From 279672913fcfef646da84cadf74a486d4b7133e2 Mon Sep 17 00:00:00 2001
From: Peter Oostewechel <peter_oostewechel@hotmail.com>
Date: Sun, 18 Feb 2018 01:24:07 +0100
Subject: [PATCH 1/3] Added gpio-poweroff driver overlay for sun8i-h3

This is meant to support true power off by power switch for battery powered applications. The gpio-poweroff driver will toggle a pin if the system is halted. An external micro can then turn off the power to the processor.
---
 sun8i-h3/sun8i-h3-gpio-poweroff.dts | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 sun8i-h3/sun8i-h3-gpio-poweroff.dts

diff --git a/sun8i-h3/sun8i-h3-gpio-poweroff.dts b/sun8i-h3/sun8i-h3-gpio-poweroff.dts
new file mode 100644
index 0000000..0a73a04
--- /dev/null
+++ b/sun8i-h3/sun8i-h3-gpio-poweroff.dts
@@ -0,0 +1,28 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "allwinner,sun8i-h3";
+
+	fragment@0 {
+		target = <&pio>;
+		__overlay__ {
+			pwr_off_pins: pwr_off_pins {
+				pins = "PG11";
+				function = "gpio_out";
+			};
+		};
+	};
+
+	fragment@1 {
+		target-path = "/";
+		__overlay__ {
+			gpio-poweroff {
+				compatible = "gpio-poweroff";
+				pinctrl-names = "default";
+                                pinctrl-0 = <&pwr_off_pins>;
+				gpios = <&pio 6 11 0>;
+			};
+		};
+	};
+};

From dfeedc4a90d8ab4a3409e7991e57a6b8ca81e3b4 Mon Sep 17 00:00:00 2001
From: Peter Oostewechel <peter_oostewechel@hotmail.com>
Date: Sun, 18 Feb 2018 02:02:56 +0100
Subject: [PATCH 2/3] Updated README.sun8i-h3-overlays with gpio-poweroff
 overlay

---
 sun8i-h3/README.sun8i-h3-overlays | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/sun8i-h3/README.sun8i-h3-overlays b/sun8i-h3/README.sun8i-h3-overlays
index 3029734..030c8b0 100644
--- a/sun8i-h3/README.sun8i-h3-overlays
+++ b/sun8i-h3/README.sun8i-h3-overlays
@@ -17,6 +17,7 @@ adding fixed software (GPIO) chip selects is possible with a separate overlay
 
 - analog-codec
 - cir
+- gpio-poweroff
 - i2c0
 - i2c1
 - i2c2
@@ -68,6 +69,16 @@ I2C2 pins (SCL, SDA): PE12, PE13
 
 On most board this bus is wired to Camera (CSI) socket
 
+### gpio-poweroff
+
+Activates poweroff gpio driver, this driver toggles a pin when the system shuts down
+
+Parameters:
+
+param_pwr_off_pin (pin)
+	Pin which outputs poweroff signal when system halts
+	Default: PG11
+
 ### pps-gpio
 
 Activates pulse-per-second GPIO client

From 6ceb92f09af1dbf9b019624ea96bd82dc4eb86d4 Mon Sep 17 00:00:00 2001
From: Peter Oostewechel <peter_oostewechel@hotmail.com>
Date: Mon, 19 Feb 2018 19:44:28 +0100
Subject: [PATCH 3/3] Fixed indenting in sun8i-h3-gpio-poweroff overlay

---
 sun8i-h3/sun8i-h3-gpio-poweroff.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sun8i-h3/sun8i-h3-gpio-poweroff.dts b/sun8i-h3/sun8i-h3-gpio-poweroff.dts
index 0a73a04..7146c85 100644
--- a/sun8i-h3/sun8i-h3-gpio-poweroff.dts
+++ b/sun8i-h3/sun8i-h3-gpio-poweroff.dts
@@ -20,7 +20,7 @@
 			gpio-poweroff {
 				compatible = "gpio-poweroff";
 				pinctrl-names = "default";
-                                pinctrl-0 = <&pwr_off_pins>;
+				pinctrl-0 = <&pwr_off_pins>;
 				gpios = <&pio 6 11 0>;
 			};
 		};