +190,7 @@ struct input_dev { struct input_value *vals; bool devres_managed; + bool stay_runtime_suspended; }; #define to_input_dev(d) container_of(d, struct input_dev, dev) -- 2.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/