[v3 2/3] drm: Add DP colorspace property

[Shankar, Uma]

>-----Original Message-----
>From: Chris Wilson [mailto:chris at chris-wilson.co.uk]
>Sent: Tuesday, November 20, 2018 7:41 PM
>To: Shankar, Uma <uma.shankar at intel.com>; dri-devel at lists.freedesktop.org;
>intel-gfx at lists.freedesktop.org
>Cc: Syrjala, Ville <ville.syrjala at intel.com>; jonas at kwiboo.se;
>hansverk at cisco.com; Shankar, Uma <uma.shankar at intel.com>; Lankhorst,
>Maarten <maarten.lankhorst at intel.com>
>Subject: Re: [v3 2/3] drm: Add DP colorspace property
>
>Quoting Uma Shankar (2018-11-20 14:22:10)
>> @@ -1457,6 +1480,18 @@ int drm_mode_create_colorspace_property(struct
>drm_connector *connector)
>>                         return -ENOMEM;
>>
>>                 dev->mode_config.hdmi_colorspace_property = prop;
>> +       } else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP
>||
>> +               connector->connector_type ==
>DRM_MODE_CONNECTOR_DisplayPort) {
>> +               if (dev->mode_config.dp_colorspace_property)
>> +                       return 0;
>> +
>> +               prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
>> +                                               "DP_Colorspace", dp_colorspace,
>> +                                               ARRAY_SIZE(dp_colorspace));
>> +               if (!prop)
>> +                       return -ENOMEM;
>
>Why different names for DP/HDMI?
There are some colorspaces specific to HDMI and DP, hence we created separate properties
for these encoders. This is just to expose DP specifc colorspaces on a DP connector and same way
for HDMI. Earlier, we had just one but it was giving DP stuff as well to a HDMI Connector and vice-versa
which was not looking good.

Regards,
Uma Shankar
>-Chris