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Commit 2276f03b authored by Robert Jarzmik's avatar Robert Jarzmik Committed by Russell King
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[ARM] 5244/1: Add hardware CTSRTS flow control to pxa serial driver 



Adds hardware CTSRTS control for pxa serial devices through
termios controls.

Signed-off-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 4104980a

drivers/serial/pxa.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -534,6 +534,11 @@ serial_pxa_set_termios(struct uart_port *port, struct ktermios *termios, 




	serial_out(up, UART_IER, up->ier);

	serial_out(up, UART_IER, up->ier);





	if (termios->c_cflag & CRTSCTS)

		up->mcr |= UART_MCR_AFE;

	else

		up->mcr &= ~UART_MCR_AFE;



	serial_out(up, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */

	serial_out(up, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */

	serial_out(up, UART_DLL, quot & 0xff);		/* LS of divisor */

	serial_out(up, UART_DLL, quot & 0xff);		/* LS of divisor */

	serial_out(up, UART_DLM, quot >> 8);		/* MS of divisor */

	serial_out(up, UART_DLM, quot >> 8);		/* MS of divisor */