[Intel-gfx] [PATCH v3 39/48] drm/i915/bigjoiner: Mode validation with uncompressed pipe joiner

[Navare, Manasi]

On Fri, May 07, 2021 at 07:28:11PM -0700, Matt Roper wrote:
> From: Animesh Manna <animesh.manna at intel.com>
> 
> No need for checking dsc flag for uncompressed pipe joiner mode
> validation.
> 
> Cc: Manasi Navare <manasi.d.navare at intel.com>
> Signed-off-by: Animesh Manna <animesh.manna at intel.com>
> Signed-off-by: Clinton Taylor <Clinton.A.Taylor at intel.com>
> Signed-off-by: Matt Roper <matthew.d.roper at intel.com>

Reviewed-by: Manasi Navare <manasi.d.navare at intel.com>

Manasi

> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index b9b8a0b9889a..92d4c5ab32d7 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -819,8 +819,11 @@ intel_dp_mode_valid(struct drm_connector *connector,
>  		dsc = dsc_max_output_bpp && dsc_slice_count;
>  	}
>  
> -	/* big joiner configuration needs DSC */
> -	if (bigjoiner && !dsc)
> +	/*
> +	 * Big joiner configuration needs DSC for TGL which is not true for
> +	 * XE_LPD where uncompressed joiner is supported.
> +	 */
> +	if (DISPLAY_VER(dev_priv) < 13 && bigjoiner && !dsc)
>  		return MODE_CLOCK_HIGH;
>  
>  	if (mode_rate > max_rate && !dsc)
> -- 
> 2.25.4
>