The patch titled
drivers/rtc/rtc-jz4740.c: add alarm function
has been added to the -mm tree. Its filename is
drivers-rtc-rtc-jz4740c-add-alarm-function.patch
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------------------------------------------------------
Subject: drivers/rtc/rtc-jz4740.c: add alarm function
From: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
Add the "alarm" function to the jz4740 RTC. Interrupts will now be raised
when the "alarm" time is reached.
Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
Cc: Wan ZongShun <mcuos.com@xxxxxxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
Cc: Paul Gortmaker <p_gortmaker@xxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/rtc/rtc-jz4740.c | 45 ++++++++++++++++++++++++++++++++-----
1 file changed, 40 insertions(+), 5 deletions(-)
diff -puN drivers/rtc/rtc-jz4740.c~drivers-rtc-rtc-jz4740c-add-alarm-function drivers/rtc/rtc-jz4740.c
--- a/drivers/rtc/rtc-jz4740.c~drivers-rtc-rtc-jz4740c-add-alarm-function
+++ a/drivers/rtc/rtc-jz4740.c
@@ -1,5 +1,6 @@
/*
* Copyright (C) 2009-2010, Lars-Peter Clausen <lars@xxxxxxxxxx>
+ * Copyright (C) 2010, Paul Cercueil <paul@xxxxxxxxxxxxxxx>
* JZ4740 SoC RTC driver
*
* This program is free software; you can redistribute it and/or modify it
@@ -161,7 +162,8 @@ static int jz4740_rtc_set_alarm(struct d
ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_SEC_ALARM, secs);
if (!ret)
- ret = jz4740_rtc_ctrl_set_bits(rtc, JZ_RTC_CTRL_AE, alrm->enabled);
+ ret = jz4740_rtc_ctrl_set_bits(rtc,
+ JZ_RTC_CTRL_AE | JZ_RTC_CTRL_AF_IRQ, alrm->enabled);
return ret;
}
@@ -258,6 +260,8 @@ static int __devinit jz4740_rtc_probe(st
platform_set_drvdata(pdev, rtc);
+ device_init_wakeup(&pdev->dev, 1);
+
rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, &jz4740_rtc_ops,
THIS_MODULE);
if (IS_ERR(rtc->rtc)) {
@@ -318,12 +322,43 @@ static int __devexit jz4740_rtc_remove(s
return 0;
}
+
+#ifdef CONFIG_PM
+static int jz4740_rtc_suspend(struct device *dev)
+{
+ struct jz4740_rtc *rtc = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(rtc->irq);
+ return 0;
+}
+
+static int jz4740_rtc_resume(struct device *dev)
+{
+ struct jz4740_rtc *rtc = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(rtc->irq);
+ return 0;
+}
+
+static const struct dev_pm_ops jz4740_pm_ops = {
+ .suspend = jz4740_rtc_suspend,
+ .resume = jz4740_rtc_resume,
+};
+#define JZ4740_RTC_PM_OPS (&jz4740_pm_ops)
+
+#else
+#define JZ4740_RTC_PM_OPS NULL
+#endif /* CONFIG_PM */
+
struct platform_driver jz4740_rtc_driver = {
- .probe = jz4740_rtc_probe,
- .remove = __devexit_p(jz4740_rtc_remove),
- .driver = {
- .name = "jz4740-rtc",
+ .probe = jz4740_rtc_probe,
+ .remove = __devexit_p(jz4740_rtc_remove),
+ .driver = {
+ .name = "jz4740-rtc",
.owner = THIS_MODULE,
+ .pm = JZ4740_RTC_PM_OPS,
},
};
_
Patches currently in -mm which might be from paul@xxxxxxxxxxxxxxx are
drivers-rtc-rtc-jz4740c-add-alarm-function.patch
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