diff options
| author | David S. Miller <davem@davemloft.net> | 2005-05-11 14:34:32 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-05-11 14:34:32 -0400 |
| commit | e4fdee8e3b41239242a8f421a28736ef8e08ca55 (patch) | |
| tree | d2040221acc9fbd2f24f7670d0edfaba425d376c /drivers/serial/sunsab.h | |
| parent | 88d7bd8cb9eb8d64bf7997600b0d64f7834047c5 (diff) | |
[SUNSAB]: Defer register updates until transmitter is idle.
The chip can emit garbage characters if we touch the
settings while characters are going out.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/serial/sunsab.h')
| -rw-r--r-- | drivers/serial/sunsab.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/serial/sunsab.h b/drivers/serial/sunsab.h index 686086fcbbf5..b78e1f7b8050 100644 --- a/drivers/serial/sunsab.h +++ b/drivers/serial/sunsab.h | |||
| @@ -126,6 +126,7 @@ union sab82532_irq_status { | |||
| 126 | /* irqflags bits */ | 126 | /* irqflags bits */ |
| 127 | #define SAB82532_ALLS 0x00000001 | 127 | #define SAB82532_ALLS 0x00000001 |
| 128 | #define SAB82532_XPR 0x00000002 | 128 | #define SAB82532_XPR 0x00000002 |
| 129 | #define SAB82532_REGS_PENDING 0x00000004 | ||
| 129 | 130 | ||
| 130 | /* RFIFO Status Byte */ | 131 | /* RFIFO Status Byte */ |
| 131 | #define SAB82532_RSTAT_PE 0x80 | 132 | #define SAB82532_RSTAT_PE 0x80 |