[Intel-gfx] [PATCH 14/16] drm/i915: Add NV12 as supported format for sprite plane

[Vidya Srinivas]

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

This patch adds NV12 to list of supported formats for sprite plane.

v2: Rebased (me)

v3: Review comments by Ville addressed
- Removed skl_plane_formats_with_nv12 and added
NV12 case in existing skl_plane_formats
- Added the 10bpc RGB formats

v4: Addressed review comments from Clinton A Taylor
"Why are we adding 10 bit RGB formats with the NV12 series patches?
Trying to set XR30 or AB30 results in error returned even though
the modes are advertised for the planes"
- Removed 10bit RGB formats added previously with NV12 series

v5: Missed the Tested-by/Reviewed-by in the previous series
Adding the same to commit message in this version.
Addressed review comments from Clinton A Taylor
"Why are we adding 10 bit RGB formats with the NV12 series patches?
Trying to set XR30 or AB30 results in error returned even though
the modes are advertised for the planes"
- Previous version has 10bit RGB format removed from VLV formats
by mistake. Fixing that in this version.
Removed 10bit RGB formats added previously with NV12 series
for SKL.

v6: Addressed review comments by Ville
Restricting the NV12 to BXT and PIPE A and B

v7: Rebased (me)

v8: Rebased (me)
Restricting NV12 changes to BXT and KBL
Restricting NV12 changes for plane 0 (overlay)

v9: Rebased (me)

v10: Addressed review comments from Maarten.
Adding NV12 to skl_plane_formats itself.

v11: Addressed review comments from Shashank Sharma

v12: Addressed review comments from Shashank Sharma
Made the condition in intel_sprite_plane_create
simple and easy to read as suggested.

Tested-by: Clinton Taylor <clinton.a.taylor at intel.com>
Reviewed-by: Clinton Taylor <clinton.a.taylor 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_sprite.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 77a5433..20e23e5 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1171,6 +1171,7 @@ static uint32_t skl_plane_formats[] = {
 	DRM_FORMAT_YVYU,
 	DRM_FORMAT_UYVY,
 	DRM_FORMAT_VYUY,
+	DRM_FORMAT_NV12,
 };
 
 static const uint64_t skl_plane_format_modifiers_noccs[] = {
@@ -1369,6 +1370,14 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 		plane_formats = skl_plane_formats;
 		num_plane_formats = ARRAY_SIZE(skl_plane_formats);
 
+		if (IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) == 10) {
+			if (plane != 0)
+				num_plane_formats -= 1;
+		} else {
+			if (plane != 0 || pipe != PIPE_C)
+				num_plane_formats -= 1;
+		}
+
 		if (skl_plane_has_ccs(dev_priv, pipe, PLANE_SPRITE0 + plane))
 			modifiers = skl_plane_format_modifiers_ccs;
 		else
-- 
2.7.4