From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Keith Packard <keithp@keithp.com>
Cc: Dave Airlie <airlied@redhat.com>,
intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 9/9] drm/i915: Disable eDP VDD in a delayed work proc instead of synchronously
Date: Wed, 21 Sep 2011 09:47:59 +0530 [thread overview]
Message-ID: <20110921094759.22423597@jbarnes-x220> (raw)
In-Reply-To: <1316470923-27832-10-git-send-email-keithp@keithp.com>
On Mon, 19 Sep 2011 15:22:03 -0700
Keith Packard <keithp@keithp.com> wrote:
> There's no good reason to turn off the eDP force VDD bit synchronously
> while probing devices; that just sticks a huge delay into all mode
> setting paths. Instead, queue a delayed work proc to disable the VDD
> force bit and then remember when that fires to ensure that the
> appropriate delay is respected before trying to turn it back on.
>
> Signed-off-by: Keith Packard <keithp@keithp.com>
> ---
I'm worried this makes our PPS even more complex and hard to follow.
I'd rather see VDD AUX applied only when we need it (dpms, mode set and
detect; for hotplug we can assume the panel is alive) and that we
carefully disable it after waiting for a time after a full PPS on
sequence when doing a mode set or dpms on command.
Having all the power stuff at the highest levels would be clearest I
think.
Jesse
next prev parent reply other threads:[~2011-09-21 4:19 UTC|newest]
Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-19 22:21 drm/i915: eDP cleanup patch series -- fixes SNB MacBook Air Keith Packard
2011-09-19 22:21 ` Keith Packard
2011-09-19 22:21 ` [PATCH 1/9] drm/i915: Enable digital port hotplug on PCH systems Keith Packard
2011-09-19 22:21 ` [PATCH 2/9] drm/i915: Remove extra 300ms delay during eDP mode setting Keith Packard
2011-09-19 22:21 ` [PATCH 3/9] drm/i915: Only use VBT panel mode on eDP if no EDID is found Keith Packard
2011-09-19 22:21 ` [PATCH 4/9] drm/i915: Check eDP power when doing aux channel communications Keith Packard
2011-09-19 22:21 ` [PATCH 5/9] drm/i915: Unlock PCH_PP_CONTROL always Keith Packard
2011-09-19 22:22 ` [PATCH 6/9] drm/i915: Make sure eDP power is on before using aux channel Keith Packard
2011-09-21 3:50 ` [Intel-gfx] " Jesse Barnes
2011-09-21 3:50 ` Jesse Barnes
2011-09-21 4:45 ` [Intel-gfx] " Keith Packard
2011-09-23 2:55 ` Jesse Barnes
2011-09-23 2:55 ` Jesse Barnes
2011-09-23 5:07 ` [Intel-gfx] " Keith Packard
2011-09-23 5:07 ` Keith Packard
2011-09-19 22:22 ` [PATCH 7/9] drm/i915: Correct eDP panel power sequencing delay computations Keith Packard
2011-09-19 22:22 ` [PATCH 8/9] drm/i915: Move eDP panel fixed mode from dev_priv to intel_dp Keith Packard
2011-09-19 22:22 ` [PATCH 9/9] drm/i915: Disable eDP VDD in a delayed work proc instead of synchronously Keith Packard
2011-09-21 4:17 ` Jesse Barnes [this message]
2011-09-21 4:51 ` [Intel-gfx] " Keith Packard
2011-09-23 3:22 ` Jesse Barnes
2011-09-23 3:22 ` Jesse Barnes
2011-09-30 1:09 ` [PATCH 00/24] MacBook Air patch sequence (v2) Keith Packard
2011-09-30 1:09 ` [PATCH 01/21] drm/i915: Enable digital port hotplug on PCH systems Keith Packard
2011-09-30 16:17 ` [Intel-gfx] " Daniel Vetter
2011-10-03 20:34 ` Jesse Barnes
2011-09-30 1:09 ` [PATCH 02/21] drm/i915: Shut down PCH interrupts during irq_uninstall Keith Packard
2011-09-30 16:20 ` Daniel Vetter
2011-09-30 17:44 ` Keith Packard
2011-09-30 17:56 ` Daniel Vetter
2011-09-30 1:09 ` [PATCH 03/21] drm/i915: Remove extra 300ms delay during eDP mode setting Keith Packard
2011-09-30 1:09 ` Keith Packard
2011-09-30 16:27 ` Daniel Vetter
2011-09-30 17:50 ` Keith Packard
2011-09-30 17:50 ` Keith Packard
2011-09-30 17:58 ` Daniel Vetter
2011-09-30 18:09 ` Daniel Vetter
2011-09-30 18:09 ` Daniel Vetter
2011-09-30 18:28 ` Keith Packard
2011-09-30 18:28 ` Keith Packard
2011-09-30 1:09 ` [PATCH 04/21] drm/i915: Only use VBT panel mode on eDP if no EDID is found Keith Packard
