On Sat, Mar 30, 2019 at 10:26:53PM -0400, Brian Masney wrote:
> I'm finishing up a patch series that adds device tree support for a
> backlight driver and I made the bindings use the new JSON schema. I'm
> running into a problem with the reg property in the examples and I can
> reproduce the issue by adding an example to the trivial bindings:
>
> diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml
> b/Documentation/devicetree/bindings/trivial-devices.yaml
> index d79fb22bde39..bdab6a015db4 100644
> --- a/Documentation/devicetree/bindings/trivial-devices.yaml
> +++ b/Documentation/devicetree/bindings/trivial-devices.yaml
> @@ -341,4 +341,10 @@ required:
> - compatible
> - reg
>
> +examples:
> + - |
> + isl29028@38 {
> + compatible = "isil,isl29028";
> + reg = <0x38>;
> + };
> ...
>
> 'make dt_binding_check' fails with the following error:
>
> Documentation/devicetree/bindings/trivial-devices.example.dts:11.5-18:
> Warning (reg_format): /isl29028@38:reg: property has invalid length
> (4 bytes) (#address-cells == 1, #size-cells == 1)
> ...
> Documentation/devicetree/bindings/trivial-devices.example.dtb:
> Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
I make the check happy by including an i2c node in my example.
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
isl29028@38 {
compatible = "isil,isl29028";
reg = <0x38>;
};
};
Sorry about the noise.
Brian
