disp: msm: dsi: add dsi ramdump support without DEBUG_FS

This change adds dsi display ramdump support when DEBUG_FS
is not enabled.

Change-Id: Ic6659a9380acd5eb55a3270d3e3b7016a9cd2bd7
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>

msm/dsi/dsi_ctrl.c

@@ -338,6 +338,13 @@ static int dsi_ctrl_debugfs_deinit(struct dsi_ctrl *dsi_ctrl)
 #else
 static int dsi_ctrl_debugfs_init(struct dsi_ctrl *dsi_ctrl, struct dentry *parent)
 {
+	char dbg_name[DSI_DEBUG_NAME_LEN];
+
+	snprintf(dbg_name, DSI_DEBUG_NAME_LEN, "dsi%d_ctrl",
+						dsi_ctrl->cell_index);
+	sde_dbg_reg_register_base(dbg_name,
+				dsi_ctrl->hw.base,
+				msm_iomap_size(dsi_ctrl->pdev, "dsi_ctrl"));
 	return 0;
 }
 static int dsi_ctrl_debugfs_deinit(struct dsi_ctrl *dsi_ctrl)