Re: [PATCH 1/2] drm/dp/mst: Sideband message transaction to power up/down nodes

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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>
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux