Re: [PATCH 1/2] drm/i915: take a power domain ref only when needed during HDMI detect

Imre Deak
2015-11-19T21:01:56Z

On Thu, 2015-11-19 at 20:51 +0000, Chris Wilson wrote:
> On Thu, Nov 19, 2015 at 08:55:00PM +0200, Imre Deak wrote:
> > Suggested by Ville.
>
> Do you mind explaining why this is done at the hdmi level and not the
> gmbus level?

To reduce the on/off toggling, since we don't have delayed power-off
implemented for power wells. gmbus_xfer also takes a ref to account for
accesses from the i2c device node. The solution would be to implement
delayed power-off I guess.

--Imre