Re: [PATCH v3 2/2] reset: mchp: sparx5: Extend support for lan966x

[Philipp Zabel]

On Thu, 2021-10-14 at 17:40 +0200, Horatiu Vultur wrote:
> 
> > > +      */
> > > +     err = mchp_sparx5_map_syscon(pdev, "cuphy-syscon", &ctx->cuphy_ctrl);
> > > +     if (err && err != -ENODEV)
> > > +             return err;
> > 
> > So -ENODEV should return an error if .cuphy_reg is set?
> 
> I am not sure I follow this.
> If cuphy-syscon is not set then mchp_sparx5_map_syscon will return
> -ENODEV. This can be ignored for sparx5 as this is not required.
> If cuphy-syscon is set then if mchp_sparx5_map_syscon returns an error
> then report this error.

My point was that in case of cuphy-syscon missing from the DT, the
lan966x compatible reset controller should probably throw the error
instead of ignoring it. With v4 this is not relevant any more.

regards
Philipp