On Thu, 2025-11-27 at 19:49 +0200, Imre Deak wrote:
> Factor out compute_min_compressed_bpp_x16() also used during mode
> validation in a follow-up change.
> 
> Signed-off-by: Imre Deak <[email protected]>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 26 +++++++++++++++++------
> --
>  1 file changed, 18 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c
> b/drivers/gpu/drm/i915/display/intel_dp.c
> index 193d9c2079347..2a5f5f1b4b128 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -2645,6 +2645,23 @@ dsc_throughput_quirk_max_bpp_x16(const struct
> intel_connector *connector,
>       return fxp_q4_from_int(12);
>  }
>  
> +static int compute_min_compressed_bpp_x16(struct intel_connector
> *connector,
> +                                       enum intel_output_format
> output_format)
> +{

Could be "const struct intel_connector". align_min_compressed_bpp_x16()
also takes const intel_connector

with that,

Reviewed-by: Vinod Govindapillai <[email protected]>

> +     int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
> +     int min_bpp_x16;
> +
> +     dsc_src_min_bpp = intel_dp_dsc_min_src_compressed_bpp();
> +     dsc_sink_min_bpp =
> intel_dp_dsc_sink_min_compressed_bpp(output_format);
> +     dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
> +
> +     min_bpp_x16 = fxp_q4_from_int(dsc_min_bpp);
> +
> +     min_bpp_x16 = align_min_compressed_bpp_x16(connector,
> min_bpp_x16);
> +
> +     return min_bpp_x16;
> +}
> +
>  /*
>   * Calculate the output link min, max bpp values in limits based on
> the pipe bpp
>   * range, crtc_state and dsc mode. Return true on success.
> @@ -2674,18 +2691,11 @@
> intel_dp_compute_config_link_bpp_limits(struct intel_connector
> *connector,
>  
>               limits->link.min_bpp_x16 = fxp_q4_from_int(limits-
> >pipe.min_bpp);
>       } else {
> -             int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
>               int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
>               int throughput_max_bpp_x16;
>               int joiner_max_bpp;
> -
> -             dsc_src_min_bpp =
> intel_dp_dsc_min_src_compressed_bpp();
> -             dsc_sink_min_bpp =
> intel_dp_dsc_sink_min_compressed_bpp(crtc_state->output_format);
> -             dsc_min_bpp = max(dsc_src_min_bpp,
> dsc_sink_min_bpp);
> -             limits->link.min_bpp_x16 =
> fxp_q4_from_int(dsc_min_bpp);
> -
>               limits->link.min_bpp_x16 =
> -                     align_min_compressed_bpp_x16(connector,
> limits->link.min_bpp_x16);
> +                     compute_min_compressed_bpp_x16(connector,
> crtc_state->output_format);
>  
>               dsc_src_max_bpp =
> dsc_src_max_compressed_bpp(intel_dp);
>               joiner_max_bpp =

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