Openwrt/target/linux/brcm2708/patches-3.18/0109-Add-device-tree-overlay-for-pcf2127.patch

From 37973590d43217e3f7c4d905578b1b3324ea45c4 Mon Sep 17 00:00:00 2001
From: Byron Bradley <byronb@afterthoughtsoftware.com>
Date: Fri, 6 Feb 2015 14:19:41 +0000
Subject: [PATCH 109/114] Add device-tree overlay for pcf2127

Signed-off-by: Byron Bradley <byronb@afterthoughtsoftware.com>
---
 arch/arm/boot/dts/Makefile                |  1 +
 arch/arm/boot/dts/pcf2127-rtc-overlay.dts | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 arch/arm/boot/dts/pcf2127-rtc-overlay.dts

--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -72,6 +72,7 @@ dtb-$(RPI_DT_OVERLAYS) += hifiberry-amp-
 dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += lirc-rpi-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += pcf2127-rtc-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += pcf8523-rtc-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += pps-gpio-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += w1-gpio-overlay.dtb
--- /dev/null
+++ b/arch/arm/boot/dts/pcf2127-rtc-overlay.dts
@@ -0,0 +1,22 @@
+// Definitions for PCF2127 Real Time Clock
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708";
+
+	fragment@0 {
+		target = <&i2c1>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			pcf2127@51 {
+				compatible = "nxp,pcf2127";
+				reg = <0x51>;
+				status = "okay";
+			};
+		};
+	};
+};