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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-04-16 22:43:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-10 00:36:19 +0900 |
| commit | 546230dfa483f6d1f188d1a1a20122ecabf82816 (patch) | |
| tree | c5575b037e9e5b66fce1abee67d45227d72e6189 | |
| parent | b522dbf26fe08158348773c36dbf88e8147dcc66 (diff) | |
| download | lwn-546230dfa483f6d1f188d1a1a20122ecabf82816.tar.gz lwn-546230dfa483f6d1f188d1a1a20122ecabf82816.zip | |
drm/i915/dp: Flush any outstanding work to turn the VDD off
commit 17038de5f16569a25343cf68668f3b657eafb00e upstream.
As we may kick off a delayed workqueue task to switch of the VDD lines, we
need to complete that task prior to turning off the panel (which itself
depends upon VDD being off).
v2: Don't cancel the outstanding work as this may trigger a deadlock
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 4b637919f74f..3a866f0410bd 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1149,6 +1149,7 @@ static void ironlake_edp_panel_off(struct intel_dp *intel_dp) DRM_DEBUG_KMS("Turn eDP power off\n"); WARN(intel_dp->want_panel_vdd, "Cannot turn power off while VDD is on\n"); + ironlake_panel_vdd_off_sync(intel_dp); /* finish any pending work */ pp = ironlake_get_pp_control(dev_priv); pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE); |