[PATCH linux dev-4.17 3/7] mmc: Aspeed: Add Aspeed sdhci core driver

[Benjamin Herrenschmidt]

On Thu, 2018-07-26 at 11:26 +0800, Ryan Chen wrote:
> > 
> > 
> 
> Yes, there is two way, to handle irq.
> One is use share irq, so my sdhci driver have following outcome when share 
> irq, 
>         cat /proc/interrupt
>         ----------
>         34:         82      AVIC  26 Edge      mmc0, mmc1
>         ---------
> when use cascaded interrupt. 
>         .........
>         292:         35  sdhci-ic   0 Edge      mmc0
>         293:         42  sdhci-ic   1 Edge      mmc1
>         ---------
> use separate slot (actually it is) interrupt, it have advantage for each slot 
> debug. if use share. the debug will not easy.

I see ... well, you can then continue doing a cascaded controller if
you wish then. I sitll don't think you need to have separate drivers
however, but that's up to you.

You definitely don't want to use core initcalls. Also having a single
driver might make it easier to implement the card detect stuff which is
done by the "common" part, isn't it ?

Cheers,
Ben.