Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
[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>
authored by
Bjorn Helgaas
and committed by
Linus Torvalds
11be00cb
8b378def
+11
-3
+11
-3
drivers/firmware/pcdp.c
+11
-3
drivers/firmware/pcdp.c
···
25
25
#ifdef CONFIG_SERIAL_8250_CONSOLE
26
26
int mmio;
27
27
static char options[64], *p = options;
28
+
char parity;
28
29
29
30
mmio = (uart->addr.address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY);
30
31
p += sprintf(p, "console=uart,%s,0x%lx",
31
32
mmio ? "mmio" : "io", uart->addr.address);
32
-
if (uart->baud)
33
+
if (uart->baud) {
33
34
p += sprintf(p, ",%lu", uart->baud);
34
-
if (uart->bits)
35
-
p += sprintf(p, "n%d", uart->bits);
35
+
if (uart->bits) {
36
+
switch (uart->parity) {
37
+
case 0x2: parity = 'e'; break;
38
+
case 0x3: parity = 'o'; break;
39
+
default: parity = 'n';
40
+
}
41
+
p += sprintf(p, "%c%d", parity, uart->bits);
42
+
}
43
+
}
36
44
37
45
return early_serial_console_init(options);
38
46
#else