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[Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop.

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Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Sonic Zhang 2007-12-23 23:18:08 +08:00 committed by Bryan Wu
parent 99ee7b5f3a
commit 4c195ad88b
1 changed files with 0 additions and 3 deletions
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3
drivers/serial/bfin_5xx.c
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@ -95,9 +95,6 @@ static void bfin_serial_stop_tx(struct uart_port *port)
disable_dma(uart->tx_dma_channel);
#else
#ifdef CONFIG_BF54x
/* Waiting for Transmission Finished */
while (!(UART_GET_LSR(uart) & TFI))
continue;
/* Clear TFI bit */
UART_PUT_LSR(uart, TFI);
UART_CLEAR_IER(uart, ETBEI);