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[06/20] serial: stm32: fix pio transmit timeout

Message ID 1498481318-1894-7-git-send-email-bich.hemon@st.com
State New
Headers show

Commit Message

Bich HEMON June 26, 2017, 12:49 p.m. UTC 
From: Bich Hemon <bich.hemon@st.com>


100µs was too short for low speed transmission
(9600bps)

Signed-off-by: Gerald Baeza <gerald.baeza@st.com>

---
 drivers/tty/serial/stm32-usart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
1.9.1
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Patch

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");