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drm/edid: Fill PAR in AVI infoframe based on CEA mode list

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Populate PAR in infoframe structure. If there is a user setting for PAR, then
that value is set. Else, value is taken from CEA mode list if VIC is found.
Else, PAR is calculated from resolution. If none of these conditions are
satisfied, PAR is NONE as per initialization.

v2: Removed the part which sets PAR according to user input, based on
Daniel's review comments.

A separate patch will be submitted to create a property that would enable a
user space app to set aspect ratio for AVI infoframe.

v2: Removed the part which sets PAR according to user input, based on
Daniel's review comments.

v3: Removed calculation of PAR for non-CEA modes as per discussion with
Ville.

A separate patch will be submitted to create a property that would enable a
user space app to set aspect ratio for AVI infoframe.

Signed-off-by: Vandana Kannan <[email protected]>
Cc: Jesse Barnes <[email protected]>
Cc: Vijay Purushothaman <[email protected]>
Cc: Ville Syrjälä <[email protected]>
Cc: [email protected]
Reviewed-by: Jesse Barnes <[email protected]>
[danvet: Squash in fixup for htmldocs.]
Signed-off-by: Daniel Vetter <[email protected]>
This commit is contained in:
Vandana Kannan 2014-04-01 16:26:59 +05:30 • committed by Daniel Vetter
commit 0967e6a507
2 changed files with 23 additions and 0 deletions
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1
include/drm/drm_crtc.h
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@ -1020,6 +1020,7 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
extern bool drm_detect_hdmi_monitor(struct edid *edid);
extern bool drm_detect_monitor_audio(struct edid *edid);
extern bool drm_rgb_quant_range_selectable(struct edid *edid);