[Intel-gfx] [PATCH 2/2] drm/i915: Add debugs for the C8 vs. legacy LUT case

[Maarten Lankhorst]

Op 13-05-2019 om 15:39 schreef Ville Syrjala:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Leave a hint in dmesg when we reject a configuration attempting
> to use C8 planes without the legacy LUT loaded.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_color.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
> index 962db1236970..45649904ba5c 100644
> --- a/drivers/gpu/drm/i915/intel_color.c
> +++ b/drivers/gpu/drm/i915/intel_color.c
> @@ -959,8 +959,10 @@ static int check_luts(const struct intel_crtc_state *crtc_state)
>  		return 0;
>  
>  	/* C8 relies on its palette being stored in the legacy LUT */
> -	if (crtc_state->c8_planes)
> +	if (crtc_state->c8_planes) {
> +		DRM_DEBUG_KMS("C8 pixelformat requires the legacy LUT\n");
>  		return -EINVAL;
> +	}
>  
>  	degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size;
>  	gamma_length = INTEL_INFO(dev_priv)->color.gamma_lut_size;

For the series:

Reviewed-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>