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authorHarry Wentland <harry.wentland@amd.com>2022-12-01 00:11:30 +0300
committerAlex Deucher <alexander.deucher@amd.com>2023-06-09 19:46:41 +0300
commit035d53e0f36da6ce49abf7bea3d9b30a075ff247 (patch)
tree76c6a7c84a13ccd8485cd1d00edb036c8e177fdc /drivers/gpu/drm/drm_connector.c
parentc627087cb164d1675323c7942fa29bded4263dfc (diff)
downloadlinux-035d53e0f36da6ce49abf7bea3d9b30a075ff247.tar.xz
drm/connector: Print connector colorspace in state debugfs
v3: Fix kerneldocs (kernel test robot) v4: Avoid returning NULL from drm_get_colorspace_name Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com> Reviewed-by: Joshua Ashton <joshua@froggi.es> Reviewed-by: Simon Ser <contact@emersion.fr> Cc: Pekka Paalanen <ppaalanen@gmail.com> Cc: Sebastian Wick <sebastian.wick@redhat.com> Cc: Vitaly.Prosyak@amd.com Cc: Uma Shankar <uma.shankar@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Joshua Ashton <joshua@froggi.es> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Simon Ser <contact@emersion.fr> Cc: Melissa Wen <mwen@igalia.com> Cc: dri-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/drm_connector.c')
-rw-r--r--drivers/gpu/drm/drm_connector.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index b823b10ed697..e1d7a40e1776 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1087,6 +1087,21 @@ static const char * const colorspace_names[] = {
[DRM_MODE_COLORIMETRY_BT601_YCC] = "BT601_YCC",
};
+/**
+ * drm_get_colorspace_name - return a string for color encoding
+ * @colorspace: color space 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_colorspace_name(enum drm_colorspace colorspace)
+{
+ if (colorspace < ARRAY_SIZE(colorspace_names) && colorspace_names[colorspace])
+ return colorspace_names[colorspace];
+ else
+ return "(null)";
+}
+
static const u32 hdmi_colorspaces =
BIT(DRM_MODE_COLORIMETRY_SMPTE_170M_YCC) |
BIT(DRM_MODE_COLORIMETRY_BT709_YCC) |