diff options
| -rw-r--r-- | drivers/serial/mpc52xx_uart.c | 3 | ||||
| -rw-r--r-- | drivers/serial/serial_core.c | 6 | ||||
| -rw-r--r-- | include/linux/serial_core.h | 3 |
3 files changed, 7 insertions, 5 deletions
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index 6459edc7f5c5..1b2cdc91c228 100644 --- a/drivers/serial/mpc52xx_uart.c +++ b/drivers/serial/mpc52xx_uart.c @@ -728,8 +728,7 @@ mpc52xx_uart_probe(struct platform_device *dev) spin_lock_init(&port->lock); port->uartclk = __res.bi_ipbfreq / 2; /* Look at CTLR doc */ - port->fifosize = 255; /* Should be 512 ! But it can't be */ - /* stored in a unsigned char */ + port->fifosize = 512; port->iotype = UPIO_MEM; port->flags = UPF_BOOT_AUTOCONF | ( uart_console(port) ? 0 : UPF_IOREMAP ); diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 17839e753e4c..3805f467b2f5 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -691,7 +691,8 @@ static int uart_set_info(struct uart_state *state, (new_serial.baud_base != port->uartclk / 16) || (close_delay != state->close_delay) || (closing_wait != state->closing_wait) || - (new_serial.xmit_fifo_size != port->fifosize) || + (new_serial.xmit_fifo_size && + new_serial.xmit_fifo_size != port->fifosize) || (((new_flags ^ old_flags) & ~UPF_USR_MASK) != 0)) goto exit; port->flags = ((port->flags & ~UPF_USR_MASK) | @@ -796,7 +797,8 @@ static int uart_set_info(struct uart_state *state, port->custom_divisor = new_serial.custom_divisor; state->close_delay = close_delay; state->closing_wait = closing_wait; - port->fifosize = new_serial.xmit_fifo_size; + if (new_serial.xmit_fifo_size) + port->fifosize = new_serial.xmit_fifo_size; if (state->info->tty) state->info->tty->low_latency = (port->flags & UPF_LOW_LATENCY) ? 1 : 0; diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index bd14858121ea..966e2e8a1740 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -214,10 +214,11 @@ struct uart_port { unsigned char __iomem *membase; /* read/write[bwl] */ unsigned int irq; /* irq number */ unsigned int uartclk; /* base uart clock */ - unsigned char fifosize; /* tx fifo size */ + unsigned int fifosize; /* tx fifo size */ unsigned char x_char; /* xon/xoff char */ unsigned char regshift; /* reg offset shift */ unsigned char iotype; /* io access style */ + unsigned char unused1; #define UPIO_PORT (0) #define UPIO_HUB6 (1) |