disp: msm: sde: remove drm panel callback

For GKI2.0, the old drm_panel_notifier function could not
be used anymore, so removed it.

Change-Id: I858f90d7c39816dc95ab59f88c8988237319eadc
Signed-off-by: Yuan Zhao <yzhao@codeaurora.org>

msm/sde/sde_kms.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.
  * Copyright (C) 2013 Red Hat
  * Author: Rob Clark <robdclark@gmail.com>
  *
@@ -128,6 +128,11 @@
 /* ESD status check interval in miliseconds */
 #define STATUS_CHECK_INTERVAL_MS 5000
 
+/* A hardware display blank change occurred */
+#define DRM_PANEL_EVENT_BLANK          0x01
+/* A hardware display blank early change occurred */
+#define DRM_PANEL_EARLY_EVENT_BLANK    0x02
+
 /**
  * enum sde_kms_smmu_state:	smmu state
  * @ATTACHED:	 all the context banks are attached.
@@ -186,6 +191,19 @@ enum frame_trigger_mode_type {
 	FRAME_DONE_WAIT_POSTED_START,
 };
 
+/*
+ * @DRM_PANEL_BLANK_UNBLANK: power on
+ * @DRM_PANEL_BLANK_POWERDOWN: power off
+ * @DRM_PANEL_BLANK_LP: low power mode
+ * @DRM_PANEL_BLANK_FPS_CHANGE: fps change
+ */
+enum {
+	DRM_PANEL_BLANK_UNBLANK,
+	DRM_PANEL_BLANK_POWERDOWN,
+	DRM_PANEL_BLANK_LP,
+	DRM_PANEL_BLANK_FPS_CHANGE,
+};
+
 /**
  * struct sde_kms_smmu_state_data: stores the smmu state and transition type
  * @state: current state of smmu context banks