From: Eric Anholt <eric@anholt.net>
To: Jesse Barnes <jbarnes@virtuousgeek.org>, intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/8] drm/i915/dp: retry link status read 3 times on failure
Date: Tue, 05 Jul 2011 21:27:35 -0700 [thread overview]
Message-ID: <87wrfwdoeg.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <1309558978-4704-2-git-send-email-jbarnes@virtuousgeek.org>
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On Fri, 1 Jul 2011 15:22:51 -0700, Jesse Barnes <jbarnes@virtuousgeek.org> wrote:
> Especially after a hotplug or power status change, the sink may not
> reply immediately to a link status query. So retry 3 times per the spec
> to really make sure nothing is there.
One thing we've been trying to do increasingly on the 3D side is cite
chapter and verse in comments when we're doing something "per the spec"
(which spec here?). Clarifies whether it was some crazy workaround
copying what the BIOS did at one point vs. something that we really are
supposed to do.
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next prev parent reply other threads:[~2011-07-06 4:27 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-01 22:22 [RFC] misc DP fixes/changes Jesse Barnes
2011-07-01 22:22 ` [PATCH 1/8] drm/i915/dp: retry link status read 3 times on failure Jesse Barnes
2011-07-01 23:41 ` Keith Packard
2011-07-01 23:47 ` Jesse Barnes
2011-07-06 4:27 ` Eric Anholt [this message]
2011-07-06 16:09 ` Jesse Barnes
2011-07-01 22:22 ` [PATCH 2/8] drm/i915/dp: use DP DPCD defines when looking at DPCD values Jesse Barnes
2011-07-01 23:43 ` Keith Packard
2011-07-01 22:22 ` [PATCH 3/8] drm/i915/dp: read more receiver capability bits on hotplug Jesse Barnes
2011-07-01 23:45 ` Keith Packard
2011-07-01 22:22 ` [PATCH 4/8] drm/i915/dp: try to read receiver capabilities 3 times when detecting Jesse Barnes
2011-07-01 23:45 ` Keith Packard
2011-07-01 22:22 ` [PATCH 5/8] drm/i915/dp: set DP DPMS mode to "on" in ->commit Jesse Barnes
2011-07-01 23:46 ` Keith Packard
2011-07-01 22:22 ` [PATCH 6/8] drm/i915/dp: clear DP encoder CRTC if the receiver disappears Jesse Barnes
2011-07-01 23:48 ` Keith Packard
2011-07-01 23:59 ` Jesse Barnes
2011-07-02 0:31 ` Keith Packard
2011-07-01 22:22 ` [PATCH 7/8] drm/i915/dp: rename dpms_mode to receiver_configured Jesse Barnes
2011-07-01 23:50 ` Keith Packard
2011-07-01 22:22 ` [PATCH 8/8] drm/i915/dp: clear receiver_configured when link training fails Jesse Barnes
2011-07-01 23:51 ` Keith Packard
2011-07-01 23:39 ` [RFC] misc DP fixes/changes Keith Packard
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