RTC: add DT bindings to pxa-rtc

This patch adds generic device tree bindings to the PXA RTC driver.
Documentation for bindings were also added.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>

diff --git a/Documentation/devicetree/bindings/rtc/pxa-rtc.txt b/Documentation/devicetree/bindings/rtc/pxa-rtc.txt
new file mode 100644 (file)
index 0000000..8c6672a
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/pxa-rtc.txt
@@ -0,0 +1,14 @@
+* PXA RTC
+
+PXA specific RTC driver.
+
+Required properties:
+- compatible : Should be "marvell,pxa-rtc"
+
+Examples:
+
+rtc@40900000 {
+       compatible = "marvell,pxa-rtc";
+       reg = <0x40900000 0x3c>;
+       interrupts = <30 31>;
+};

diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c
index 0075c8f..f771b2e 100644 (file)
--- a/drivers/rtc/rtc-pxa.c
+++ b/drivers/rtc/rtc-pxa.c
@@ -27,6 +27,8 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <mach/hardware.h>
 
@@ -396,6 +398,14 @@ static int __exit pxa_rtc_remove(struct platform_device *pdev)
        return 0;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id pxa_rtc_dt_ids[] = {
+       { .compatible = "marvell,pxa-rtc" },
+       {}
+};
+MODULE_DEVICE_TABLE(of, pxa_rtc_dt_ids);
+#endif
+
 #ifdef CONFIG_PM
 static int pxa_rtc_suspend(struct device *dev)
 {
@@ -425,6 +435,7 @@ static struct platform_driver pxa_rtc_driver = {
        .remove         = __exit_p(pxa_rtc_remove),
        .driver         = {
                .name   = "pxa-rtc",
+               .of_match_table = of_match_ptr(pxa_rtc_dt_ids),
 #ifdef CONFIG_PM
                .pm     = &pxa_rtc_pm_ops,
 #endif