diff options
| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2012-11-23 18:09:26 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-11-29 14:42:37 +0400 |
| commit | 374a868a726eb8a1cb28ba88805e51ce34222f8d (patch) | |
| tree | c6d63768af759869d9b196571d5a5c74640ccd2e /drivers/gpu/drm | |
| parent | 2ff4aeac39dbdcac934694413767f09a27965e11 (diff) | |
| download | linux-374a868a726eb8a1cb28ba88805e51ce34222f8d.tar.xz | |
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 <thierry.reding@avionic-design.de>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50371
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 19 |
1 files changed, 19 insertions, 0 deletions
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); |