[PATCH v3 2/2] serial: fsl_lpuart: add DMA support

[Arnd Bergmann]

On Thursday 16 January 2014, Yao Yuan wrote:
> > This part will result in a slight increase in data size even if dma
> > support is turned off at compile time.
> > 
> 
> Yes, someone also want me define a independent struct for dma and allocate the memory when dma be use.
> But I think this way will add a more memory access time, like a->b->c and a->c. And the variable 
> about dma is just a few bytes but used frequently. So I think I'd better define the variable about dma in lpuart_port struct.

I agree. Just leave it unconditionally in here to make the code simpler.

	Arnd