[PATCH 14/22] drm/i915/mst: Reject FEC+MST on ICL

[Shankar, Uma]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Ville
> Syrjala
> Sent: Friday, March 29, 2024 6:43 AM
> To: intel-gfx at lists.freedesktop.org
> Subject: [PATCH 14/22] drm/i915/mst: Reject FEC+MST on ICL
> 
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> ICL supposedly doesn't support FEC on MST. Reject it.

Looks Good to me.
Reviewed-by: Uma Shankar <uma.shankar at intel.com>

> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c
> b/drivers/gpu/drm/i915/display/intel_dp.c
> index cbabd1924474..8b8059b6bb21 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -1415,7 +1415,8 @@ static bool intel_dp_source_supports_fec(struct
> intel_dp *intel_dp,
>  	if (DISPLAY_VER(dev_priv) >= 12)
>  		return true;
> 
> -	if (DISPLAY_VER(dev_priv) == 11 && encoder->port != PORT_A)
> +	if (DISPLAY_VER(dev_priv) == 11 && encoder->port != PORT_A &&
> +	    !intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DP_MST))
>  		return true;
> 
>  	return false;
> --
> 2.43.2