Hi Wolfram,
On Wed, Dec 10, 2014 at 2:21 PM, Wolfram Sang <wsa@xxxxxxxxxxxxx> wrote:
> Okay, here is my take on solving the problem found by Geert. I still don't like
> it much but it is not as bad as I expected it to be ;) Let me know what you
> think.
Thanks, it's indeed less ugly than I would have expected ;-)
Note that in spi-rspi.c and spi-sh-msiof, any error returned by *_request_dma()
is considered an error, and -EPROBE_DEFER is not handled specially.
So it won't retry if the DMA engine driver isn't available, but just use PIO
(until unbind/bind).
Now we have a nice sample implementation, perhaps I should port it to
spi-rspi and spi-sh-msiof, too?
Let's wait and see for other comments...
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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