Re: [PATCH 2/7] drm/msm/dpu: drop dpu_encoder_early_unregister

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On 4/30/2023 4:57 PM, Dmitry Baryshkov wrote:
There is no need to clean up debugfs manually, it will be done by the
DRM core on device deregistration.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---

There are two reasons to have the debugfs removed in the early_unregister:

1) Today, registration happens in late_register(), hence to balance the the call in _dpu_encoder_init_debugfs(), this one is present.

2) In drm_modeset_register_all(), if drm_connector_register_all() fails, it calls drm_encoder_unregister_all() first which calls early_unregister().

So to balance these out, dont we need to keep it?

  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 8 --------
  1 file changed, 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 32785cb1b079..8c45c949ec39 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2154,13 +2154,6 @@ static int dpu_encoder_late_register(struct drm_encoder *encoder)
  	return _dpu_encoder_init_debugfs(encoder);
  }
-static void dpu_encoder_early_unregister(struct drm_encoder *encoder)
-{
-	struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(encoder);
-
-	debugfs_remove_recursive(dpu_enc->debugfs_root);
-}
-
  static int dpu_encoder_virt_add_phys_encs(
  		struct msm_display_info *disp_info,
  		struct dpu_encoder_virt *dpu_enc,
@@ -2374,7 +2367,6 @@ static const struct drm_encoder_helper_funcs dpu_encoder_helper_funcs = {
  static const struct drm_encoder_funcs dpu_encoder_funcs = {
  		.destroy = dpu_encoder_destroy,
  		.late_register = dpu_encoder_late_register,
-		.early_unregister = dpu_encoder_early_unregister,
  };
struct drm_encoder *dpu_encoder_init(struct drm_device *dev,



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