Re: [PATCH v2 4/5] drm/msm/dp: Store each subblock in the io region

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Quoting Bjorn Andersson (2021-08-25 15:25:56)
> Not all platforms has DP_P0 at offset 0x1000 from the beginning of the
> DP block. So split the dss_io_data memory region into a set of
> sub-regions, to make it possible in the next patch to specify each of
> the sub-regions individually.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> ---

One nit below:

Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>


>
> diff --git a/drivers/gpu/drm/msm/dp/dp_parser.h b/drivers/gpu/drm/msm/dp/dp_parser.h
> index dc62e70b1640..a95b05dbb11c 100644
> --- a/drivers/gpu/drm/msm/dp/dp_parser.h
> +++ b/drivers/gpu/drm/msm/dp/dp_parser.h
> @@ -25,9 +25,16 @@ enum dp_pm_type {
>         DP_MAX_PM
>  };
>
> -struct dss_io_data {
> -       size_t len;
> +struct dss_io_region {
>         void __iomem *base;
> +       size_t len;

It flip flops here. Would be nice to the diff if len was where it really
wanted to be.

> +};
> +
> +struct dss_io_data {
> +       struct dss_io_region ahb;
> +       struct dss_io_region aux;
> +       struct dss_io_region link;
> +       struct dss_io_region p0;
>  };



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