From: Imre Deak <imre.deak@intel.com>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/2] drm/i915: take a power domain ref only when needed during HDMI detect
Date: Thu, 19 Nov 2015 23:01:49 +0200 [thread overview]
Message-ID: <1447966909.7864.13.camel@intel.com> (raw)
In-Reply-To: <20151119205120.GA24442@nuc-i3427.alporthouse.com>
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
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next prev parent reply other threads:[~2015-11-19 21:01 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-19 18:55 [PATCH 1/2] drm/i915: take a power domain ref only when needed during HDMI detect Imre Deak
2015-11-19 18:55 ` [PATCH 2/2] drm/i915: take a power domain reference while checking the HDMI live status Imre Deak
2015-11-19 19:08 ` Ville Syrjälä
2015-11-19 19:13 ` Imre Deak
2015-11-19 19:17 ` Ville Syrjälä
2015-11-20 9:54 ` Imre Deak
2015-11-20 10:12 ` Imre Deak
2015-11-20 11:13 ` Jani Nikula
2015-11-24 14:23 ` Imre Deak
2015-11-19 20:51 ` [PATCH 1/2] drm/i915: take a power domain ref only when needed during HDMI detect Chris Wilson
2015-11-19 21:01 ` Imre Deak [this message]
2015-11-19 21:38 ` Chris Wilson
2015-11-19 21:50 ` Imre Deak
2015-11-19 22:24 ` Imre Deak
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