diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 292cb5023683..baa6ccb3e18b 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4321,6 +4321,20 @@ drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame, frame->quantization_range = rgb_quant_range; else frame->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT; + + /* + * CEA-861-F: + * "When transmitting any RGB colorimetry, the Source should set the + * YQ-field to match the RGB Quantization Range being transmitted + * (e.g., when Limited Range RGB, set YQ=0 or when Full Range RGB, + * set YQ=1) and the Sink shall ignore the YQ-field." + */ + if (rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED) + frame->ycc_quantization_range = + HDMI_YCC_QUANTIZATION_RANGE_LIMITED; + else + frame->ycc_quantization_range = + HDMI_YCC_QUANTIZATION_RANGE_FULL; } EXPORT_SYMBOL(drm_hdmi_avi_infoframe_quant_range); |