[PATCH 1/3] tty: serial: meson: modify request_irq and free_irq

[Yu Tu]

Change request_irq to devm_request_irq and free_irq to devm_free_irq.
It's better to change the code this way.

The IRQF_SHARED interrupt flag was added because an interrupt error was
detected when the serial port was opened twice in a row on the project.

Signed-off-by: Yu Tu <yu.tu at amlogic.com>
---
 drivers/tty/serial/meson_uart.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index d2c08b760f83..02fafb8229d2 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -121,7 +121,7 @@ static void meson_uart_shutdown(struct uart_port *port)
 	unsigned long flags;
 	u32 val;
 
-	free_irq(port->irq, port);
+	devm_free_irq(port->dev, port->irq, port);
 
 	spin_lock_irqsave(&port->lock, flags);
 
@@ -287,8 +287,8 @@ static int meson_uart_startup(struct uart_port *port)
 	val = (AML_UART_RECV_IRQ(1) | AML_UART_XMIT_IRQ(port->fifosize / 2));
 	writel(val, port->membase + AML_UART_MISC);
 
-	ret = request_irq(port->irq, meson_uart_interrupt, 0,
-			  port->name, port);
+	ret = devm_request_irq(port->dev, port->irq, meson_uart_interrupt,
+			       IRQF_SHARED, port->name, port);
 
 	return ret;
 }
-- 
2.33.1