From: Henry Chen <henryc.chen@mediatek.com>
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>,
Eddie Huang <eddie.huang@mediatek.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<rtc-linux@googlegroups.com>, <linux-kernel@vger.kernel.org>,
Henry Chen <henryc.chen@mediatek.com>
Subject: [PATCH] rtc: mt6397: implement suspend/resume function in rtc-mt6397 driver
Date: Thu, 30 Jul 2015 22:53:14 +0800 [thread overview]
Message-ID: <1438267994-13934-1-git-send-email-henryc.chen@mediatek.com> (raw)
Implement the suspend/resume function in order to control rtc's irq_wake flag and handle as wakeup source.
Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
---
drivers/rtc/rtc-mt6397.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c
index c0090b6..9f6c9f8 100644
--- a/drivers/rtc/rtc-mt6397.c
+++ b/drivers/rtc/rtc-mt6397.c
@@ -373,6 +373,31 @@ static int mtk_rtc_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int mt6397_rtc_suspend(struct device *dev)
+{
+ struct mt6397_rtc *rtc = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(rtc->irq);
+
+ return 0;
+}
+
+static int mt6397_rtc_resume(struct device *dev)
+{
+ struct mt6397_rtc *rtc = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(rtc->irq);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mt6397_pm_ops, mt6397_rtc_suspend,
+ mt6397_rtc_resume);
+
static const struct of_device_id mt6397_rtc_of_match[] = {
{ .compatible = "mediatek,mt6397-rtc", },
{ }
@@ -382,6 +407,7 @@ static struct platform_driver mtk_rtc_driver = {
.driver = {
.name = "mt6397-rtc",
.of_match_table = mt6397_rtc_of_match,
+ .pm = &mt6397_pm_ops,
},
.probe = mtk_rtc_probe,
.remove = mtk_rtc_remove,
--
1.8.1.1.dirty
next reply other threads:[~2015-07-30 14:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-30 14:53 Henry Chen [this message]
2015-07-31 1:32 ` [PATCH] rtc: mt6397: implement suspend/resume function in rtc-mt6397 driver Eddie Huang
2015-08-05 1:46 ` Alexandre Belloni
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1438267994-13934-1-git-send-email-henryc.chen@mediatek.com \
--to=henryc.chen@mediatek.com \
--cc=a.zummo@towertech.it \
--cc=alexandre.belloni@free-electrons.com \
--cc=eddie.huang@mediatek.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=matthias.bgg@gmail.com \
--cc=rtc-linux@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).