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Commit a61d9e6e authored by Gerald Baeza's avatar Gerald Baeza Committed by Greg Kroah-Hartman
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serial: stm32: fix pio transmit timeout 



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

Signed-off-by: default avatarGerald Baeza <gerald.baeza@st.com>
Signed-off-by: default avatarBich Hemon <bich.hemon@st.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a704ddc2

drivers/tty/serial/stm32-usart.c

+1 −1
Original line number Diff line number Diff line
@@ -203,7 +203,7 @@ 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");