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[SERIAL] serial_cs: Add quirk for brainboxes 2-port RS232 card

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Mauro Ziliani reports that this card has a higher clock rate.
Rather than tweak the 8250 driver to handle this, add a quirk to
pass the correct clock rate to the driver.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-09-16 23:07:46 +01:00 committed by Russell King
parent 20f130495c
commit f3d106881b
1 changed files with 20 additions and 0 deletions
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20
drivers/serial/serial_cs.c
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@ -85,6 +85,7 @@ struct serial_quirk {
unsigned int prodid;
int multi; /* 1 = multifunction, > 1 = # ports */
void (*config)(struct pcmcia_device *);
void (*setup)(struct pcmcia_device *, struct uart_port *);
void (*wakeup)(struct pcmcia_device *);
int (*post)(struct pcmcia_device *);
};
@ -108,6 +109,16 @@ struct serial_cfg_mem {
u_char buf[256];
};
/*
* vers_1 5.0, "Brain Boxes", "2-Port RS232 card", "r6"
* manfid 0x0160, 0x0104
* This card appears to have a 14.7456MHz clock.
*/
static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_port *port)
{
port->uartclk = 14745600;
}
static int quirk_post_ibm(struct pcmcia_device *link)
{
conf_reg_t reg = { 0, CS_READ, 0x800, 0 };
@ -192,6 +203,11 @@ static void quirk_config_socket(struct pcmcia_device *link)
static const struct serial_quirk quirks[] = {
{
.manfid = 0x0160,
.prodid = 0x0104,
.multi = -1,
.setup = quirk_setup_brainboxes_0104,
}, {
.manfid = MANFID_IBM,
.prodid = ~0,
.multi = -1,
@ -386,6 +402,10 @@ static int setup_serial(struct pcmcia_device *handle, struct serial_info * info,
port.dev = &handle_to_dev(handle);
if (buggy_uart)
port.flags |= UPF_BUGGY_UART;
if (info->quirk && info->quirk->setup)
info->quirk->setup(handle, &port);
line = serial8250_register_port(&port);
if (line < 0) {
printk(KERN_NOTICE "serial_cs: serial8250_register_port() at "