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Date: Fri, 23 Sep 2011 08:52:43 +0530 From: Jesse Barnes <jbarnes@...tuousgeek.org> To: Keith Packard <keithp@...thp.com> Cc: Dave Airlie <airlied@...hat.com>, intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org Subject: Re: [Intel-gfx] [PATCH 9/9] drm/i915: Disable eDP VDD in a delayed work proc instead of synchronously On Tue, 20 Sep 2011 21:51:33 -0700 Keith Packard <keithp@...thp.com> wrote: > Yes, making it cleaner would help a ton. There are some basic problems > with the DRM API that make this hard though -- intel_dp_prepare may > not ever be followed by a call to intel_dp_commit. That's why I had > the VDD AUX stuff get turned off by a delayed work proc instead. > > Also, leaving VDD AUX high after EDID is fetched means that we can > start the mode setting immediately, rather than having to wait for the > power-off/power-on delay (which is really long). Yeah agreed. > What we could do is force VDD AUX off after the panel gets turned on; > that would ensure that turning the panel off would actually turn the > power off, rather than having VDD stay high for some time after that. Yep, that sounds great. Thanks, Jesse -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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