Re: [PATCH 1/3] at91_mci: Enable MMC_CAP_SDIO_IRQ only when it actuallyworks

[Nicolas Ferre]

Pierre Ossman :
> On Thu, 17 Jul 2008 11:34:07 +0200
> Nicolas Ferre <nicolas.ferre@xxxxxxxxx> wrote:
>
> > According to the datasheets AT91SAM9261 does not support
> > SDIO interrupts, and AT91SAM9260/9263 have an erratum
> > requiring 4bit mode while using slot B for the interrupt
> > to work.
> >
> > Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
> > ---
>
> Not all SDIO cards use 4-bit mode, so it looks to me like you have to
> disable it completely (unless there's a third revision where it works
> without any fine print?).

Well, I understand.

In your opinion, a printed warning that says to be sure to use only 
4-bit mode SDIO cards on slot B... is not acceptable ?

It kind of disappoints me to remove this feature as the 
at91sam9260ek/9xe/9g20 board uses only slot B, and I really like to 
connect SDIO with IRQ on it.

Regards,
--
Nicolas Ferre

--
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/