[Intel-gfx] [PATCH] drm/i915/glk: RGB565 planes now allow 90/270 rotation

[Ville Syrjälä]

On Wed, Jun 07, 2017 at 10:45:25AM -0700, clinton.a.taylor at intel.com wrote:
> From: Clint Taylor <clinton.a.taylor at intel.com>
> 
> RGB565 Pixel format planes can now be rotated at 90 and 270 degrees

"now" == since when?

> 
> Signed-off-by: Clint Taylor <clinton.a.taylor at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_atomic_plane.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
> index 4325cb0..9a7a7ea 100644
> --- a/drivers/gpu/drm/i915/intel_atomic_plane.c
> +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
> @@ -144,19 +144,16 @@ int intel_plane_atomic_check_with_state(struct intel_crtc_state *crtc_state,
>  
>  		/*
>  		 * 90/270 is not allowed with RGB64 16:16:16:16,
> -		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
> +		 * RGB 16-bit 5:6:5 (prior to gen 9 LP), and Indexed 8-bit.
>  		 * TBD: Add RGB64 case once its added in supported format list.
>  		 */
> -		switch (state->fb->format->format) {
> -		case DRM_FORMAT_C8:
> -		case DRM_FORMAT_RGB565:
> +		if ((state->fb->format->format == DRM_FORMAT_C8) ||
> +		    (state->fb->format->format == DRM_FORMAT_RGB565 &&
> +		     !IS_GEN9_LP(dev_priv) )) {

I don't think BXT can do that.

>  			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
>  			              drm_get_format_name(state->fb->format->format,
>  			                                  &format_name));
>  			return -EINVAL;
> -
> -		default:
> -			break;
>  		}
>  	}
>  
> -- 
> 1.9.1
> 
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-- 
Ville Syrjälä
Intel OTC