drm/msm/dpu: move SSPP debugfs creation to dpu_kms.c

As SSPP blocks are now visible through dpu_kms->rm.sspp_blocks, move
SSPP debugfs creation from dpu_plane to dpu_kms. We are going to break
the 1:1 correspondence between planes and SSPPs, so it makes no sense
anymore to create SSPP debugfs entries in dpu_plane.c
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Tested-by: Abhinav Kumar <quic_abhinavk@quicinc.com> # sc7280
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/527317/
Link: https://lore.kernel.org/r/20230316161653.4106395-4-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h

@@ -388,7 +388,6 @@ struct dpu_hw_sspp *dpu_hw_sspp_init(enum dpu_sspp idx,
  */
 void dpu_hw_sspp_destroy(struct dpu_hw_sspp *ctx);
 
-void dpu_debugfs_sspp_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root);
 int _dpu_hw_sspp_init_debugfs(struct dpu_hw_sspp *hw_pipe, struct dpu_kms *kms,
 			      struct dentry *entry);
 

drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c

@@ -250,6 +250,24 @@ void dpu_debugfs_create_regset32(const char *name, umode_t mode,
 	debugfs_create_file(name, mode, parent, regset, &dpu_regset32_fops);
 }
 
+static void dpu_debugfs_sspp_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
+{
+	struct dentry *entry = debugfs_create_dir("sspp", debugfs_root);
+	int i;
+
+	if (IS_ERR(entry))
+		return;
+
+	for (i = SSPP_NONE; i < SSPP_MAX; i++) {
+		struct dpu_hw_sspp *hw = dpu_rm_get_sspp(&dpu_kms->rm, i);
+
+		if (!hw)
+			continue;
+
+		_dpu_hw_sspp_init_debugfs(hw, dpu_kms, entry);
+	}
+}
+
 static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)
 {
 	struct dpu_kms *dpu_kms = to_dpu_kms(kms);

drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c

@@ -1400,22 +1400,6 @@ void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable)
 	_dpu_plane_set_qos_ctrl(plane, enable, DPU_PLANE_QOS_PANIC_CTRL);
 	pm_runtime_put_sync(&dpu_kms->pdev->dev);
 }
-
-/* SSPP live inside dpu_plane private data only. Enumerate them here. */
-void dpu_debugfs_sspp_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
-{
-	struct drm_plane *plane;
-	struct dentry *entry = debugfs_create_dir("sspp", debugfs_root);
-
-	if (IS_ERR(entry))
-		return;
-
-	drm_for_each_plane(plane, dpu_kms->dev) {
-		struct dpu_plane *pdpu = to_dpu_plane(plane);
-
-		_dpu_hw_sspp_init_debugfs(pdpu->pipe_hw, dpu_kms, entry);
-	}
-}
 #endif
 
 static bool dpu_plane_format_mod_supported(struct drm_plane *plane,