serial: at91: make UART support dma and pdc transfers
authorElen Song <elen.song@atmel.com>
Mon, 22 Jul 2013 08:30:30 +0000 (16:30 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 29 Jul 2013 20:05:04 +0000 (13:05 -0700)
commit2e68c22fde9b001e41d47185a5b7612da60d8c33
tree758c095f1f23b3da35e0089fca62adec9ed9885b
parent055560b04a8cd063aea916fd083b7aec02c2adb8
serial: at91: make UART support dma and pdc transfers

Because the UART lack of receive timeout register, so we use a timer to trigger
data receive.
The DBGU is regarded as UART.

Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/atmel_serial.c