[PATCH v4] tty: serial: meson: allow baud-rates lower than 9600
Thomas Rohloff
v10lator at myway.de
Sat Nov 4 21:29:30 PDT 2017
Devices like DCF77 receivers need the baud-rate to be as low as 50.
I have tested this on a Meson GXL device with uart_A.
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Cc: Jiri Slaby <jslaby at suse.com>
Cc: Carlo Caione <carlo at caione.org>
Cc: Kevin Hilman <khilman at baylibre.com>
Cc: linux-amlogic at lists.infradead.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Thomas Rohloff <v10lator at myway.de>
---
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 07c0f98be3ac..e281ce5d101d 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -362,7 +362,7 @@ static void meson_uart_set_termios(struct uart_port
*port,
writel(val, port->membase + AML_UART_CONTROL);
- baud = uart_get_baud_rate(port, termios, old, 9600, 4000000);
+ baud = uart_get_baud_rate(port, termios, old, 50, 4000000);
meson_uart_change_speed(port, baud);
port->read_status_mask = AML_UART_TX_FIFO_WERR;
--
2.13.6
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