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drivers/rtc/rtc-lpc32xx.c: add device tree support

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Adds device tree support for rtc-lpc32xx.c

Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Roland Stigge 2012-05-29 15:07:39 -07:00 committed by Linus Torvalds
parent bcffb10f28
commit e862e7c4ee
2 changed files with 26 additions and 1 deletions
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15
Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt Normal file
View file

@ -0,0 +1,15 @@
* NXP LPC32xx SoC Real Time Clock controller
Required properties:
- compatible: must be "nxp,lpc3220-rtc"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: The RTC interrupt
Example:
rtc@40024000 {
compatible = "nxp,lpc3220-rtc";
reg = <0x40024000 0x1000>;
interrupts = <52 0>;
};

12
drivers/rtc/rtc-lpc32xx.c
View file

@ -19,6 +19,7 @@
#include <linux/rtc.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/of.h>
/*
* Clock and Power control register offsets
@ -386,13 +387,22 @@ static const struct dev_pm_ops lpc32xx_rtc_pm_ops = {
#define LPC32XX_RTC_PM_OPS NULL
#endif
#ifdef CONFIG_OF
static const struct of_device_id lpc32xx_rtc_match[] = {
{ .compatible = "nxp,lpc3220-rtc" },
{ }
};
MODULE_DEVICE_TABLE(of, lpc32xx_rtc_match);
#endif
static struct platform_driver lpc32xx_rtc_driver = {
.probe = lpc32xx_rtc_probe,
.remove = __devexit_p(lpc32xx_rtc_remove),
.driver = {
.name = RTC_NAME,
.owner = THIS_MODULE,
.pm = LPC32XX_RTC_PM_OPS
.pm = LPC32XX_RTC_PM_OPS,
.of_match_table = of_match_ptr(lpc32xx_rtc_match),
},
};