On 2017-09-05 18:26, Dhinakaran Pandiyan wrote: > The POWER_DOWN_PHY and POWER_UP_PHY sideband message transactions allow > the source to reqest any node in a mst path or a whole path to be > powered down or up. This allows drivers to target a specific sink in the > MST topology, an improvement over just power managing the imediate > downstream device. Secondly, since the request-reply protocol waits for an > ACK, we can be sure that a downstream sink has enough time to respond to a > power up/down request. > > Cc: Lyude <lyude@xxxxxxxxxx> > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Cc: Harry Wentland <harry.wentland@xxxxxxx> > Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx> Tested-by: Stefan Assmann <sassmann@xxxxxxxxxx> _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
