[PATCH RESEND v5] rtc: Add device tree support for LPC32xx

This patch adds device tree support for rtc-lpc32xx.c

Signed-off-by: Roland Stigge <stigge@antcom.de>



Applies to v3.4-rc5

Changes since v4:
* Reduced "compatible" strings to just the first one

Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt | 15 +++++++++++++++
drivers/rtc/rtc-lpc32xx.c | 12 +++++++++++-
2 files changed, 26 insertions(+), 1 deletion(-)

/dev/null
+++ linux-2.6/Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt
@@ -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>;
+ };
linux-2.6.orig/drivers/rtc/rtc-lpc32xx.c
+++ linux-2.6/drivers/rtc/rtc-lpc32xx.c
@@ -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_r
#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),
},
};

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