Blackfin Serial Driver: Fix bug - Don't call tx_stop in tx_transfer.

5ffdeea2 · Sonic Zhang <[email protected]> · 2008-10-13 10:33:33 +01:00

Disable irq and return immediately.

Signed-off-by: Sonic Zhang <[email protected]>
Signed-off-by: Bryan Wu <[email protected]>
Signed-off-by: Alan Cox <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Commit: 5ffdeea2f99ed9d46bf954c9fdc64da7da57e81b
Parents: 08668ab7

Changes

1 files changed · +5 −1

File	Status	Add	Del	Content
drivers/serial/bfin_5xx.c	modified	+5	−1	View file

drivers/serial/bfin_5xx.c

View file

diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 8d2d757..5e20f50 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;
 	}
 