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[05/12] drm: Don't generate invalid AVI infoframes for CEA modes

Message ID 1375817544-14565-6-git-send-email-damien.lespiau@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Lespiau, Damien Aug. 6, 2013, 7:32 p.m. UTC 
From CEA-861:

  Data Byte 1, bit A0 indicates whether Active Format Data is present in
  Data Byte 2 bits R3 through R0. A source device shall set A0=1 when
  any of the AFD bits are set.

ie. if we want to set active_aspect, we need to set the
active_info_valid bit to 1 as well.

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
---
 drivers/gpu/drm/drm_edid.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 95d6f4b..8d1139f 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3107,6 +3107,7 @@  drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
 		return 0;
 
 	frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
+	frame->active_info_valid = 1;
 	frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
 
 	return 0;