[RESEND v22 1/3] dt-bindings: pwm: opencores: Update compatibles, examples and maintainers

[Changhuang Liang <changhuang.liang@starfivetech.com>]

Hello Conor,

Sorry to bother you. I discussed it with Hal, and I will pick up this series
later to add PWM support for JHB100.

> Remove the jh8100 compatible since the JH8100 SoC has been canceled and
> will not be released. Add the jhb100 compatible to replace it.
>
> Change the register size in examples to 0x10, since an OpenCores PTC IP
> has only 4 32-bit registers: CNTR, HRC, LRC and CTRL.
>
> I will maintain this pwm module in place of William.
>
> Acked-by: Conor Dooley <conor.dooley@microchip.com>
> Fixes: 2529085831b0 ("dt-bindings: pwm: Add bindings for OpenCores PWM Controller")
> Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
> ---
>  Documentation/devicetree/bindings/pwm/opencores,pwm.yaml | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/pwm/opencores,pwm.yaml b/Documentation/devicetree/bindings/pwm/opencores,pwm.yaml
> index 52a59d245cdb..42c5d2b6326d 100644
> --- a/Documentation/devicetree/bindings/pwm/opencores,pwm.yaml
> +++ b/Documentation/devicetree/bindings/pwm/opencores,pwm.yaml
> @@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
>  title: OpenCores PWM controller
>
>  maintainers:
> -  - William Qiu <william.qiu@starfivetech.com>
> +  - Hal Feng <hal.feng@starfivetech.com>
>
>  description:
>    The OpenCores PTC ip core contains a PWM controller. When operating in PWM
> @@ -23,7 +23,7 @@ properties:
>        - enum:
>            - starfive,jh7100-pwm
>            - starfive,jh7110-pwm
> -          - starfive,jh8100-pwm
> +          - starfive,jhb100-pwm
>        - const: opencores,pwm-v1
>

Compared with the JH7110 PWM, the JHB100 PWM has been modified. The JH7110 PWM
is inverted polarity by default, which is consistent with the design of
opencores,pwm-v1, but the JHB100 PWM has been modified to normal polarity,
so it no longer conforms to the design of opencores,pwm-v1. Therefore, I plan
to revise the binding here again:

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - starfive,jh7100-pwm
              - starfive,jh7110-pwm
          - const: opencores,pwm-v1
      - const: starfive,jhb100-pwm

Do you think this makes sense?

>    reg:
> @@ -49,7 +49,7 @@ examples:
>    - |
>      pwm@12490000 {
>          compatible = "starfive,jh7110-pwm", "opencores,pwm-v1";
> -        reg = <0x12490000 0x10000>;
> +        reg = <0x12490000 0x10>;
>          clocks = <&clkgen 181>;
>          resets = <&rstgen 109>;
>          #pwm-cells = <3>;
> --

Best Regards,
Changhuang