linux-kernel - [PATCH 06/12] [Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop.

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Date:	Wed, 30 Jan 2008 17:30:06 +0800
From:	Bryan Wu <bryan.wu@...log.com>
To:	linux-serial@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Sonic Zhang <sonic.zhang@...log.com>,
	Bryan Wu <bryan.wu@...log.com>
Subject: [PATCH 06/12] [Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop.

From: Sonic Zhang <sonic.zhang@...log.com>

Signed-off-by: Sonic Zhang <sonic.zhang@...log.com>
Signed-off-by: Bryan Wu <bryan.wu@...log.com>
---
 drivers/serial/bfin_5xx.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 0074146..ca9ceaa 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -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);
-- 
1.5.3.4
--
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