Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932156AbaBVAuy (ORCPT ); Fri, 21 Feb 2014 19:50:54 -0500 Received: from qmta05.emeryville.ca.mail.comcast.net ([76.96.30.48]:55272 "EHLO qmta05.emeryville.ca.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932085AbaBVAus (ORCPT ); Fri, 21 Feb 2014 19:50:48 -0500 From: Shuah Khan To: m.chehab@samsung.com Cc: Shuah Khan , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, shuahkhan@gmail.com Subject: [RFC] [PATCH 4/6] media: em28xx-input - implement em28xx_ops: suspend/resume hooks Date: Fri, 21 Feb 2014 17:50:16 -0700 Message-Id: <5dc00d657718dfefedb35b055abd13997afd6979.1393027856.git.shuah.kh@samsung.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement em28xx_ops: suspend/resume hooks. em28xx usb driver will invoke em28xx_ops: suspend and resume hooks for all its extensions from its suspend() and resume() interfaces. Signed-off-by: Shuah Khan --- drivers/media/usb/em28xx/em28xx-input.c | 35 +++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c index 18f65d8..1227309 100644 --- a/drivers/media/usb/em28xx/em28xx-input.c +++ b/drivers/media/usb/em28xx/em28xx-input.c @@ -827,11 +827,46 @@ static int em28xx_ir_fini(struct em28xx *dev) return 0; } +static int em28xx_ir_suspend(struct em28xx *dev) +{ + struct em28xx_IR *ir = dev->ir; + + if (dev->is_audio_only) + return 0; + + em28xx_info("Suspending input extension"); + cancel_delayed_work_sync(&ir->work); + cancel_delayed_work_sync(&dev->buttons_query_work); + /* is canceling delayed work sufficient or does the rc event + kthread needs stopping? kthread is stopped in + ir_raw_event_unregister() */ + return 0; +} + +static int em28xx_ir_resume(struct em28xx *dev) +{ + struct em28xx_IR *ir = dev->ir; + + if (dev->is_audio_only) + return 0; + + em28xx_info("Resuming input extension"); + /* if suspend calls ir_raw_event_unregister(), the should call + ir_raw_event_register() */ + schedule_delayed_work_sync(&ir->work); + if (dev->num_button_polling_addresses) + schedule_delayed_work(&dev->buttons_query_work, + msecs_to_jiffies(dev->button_polling_interval)); + return 0; +} + static struct em28xx_ops rc_ops = { .id = EM28XX_RC, .name = "Em28xx Input Extension", .init = em28xx_ir_init, .fini = em28xx_ir_fini, + .suspend = em28xx_ir_suspend, + .resume = em28xx_ir_resume, }; static int __init em28xx_rc_register(void) -- 1.8.3.2 -- 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/