From: Gerald Baeza <gerald.ba...@st.com> 100µs was too short for low speed transmission (9600bps)
Signed-off-by: Gerald Baeza <gerald.ba...@st.com> Signed-off-by: Bich Hemon <bich.he...@st.com> --- 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 a12d79c..ca61bfe 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -202,7 +202,7 @@ 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