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

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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>

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Sonic Zhang 2007-11-21 17:00:32 +08:00 • committed by Bryan Wu

parent c051489df8

commit 759eb04090

1 changed files with 14 additions and 48 deletions

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drivers/serial/bfin_5xx.c

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