drivers/rtc/rtc-ds1742.c: add devicetree support

This patch allows the driver to be enabled with devicetree.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index 17b73fdc3b6e..d7f74f5e9090 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -13,12 +13,13 @@
  */
 
 #include <linux/bcd.h>
-#include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/gfp.h>
 #include <linux/delay.h>
 #include <linux/jiffies.h>
 #include <linux/rtc.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/module.h>
@@ -215,12 +216,19 @@ static int ds1742_rtc_remove(struct platform_device *pdev)
         return 0;
 }
 
+static struct of_device_id __maybe_unused ds1742_rtc_of_match[] = {
+        { .compatible = "maxim,ds1742", },
+        { }
+};
+MODULE_DEVICE_TABLE(of, ds1742_rtc_of_match);
+
 static struct platform_driver ds1742_rtc_driver = {
         .probe          = ds1742_rtc_probe,
         .remove         = ds1742_rtc_remove,
         .driver         = {
                 .name   = "rtc-ds1742",
                 .owner  = THIS_MODULE,
+                .of_match_table = of_match_ptr(ds1742_rtc_of_match),
         },
 };