tree 91a18e28643ff6112a7a4f7ee4468487c6b664a7
parent c051489df8b027238ff22d64d4e01ede3ad77dd5
author Sonic Zhang <sonic.zhang@analog.com> 1195635632 +0800
committer Bryan Wu <cooloney@kernel.org> 1195635632 +0800

Blackfin Serial driver: Fix bug - serial driver in PIO mode cant handle input very quickly

Output as many bytes as possible in PIO tx handler.
This reduce the number of tx interrupts and shorten the delay to handle
rx interrupt. So, rx overrun disappears.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>