Re: [PATCH v2 2/6] dt-bindings: pwm: amlogic: add new compatible for meson8 pwm type

[Neil Armstrong <neil.armstrong@linaro.org>]

Hi Rob,

On 19/11/2023 17:05, Rob Herring wrote:
> 
> On Fri, 17 Nov 2023 13:59:12 +0100, Jerome Brunet wrote:
>> Add a new compatible for the pwm found in the meson8 to sm1 Amlogic SoCs.
>>
>> The previous clock bindings for these SoCs described the driver and not the
>> HW itself. The clock provided was used to set the parent of the input clock
>> mux among the possible parents hard-coded in the driver.
>>
>> The new bindings allows to describe the actual clock inputs of the PWM in
>> DT, like most bindings do, instead of relying of hard-coded data.
>>
>> The new bindings make the old one deprecated.
>>
>> There is enough experience on this HW to know that the PWM is exactly the
>> same all the supported SoCs. There is no need for a per-SoC compatible.
>>
>> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
>> ---
>>   .../devicetree/bindings/pwm/pwm-amlogic.yaml  | 36 +++++++++++++++++--
>>   1 file changed, 34 insertions(+), 2 deletions(-)
>>
> 
> Reviewed-by: Rob Herring <robh@kernel.org>
> 

I'm puzzled, isn't it recommended to have a per-soc compatible now ?

I thought something like:
- items:
     - enum:
         - amlogic,gxbb-pwm
         - amlogic,axg-pwm
         - amlogic,g12a-pwm
     - const: amlogic,pwm-v1

should be preferred instead of a single amlogic,meson8-pwm-v2 ?

Neil