diff options
| author | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-06-06 09:46:39 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-06-06 22:29:12 +0400 |
| commit | 9c81c5c95c00c35a328e1757ca45a66647105f6c (patch) | |
| tree | 1854f2b91e64a3a7bd7f5b1c7f8d52a8ee75204c /drivers/serial | |
| parent | 81c6ce9bd3ed3a88caeb9ed97d874450d53339dc (diff) | |
| download | linux-9c81c5c95c00c35a328e1757ca45a66647105f6c.tar.xz | |
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 <haavard.skinnemoen@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/atmel_serial.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index c065a704a93a..42be8b01a40f 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; |