rtc: ep93xx: add DT support for Cirrus EP93xx

- Find register range from the device tree.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>

diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index acae7f16808f76f0493c330d893d61d8bbb95270..1fdd20d01560ef4fae2b996cf366b4f812329225 100644 (file)
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
@@ -148,9 +149,16 @@ static int ep93xx_rtc_probe(struct platform_device *pdev)
        return devm_rtc_register_device(ep93xx_rtc->rtc);
 }
 
+static const struct of_device_id ep93xx_rtc_of_ids[] = {
+       { .compatible = "cirrus,ep9301-rtc" },
+       { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, ep93xx_rtc_of_ids);
+
 static struct platform_driver ep93xx_rtc_driver = {
        .driver         = {
                .name   = "ep93xx-rtc",
+               .of_match_table = ep93xx_rtc_of_ids,
        },
        .probe          = ep93xx_rtc_probe,
 };