Re: [PATCH 2/3] dt-bindings: mfd: atmel-usart: add DMA bindings for SPI mode

[Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>]

Hi Rob,

On 21/11/2018 10:41:01-0600, Rob Herring wrote:
> > +Optional properties in serial and SPI mode:
> > +- dma bindings for dma transfer:
> > +       - dmas: DMA specifier, consisting of a phandle to DMA controller node,
> > +               memory peripheral interface and USART DMA channel ID, FIFO configuration.
> > +               Refer to dma.txt and atmel-dma.txt for details.
> > +       - dma-names: "rx" for RX channel, "tx" for TX channel.
> 
> > +               dma-names = "tx", "rx";
> 
> The dma-names should have a defined order.
> 

Why is that? Isn't the purpose of names to get rid of any particular
ordering?


-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com