[PATCH 11/15] tty: serial: qcom-geni-serial: stop operations in progress at shutdown

Bartosz Golaszewski
2022-11-18T12:27:47Z

We don't stop transmissions in progress at shutdown. This is fine with
FIFO SE mode but with DMA it causes trouble so fix it now.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
drivers/tty/serial/qcom_geni_serial.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 6a9f3f937f29..091b8f277a04 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -868,6 +868,9 @@ static void get_tx_fifo_size(struct qcom_geni_serial_port *port)

static void qcom_geni_serial_shutdown(struct uart_port *uport)
{
+ qcom_geni_serial_stop_tx(uport);
+ qcom_geni_serial_stop_rx(uport);
+
disable_irq(uport->irq);
}

--
2.37.2