提交 374a868a 编写于 作者: P Paulo Zanoni 提交者: Daniel Vetter

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=50371Signed-off-by: NPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: NThierry Reding <thierry.reding@avionic-design.de>
Acked-by: NDave Airlie <airlied@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
上级 2ff4aeac
......@@ -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);
......@@ -1055,6 +1055,7 @@ extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
int GTF_2C, int GTF_K, int GTF_2J);
extern int drm_add_modes_noedid(struct drm_connector *connector,
int hdisplay, int vdisplay);
extern uint8_t drm_mode_cea_vic(const struct drm_display_mode *mode);
extern int drm_edid_header_is_valid(const u8 *raw_edid);
extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
......
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