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serial8250: Clean up default map and dl code

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Get rid of unused functions and macros now when
Alchemy and RM9K are converted over to callbacks.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Magnus Damm 2012-05-02 21:47:18 +09:00 committed by Greg Kroah-Hartman
parent 28bf4cf22d
commit e8155629ff
1 changed files with 12 additions and 26 deletions
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38
drivers/tty/serial/8250/8250.c
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@ -285,28 +285,18 @@ static const struct serial8250_config uart_config[] = {
};
/* Uart divisor latch read */
static int default_dl_read(struct uart_8250_port *up)
static int default_serial_dl_read(struct uart_8250_port *up)
{
return serial_in(up, UART_DLL) | serial_in(up, UART_DLM) << 8;
}
/* Uart divisor latch write */
static void default_dl_write(struct uart_8250_port *up, int value)
static void default_serial_dl_write(struct uart_8250_port *up, int value)
{
serial_out(up, UART_DLL, value & 0xff);
serial_out(up, UART_DLM, value >> 8 & 0xff);
}
static int _serial_dl_read(struct uart_8250_port *up)
{
return default_dl_read(up);
}
static void _serial_dl_write(struct uart_8250_port *up, int value)
{
default_dl_write(up, value);
}
#ifdef CONFIG_MIPS_ALCHEMY
/* Au1x00 UART hardware has a weird register layout */
@ -403,57 +393,53 @@ static void rm9k_serial_dl_write(struct uart_8250_port *up, int value)
#endif
/* sane hardware needs no mapping */
#define map_8250_in_reg(up, offset) (offset)
#define map_8250_out_reg(up, offset) (offset)
static unsigned int hub6_serial_in(struct uart_port *p, int offset)
{
offset = map_8250_in_reg(p, offset) << p->regshift;
offset = offset << p->regshift;
outb(p->hub6 - 1 + offset, p->iobase);
return inb(p->iobase + 1);
}
static void hub6_serial_out(struct uart_port *p, int offset, int value)
{
offset = map_8250_out_reg(p, offset) << p->regshift;
offset = offset << p->regshift;
outb(p->hub6 - 1 + offset, p->iobase);
outb(value, p->iobase + 1);
}
static unsigned int mem_serial_in(struct uart_port *p, int offset)
{
offset = map_8250_in_reg(p, offset) << p->regshift;
offset = offset << p->regshift;
return readb(p->membase + offset);
}
static void mem_serial_out(struct uart_port *p, int offset, int value)
{
offset = map_8250_out_reg(p, offset) << p->regshift;
offset = offset << p->regshift;
writeb(value, p->membase + offset);
}
static void mem32_serial_out(struct uart_port *p, int offset, int value)
{
offset = map_8250_out_reg(p, offset) << p->regshift;
offset = offset << p->regshift;
writel(value, p->membase + offset);
}
static unsigned int mem32_serial_in(struct uart_port *p, int offset)
{
offset = map_8250_in_reg(p, offset) << p->regshift;
offset = offset << p->regshift;
return readl(p->membase + offset);
}
static unsigned int io_serial_in(struct uart_port *p, int offset)
{
offset = map_8250_in_reg(p, offset) << p->regshift;
offset = offset << p->regshift;
return inb(p->iobase + offset);
}
static void io_serial_out(struct uart_port *p, int offset, int value)
{
offset = map_8250_out_reg(p, offset) << p->regshift;
offset = offset << p->regshift;
outb(value, p->iobase + offset);
}
@ -464,8 +450,8 @@ static void set_io_from_upio(struct uart_port *p)
struct uart_8250_port *up =
container_of(p, struct uart_8250_port, port);
up->dl_read = _serial_dl_read;
up->dl_write = _serial_dl_write;
up->dl_read = default_serial_dl_read;
up->dl_write = default_serial_dl_write;
switch (p->iotype) {
case UPIO_HUB6: