From: Bich Hemon <bich.hemon@xxxxxx> 100µs was too short for low speed transmission (9600bps) Signed-off-by: Gerald Baeza <gerald.baeza@xxxxxx> --- drivers/tty/serial/stm32-usart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 3ce0f7a..79ac167 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -247,7 +247,7 @@ static void stm32_transmit_chars_pio(struct uart_port *port) ret = readl_relaxed_poll_timeout_atomic(port->membase + ofs->isr, isr, (isr & USART_SR_TXE), - 10, 100); + 10, 100000); if (ret) dev_err(port->dev, "tx empty not set\n"); -- 1.9.1 ��.n��������+%������w��{.n����z�{��ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f