From 035d53e0f36da6ce49abf7bea3d9b30a075ff247 Mon Sep 17 00:00:00 2001 From: Harry Wentland Date: Wed, 30 Nov 2022 16:11:30 -0500 Subject: drm/connector: Print connector colorspace in state debugfs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit v3: Fix kerneldocs (kernel test robot) v4: Avoid returning NULL from drm_get_colorspace_name Signed-off-by: Harry Wentland Reviewed-by: Sebastian Wick Reviewed-by: Joshua Ashton Reviewed-by: Simon Ser Cc: Pekka Paalanen Cc: Sebastian Wick Cc: Vitaly.Prosyak@amd.com Cc: Uma Shankar Cc: Ville Syrjälä Cc: Joshua Ashton Cc: Jani Nikula Cc: Simon Ser Cc: Melissa Wen Cc: dri-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Alex Deucher --- drivers/gpu/drm/drm_connector.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/gpu/drm/drm_connector.c') 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) | -- cgit v1.2.3