[PATCH 1/3] tty: serial: meson: modify request_irq and free_irq
From: Yu Tu <hidden>
Date: 2021-12-21 07:32:12
Also in:
linux-amlogic, linux-arm-kernel, lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
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 <redacted> --- 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