2011-09-30 1:09 ` Keith Packard
2011-09-30 16:32 ` Daniel Vetter
2011-09-30 17:58 ` Keith Packard
2011-10-03 20:42 ` [Intel-gfx] " Jesse Barnes
2011-09-30 1:09 ` [PATCH 05/21] drm/i915: Check eDP power when doing aux channel communications Keith Packard
2011-09-30 17:02 ` [Intel-gfx] " Daniel Vetter
2011-09-30 18:01 ` Keith Packard
2011-09-30 18:11 ` Daniel Vetter
2011-09-30 18:23 ` Chris Wilson
2011-10-03 20:48 ` Jesse Barnes
2011-10-03 20:48 ` Jesse Barnes
2011-09-30 1:09 ` [PATCH 06/21] drm/i915: Unlock PCH_PP_CONTROL always Keith Packard
2011-09-30 17:09 ` [Intel-gfx] " Daniel Vetter
2011-09-30 18:01 ` Keith Packard
2011-09-30 23:14 ` Keith Packard
2011-10-01 9:35 ` Daniel Vetter
2011-09-30 1:09 ` [PATCH 07/21] drm/i915: Check for eDP inside intel_edp_panel_vdd_on/off Keith Packard
2011-09-30 17:13 ` [Intel-gfx] " Daniel Vetter
2011-09-30 18:02 ` Keith Packard
2011-09-30 1:09 ` [PATCH 08/21] drm/i915: Turn force VDD back off when panel running in intel_dp_dpms Keith Packard
2011-09-30 17:15 ` [Intel-gfx] " Daniel Vetter
2011-09-30 1:09 ` [PATCH 09/21] drm/i915: Delay DP i2c initialization until panel power timings are computed Keith Packard
2011-09-30 17:25 ` [Intel-gfx] " Daniel Vetter
2011-09-30 1:09 ` [PATCH 10/21] drm/i915: Wrap DP EDID fetch functions to enable eDP panel power Keith Packard
2011-09-30 17:32 ` Daniel Vetter
2011-10-03 20:59 ` [Intel-gfx] " Jesse Barnes
2011-09-30 1:09 ` [PATCH 11/21] drm/i915: Enable eDP panel power during I2C initialization sequence Keith Packard
2011-09-30 17:26 ` Daniel Vetter
2011-09-30 1:09 ` [PATCH 12/21] drm/i915: Ensure eDP powered up during DP_SET_POWER operation in dp_prepare Keith Packard
2011-09-30 17:45 ` Daniel Vetter
2011-09-30 18:30 ` Keith Packard
2011-09-30 1:09 ` [PATCH 13/21] drm/i915: Place long delays after each eDP VDD operation Keith Packard
2011-09-30 18:01 ` [Intel-gfx] " Daniel Vetter
2011-09-30 18:31 ` Keith Packard
2011-09-30 1:09 ` [PATCH 14/21] drm/i915: Correct eDP panel power sequencing delay computations Keith Packard
2011-09-30 18:16 ` Daniel Vetter
2011-09-30 18:33 ` Keith Packard
2011-10-01 3:31 ` Keith Packard
2011-10-01 9:59 ` Daniel Vetter
2011-10-01 19:01 ` Keith Packard
2011-10-01 19:01 ` Keith Packard
2011-10-03 10:10 ` Daniel Vetter
2011-09-30 1:09 ` [PATCH 15/21] drm/i915: Move eDP panel fixed mode from dev_priv to intel_dp Keith Packard
2011-09-30 18:20 ` [Intel-gfx] " Daniel Vetter
2011-09-30 1:09 ` [PATCH 16/21] drm/i915: edp_panel_on does not need to return a bool Keith Packard
2011-09-30 18:21 ` Daniel Vetter
2011-10-03 21:03 ` [Intel-gfx] " Jesse Barnes
2011-09-30 1:09 ` [PATCH 17/21] drm/i915: Create helper functions to determine eDP power state Keith Packard
2011-09-30 18:26 ` [Intel-gfx] " Daniel Vetter
2011-09-30 1:09 ` [PATCH 18/21] drm/i915: Disable eDP VDD in a delayed work proc instead of synchronously Keith Packard
2011-09-30 10:31 ` Chris Wilson
2011-09-30 10:31 ` Chris Wilson
2011-09-30 18:06 ` Keith Packard
2011-09-30 18:47 ` Daniel Vetter
2011-09-30 20:56 ` Keith Packard
2011-09-30 22:01 ` Daniel Vetter
2011-09-30 1:09 ` [PATCH 19/21] drm/i915: Asynchronous eDP panel power off Keith Packard
2011-09-30 18:55 ` Daniel Vetter
2011-09-30 20:57 ` Keith Packard
2011-10-12 14:41 ` Dave Airlie
2011-10-12 16:43 ` Keith Packard
2011-09-30 1:09 ` [PATCH 20/21] drm/i915: Restrict ILK-specific eDP power hack to ILK Keith Packard
2011-09-30 18:57 ` Daniel Vetter
2011-09-30 1:09 ` [PATCH 21/21] drm/i915: No need to wait for eDP power off delay if panel is on Keith Packard
2011-09-30 19:01 ` Daniel Vetter
2011-09-30 3:33 ` [PATCH 00/24] MacBook Air patch sequence (v2) Greg KH
2011-09-30 8:58 ` Keith Packard
2011-09-30 13:57 ` Greg KH
2011-09-30 18:10 ` Keith Packard
2011-09-30 13:20 ` Ted Ts'o
2011-09-30 18:17 ` Keith Packard
2011-10-03 21:06 ` [Intel-gfx] " Jesse Barnes
2011-10-11 8:04 ` Chris Wilson
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