From 11be00cba6be114f861123cfc6779f195a615d22 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- 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 53c95c0bbf46..ae1fb45dbb40 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 -- 2.20.1