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Commit 4c195ad8 authored by Sonic Zhang's avatar Sonic Zhang Committed by Bryan Wu
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[Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop. 



Signed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarBryan Wu <bryan.wu@analog.com>
parent 99ee7b5f

drivers/serial/bfin_5xx.c

+0 −3
Original line number Diff line number Diff line
@@ -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);