View difference between Paste ID: F4SV57NS and 7fdKLCZK

 /dts-v1/;
 /plugin/;
 
 #include <dt-bindings/board/am335x-bbw-bbb-base.h>
 #include <dt-bindings/pinctrl/am33xx.h>
 #include <dt-bindings/gpio/gpio.h>
 
-// file identification
+/ {
-&{/chosen} {
+	// file identification
-	overlays {
+	fragment@0 {
-		// XXX change property name to the name of this overlay (excluding .dts file suffix)
+		target-path = "/chosen";
-		gpio-demo = __TIMESTAMP__;
+		__overlay__ {
 			overlays {
-};
+				// XXX change property name to the name of this overlay (excluding .dts file suffix)
 				gpio-demo = __TIMESTAMP__;
-// XXX caution: not compatible with cape-universal!
+			};
 		};
-// A udev rule along these lines is recommended to create symlinks in /dev/gpio/
+
-//
+
-//	SUBSYSTEM=="subsystem", KERNEL=="gpio", ACTION=="add", \
+	// XXX caution: not compatible with cape-universal!
-//		RUN+="/bin/mkdir -p /dev/gpio"
+
-//
+	// A udev rule along these lines is recommended to create symlinks in /dev/gpio/
-//	SUBSYSTEM=="gpio", ACTION=="add", TEST=="value", ATTR{label}!="sysfs", \
+	//
-//		RUN+="/bin/ln -sT '/sys/class/gpio/%k' /dev/gpio/%s{label}"
+	//	SUBSYSTEM=="subsystem", KERNEL=="gpio", ACTION=="add", \
 	//		RUN+="/bin/mkdir -p /dev/gpio"
-&{/} {
+	//
-	// If you want to use multiple overlays that do gpio configuration, be
+	//	SUBSYSTEM=="gpio", ACTION=="add", TEST=="value", ATTR{label}!="sysfs", \
-	// sure that each uses a different device tree node!
+	//		RUN+="/bin/ln -sT '/sys/class/gpio/%k' /dev/gpio/%s{label}"
-	gpio-demo {
+
-		compatible = "gpio-of-helper";
+	fragment@1 {
 		target-path = "/";
-		// It is usually not *strictly* required to perform pinmux for
+		__overlay__ {
-		// GPIOs since this is typically their default, but it's good
+			// If you want to use multiple overlays that do gpio configuration, be
-		// practice to do it anyway since:
+			// sure that each uses a different device tree node!
-		// 1. it makes *sure* the pinmux is right
+			gpio-demo {
-		// 2. you can configure internal pull-up/down
+				compatible = "gpio-of-helper";
-		// 3. it lets the kernel know the pins are in use
+
-		pinctrl-names = "default";
+				// It is usually not *strictly* required to perform pinmux for
-		pinctrl-0 = <&gpio_demo_pins>;
+				// GPIOs since this is typically their default, but it's good
 				// practice to do it anyway since:
-		// Note that gpio numbers for each pin can be found in the
+				// 1. it makes *sure* the pinmux is right
-		// comments in include/bone/black.h
+				// 2. you can configure internal pull-up/down
 				// 3. it lets the kernel know the pins are in use
-		// input only, active-low; connect button between pin and gnd.
+				pinctrl-names = "default";
-		// declaring the gpio as ACTIVE_LOW means the value reads as 1
+				pinctrl-0 = <&gpio_demo_pins>;
-		// when the button is pressed.
+
-		button {
+				// Note that gpio numbers for each pin can be found in the
-			gpio = <&gpio2 2 GPIO_ACTIVE_LOW>;  // P8.07
+				// comments in include/bone/black.h
-			input;
+
 				// input only, active-low; connect button between pin and gnd.
 				// declaring the gpio as ACTIVE_LOW means the value reads as 1
-		// output only, active-low, initially high (inactive)
+				// when the button is pressed.
-		reset-thing {
+				button {
-			gpio = <&gpio2 3 GPIO_ACTIVE_LOW>;  // P8.08
+					gpio = <&gpio2 2 GPIO_ACTIVE_LOW>;  // P8.07
-			init-high;
+					input;
 				};
 
-		// note: GPIO_ACTIVE_LOW inverts the meaning of the value, but it
+				// output only, active-low, initially high (inactive)
-		// does not invert the meaning of "init-low" / "init-high" !
+				reset-thing {
 					gpio = <&gpio2 3 GPIO_ACTIVE_LOW>;  // P8.08
 					init-high;
-		// bidirectional, initially input
+				};
-		input-bidi {
+
-			gpio = <&gpio2 5 GPIO_ACTIVE_HIGH>;  // P8.09
+				// note: GPIO_ACTIVE_LOW inverts the meaning of the value, but it
-			input;
+				// does not invert the meaning of "init-low" / "init-high" !
-			dir-changeable;
+
 
 				// bidirectional, initially input
-		// bidirectional, initially output, initially low (inactive)
+				input-bidi {
-		output-bidi {
+					gpio = <&gpio2 5 GPIO_ACTIVE_HIGH>;  // P8.09
-			gpio = <&gpio2 4 GPIO_ACTIVE_HIGH>;  // P8.10
+					input;
-			init-low;
+					dir-changeable;
-			dir-changeable;
+				};
 
 				// bidirectional, initially output, initially low (inactive)
-};
+				output-bidi {
 					gpio = <&gpio2 4 GPIO_ACTIVE_HIGH>;  // P8.10
-&am33xx_pinmux {
+					init-low;
-	gpio_demo_pins: gpio-demo {
+					dir-changeable;
-		pinctrl-single,pins = <
+				};
-			BONE_P8_07 (PIN_INPUT_PULLUP | MUX_MODE7 )  // gpio 2.02 / button
+			};
-			BONE_P8_08 (PIN_INPUT_PULLUP | MUX_MODE7 )  // gpio 2.03 / reset-thing
+
-			BONE_P8_09 (PIN_INPUT_PULLUP | MUX_MODE7 )  // gpio 2.05 / input-bidi
+
-			BONE_P8_10 (PIN_INPUT_PULLUP | MUX_MODE7 )  // gpio 2.04 / output-bidi
+
-		>;
+	fragment@2 {
 		target = <&am33xx_pinmux>;
 		__overlay__ {
 			gpio_demo_pins: gpio-demo {
 				pinctrl-single,pins = <
 					BONE_P8_07 (PIN_INPUT_PULLUP | MUX_MODE7 )  // gpio 2.02 / button
 					BONE_P8_08 (PIN_INPUT_PULLUP | MUX_MODE7 )  // gpio 2.03 / reset-thing
 					BONE_P8_09 (PIN_INPUT_PULLUP | MUX_MODE7 )  // gpio 2.05 / input-bidi
 					BONE_P8_10 (PIN_INPUT_PULLUP | MUX_MODE7 )  // gpio 2.04 / output-bidi
 				>;
 			};
 		};
 	};
 };