From: Ville Syrjälä <ville.syrj...@linux.intel.com>
In case DSB was busy before we started it we try to disable it.
Let's try to wait for it to become idle.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_dsb.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c
b/drivers/gpu/drm/i915/display/intel_dsb.c
index 53759bf7a451..45acfd91ee74 100644
--- a/drivers/gpu/drm/i915/display/intel_dsb.c
+++ b/drivers/gpu/drm/i915/display/intel_dsb.c
@@ -300,4 +300,7 @@ void intel_dsb_commit(struct intel_dsb *dsb)
dsb->free_pos = 0;
dsb->ins_start_offset = 0;
intel_de_write(dev_priv, DSB_CTRL(pipe, dsb->id), 0);
+
+ if (wait_for(!is_dsb_busy(dsb), 1))
+ DRM_ERROR("Timed out waiting for DSB idle.\n");
}
--
2.24.1
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