openwrtv4/target/linux/brcm2708/patches-4.4/0242-Add-support-for-mcp7940x-family-of-RTC.patch
Álvaro Fernández Rojas 2b1c6b21b5 brcm2708: update linux 4.4 patches to latest version
As usual these patches were extracted and rebased from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y

Also adds support for Raspberry Pi Compute Module 3 (untested).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2016-09-10 14:54:26 +02:00

43 lines
1.3 KiB
Diff

From 215eb99b0a93a3365c7e3819b2701b416f88a25a 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";