From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Mon, 19 Feb 2018 22:28:46 +0200
Subject: drm/atomic: Include color encoding/range in plane state dump
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Git-commit: 56dbbaff0fc739c573ccd351028c49066e938363
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/drm_atomic.c        |    4 ++++
 drivers/gpu/drm/drm_color_mgmt.c    |   30 ++++++++++++++++++++++++++++++
 drivers/gpu/drm/drm_crtc_internal.h |    2 ++
 3 files changed, 36 insertions(+)

--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -954,6 +954,10 @@ static void drm_atomic_plane_print_state
 	drm_printf(p, "\tcrtc-pos=" DRM_RECT_FMT "\n", DRM_RECT_ARG(&dest));
 	drm_printf(p, "\tsrc-pos=" DRM_RECT_FP_FMT "\n", DRM_RECT_FP_ARG(&src));
 	drm_printf(p, "\trotation=%x\n", state->rotation);
+	drm_printf(p, "\tcolor-encoding=%s\n",
+		   drm_get_color_encoding_name(state->color_encoding));
+	drm_printf(p, "\tcolor-range=%s\n",
+		   drm_get_color_range_name(state->color_range));
 
 	if (plane->funcs->atomic_print_state)
 		plane->funcs->atomic_print_state(p, state);
--- 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_na
 };
 
 /**
+ * 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
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -71,6 +71,8 @@ int drm_mode_destroy_dumb_ioctl(struct d
 				void *data, struct drm_file *file_priv);
 
 /* drm_color_mgmt.c */
+const char *drm_get_color_encoding_name(enum drm_color_encoding encoding);
+const char *drm_get_color_range_name(enum drm_color_range range);
 
 /* IOCTLs */
 int drm_mode_gamma_get_ioctl(struct drm_device *dev,