Re: MMC: Make the configuration memory resource optional

[Ian Molton]

Guennadi Liakhovetski wrote:

> While you're at it, please, consider swapping the two lines in 
> tmio_mmc_probe():
>
> -	tmio_mmc_clk_stop(host);
> 	reset(host);
> +	tmio_mmc_clk_stop(host);
>
> Otherwise, I think, reset causes problems trying to access the controller 
> with disabled clock. At least this is needed on SuperH.

Interesting. I'll see what the result of this is on TMIO - This sequence 
was garnered from the WinCE driver for the chip.

I cant see _why_ this should be a problem, as this disables the card 
clock, not HCLK. Could you debug further in tmio_mmc_clk_stop() please 
and see if reordering only one of the two IO accesses cures this?

Let me know what you find out.

-Ian
--
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/