tree 129f9bfc890149e11ddcf163f0e6851e9db5791f
parent f4b1f03b826ba22c9835e9e89a1ca03541313e04
author Huang Shijie <b32955@freescale.com> 1353053033 +0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1353069766 -0800

serial: mxs-auart: add the DMA support for mx28

Only we meet the following conditions, we can enable the DMA support for
auart:

  (1) We enable the DMA support in the dts file, such as
      arch/arm/boot/dts/imx28.dtsi.

  (2) We enable the hardware flow control.

  (3) We use the mx28, not the mx23. Due to hardware bug(see errata: 2836),
      we can not add the DMA support to mx23.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>