RE: [PATCH V2 3/3] dt-bindings: serial: fsl-lpuart: add imx8ulp compatible string

[Sherry Sun]

> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Sent: 2023年6月26日 23:47
> To: Sherry Sun <sherry.sun@xxxxxxx>; robh+dt@xxxxxxxxxx;
> krzysztof.kozlowski+dt@xxxxxxxxxx; conor+dt@xxxxxxxxxx;
> shawnguo@xxxxxxxxxx; s.hauer@xxxxxxxxxxxxxx; festevam@xxxxxxxxx;
> Shenwei Wang <shenwei.wang@xxxxxxx>; gregkh@xxxxxxxxxxxxxxxxxxx
> Cc: devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
> kernel@xxxxxxxxxxxxxx; linux-serial@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; dl-linux-imx <linux-imx@xxxxxxx>
> Subject: Re: [PATCH V2 3/3] dt-bindings: serial: fsl-lpuart: add imx8ulp
> compatible string
> 
> On 26/06/2023 06:48, Sherry Sun wrote:
> > Add imx8ulp compatible string in lpuart dt-binding, also correct the
> > imx93 compatible here, imx93/imx8ulp add some new features based on
> > imx7ulp lpuart, so need to add "fsl,imx8ulp-lpuart" for imx93 to
> > enable those new features.
> >
> > Signed-off-by: Sherry Sun <sherry.sun@xxxxxxx>
> > ---
> >  Documentation/devicetree/bindings/serial/fsl-lpuart.yaml | 9
> > ++++++---
> >  1 file changed, 6 insertions(+), 3 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
> > b/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
> > index 93062403276b..272bfbb1cdfc 100644
> > --- a/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
> > +++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
> > @@ -21,12 +21,15 @@ properties:
> >            - fsl,ls1021a-lpuart
> >            - fsl,ls1028a-lpuart
> >            - fsl,imx7ulp-lpuart
> > +          - fsl,imx8ulp-lpuart
> 
> I don't understand this. Commit msg also does not explain this.

Hi Krzysztof,
Thanks for the catch, seems this is not needed as we have the below 8ulp+7ulp entry for this, will remove it in V3.

> 
> >            - fsl,imx8qxp-lpuart
> >            - fsl,imxrt1050-lpuart
> >        - items:
> > -          - enum:
> > -              - fsl,imx93-lpuart
> > -              - fsl,imx8ulp-lpuart
> 
> This could have stayed as enum with one entry which would make your diff
> more readable.
> 
> > +          - const: fsl,imx8ulp-lpuart
> > +          - const: fsl,imx7ulp-lpuart
> 
Sure, will change it to enum, thanks.

Best Regards
Sherry