diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 4944fdb..3f9c039 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -2195,6 +2195,47 @@
 	return count;
 }
 
+static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	char buf[12];
+	const size_t bufsz = sizeof(buf);
+	ssize_t ret;
+
+	pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
+			priv->cfg->plcp_delta_threshold);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	return ret;
+}
+
+static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
+					const char __user *user_buf,
+					size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = file->private_data;
+	char buf[8];
+	int buf_size;
+	int plcp;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%d", &plcp) != 1)
+		return -EINVAL;
+	if ((plcp <= IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
+		(plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
+		priv->cfg->plcp_delta_threshold =
+			IWL_MAX_PLCP_ERR_THRESHOLD_DEF;
+	else
+		priv->cfg->plcp_delta_threshold = plcp;
+	return count;
+}
+
 DEBUGFS_READ_FILE_OPS(rx_statistics);
 DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -2214,6 +2255,7 @@
 DEBUGFS_READ_FILE_OPS(fh_reg);
 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
 DEBUGFS_WRITE_FILE_OPS(internal_scan);
+DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
 
 /*
  * Create the debugfs files and directories
@@ -2268,6 +2310,7 @@
 	DEBUGFS_ADD_FILE(fh_reg, debug, S_IRUSR);
 	DEBUGFS_ADD_FILE(missed_beacon, debug, S_IWUSR);
 	DEBUGFS_ADD_FILE(internal_scan, debug, S_IWUSR);
+	DEBUGFS_ADD_FILE(plcp_delta, debug, S_IWUSR | S_IRUSR);
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
 		DEBUGFS_ADD_FILE(ucode_rx_stats, debug, S_IRUSR);
 		DEBUGFS_ADD_FILE(ucode_tx_stats, debug, S_IRUSR);
@@ -2330,6 +2373,7 @@
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_fh_reg);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_missed_beacon);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_internal_scan);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_plcp_delta);
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
 		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
 			file_ucode_rx_stats);