[PATCH 13/18] drm/i915: Add NV12 as supported format for primary plane

[Vidya Srinivas]

From: Chandra Konduru <chandra.konduru at intel.com>

This patch adds NV12 to list of supported formats for
primary plane

v2: Rebased (Chandra Konduru)

v3: Rebased (me)

v4: Review comments by Ville addressed
Removed the skl_primary_formats_with_nv12 and
added NV12 case in existing skl_primary_formats

v5: Rebased (me)

v6: Missed the Tested-by/Reviewed-by in the previous series
Adding the same to commit message in this version.

v7: Review comments by Ville addressed
	Restricting the NV12 for BXT and on PIPE A and B
Rebased (me)

v8: Rebased (me)
Modified restricting the NV12 support for both BXT and KBL.

v9: Rebased (me)

v10: Addressed review comments from Maarten.
	Adding NV12 inside skl_primary_formats itself.

v11: Adding Reviewed By tag from Shashank Sharma

v12: Addressed review comments from Juha-Pekka Heikkila
"NV12 not to be supported by SKL"

Tested-by: Clinton Taylor <clinton.a.taylor at intel.com>
Reviewed-by: Clinton Taylor <clinton.a.taylor at intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma at intel.com>
Signed-off-by: Chandra Konduru <chandra.konduru at intel.com>
Signed-off-by: Nabendu Maiti <nabendu.bikash.maiti at intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas at intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a959f11..74a4da3 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -86,6 +86,7 @@ static const uint32_t skl_primary_formats[] = {
 	DRM_FORMAT_YVYU,
 	DRM_FORMAT_UYVY,
 	DRM_FORMAT_VYUY,
+	DRM_FORMAT_NV12,
 };
 
 static const uint64_t skl_format_modifiers_noccs[] = {
@@ -13337,6 +13338,13 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 		intel_primary_formats = skl_primary_formats;
 		num_formats = ARRAY_SIZE(skl_primary_formats);
 
+		if (IS_SKYLAKE(dev_priv))
+			num_formats -= 1;
+
+		else if ((INTEL_GEN(dev_priv) == 9 && pipe == PIPE_C) &&
+		    !IS_GEMINILAKE(dev_priv))
+			num_formats -= 1;
+
 		if (skl_plane_has_ccs(dev_priv, pipe, PLANE_PRIMARY))
 			modifiers = skl_format_modifiers_ccs;
 		else
-- 
2.7.4