From: Bartosz Golaszewski Date: Thu, 29 Dec 2022 15:50:17 +0000 (+0100) Subject: tty: serial: qcom-geni-serial: stop operations in progress at shutdown X-Git-Tag: v6.6.7~3437^2~97 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d8aca2f96813d51df574a811eda9a2cbed00f261;p=platform%2Fkernel%2Flinux-starfive.git tty: serial: qcom-geni-serial: stop operations in progress at shutdown We don't stop transmissions in progress at shutdown. This is fine with FIFO SE mode but with DMA (support for which we'll introduce later) it causes trouble so fix it now. Fixes: e83766334f96 ("tty: serial: qcom_geni_serial: No need to stop tx/rx on UART shutdown") Signed-off-by: Bartosz Golaszewski Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20221229155030.418800-2-brgl@bgdev.pl Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index b487823..4f4c12f 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -880,6 +880,8 @@ static void get_tx_fifo_size(struct qcom_geni_serial_port *port) static void qcom_geni_serial_shutdown(struct uart_port *uport) { disable_irq(uport->irq); + qcom_geni_serial_stop_tx(uport); + qcom_geni_serial_stop_rx(uport); } static int qcom_geni_serial_port_setup(struct uart_port *uport)