Hi,

 

I use kernel version 4.19.62-sunxi on my Orange Pi One and I want compile the following devide tree overlay:

 

/dts-v1/;
/plugin/;

/ {
	compatible = "allwinner,sun4i-a10", "allwinner,sun7i-a20", "allwinner,sun8i-h3", "allwinner,sun50i-a64", "allwinner,sun50i-h5";

	fragment@0 {
		target = <&pio>;
		__overlay__ {
			gpio_button_0: gpio_button_0 {
				pins = "PA20";
				function = "gpio_in";
				bias-pull-up;
			};
		};
	};

	fragment@1 {
		target-path = "/";
		__overlay__ {
			gpio-keys-user {
				compatible = "gpio-keys";
				pinctrl-names = "default";
				pinctrl-0 = <&gpio_button_0>;

				power_button {
					label = "GPIO Key Power";
					linux,code = <KEY_POWER>;
					gpios = <&pio 0 20 GPIO_ACTIVE_LOW>;
				};
			};
		};
	};
};

 

dtc -I dts -O dtb -o overlay-user/test.dtbo overlay-user/gpio-poweroff.dts

 

But the DTC outputs the following error:

 

Error: overlay-user/gpio-poweroff.dts:2.2-8 syntax error
FATAL ERROR: Unable to parse input tree

 

What is wrong with this overlay?

Moved to Common issues / peer to peer technical support

linux,code = <KEY_POWER>;
gpios = <&pio 0 20 GPIO_ACTIVE_LOW>;

 

These two lines. When compiling outside of the kernel source, constants like GPIO_ACTIVE_LOW don't get resolved because they don't have the kernel headers included in the compilation path.

 

If you have the linux kernel sources downloaded, a simple grep will tell you what they're supposed to be.

 

tparys@wander:linux/include/dt-bindings$ grep -r GPIO_ACTIVE_LOW .
./gpio/gpio.h:#define GPIO_ACTIVE_LOW 1

 

I'd also check that KEY_POWER is correct. That's not part of the 5.10 mainline, as far as I see.

 

In the future, just comment out parts of your dtc overlay until it compiles, and add parts back in until it breaks. Should narrow your problems down pretty quick.

Hi,

 

sorry, but this doesn´t solve the problem. I reduce the overlay to 

 

/dts-v1/;
/plugin/;

/ {
	compatible = "allwinner,sun4i-a10", "allwinner,sun7i-a20", "allwinner,sun8i-h3", "allwinner,sun50i-a64", "allwinner,sun50i-h5";

	fragment@0 {
		target = <&pio>;
		__overlay__ {
			gpio_button_0: gpio_button_0 {
				pins = "PA20";
				function = "gpio_in";
				bias-pull-up;
			};
		};
	};
};

 

and I still have the same problem.

The snippet you posted compiles fine for me.

mmh maybe some missing dependencies or an old version? Which device tree compiler do you use?

Works on both my laptop (amd64) and my NanoPi M4V2 (arm64). Both are 1.5.1-1.

 

Perhaps you're not trying to compile the file you think you are.

I´m pretty sure that I try to compile the correct file. But my DTC is only version 1.4.2. Maybe thats the issue.

I can compile the fragment on my Raspberry Pi with DT 1.4.7, so there is definitely an issue with the version. How can I update the DTC on my OrangePi? Using apt doesn´t work, because I have the current version already.

1.5.1-1 is current as of Ubuntu Focal. Perhaps a version difference in Debian, or an outdated install?

 

The output of "armbianmonitor -u" might help.

vor 2 Stunden schrieb tparys:

1.5.1-1 is current as of Ubuntu Focal. Perhaps a version difference in Debian, or an outdated install?

 

The output of "armbianmonitor -u" might help.

mmh the command doesn´t output an URL.

Anyway I have downloaded DTC 1.4.7 and this version fixes the issue.