diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index b0b78f3..bcfc8a2 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -784,10 +784,35 @@
 	return 0;
 }
 
+#define DBG_SHOW_FLAG(flag) do {		\
+	if (config & flag) {			\
+		if (num_conf)			\
+			seq_puts(s, "|");	\
+		seq_puts(s, #flag);		\
+		num_conf++;			\
+	}					\
+} while (0)
+
 static void at91_pinconf_dbg_show(struct pinctrl_dev *pctldev,
 				   struct seq_file *s, unsigned pin_id)
 {
+	unsigned long config;
+	int ret, val, num_conf = 0;
 
+	ret = at91_pinconf_get(pctldev, pin_id, &config);
+
+	DBG_SHOW_FLAG(MULTI_DRIVE);
+	DBG_SHOW_FLAG(PULL_UP);
+	DBG_SHOW_FLAG(PULL_DOWN);
+	DBG_SHOW_FLAG(DIS_SCHMIT);
+	DBG_SHOW_FLAG(DEGLITCH);
+	DBG_SHOW_FLAG(DEBOUNCE);
+	if (config & DEBOUNCE) {
+		val = config >> DEBOUNCE_VAL_SHIFT;
+		seq_printf(s, "(%d)", val);
+	}
+
+	return;
 }
 
 static void at91_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,