[Intel-gfx] [PATCH] drm/i915: add a note about fec_enable with 128b/132b

[Ville Syrjälä]

On Wed, Sep 20, 2023 at 02:29:01PM +0300, Jani Nikula wrote:
> Add a note that fec_enable actually means FEC is to be enabled
> explicitly. 128b/132b always has FEC enabled, the driver doesn't need to
> enable it separately, and fec_enable will be false.
> 
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>

Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_display_types.h | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 3c54fe2bfddd..f781a9755a52 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -1364,7 +1364,12 @@ struct intel_crtc_state {
>  
>  	bool enhanced_framing;
>  
> -	/* Forward Error correction State */
> +	/*
> +	 * Forward Error Correction.
> +	 *
> +	 * Note: This will be false for 128b/132b, which will always have FEC
> +	 * enabled automatically.
> +	 */
>  	bool fec_enable;
>  
>  	bool sdp_split_enable;
> -- 
> 2.39.2

-- 
Ville Syrjälä
Intel