2010/3/30 Daniel Mack <daniel@xxxxxxxx>:
[...]
> @@ -1022,6 +1025,27 @@ static int if_sdio_probe(struct sdio_func *func,
> if (ret)
> goto disable;
>
> + /* For 1-bit transfers, we need to enable the interrupt flags in
> + * the CCCR register. Temporarily set the function number to 0
> + * for that. */
> + if ((host->caps & MMC_CAP_SDIO_IRQ) &&
> + (host->ios.bus_width == MMC_BUS_WIDTH_1)) {
> + unsigned int num = func->num;
> + u8 reg;
> +
> + func->num = 0;
> + reg = sdio_readb(func, SDIO_CCCR_IF, &ret);
> + if (ret)
> + goto release_int;
> +
> + reg |= SDIO_BUS_ECSI | SDIO_BUS_SCSI;
> + sdio_writeb(func, reg, SDIO_CCCR_IF, &ret);
> + if (ret)
> + goto release_int;
> +
> + func->num = num;
> + }
> +
> card->ioport = sdio_readb(func, IF_SDIO_IOPORT, &ret);
> if (ret)
> goto release_int;
You should probably just use mmc_io_rw_direct() in this case instead
of abusing func->num.
Best Regards,
Michał Mirosław
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