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[PATCH] PCDP: if PCDP contains parity information, use it 

If the PCDP supplies parity, use it (only none/even/odd supported), and
don't append parity/stop bit arguments unless baud is present.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Bjorn Helgaas 2005-07-28 01:07:39 -07:00 committed by Linus Torvalds
parent 8b378def5a
commit 11be00cba6
1 changed files with 11 additions and 3 deletions
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14
drivers/firmware/pcdp.c
View File

@ -25,14 +25,22 @@ setup_serial_console(struct pcdp_uart *uart)
#ifdef CONFIG_SERIAL_8250_CONSOLE
int mmio;
static char options[64], *p = options;
char parity;
mmio = (uart->addr.address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY);
p += sprintf(p, "console=uart,%s,0x%lx",
mmio ? "mmio" : "io", uart->addr.address);
if (uart->baud)
if (uart->baud) {
p += sprintf(p, ",%lu", uart->baud);
if (uart->bits)
p += sprintf(p, "n%d", uart->bits);
if (uart->bits) {
switch (uart->parity) {
case 0x2: parity = 'e'; break;
case 0x3: parity = 'o'; break;
default: parity = 'n';
}
p += sprintf(p, "%c%d", parity, uart->bits);
}
}
return early_serial_console_init(options);
#else