[U-Boot] [PATCH] SPI: Fix 32 bit transfers in mxc_spi.c

[Magnus Lilja <lilja.magnus@gmail.com>]

Hi

Guennadi Liakhovetski skrev:
>>>> Hm, I'm afraid, I broke more than just that. Now that I look at this loop,
>>>> looks like I broke not only 32-bit transfers, but also all transfers with
>>>> bitlen > 16, and this fix is then incomplete - it doesn't fix cases with
>>>> bitlen > 32. Magnus, looks like you also only use single-block (bitlen=32)
>>>> transfers? Do you have a chance to test > 32-bit transfers too?
>>> No, I don't have anything suitable on the SPI bus that would allow me
>>> to test > 32-bit transfer.
>>
>> So, what was the verdict? I can only test SPI with the ATLAS (32 bit xfers).
>>
>> Can the patch be accepted even though it doesn't fix all problems or 
>> does it have to a "fix-everything"-patch?
> 
> I would prefer a proper fix, or an explicit restriction on transfer 
> length.

In that case it will be the latter, explicit restriction on transfer length with a printf and returning an error code from spi_xfer.

Regards, Magnus