[PATCH v2 10/12] drm/i915/dp: Export intel_dp_dsc_min_src_compressed_bpp()

[Nautiyal, Ankit K]

On 4/28/2025 7:01 PM, Imre Deak wrote:
> Export the function that can be used by a follow-up change to query the
> minimum compressed link bpp supported by the HW.
>
> Signed-off-by: Imre Deak <imre.deak at intel.com>

LGTM.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>

> ---
>   drivers/gpu/drm/i915/display/intel_dp.c | 4 ++--
>   drivers/gpu/drm/i915/display/intel_dp.h | 1 +
>   2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 73ca9f8efefc5..047473e3f6e6a 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -2070,7 +2070,7 @@ int intel_dp_dsc_sink_max_compressed_bpp(const struct intel_connector *connector
>   						       pipe_config, bpc) >> 4;
>   }
>   
> -static int dsc_src_min_compressed_bpp(void)
> +int intel_dp_dsc_min_src_compressed_bpp(void)
>   {
>   	/* Min Compressed bpp supported by source is 8 */
>   	return 8;
> @@ -2481,7 +2481,7 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
>   		int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
>   		int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
>   
> -		dsc_src_min_bpp = dsc_src_min_compressed_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);
>   		dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
>   		limits->link.min_bpp_x16 = fxp_q4_from_int(dsc_min_bpp);
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> index 3206c86adaba6..f883fc0b65c06 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -208,5 +208,6 @@ bool intel_dp_has_connector(struct intel_dp *intel_dp,
>   			    const struct drm_connector_state *conn_state);
>   int intel_dp_dsc_max_src_input_bpc(struct intel_display *display);
>   int intel_dp_dsc_min_src_input_bpc(void);
> +int intel_dp_dsc_min_src_compressed_bpp(void);
>   
>   #endif /* __INTEL_DP_H__ */