mfd: tps65910: Add alarm interrupt of TPS65910 RTC to mfd device list

Add RTC alarm interrupt details to TPS65910 MFD device list, to support
RTC alarm events.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index ca90294..0d79ce2 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -24,6 +24,14 @@
 #include <linux/mfd/tps65910.h>
 #include <linux/of_device.h>
 
+static struct resource rtc_resources[] = {
+	{
+		.start  = TPS65910_IRQ_RTC_ALARM,
+		.end    = TPS65910_IRQ_RTC_ALARM,
+		.flags  = IORESOURCE_IRQ,
+	}
+};
+
 static struct mfd_cell tps65910s[] = {
 	{
 		.name = "tps65910-gpio",
@@ -33,6 +41,8 @@
 	},
 	{
 		.name = "tps65910-rtc",
+		.num_resources = ARRAY_SIZE(rtc_resources),
+		.resources = &rtc_resources[0],
 	},
 	{
 		.name = "tps65910-power",