From 11be00cba6be114f861123cfc6779f195a615d22 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Thu, 28 Jul 2005 01:07:39 -0700
Subject: [PATCH] [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>
---
drivers/firmware/pcdp.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c
index 53c95c0bbf465..ae1fb45dbb40d 100644
--- a/drivers/firmware/pcdp.c
+++ b/drivers/firmware/pcdp.c
@@ -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
--
2.30.2