drm: Add optional COLOR_ENCODING and COLOR_RANGE properties to drm_plane

Add a standard optional properties to support different non RGB color
encodings in DRM planes. COLOR_ENCODING select the supported non RGB
color encoding, for instance ITU-R BT.709 YCbCr. COLOR_RANGE selects
the value ranges within the selected color encoding. The properties
are stored to drm_plane object to allow different set of supported
encoding for different planes on the device.

v2: Add/fix kerneldocs, verify bitmasks (danvet)

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
[vsyrjala v2: Add/fix kerneldocs, verify bitmasks]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180219202823.10508-1-ville.syrjala@linux.intel.com
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 32 insertions, 0 deletions

diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 8185e3468a23..f7bf4a48b1c3 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -26,6 +26,7 @@
 #include <linux/list.h>
 #include <linux/ctype.h>
 #include <drm/drm_mode_object.h>
+#include <drm/drm_color_mgmt.h>
 
 struct drm_crtc;
 struct drm_printer;
@@ -112,6 +113,20 @@ struct drm_plane_state {
 	unsigned int zpos;
 	unsigned int normalized_zpos;
 
+	/**
+	 * @color_encoding:
+	 *
+	 * Color encoding for non RGB formats
+	 */
+	enum drm_color_encoding color_encoding;
+
+	/**
+	 * @color_range:
+	 *
+	 * Color range for non RGB formats
+	 */
+	enum drm_color_range color_range;
+
 	/* Clipped coordinates */
 	struct drm_rect src, dst;
 
@@ -558,6 +573,23 @@ struct drm_plane {
 
 	struct drm_property *zpos_property;
 	struct drm_property *rotation_property;
+
+	/**
+	 * @color_encoding_property:
+	 *
+	 * Optional "COLOR_ENCODING" enum property for specifying
+	 * color encoding for non RGB formats.
+	 * See drm_plane_create_color_properties().
+	 */
+	struct drm_property *color_encoding_property;
+	/**
+	 * @color_range_property:
+	 *
+	 * Optional "COLOR_RANGE" enum property for specifying
+	 * color range for non RGB formats.
+	 * See drm_plane_create_color_properties().
+	 */
+	struct drm_property *color_range_property;
 };
 
 #define obj_to_plane(x) container_of(x, struct drm_plane, base)