From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>,
Doug Anderson <dianders@chromium.org>,
Krzysztof Kozlowski <k.kozlowski@samsung.com>,
rtc-linux@googlegroups.com, linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Subject: [PATCH v10 1/6] rtc: max77686: Allow the max77686 rtc to wakeup the system
Date: Fri, 19 Sep 2014 12:26:12 +0200 [thread overview]
Message-ID: <1411122377-10426-2-git-send-email-javier.martinez@collabora.co.uk> (raw)
In-Reply-To: <1411122377-10426-1-git-send-email-javier.martinez@collabora.co.uk>
From: Doug Anderson <dianders@chromium.org>
The max77686 includes an RTC that keeps power during suspend. It's
convenient to be able to use it as a wakeup source.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
---
Changes since v9:
- Remove note from Doug that is not applicable anymore due changes in the
i2c driver.
- Add s-o-b since I'm in the patch delivery path. Suggested by Andrew Morton.
Changes since v8: None
Changes since v7: None
Changes since v6: None
Changes since v5:
- Fix $SUBJECT since the patch does not actually touch the mfd subsys.
Suggested by Lee Jones.
Changes since v4: None
Changes since v3:
- Keep the note that this patch needs another change due wakeup
ordering problems.
drivers/rtc/rtc-max77686.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
index d20a7f0..c1c6055 100644
--- a/drivers/rtc/rtc-max77686.c
+++ b/drivers/rtc/rtc-max77686.c
@@ -583,6 +583,33 @@ static void max77686_rtc_shutdown(struct platform_device *pdev)
#endif /* MAX77686_RTC_WTSR_SMPL */
}
+#ifdef CONFIG_PM_SLEEP
+static int max77686_rtc_suspend(struct device *dev)
+{
+ if (device_may_wakeup(dev)) {
+ struct max77686_rtc_info *info = dev_get_drvdata(dev);
+
+ return enable_irq_wake(info->virq);
+ }
+
+ return 0;
+}
+
+static int max77686_rtc_resume(struct device *dev)
+{
+ if (device_may_wakeup(dev)) {
+ struct max77686_rtc_info *info = dev_get_drvdata(dev);
+
+ return disable_irq_wake(info->virq);
+ }
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max77686_rtc_pm_ops,
+ max77686_rtc_suspend, max77686_rtc_resume);
+
static const struct platform_device_id rtc_id[] = {
{ "max77686-rtc", 0 },
{},
@@ -592,6 +619,7 @@ static struct platform_driver max77686_rtc_driver = {
.driver = {
.name = "max77686-rtc",
.owner = THIS_MODULE,
+ .pm = &max77686_rtc_pm_ops,
},
.probe = max77686_rtc_probe,
.shutdown = max77686_rtc_shutdown,
--
2.1.0
next prev parent reply other threads:[~2014-09-19 10:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-19 10:26 [PATCH v10 0/6] Add Maxim 77802 RTC support Javier Martinez Canillas
2014-09-19 10:26 ` Javier Martinez Canillas [this message]
2014-09-19 10:26 ` [PATCH v10 2/6] rtc: max77686: Remove dead code for SMPL and WTSR Javier Martinez Canillas
2014-09-19 10:26 ` [PATCH v10 3/6] rtc: max77686: Fail to probe if no RTC regmap irqchip is set Javier Martinez Canillas
2014-09-19 10:26 ` [PATCH v10 4/6] rtc: max77686: Remove unneded info log Javier Martinez Canillas
2014-09-19 10:26 ` [PATCH v10 5/6] rtc: max77686: Use ffs() to calculate tm_wday Javier Martinez Canillas
2014-09-19 14:39 ` Joe Perches
2014-09-19 19:27 ` Javier Martinez Canillas
2014-09-19 19:52 ` Joe Perches
2014-09-19 21:44 ` Javier Martinez Canillas
2014-09-19 10:26 ` [PATCH v10 6/6] rtc: Add driver for Maxim 77802 PMIC Real-Time-Clock Javier Martinez Canillas
2014-09-20 0:14 ` [PATCH v10 0/6] Add Maxim 77802 RTC support Doug Anderson
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