Re: [PATCH 4/6] i2c: busses: add SLIMpro I2C device driver on APM X-Gene platform

[Feng Kan]

On Thu, Jan 29, 2015 at 10:11 PM, Wolfram Sang <wsa@xxxxxxxxxxxxx> wrote:
>
>> > ctx->dev is probably the wrong device here. The i2c controller is not
>> > DMA capable itself, you need to have a pointer to the device that actually
>> > performs the DMA here.
>>
>> Arnd, I do agree this may not be the best identification. There is no
>> representation for this on the Linux side. I could put it as NULL. However,
>> there are other i2c bus drivers that seem to do the same thing. Please
>> let me know what you think.
>
> For completeness: Those drivers need fixing!
I have some doubts. I could hack up a dts node for the helper
processor that is doing the dma. However, the dma master could be
anything for that matter. I am not sure how I can write this in a
generic manner.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/