Re: [PATCH v2 1/2] usb: musb: cppi41: Add new functions for platform driver

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* Alexandre Bailon <abailon@xxxxxxxxxxxx> [170118 06:54]:
> On 01/18/2017 12:29 AM, Tony Lindgren wrote:
> > * Alexandre Bailon <abailon@xxxxxxxxxxxx> [170117 05:16]:
> >> Currently, the CPPI 4.1 driver is not completely generic and
> >> only work on dsps.
> >> Add two functions which will help to move platform code from CPPI 4.1 to
> >> MUSB glue driver:
> >> - cppi41_register_dma_callback() to register a platform dma_callback
> >>   (e.g to acknowledge interrupt on DMA completion).
> >> - cppi41_dma_controller_to_musb() to convert a dma_controller pointer to
> >>   a musb pointer. This is required to get a musb pointer from DMA callbacks.
> > 
> > Can't you just add a new function to struct dma_controller in musb_dma.h?
> Yes, I can add the dma_callback function to dma_controller and then
> remove cppi41_register_dma_callback().

OK

> But I still to define cppi41_dma_controller_to_musb() except if I add a
> musb pointer to dma_controller.

Yeah makes sense to me. Or get it from the hw_ep that already has it?

Regards,

Tony
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