Commit f2a7b9cd authored by Vinod Govindapillai's avatar Vinod Govindapillai Committed by Ville Syrjälä
Browse files

drm/i915/lnl: update the supported plane formats with FBC 



FBC is supported with RGB32 8:8:8:8 with or without alpha

Bspec: 68904, 69560
Signed-off-by: default avatarVinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230922133003.150578-3-vinod.govindapillai@intel.com
parent de1ee4e4

drivers/gpu/drm/i915/display/intel_fbc.c

+7 −1
Original line number Diff line number Diff line
@@ -903,6 +903,11 @@ static bool pixel_format_is_valid(const struct intel_plane_state *plane_state) 
		if (IS_G4X(i915))

			return false;

		return true;

	case DRM_FORMAT_ARGB8888:

	case DRM_FORMAT_ABGR8888:

		if (DISPLAY_VER(i915) >= 20)

			return true;

		fallthrough;

	default:

		return false;

	}
@@ -1132,7 +1137,8 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state, 
		return 0;

	}



	if (plane_state->hw.pixel_blend_mode != DRM_MODE_BLEND_PIXEL_NONE &&

	if (DISPLAY_VER(i915) < 20 &&

	    plane_state->hw.pixel_blend_mode != DRM_MODE_BLEND_PIXEL_NONE &&

	    fb->format->has_alpha) {

		plane_state->no_fbc_reason = "per-pixel alpha not supported";

		return 0;