RESOLVED: a64 (pine64) dt bindings for cir?

[Learnincurve]

Hi,

 

  Thank you all for so much work to fully implement the mainline kernel for the Pine64!

 

So much is now working out-of-the-box with armbian, that there is no need to use the legacy version based on kernel 3.10.

 

The pine64 does have CIR capabilities and the sunxi-cir kernel module is available, but we are still missing DT bindings for the device, although I see that an overlay file is present for the h5:

/dts-v1/;

/ {
        compatible = "allwinner,sun50i-h5";

        fragment@0 {
                target = <0xffffffff>;

                __overlay__ {
                        pinctrl-names = "default";
                        pinctrl-0 = <0xffffffff>;
                        status = "okay";
                };
        };

        __fixups__ {
                ir = "/fragment@0:target:0";
                r_ir_rx_pin = "/fragment@0/__overlay__:pinctrl-0:0";
        };
};
/tmp/sun50i-h5-cir.dtbs (END) 

   

 

I would be very happy to try to implement and test this, if anyone can suggest changes to the overlay code, to shoehorn it into the pine64-plus DT. 

 

Update:

I did try the obvious, simple approach of changing the compatible line to compatible = "allwinner,sun50i-a64"

, recompiling and changing the filename to

/boot/overlay-user/sun50i-a64-pine64-cir.dtbo

 

but this looks like it messes up the official 7 inch lcd overlay (blank screen) that otherwise loads fine. So looks like it needs more changes.

 

Many thanks in advance for any suggestions!

 

BR.

 

[Learnincurve]

I found the solution at 

I was expecting this to be called "cir something", but the device is already listed in the device tree as ir@1f02000. 

I did a

sudo fdtput -t s /boot/dtb/allwinner/sun50i-a64-pine64-plus.dtb /soc/ir@1f02000 status okay

and rebooted. Device now shows up as /dev/input/event2

 

Now all I need is to find some codes that can be used with it.