From b2ced4f69ea87399a37b4485280c52034a0161a8 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Tue, 19 Jan 2010 06:13:10 -0500 Subject: [PATCH] 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 Signed-off-by: Mike Frysinger Signed-off-by: Greg Kroah-Hartman --- drivers/serial/bfin_5xx.c | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 50abb7e557f4..15843cceb9fc 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -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