[PATCH 4/9] serial: stm32: fix pio transmit timeout
From: Bich HEMON <hidden>
Date: 2017-07-13 15:09:16
Also in:
linux-devicetree, linux-serial, lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
From: Gerald Baeza <redacted> 100?s was too short for low speed transmission (9600bps) Signed-off-by: Gerald Baeza <redacted> Signed-off-by: Bich Hemon <redacted> --- 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