From: Bich Hemon <bich.he...@st.com>
100µs was too short for low speed transmission
(9600bps)
Signed-off-by: Gerald Baeza <gerald.ba...@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 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
