diff --git a/boards/arc/emsdp/emsdp-pinctrl.dtsi b/boards/arc/emsdp/emsdp-pinctrl.dtsi
index 0873c798c40..e54541a7bf1 100644
--- a/boards/arc/emsdp/emsdp-pinctrl.dtsi
+++ b/boards/arc/emsdp/emsdp-pinctrl.dtsi
@@ -133,6 +133,6 @@
 
 	/* INNER_CONNECT, DUMMY MUX */
 	unmuxed_pin: unmuxed_pin {
-		pinmux = <INNER_CONNECT NOT_PINMUX>;
+		pinmux = <UNMUXED_PIN NOT_PINMUX>;
 	};
 };
diff --git a/drivers/pinctrl/pinctrl_emsdp.c b/drivers/pinctrl/pinctrl_emsdp.c
index 07f5df35473..c535c91728f 100644
--- a/drivers/pinctrl/pinctrl_emsdp.c
+++ b/drivers/pinctrl/pinctrl_emsdp.c
@@ -11,6 +11,12 @@
 #include <zephyr/drivers/pinctrl.h>
 #include <zephyr/dt-bindings/pinctrl/emsdp-pinctrl.h>
 
+/**
+ * Mux Control Register Index
+ */
+#define PMOD_MUX_CTRL 0 /*!< 32-bits, offset 0x0 */
+#define ARDUINO_MUX_CTRL 4 /*!< 32-bits, offset 0x4 */
+
 #define EMSDP_CREG_BASE            DT_INST_REG_ADDR(0)
 #define EMSDP_CREG_PMOD_MUX_OFFSET (0x0030)
 
@@ -103,7 +109,7 @@ static int pinctrl_emsdp_set(uint32_t pin, uint32_t type)
 	const uint32_t mux_regs = (EMSDP_CREG_BASE + EMSDP_CREG_PMOD_MUX_OFFSET);
 	uint32_t reg;
 
-	if (pin == INNER_CONNECT) {
+	if (pin == UNMUXED_PIN) {
 		return 0;
 	}
 
diff --git a/include/zephyr/dt-bindings/pinctrl/emsdp-pinctrl.h b/include/zephyr/dt-bindings/pinctrl/emsdp-pinctrl.h
index f3cfc60ffa4..7ba0534784b 100644
--- a/include/zephyr/dt-bindings/pinctrl/emsdp-pinctrl.h
+++ b/include/zephyr/dt-bindings/pinctrl/emsdp-pinctrl.h
@@ -7,13 +7,6 @@
 #ifndef ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_EMSDP_PINCTRL_H_
 #define ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_EMSDP_PINCTRL_H_
 
-/**
- * Mux Control Register Index
- */
-#define PMOD_MUX_CTRL 0 /*!< 32-bits, offset 0x0 */
-
-#define ARDUINO_MUX_CTRL 4 /*!< 32-bits, offset 0x4 */
-
 #define PMOD_A              0
 #define PMOD_B              1
 #define PMOD_C              2
@@ -37,7 +30,7 @@
 #define ARDUINO_PIN_AD3     20
 #define ARDUINO_PIN_AD4     21
 #define ARDUINO_PIN_AD5     22
-#define INNER_CONNECT       23
+#define UNMUXED_PIN       23
 
 #define PMOD_GPIO           0
 #define PMOD_UARTA          1