On Fri, Sep 6, 2019 at 7:43 AM Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> wrote: > > On Fri, Sep 06, 2019 at 11:31:55AM +0000, Shankar, Uma wrote: > > > > > > >-----Original Message----- > > >From: Ilia Mirkin <imirkin@xxxxxxxxxxxx> > > >Sent: Tuesday, September 3, 2019 6:12 PM > > >To: Mun, Gwan-gyeong <gwan-gyeong.mun@xxxxxxxxx> > > >Cc: Intel Graphics Development <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>; Shankar, Uma > > ><uma.shankar@xxxxxxxxx>; dri-devel <dri-devel@xxxxxxxxxxxxxxxxxxxxx> > > >Subject: Re: [PATCH v4 3/7] drm: Add DisplayPort colorspace property > > > > > >So how would this work with a DP++ connector? Should it list the HDMI or DP > > >properties? Or do we need a custom property checker which is aware of what is > > >currently plugged in to validate the values? > > > > AFAIU For DP++ cases, we detect what kind of sink its driving DP or HDMI (with a passive dongle). > > Based on the type of sink detected, we should expose DP or HDMI colorspaces to userspace. > > For i915 DP connector always drives DP mode, HDMI connector always drives > HDMI mode, even when the physical connector is DP++. Right, i915 creates 2 connectors, while nouveau, radeon, and amdgpu create 1 connector (not sure about other drivers) for a single physical DP++ socket. Since we supply the list of valid values at the time of creating the connector, we can't know at that point whether in the future a HDMI or DP will be plugged into it. -ilia _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
