From 66800cc055de7b25eb233e70e48695b816aa2067 Mon Sep 17 00:00:00 2001
From: Aaron Shaw <shawaj@gmail.com>
Date: Fri, 8 Apr 2016 00:06:00 +0100
Subject: [PATCH] Add support for mcp7940x family of RTC

---
 arch/arm/boot/dts/overlays/README              | 2 ++
 arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 6 ++++++
 2 files changed, 8 insertions(+)

--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -435,6 +435,8 @@ Params: ds1307                  Select t
 
         ds3231                  Select the DS3231 device
 
+        mcp7940x                Select the MCP7940x device
+
         mcp7941x                Select the MCP7941x device
 
         pcf2127                 Select the PCF2127 device
--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
@@ -23,6 +23,11 @@
 				reg = <0x68>;
 				status = "disable";
 			};
+			mcp7940x: mcp7940x@6f {
+				compatible = "microchip,mcp7940x";
+				reg = <0x6f>;
+				status = "disable";
+			};
 			mcp7941x: mcp7941x@6f {
 				compatible = "microchip,mcp7941x";
 				reg = <0x6f>;
@@ -54,6 +59,7 @@
 		ds1307 = <&ds1307>,"status";
 		ds1339 = <&ds1339>,"status";
 		ds3231 = <&ds3231>,"status";
+		mcp7940x = <&mcp7940x>,"status";
 		mcp7941x = <&mcp7941x>,"status";
 		pcf2127 = <&pcf2127>,"status";
 		pcf8523 = <&pcf8523>,"status";
