drm/atomic: Include color encoding/range in plane state dump

Include color_enconding and color_range in the plane state dump.

v2: Add kerneldoc (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>
Cc: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180219202846.10628-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Harry Wentland <harry.wentland@amd.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c
index 4b83e078d3e9..4ff064623836 100644
--- a/drivers/gpu/drm/drm_color_mgmt.c
+++ b/drivers/gpu/drm/drm_color_mgmt.c
@@ -366,6 +366,36 @@ static const char * const color_range_name[] = {
 };
 
 /**
+ * drm_get_color_encoding_name - return a string for color encoding
+ * @encoding: color encoding to compute name of
+ *
+ * In contrast to the other drm_get_*_name functions this one here returns a
+ * const pointer and hence is threadsafe.
+ */
+const char *drm_get_color_encoding_name(enum drm_color_encoding encoding)
+{
+	if (WARN_ON(encoding >= ARRAY_SIZE(color_encoding_name)))
+		return "unknown";
+
+	return color_encoding_name[encoding];
+}
+
+/**
+ * drm_get_color_range_name - return a string for color range
+ * @range: color range to compute name of
+ *
+ * In contrast to the other drm_get_*_name functions this one here returns a
+ * const pointer and hence is threadsafe.
+ */
+const char *drm_get_color_range_name(enum drm_color_range range)
+{
+	if (WARN_ON(range >= ARRAY_SIZE(color_range_name)))
+		return "unknown";
+
+	return color_range_name[range];
+}
+
+/**
  * drm_plane_create_color_properties - color encoding related plane properties
  * @plane: plane object
  * @supported_encodings: bitfield indicating supported color encodings