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[SERIAL] 8250: serial8250_port_size() - omap ports are larger

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A function to contain common code for the size of the resource we
need to allocate or free.  OMAP ports need 22 bytes rather than
the standard 8 bytes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2008-09-01 21:47:59 +01:00 committed by Russell King
parent 5668545a08
commit f2eda27d1c
1 changed files with 14 additions and 7 deletions
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21
drivers/serial/8250.c
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@ -2211,7 +2211,7 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
serial_outp(up, UART_EFR, efr);
}
#ifdef CONFIG_ARCH_OMAP15XX
#ifdef CONFIG_ARCH_OMAP
/* Workaround to enable 115200 baud on OMAP1510 internal ports */
if (cpu_is_omap1510() && is_omap_port(up)) {
if (baud == 115200) {
@ -2266,18 +2266,27 @@ serial8250_pm(struct uart_port *port, unsigned int state,
p->pm(port, state, oldstate);
}
static unsigned int serial8250_port_size(struct uart_8250_port *pt)
{
if (pt->port.iotype == UPIO_AU)
return 0x100000;
#ifdef CONFIG_ARCH_OMAP
if (is_omap_port(pt))
return 0x16 << pt->port.regshift;
#endif
return 8 << pt->port.regshift;
}
/*
* Resource handling.
*/
static int serial8250_request_std_resource(struct uart_8250_port *up)
{
unsigned int size = 8 << up->port.regshift;
unsigned int size = serial8250_port_size(up);
int ret = 0;
switch (up->port.iotype) {
case UPIO_AU:
size = 0x100000;
/* fall thru */
case UPIO_TSI:
case UPIO_MEM32:
case UPIO_MEM:
@ -2311,12 +2320,10 @@ static int serial8250_request_std_resource(struct uart_8250_port *up)
static void serial8250_release_std_resource(struct uart_8250_port *up)
{
unsigned int size = 8 << up->port.regshift;
unsigned int size = serial8250_port_size(up);
switch (up->port.iotype) {
case UPIO_AU:
size = 0x100000;
/* fall thru */
case UPIO_TSI:
case UPIO_MEM32:
case UPIO_MEM: