drivers/rtc/rtc-palmas.c: add dt support

Add of_device_id table for Palma RTC to be enable the driver from DT file.

The driver can be registered from DT file as:
	palmas: tps65913@58 {
		:::::::::::
		palmas_rtc {
			compatible = "ti,palmas-rtc";
			interrupt-parent = <&palmas>;
			interrupts = <8 0>;
		};
	};

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/drivers/rtc/rtc-palmas.c b/drivers/rtc/rtc-palmas.c
index bbc3b9efdeb21fa930f11eae9ad80c310c389af4..50204d474eb7f76526cec457b5ca86d69ed248f4 100644 (file)
--- a/drivers/rtc/rtc-palmas.c
+++ b/drivers/rtc/rtc-palmas.c
@@ -30,6 +30,7 @@
 #include <linux/kernel.h>
 #include <linux/mfd/palmas.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/rtc.h>
 #include <linux/types.h>
 #include <linux/platform_device.h>
@@ -316,6 +317,14 @@ static const struct dev_pm_ops palmas_rtc_pm_ops = {
        SET_SYSTEM_SLEEP_PM_OPS(palmas_rtc_suspend, palmas_rtc_resume)
 };
 
+#ifdef CONFIG_OF
+static struct of_device_id of_palmas_rtc_match[] = {
+       { .compatible = "ti,palmas-rtc"},
+       { },
+};
+MODULE_DEVICE_TABLE(of, of_palmas_rtc_match);
+#endif
+
 static struct platform_driver palmas_rtc_driver = {
        .probe          = palmas_rtc_probe,
        .remove         = palmas_rtc_remove,
@@ -323,6 +332,7 @@ static struct platform_driver palmas_rtc_driver = {
                .owner  = THIS_MODULE,
                .name   = "palmas-rtc",
                .pm     = &palmas_rtc_pm_ops,
+               .of_match_table = of_match_ptr(of_palmas_rtc_match),
        },
 };