From: Ville Syrjälä <ville.syrj...@linux.intel.com>

If intel_crtc_disable_noatomic() were to ever get called during resume
e'd end up deadlocking since resume has its own acqcuire_ctx but
intel_crtc_disable_noatomic() still tries to use the
mode_config.acquire_ctx. Pass down the correct acquire ctx from the top.

Cc: sta...@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Fixes: e2c8b8701e2d ("drm/i915: Use atomic helpers for suspend, v2.")
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 2f76a63efe8c..4e3c64ed4131 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5839,7 +5839,8 @@ static void i9xx_crtc_disable(struct intel_crtc_state 
*old_crtc_state,
                intel_update_watermarks(intel_crtc);
 }
 
-static void intel_crtc_disable_noatomic(struct drm_crtc *crtc)
+static void intel_crtc_disable_noatomic(struct drm_crtc *crtc,
+                                       struct drm_modeset_acquire_ctx *ctx)
 {
        struct intel_encoder *encoder;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
@@ -5869,7 +5870,7 @@ static void intel_crtc_disable_noatomic(struct drm_crtc 
*crtc)
                return;
        }
 
-       state->acquire_ctx = crtc->dev->mode_config.acquire_ctx;
+       state->acquire_ctx = ctx;
 
        /* Everything's already locked, -EDEADLK can't happen. */
        crtc_state = intel_atomic_get_crtc_state(state, intel_crtc);
@@ -15257,7 +15258,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
                plane = crtc->plane;
                crtc->base.primary->state->visible = true;
                crtc->plane = !plane;
-               intel_crtc_disable_noatomic(&crtc->base);
+               intel_crtc_disable_noatomic(&crtc->base, ctx);
                crtc->plane = plane;
        }
 
@@ -15273,7 +15274,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
        /* Adjust the state of the output pipe according to whether we
         * have active connectors/encoders. */
        if (crtc->active && !intel_crtc_has_encoders(crtc))
-               intel_crtc_disable_noatomic(&crtc->base);
+               intel_crtc_disable_noatomic(&crtc->base, ctx);
 
        if (crtc->active || HAS_GMCH_DISPLAY(dev_priv)) {
                /*
-- 
2.10.2

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