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Commit b7dfdea8 authored by Maarten Brock's avatar Maarten Brock Committed by Greg Kroah-Hartman
Browse files

sc16is7xx: implemented set_mctrl 



Add support for manual setting the modem control lines.

Signed-off-by: default avatarMaarten Brock <m.brock@vanmierlo.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent dd9b5588

drivers/tty/serial/sc16is7xx.c

+10 −2
Original line number Diff line number Diff line
@@ -761,12 +761,20 @@ static void sc16is7xx_reg_proc(struct kthread_work *ws) 
	memset(&one->config, 0, sizeof(one->config));

	spin_unlock_irqrestore(&one->port.lock, irqflags);



	if (config.flags & SC16IS7XX_RECONF_MD)

	if (config.flags & SC16IS7XX_RECONF_MD) {

		sc16is7xx_port_update(&one->port, SC16IS7XX_MCR_REG,

				      SC16IS7XX_MCR_LOOP_BIT,

				      (one->port.mctrl & TIOCM_LOOP) ?

				      SC16IS7XX_MCR_LOOP_BIT : 0);



		sc16is7xx_port_update(&one->port, SC16IS7XX_MCR_REG,

				      SC16IS7XX_MCR_RTS_BIT,

				      (one->port.mctrl & TIOCM_RTS) ?

				      SC16IS7XX_MCR_RTS_BIT : 0);

		sc16is7xx_port_update(&one->port, SC16IS7XX_MCR_REG,

				      SC16IS7XX_MCR_DTR_BIT,

				      (one->port.mctrl & TIOCM_DTR) ?

				      SC16IS7XX_MCR_DTR_BIT : 0);

	}

	if (config.flags & SC16IS7XX_RECONF_IER)

		sc16is7xx_port_update(&one->port, SC16IS7XX_IER_REG,

				      config.ier_clear, 0);