Commit d9b80d07 authored by Jiri Slaby's avatar Jiri Slaby Committed by Greg Kroah-Hartman
Browse files

tty: serial: owl-uart, send x_char even if stopped 



Flow control characters should be sent even if the TX is stopped. So fix
owl-uart to behave the same as other drivers.

This unification also allows the use of the TX helper in the future.

Cc: "Andreas Färber" <afaerber@suse.de>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220411104506.8990-3-jslaby@suse.cz


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 83ead219

drivers/tty/serial/owl-uart.c

+3 −3
Original line number Diff line number Diff line
@@ -184,9 +184,6 @@ static void owl_uart_send_chars(struct uart_port *port) 
	struct circ_buf *xmit = &port->state->xmit;

	unsigned int ch;



	if (uart_tx_stopped(port))

		return;



	if (port->x_char) {

		while (!(owl_uart_read(port, OWL_UART_STAT) & OWL_UART_STAT_TFFU))

			cpu_relax();
@@ -195,6 +192,9 @@ static void owl_uart_send_chars(struct uart_port *port) 
		port->x_char = 0;

	}



	if (uart_tx_stopped(port))

		return;



	while (!(owl_uart_read(port, OWL_UART_STAT) & OWL_UART_STAT_TFFU)) {

		if (uart_circ_empty(xmit))

			break;