Blackfin Serial Driver: annotate anomalies 05000215 and 05000099
authorSonic Zhang <sonic.zhang@analog.com>
Thu, 11 Jun 2009 12:45:07 +0000 (13:45 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 11 Jun 2009 15:51:04 +0000 (08:51 -0700)
commit0efa4f2c944fabffc81918cc86d4d17dba39a021
treed5d2c07d6177eb04555b4a6483db9aaea1d434f1
parent35ff69357949cfff5c3d8e3038b77146872e3bd3
Blackfin Serial Driver: annotate anomalies 05000215 and 05000099

Add some comments for how these anomalies are addressed:

05000215 - UART TX Interrupt Masked Erroneously
We always clear ETBEI within last UART TX interrupt to end
a string.  It is always set when starting a new tx transfer.

05000099 - UART Line Status Register (UART_LSR) Bits Are Not Updated at
the Same Time
This anomaly affects driver only in POLL code where multi bits of
UART_LSR are checked. It doesn't affect current bfin_5xx.c driver.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/serial/bfin_5xx.c