[PATCH] drm/i915/dsb: Move Enable/Disable engine at get/put call.

[Animesh Manna]

Signed-off-by: Animesh Manna <animesh.manna at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dsb.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c
index d8ad5fe1efef..b064c613fb8e 100644
--- a/drivers/gpu/drm/i915/display/intel_dsb.c
+++ b/drivers/gpu/drm/i915/display/intel_dsb.c
@@ -137,6 +137,7 @@ intel_dsb_get(struct intel_crtc *crtc)
 	}
 	dsb->vma = vma;
 
+	intel_dsb_enable_engine(dsb);
 err:
 	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
 	return dsb;
@@ -162,6 +163,7 @@ void intel_dsb_put(struct intel_dsb *dsb)
 		return;
 
 	if (atomic_dec_and_test(&dsb->refcount)) {
+		intel_dsb_disable_engine(dsb);
 		i915_vma_unpin_and_release(&dsb->vma, I915_VMA_RELEASE_MAP);
 		dsb->cmd_buf = NULL;
 		dsb->free_pos = 0;
@@ -299,9 +301,6 @@ void intel_dsb_commit(struct intel_dsb *dsb)
 	if (!dsb->free_pos)
 		return;
 
-	if (!intel_dsb_enable_engine(dsb))
-		goto reset;
-
 	if (is_dsb_busy(dsb)) {
 		DRM_ERROR("HEAD_PTR write failed - dsb engine is busy.\n");
 		goto reset;
@@ -328,5 +327,4 @@ void intel_dsb_commit(struct intel_dsb *dsb)
 reset:
 	dsb->free_pos = 0;
 	dsb->ins_start_offset = 0;
-	intel_dsb_disable_engine(dsb);
 }
-- 
2.22.0