Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Tue, 6 Jun 2017 13:12:02 +0200 | Subject | Re: [RFC PATCH 2/4] i2c: add docs to clarify DMA handling |
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Hi Wolfram,
On Tue, Jun 6, 2017 at 12:54 PM, Wolfram Sang <wsa@the-dreams.de> wrote: >> So it won't fall back to PIO if CONFIG_DMA_API_DEBUG is enabled? > > No, it will complain loudly with more details about the same things (and > some more). But for that to do, it cannot fall back to PIO. > > Otherwise, you might get the idea that all is fine since you enabled > CONFIG_DMA_API_DEBUG but miss that most of you transfers fell back to > PIO. That was my thinking...
Hmm....
I have it enabled all the time. So my devices may stop working...
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
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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