[PATCH v6 13/17] drm/vkms: Add range and encoding properties to the plane

[Louis Chauvet <louis.chauvet@xxxxxxxxxxx>]

From: Arthur Grillo <arthurgrillo@xxxxxxxxxx>

Now that the driver internally handles these quantization ranges and YUV
encoding matrices, expose the UAPI for setting them.

Signed-off-by: Arthur Grillo <arthurgrillo@xxxxxxxxxx>
[Louis Chauvet: retained only relevant parts, updated the commit message]
Signed-off-by: Louis Chauvet <louis.chauvet@xxxxxxxxxxx>
---
 drivers/gpu/drm/vkms/vkms_formats.c | 2 +-
 drivers/gpu/drm/vkms/vkms_plane.c   | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c
index 2d7445a3de93..a294744d29d6 100644
--- a/drivers/gpu/drm/vkms/vkms_formats.c
+++ b/drivers/gpu/drm/vkms/vkms_formats.c
@@ -238,7 +238,7 @@ static struct pixel_argb_u16 argb_u16_from_RGB565(const u16 *pixel)
 static struct pixel_argb_u16 argb_u16_from_yuv888(u8 y, u8 channel_1, u8 channel_2,
 						  const struct conversion_matrix *matrix)
 {
-	u8 r, g, b;
+	u16 r, g, b;
 	s64 fp_y, fp_channel_1, fp_channel_2;
 	s64 fp_r, fp_g, fp_b;
 
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index d4e375913122..8f764a108b00 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -218,5 +218,14 @@ struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev,
 	drm_plane_create_rotation_property(&plane->base, DRM_MODE_ROTATE_0,
 					   DRM_MODE_ROTATE_MASK | DRM_MODE_REFLECT_MASK);
 
+	drm_plane_create_color_properties(&plane->base,
+					  BIT(DRM_COLOR_YCBCR_BT601) |
+					  BIT(DRM_COLOR_YCBCR_BT709) |
+					  BIT(DRM_COLOR_YCBCR_BT2020),
+					  BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
+					  BIT(DRM_COLOR_YCBCR_FULL_RANGE),
+					  DRM_COLOR_YCBCR_BT601,
+					  DRM_COLOR_YCBCR_FULL_RANGE);
+
 	return plane;
 }

-- 
2.43.0