diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 12ddca608eba..c60c5354a5b9 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -771,9 +771,8 @@ static unsigned int lpuart32_tx_empty(struct uart_port *port)
 	return 0;
 }
 
-static irqreturn_t lpuart_txint(int irq, void *dev_id)
+static void lpuart_txint(struct lpuart_port *sport)
 {
-	struct lpuart_port *sport = dev_id;
 	struct circ_buf *xmit = &sport->port.state->xmit;
 	unsigned long flags;
 
@@ -804,12 +803,10 @@ static irqreturn_t lpuart_txint(int irq, void *dev_id)
 
 out:
 	spin_unlock_irqrestore(&sport->port.lock, flags);
-	return IRQ_HANDLED;
 }
 
-static irqreturn_t lpuart_rxint(int irq, void *dev_id)
+static void lpuart_rxint(struct lpuart_port *sport)
 {
-	struct lpuart_port *sport = dev_id;
 	unsigned int flg, ignored = 0, overrun = 0;
 	struct tty_port *port = &sport->port.state->port;
 	unsigned long flags;
@@ -878,12 +875,10 @@ out:
 	spin_unlock_irqrestore(&sport->port.lock, flags);
 
 	tty_flip_buffer_push(port);
-	return IRQ_HANDLED;
 }
 
-static irqreturn_t lpuart32_rxint(int irq, void *dev_id)
+static void lpuart32_rxint(struct lpuart_port *sport)
 {
-	struct lpuart_port *sport = dev_id;
 	unsigned int flg, ignored = 0;
 	struct tty_port *port = &sport->port.state->port;
 	unsigned long flags;
@@ -942,7 +937,6 @@ out:
 	spin_unlock_irqrestore(&sport->port.lock, flags);
 
 	tty_flip_buffer_push(port);
-	return IRQ_HANDLED;
 }
 
 static irqreturn_t lpuart_int(int irq, void *dev_id)
@@ -953,10 +947,10 @@ static irqreturn_t lpuart_int(int irq, void *dev_id)
 	sts = readb(sport->port.membase + UARTSR1);
 
 	if (sts & UARTSR1_RDRF)
-		lpuart_rxint(irq, dev_id);
+		lpuart_rxint(sport);
 
 	if (sts & UARTSR1_TDRE)
-		lpuart_txint(irq, dev_id);
+		lpuart_txint(sport);
 
 	return IRQ_HANDLED;
 }
@@ -971,10 +965,10 @@ static irqreturn_t lpuart32_int(int irq, void *dev_id)
 	rxcount = rxcount >> UARTWATER_RXCNT_OFF;
 
 	if ((sts & UARTSTAT_RDRF || rxcount > 0) && !sport->lpuart_dma_rx_use)
-		lpuart32_rxint(irq, dev_id);
+		lpuart32_rxint(sport);
 
 	if ((sts & UARTSTAT_TDRE) && !sport->lpuart_dma_tx_use)
-		lpuart_txint(irq, dev_id);
+		lpuart_txint(sport);
 
 	lpuart32_write(&sport->port, sts, UARTSTAT);
 	return IRQ_HANDLED;