diff options
| author | Bibek Basu <bbasu@nvidia.com> | 2015-01-28 11:41:13 +0530 |
|---|---|---|
| committer | Winnie Hsu <whsu@nvidia.com> | 2015-01-29 21:48:24 -0800 |
| commit | 3ab290755e0be6b207a5cd79f507c456195bba58 (patch) | |
| tree | df754984a35bcb292d7bf5461f21f5ed6a839c10 | |
| parent | 097e6ff87a8450a0040091d7a69e9894611df6e6 (diff) | |
rtc: as3722: add shutdown support
When shutdown process is ongoing, dont allow rtc
read/write/irq activity.Add shutdown hook to the
driver to disable irq and cancel any pending
irq_work
Bug 200072946
Change-Id: I1a68d17ec49ee32e849ad965a144b84be19ba6c5
Signed-off-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-on: http://git-master/r/677751
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
| -rw-r--r-- | drivers/rtc/rtc-as3722.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-as3722.c b/drivers/rtc/rtc-as3722.c index 555deef242ff..88983391686c 100644 --- a/drivers/rtc/rtc-as3722.c +++ b/drivers/rtc/rtc-as3722.c @@ -2,7 +2,7 @@ * rtc-as3722.c - Real Time Clock driver for ams AS3722 PMICs * * Copyright (C) 2013 ams AG - * Copyright (c) 2013, NVIDIA Corporation. All rights reserved. + * Copyright (c) 2013-2015, NVIDIA Corporation. All rights reserved. * * Author: Florian Lobmaier <florian.lobmaier@ams.com> * Author: Laxman Dewangan <ldewangan@nvidia.com> @@ -239,6 +239,14 @@ static int as3722_rtc_remove(struct platform_device *pdev) return 0; } +void as3722_rtc_shutdown(struct platform_device *pdev) +{ + struct as3722_rtc *as3722_rtc = platform_get_drvdata(pdev); + + as3722_rtc_alarm_irq_enable(as3722_rtc->dev, 0); + rtc_device_shutdown(as3722_rtc->rtc); +} + #ifdef CONFIG_PM_SLEEP static int as3722_rtc_suspend(struct device *dev) { @@ -286,6 +294,7 @@ static const struct dev_pm_ops as3722_rtc_pm_ops = { static struct platform_driver as3722_rtc_driver = { .probe = as3722_rtc_probe, .remove = as3722_rtc_remove, + .shutdown = as3722_rtc_shutdown, .driver = { .name = "as3722-rtc", .pm = &as3722_rtc_pm_ops, |