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| author | David S. Miller <davem@davemloft.net> | 2012-08-22 14:21:38 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-22 14:21:38 -0700 |
| commit | 1304a7343b30fc4f16045412efdbb4179a3d9255 (patch) | |
| tree | 83d667ac4f62e30f70305ce4cc7e030e3465f92e /drivers/tty/serial/mxs-auart.c | |
| parent | 1d76efe1577b4323609b1bcbfafa8b731eda071a (diff) | |
| parent | 23dcfa61bac244e1200ff9ad19c6e9144dcb6bb5 (diff) | |
| download | lwn-1304a7343b30fc4f16045412efdbb4179a3d9255.tar.gz lwn-1304a7343b30fc4f16045412efdbb4179a3d9255.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/tty/serial/mxs-auart.c')
| -rw-r--r-- | drivers/tty/serial/mxs-auart.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 2e341b81ff89..3a667eed63d6 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -73,6 +73,7 @@ #define AUART_CTRL0_CLKGATE (1 << 30) #define AUART_CTRL2_CTSEN (1 << 15) +#define AUART_CTRL2_RTSEN (1 << 14) #define AUART_CTRL2_RTS (1 << 11) #define AUART_CTRL2_RXE (1 << 9) #define AUART_CTRL2_TXE (1 << 8) @@ -259,9 +260,12 @@ static void mxs_auart_set_mctrl(struct uart_port *u, unsigned mctrl) u32 ctrl = readl(u->membase + AUART_CTRL2); - ctrl &= ~AUART_CTRL2_RTS; - if (mctrl & TIOCM_RTS) - ctrl |= AUART_CTRL2_RTS; + ctrl &= ~AUART_CTRL2_RTSEN; + if (mctrl & TIOCM_RTS) { + if (u->state->port.flags & ASYNC_CTS_FLOW) + ctrl |= AUART_CTRL2_RTSEN; + } + s->ctrl = mctrl; writel(ctrl, u->membase + AUART_CTRL2); } @@ -359,9 +363,9 @@ static void mxs_auart_settermios(struct uart_port *u, /* figure out the hardware flow control settings */ if (cflag & CRTSCTS) - ctrl2 |= AUART_CTRL2_CTSEN; + ctrl2 |= AUART_CTRL2_CTSEN | AUART_CTRL2_RTSEN; else - ctrl2 &= ~AUART_CTRL2_CTSEN; + ctrl2 &= ~(AUART_CTRL2_CTSEN | AUART_CTRL2_RTSEN); /* set baud rate */ baud = uart_get_baud_rate(u, termios, old, 0, u->uartclk); |