diff options
| author | Abhinav Kumar <abhinavk@codeaurora.org> | 2017-07-20 18:28:52 -0700 |
|---|---|---|
| committer | Abhinav Kumar <abhinavk@codeaurora.org> | 2017-08-01 23:02:37 -0700 |
| commit | fc8b7422d9fb1acf9f402bb64b5d994769458237 (patch) | |
| tree | 771e8be548ca4c9b94f3cddb7e1ad9d8f9b7262a /drivers | |
| parent | e29d253ecf0480d4359ce41503741783d803ed6b (diff) | |
drm/edid: add support for parsing quantization select field
Add support for parsing the RGB and YCC quantization
selectable field from the Video Capability Data block(VCDB)
of the EDID.
These fields help to decide whether the default quantization
range for a particular video format can be overridden by the
source.
Change-Id: Ibc72eb13302527089ad66231cd7e8bb34fb364f3
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 39b8e171cad5..c3574c5042da 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -3526,11 +3526,17 @@ drm_extract_vcdb_info(struct drm_connector *connector, const u8 *db) (db[2] & (BIT(3) | BIT(2))) >> 2; connector->ce_scan_info = db[2] & (BIT(1) | BIT(0)); + connector->rgb_qs = + db[2] & BIT(6); + connector->yuv_qs = + db[2] & BIT(7); DRM_DEBUG_KMS("Scan Info (pt|it|ce): (%d|%d|%d)", (int) connector->pt_scan_info, (int) connector->it_scan_info, (int) connector->ce_scan_info); + DRM_DEBUG_KMS("rgb_quant_range_select %d", connector->rgb_qs); + DRM_DEBUG_KMS("ycc_quant_range_select %d", connector->yuv_qs); } static bool drm_edid_is_luminance_value_present( |