Re: [PATCH v1 09/10] staging: dsp: add support for Fortemedia FM34NE DSP

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On Wed, Feb 22, 2023 at 10:19:47AM +0200, Svyatoslav Ryhel wrote:
> вт, 21 лют. 2023 р. о 21:27 Greg Kroah-Hartman
> <gregkh@xxxxxxxxxxxxxxxxxxx> пише:
> >
> > On Tue, Feb 21, 2023 at 08:32:10PM +0200, Svyatoslav Ryhel wrote:
> > > FM34NE is digital sound processing chip used for active
> > > noise suppression mainly on ASUS Transformers.
> > >
> > > Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
> > > ---
> > >  drivers/staging/Kconfig          |   2 +
> > >  drivers/staging/Makefile         |   1 +
> > >  drivers/staging/dsp/Kconfig      |   7 +
> > >  drivers/staging/dsp/Makefile     |   2 +
> > >  drivers/staging/dsp/dsp-fm34ne.c | 364 +++++++++++++
> > >  drivers/staging/dsp/dsp-fm34ne.h | 845 +++++++++++++++++++++++++++++++
> > >  6 files changed, 1221 insertions(+)
> > >  create mode 100644 drivers/staging/dsp/Kconfig
> > >  create mode 100644 drivers/staging/dsp/Makefile
> > >  create mode 100644 drivers/staging/dsp/dsp-fm34ne.c
> > >  create mode 100644 drivers/staging/dsp/dsp-fm34ne.h
> >
> >
> > Sorry, but why is this going into drivers/staging/ at all?  What is
> > needed to be done to get this out of staging?  Why not do that work
> > right now?  At the least, we need a TODO file in the directory that
> > lists what needs to be done and who is responsible for it.
> 
> Because this driver sets up fm34 and switches it to bypass mode allowing
> sound to work on the device. There is no dsp framework in kernel which could
> be called to operate dsp from the actual sound codec. (If there is, I
> would be glad
> if you show me). Fm34 must be active only on DMIC use, all other cases require
> it to be in bypass.

That does not explain at all why this needs to go into drivers/staging/
and not the normal portion of the kernel.  Why this specific location?
What is wrong with it that requires it to go here?

In other words, you need to document _WHY_ it must go here as it is not
obvious at all.

thanks,

greg k-h



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