[PATCH V3 5/6] tty: serial: meson: meson_uart_shutdown omit clear AML_UART_TX_EN bit
From: Yu Tu <hidden>
Date: 2021-12-30 10:23:00
Also in:
linux-amlogic, linux-arm-kernel, lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
This change is an improvement. The meson_uart_shutdown function should have the opposite operation to the meson_uart_startup function, but the meson_uart_shutdown of AML_UART_TX_EN is logically missing. Signed-off-by: Yu Tu <redacted> --- drivers/tty/serial/meson_uart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index 07eb1f40aaaa..45e41f20cba3 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c@@ -140,7 +140,7 @@ static void meson_uart_shutdown(struct uart_port *port) spin_lock_irqsave(&port->lock, flags); val = readl(port->membase + AML_UART_CONTROL); - val &= ~AML_UART_RX_EN; + val &= ~(AML_UART_RX_EN | AML_UART_TX_EN); val &= ~(AML_UART_RX_INT_EN | AML_UART_TX_INT_EN); writel(val, port->membase + AML_UART_CONTROL);
--
2.33.1