diff options
| author |   Sonic Zhang <sonic.zhang@analog.com> | 2008-02-02 17:05:02 +0800 |
|---|---|---|
| committer |   Bryan Wu <cooloney@kernel.org> | 2008-02-02 17:05:02 +0800 |
| commit | db288381e26e592b11572ce8199bedeadf0c0830 (patch) | |
| tree | e10eaa7b1a5b0bfefecd9417be43d12f5e82e006 /drivers/serial/bfin_5xx.c | |
| parent | [Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as well (diff) | |
| download | linux-dev-db288381e26e592b11572ce8199bedeadf0c0830.tar.xz linux-dev-db288381e26e592b11572ce8199bedeadf0c0830.zip | |
[Blackfin] serial driver: Add flow control support to bf54x
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'drivers/serial/bfin_5xx.c')
| -rw-r--r-- | drivers/serial/bfin_5xx.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index af866ab3f5a1..69ac7007682e 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -579,7 +579,11 @@ static unsigned int bfin_serial_get_mctrl(struct uart_port *port) if (uart->cts_pin < 0) return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; +# ifdef BF54x + if (UART_GET_MSR(uart) & CTS) +# else if (gpio_get_value(uart->cts_pin)) +# endif return TIOCM_DSR | TIOCM_CAR; else #endif @@ -594,9 +598,17 @@ static void bfin_serial_set_mctrl(struct uart_port *port, unsigned int mctrl) return; if (mctrl & TIOCM_RTS) +# ifdef BF54x + UART_PUT_MCR(uart, UART_GET_MCR(uart) & ~MRTS); +# else gpio_set_value(uart->rts_pin, 0); +# endif else +# ifdef BF54x + UART_PUT_MCR(uart, UART_GET_MCR(uart) | MRTS); +# else gpio_set_value(uart->rts_pin, 1); +# endif #endif } |