serial: sh-sci: using correct fifo size for SCIF and SCIFA ports.
Markus Pietrek [Thu, 14 Jan 2010 23:33:20 +0000 (08:33 +0900)]
The sh-sci driver used the wrong fifosize for PORT_SCIFA and PORT_SCIF
ports. If an incorrect size is used, the serial core will enforce an
early shutdown on the port, especially with baudrates < 9600.

Signed-off-by: Markus Pietrek <Markus.Pietrek@emtrion.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

drivers/serial/sh-sci.c

index 37f0de9..42f3333 100644 (file)
@@ -1052,7 +1052,18 @@ static void __devinit sci_init_single(struct platform_device *dev,
        sci_port->port.ops      = &sci_uart_ops;
        sci_port->port.iotype   = UPIO_MEM;
        sci_port->port.line     = index;
-       sci_port->port.fifosize = 1;
+
+       switch (p->type) {
+       case PORT_SCIFA:
+               sci_port->port.fifosize = 64;
+               break;
+       case PORT_SCIF:
+               sci_port->port.fifosize = 16;
+               break;
+       default:
+               sci_port->port.fifosize = 1;
+               break;
+       }
 
        if (dev) {
                sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL;