On 21/06/2023 00:09, Yixun Lan wrote:
>> + apb4: bus@fe000000 {
>> + compatible = "simple-bus";
>> + reg = <0x0 0xfe000000 0x0 0x480000>;
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>> + ranges = <0x0 0x0 0x0 0xfe000000 0x0 0x480000>;
>> +
>> + uart_A: serial@78000 {
>> + compatible = "amlogic,meson-t7-uart",
> ~~~~~~~~~~~~~~~~~
> if you introduce new compatible string, then at least you need to document it
> so Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml need to be updated
>
> but my qeustion here, why bother introducing new compatible string if nothing
> changed with the compatible data? given the uart is same IP with g12a, can't we just
> use "amlogic,meson-g12-uart" for this? no only it will reduce the structure length of
> meson_uart_dt_match[], but also relieve maintainer's review burden?
https://elixir.bootlin.com/linux/v6.1-rc1/source/Documentation/devicetree/bindings/writing-bindings.rst#L42
Best regards,
Krzysztof
