A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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serial/imx: disable hardware flow control at startup

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We only want to enable hardware flow control if RTS/CTS pins
are connected.

Signed-off-by: Lucas Stach <[email protected]>
Signed-off-by: Markus Pargmann <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Lucas Stach 2013-05-30 15:47:04 +02:00 • committed by Greg Kroah-Hartman
commit bff09b099b
1 changed files with 2 additions and 0 deletions
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2
drivers/tty/serial/imx.c
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@ -761,6 +761,8 @@ static int imx_startup(struct uart_port *port)
temp = readl(sport->port.membase + UCR2);
temp |= (UCR2_RXEN | UCR2_TXEN);
if (!sport->have_rtscts)
temp |= UCR2_IRTS;
writel(temp, sport->port.membase + UCR2);
if (USE_IRDA(sport)) {