[PATCH 2/2] drm/i915: Do not advertize support for NV12 on ICL yet.

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ICL requires two planes for scanning out a NV12 framebuffer. Do
not advertize support for creating NV12 framebuffers until required
plane programming is implemented.

v2: Do not allow adding buffers.
    Check inside skl_plane_has_planar (Ville)

Bspec: Plane Planar YUV programming (18566)
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 7e18bd8b21b8..8e4e88eb10e4 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13622,6 +13622,13 @@ static bool skl_plane_has_fbc(struct drm_i915_private *dev_priv,
 bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
 			  enum pipe pipe, enum plane_id plane_id)
 {
+	/*
+	 * FIXME: ICL requires two hardware planes for scanning out NV12
+	 * framebuffers. Do not advertize support until this is implemented.
+	 */
+	if (INTEL_GEN(dev_priv) >= 11)
+		return false;
+
 	if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
 		return false;
 
@@ -14543,7 +14550,7 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
 		break;
 	case DRM_FORMAT_NV12:
 		if (INTEL_GEN(dev_priv) < 9 || IS_SKYLAKE(dev_priv) ||
-		    IS_BROXTON(dev_priv)) {
+		    IS_BROXTON(dev_priv) || INTEL_GEN(dev_priv) >= 11) {
 			DRM_DEBUG_KMS("unsupported pixel format: %s\n",
 				      drm_get_format_name(mode_cmd->pixel_format,
 							  &format_name));
-- 
2.17.1

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