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| author | Sonic Zhang <sonic.zhang@analog.com> | 2008-10-13 10:33:33 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-13 09:51:38 -0700 |
| commit | 5ffdeea2f99ed9d46bf954c9fdc64da7da57e81b (patch) | |
| tree | 81ef34ea8bc7cefb8b5ef540ca53897b0dc3a91a | |
| parent | 08668ab7c2ca9bed281eb6763e5a8e15384b7fdc (diff) | |
| download | blackbird-op-linux-5ffdeea2f99ed9d46bf954c9fdc64da7da57e81b.tar.gz blackbird-op-linux-5ffdeea2f99ed9d46bf954c9fdc64da7da57e81b.zip | |
Blackfin Serial Driver: Fix bug - Don't call tx_stop in tx_transfer.
Disable irq and return immediately.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/serial/bfin_5xx.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 8d2d75706685..5e20f50342a9 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -301,7 +301,11 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart) bfin_serial_mctrl_check(uart); if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) { - bfin_serial_stop_tx(&uart->port); +#ifdef CONFIG_BF54x + /* Clear TFI bit */ + UART_PUT_LSR(uart, TFI); +#endif + UART_CLEAR_IER(uart, ETBEI); return; } |
