Re: [PATCH 2/2] drm/i915: Enable RGB565 90/270 plane rotation for gen11 onwards.

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On Mon, Aug 27, 2018 at 03:37:53PM +0300, Juha-Pekka Heikkila wrote:
> From gen11 onwards RGB565 90/270 plane rotation is supported on hardware.
> 
> IGT: https://patchwork.freedesktop.org/series/48756/
> Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/intel_atomic_plane.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
> index 344a16b..c245906 100644
> --- a/drivers/gpu/drm/i915/intel_atomic_plane.c
> +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
> @@ -123,14 +123,17 @@ static bool intel_plane_valid_rotation(const struct drm_plane_state *plane_state
>  		}
>  
>  		/*
> -		 * 90/270 is not allowed with RGB64 16:16:16:16,
> -		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
> +		 * 90/270 is not allowed with RGB64 16:16:16:16 and
> +		 * Indexed 8-bit. RGB 16-bit. 5:6:5 is allowed gen11 onwards.
                                            ^
Extra period there

Otherwise lgtm
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

>  		 * TBD: Add RGB64 case once its added in supported format
>  		 * list.
>  		 */
>  		switch (plane_state->fb->format->format) {
> -		case DRM_FORMAT_C8:
>  		case DRM_FORMAT_RGB565:
> +			if (INTEL_GEN(dev_priv) >= 11)
> +				break;
> +			/* fall through */
> +		case DRM_FORMAT_C8:
>  			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
>  				      drm_get_format_name(plane_state->fb->format->format,
>  							  &format_name));
> -- 
> 2.7.4
> 
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
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-- 
Ville Syrjälä
Intel
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