openwrt/target/linux/brcm2708/patches-4.4/0188-BCM270X_DT-Build-and-document-the-wittypi-overlay.patch

From fd1aeca317a5c84e700ca5198e8759e9063661a6 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 15 Mar 2016 16:41:37 +0000
Subject: [PATCH 188/304] BCM270X_DT: Build and document the wittypi overlay

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
 arch/arm/boot/dts/overlays/Makefile            | 1 +
 arch/arm/boot/dts/overlays/README              | 8 ++++++++
 arch/arm/boot/dts/overlays/wittypi-overlay.dts | 2 +-
 3 files changed, 10 insertions(+), 1 deletion(-)

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -74,6 +74,7 @@ dtbo-$(RPI_DT_OVERLAYS) += vc4-kms-v3d.d
 dtbo-$(RPI_DT_OVERLAYS) += vga666.dtbo
 dtbo-$(RPI_DT_OVERLAYS) += w1-gpio.dtbo
 dtbo-$(RPI_DT_OVERLAYS) += w1-gpio-pullup.dtbo
+dtbo-$(RPI_DT_OVERLAYS) += wittypi.dtbo
 
 targets += dtbs dtbs_install
 targets += $(dtbo-y)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -920,6 +920,14 @@ Params: gpiopin                 GPIO for
         extpullup               GPIO for external pullup (default "5")
 
 
+Name:   wittypi
+Info:   Configures the wittypi RTC module.
+Load:   dtoverlay=wittypi,<param>=<val>
+Params: led_gpio                GPIO for LED (default "17")
+        led_trigger             Choose which activity the LED tracks (default
+                                "default-on")
+
+
 Troubleshooting
 ===============
 
--- a/arch/arm/boot/dts/overlays/wittypi-overlay.dts
+++ b/arch/arm/boot/dts/overlays/wittypi-overlay.dts
@@ -37,7 +37,7 @@
 	};
 
 	__overrides__ {
-		led_gpio =		<&wittypi_led>,"gpios:4";
+		led_gpio =	<&wittypi_led>,"gpios:4";
 		led_trigger =	<&wittypi_led>,"linux,default-trigger";
 	};