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serial: bfin_5xx: remove useless gpio handling with hard flow control 

For UARTs that have dedicated hardware flow control support, there will be
no gpios to request/free as they are part of the normal peripheral pins.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Sonic Zhang 2010-01-19 06:13:10 -05:00 committed by Greg Kroah-Hartman
parent ca1cce49c2
commit b2ced4f69e
1 changed files with 1 additions and 15 deletions
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16
drivers/serial/bfin_5xx.c
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@ -746,15 +746,6 @@ static int bfin_serial_startup(struct uart_port *port)
Status interrupt.\n");
}
if (uart->cts_pin >= 0) {
gpio_request(uart->cts_pin, DRIVER_NAME);
gpio_direction_output(uart->cts_pin, 1);
}
if (uart->rts_pin >= 0) {
gpio_request(uart->rts_pin, DRIVER_NAME);
gpio_direction_output(uart->rts_pin, 0);
}
/* CTS RTS PINs are negative assertive. */
UART_PUT_MCR(uart, ACTS);
UART_SET_IER(uart, EDSSI);
@ -801,10 +792,6 @@ static void bfin_serial_shutdown(struct uart_port *port)
gpio_free(uart->rts_pin);
#endif
#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
if (uart->cts_pin >= 0)
gpio_free(uart->cts_pin);
if (uart->rts_pin >= 0)
gpio_free(uart->rts_pin);
if (UART_GET_IER(uart) && EDSSI)
free_irq(uart->status_irq, uart);
#endif
@ -1409,8 +1396,7 @@ static int bfin_serial_remove(struct platform_device *dev)
continue;
uart_remove_one_port(&bfin_serial_reg, &bfin_serial_ports[i].port);
bfin_serial_ports[i].port.dev = NULL;
#if defined(CONFIG_SERIAL_BFIN_CTSRTS) || \
defined(CONFIG_SERIAL_BFIN_HARD_CTSRTS)
#if defined(CONFIG_SERIAL_BFIN_CTSRTS)
gpio_free(bfin_serial_ports[i].cts_pin);
gpio_free(bfin_serial_ports[i].rts_pin);
#endif