diff options
author | Magnus Damm <damm@opensource.se> | 2012-05-02 12:47:18 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-02 21:08:07 (GMT) |
commit | e8155629ff19e05722ba057d1521baec270d780e (patch) | |
tree | d800fc07d2b2c8eaaee42e8d88e30f61ea7593ca /drivers/tty/serial/8250/8250.c | |
parent | 28bf4cf22dcd936f93dd6063696b1accdc1d5207 (diff) | |
download | linux-fsl-qoriq-e8155629ff19e05722ba057d1521baec270d780e.tar.xz |
serial8250: Clean up default map and dl code
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>
Diffstat (limited to 'drivers/tty/serial/8250/8250.c')
-rw-r--r-- | drivers/tty/serial/8250/8250.c | 38 |
1 files changed, 12 insertions, 26 deletions
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index cc398b1..662188d 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -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: |