From 374a868a726eb8a1cb28ba88805e51ce34222f8d Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 23 Nov 2012 12:09:26 -0200 Subject: drm: add drm_mode_cea_vic This function returns the VIC of the mode. This value can be used when creating AVI InfoFrames. Cc: Thierry Reding Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50371 Signed-off-by: Paulo Zanoni Reviewed-by: Thierry Reding Acked-by: Dave Airlie Signed-off-by: Daniel Vetter --- drivers/gpu/drm/drm_edid.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'drivers/gpu/drm') diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 164820003546..011bd4f4635e 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -2079,3 +2079,22 @@ int drm_add_modes_noedid(struct drm_connector *connector, return num_modes; } EXPORT_SYMBOL(drm_add_modes_noedid); + +/** + * drm_mode_cea_vic - return the CEA-861 VIC of a given mode + * @mode: mode + * + * RETURNS: + * The VIC number, 0 in case it's not a CEA-861 mode. + */ +uint8_t drm_mode_cea_vic(const struct drm_display_mode *mode) +{ + uint8_t i; + + for (i = 0; i < drm_num_cea_modes; i++) + if (drm_mode_equal(mode, &edid_cea_modes[i])) + return i + 1; + + return 0; +} +EXPORT_SYMBOL(drm_mode_cea_vic); -- cgit v1.2.2