From: Chris Wilson Date: Mon, 16 Apr 2012 21:43:42 +0000 (+0100) Subject: drm/i915/dp: Flush any outstanding work to turn the VDD off X-Git-Tag: firefly_0821_release~3680^2~2315^2~56^2~44 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=17038de5f16569a25343cf68668f3b657eafb00e;p=firefly-linux-kernel-4.4.55.git drm/i915/dp: Flush any outstanding work to turn the VDD off 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 Cc: Keith Packard Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 6346b29ee934..38d097db696f 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1128,6 +1128,7 @@ 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);