[PATCH V3 3/6] dt-bindings: serial: meson: Support S4 SoC uart. Also Drop compatible = amlogic,meson-gx-uart.

[Martin Blumenstingl]

Hello,

as Greg already mentioned the $subject line is very long.

On Thu, Dec 30, 2021 at 11:21 AM Yu Tu <yu.tu at amlogic.com> wrote:
> Deprecated, don't use anymore because compatible = amlogic,meson-gx-uart
> don't differentiate between GXBB and GXL which have different
> revisions of the UART IP. So it's split into GXBB and GXL.
actually it's split into GXBB, GXL and G12A

[...]
> -              - amlogic,meson-gx-uart
> +              - amlogic,meson-gxbb-uart
> +              - amlogic,meson-gxl-uart
> +              - amlogic,meson-g12a-uart
> +              - amlogic,meson-s4-uart
In addition to Greg's comment I suggest splitting this into two patches:
- one where the "amlogic,meson-gx-uart" compatible is marked as
deprecated (Documentation/devicetree/bindings/power/supply/bq27xxx.yaml
has an example for deprecated entries) and GXBB, GXL and G12A
compatible strings are added instead
- another one where the new S4 compatible string is added

The idea here is to have "one logical change per patch".
Deprecating and replacing "amlogic,meson-gx-uart" is one logical change.
Adding a new compatible string is another logical change.
I am hoping that this will also make it easier to find a shorter
$subject line (which according to the patch submission guide [0]
should be 70-75 characters: "the summary must be no more than 70-75
characters")


Best regards,
Martin


[0] https://www.kernel.org/doc/html/v4.17/process/submitting-patches.html#the-canonical-patch-format