From: Haavard Skinnemoen Date: Fri, 6 Jun 2008 05:46:39 +0000 (-0700) Subject: atmel_serial: filter out FP during baud rate detection X-Git-Tag: v2.6.26-rc6~52 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c81c5c95c00c35a328e1757ca45a66647105f6c;p=linux-2.6 atmel_serial: filter out FP during baud rate detection I made a change to u-boot that used the FP (Fractional Part) field of BRGR to achieve more accurate baud rate generation. Unfortunately, the atmel_serial driver looks at the whole BRGR register when trying to detect the baud rate that the port is currently running at, so setting FP to a nonzero value breaks the baud rate detection. I'll sit on the u-boot patch for a while longer, but this is clearly a bug in the atmel_serial driver which should be fixed. Signed-off-by: Haavard Skinnemoen Acked-by: Andrew Victor Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index c065a704a9..42be8b01a4 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -1318,7 +1318,7 @@ static void __init atmel_console_get_options(struct uart_port *port, int *baud, * If the baud rate generator isn't running, the port wasn't * initialized by the boot loader. */ - quot = UART_GET_BRGR(port); + quot = UART_GET_BRGR(port) & ATMEL_US_CD; if (!quot) return;