[PATCH v5 1/1] drivers:staging:pruss: add pruss staging mfd driver.
Greg KH
gregkh at suse.de
Tue Jul 5 22:00:49 EDT 2011
On Tue, Jul 05, 2011 at 01:43:03PM -0500, Watkins, Melissa wrote:
> On Tue, Jun 28, 2011 at 02:01:12PM -0700, Greg KH wrote:
> > On Tue, May 31, 2011 at 01:15:39PM +0530, Subhasish Ghosh wrote:
> > > > This patch adds the pruss MFD driver and associated include files.
> > > > For details regarding the PRUSS please refer the folowing link:
> > > > http://processors.wiki.ti.com/index.php/Programmable_Realtime_Unit_Subsystem
> > > >
> > > > The rational behind the MFD driver being the fact that multiple devices can
> > > > be implemented on the cores independently. This is determined by the nature
> > > > of the program which is loaded into the PRU's instruction memory.
> > > > A device may be de-initialized and another loaded or two different devices
> > > > can be run simultaneously on the two cores.
> > > > It's also possible, as in our case, to implement a single device on both
> > > > the PRU's resulting in improved load sharing.
> > > >
> > > > Signed-off-by: Subhasish Ghosh <subhasish at mistralsolutions.com>
> > >
>
> [MW] Greg, thanks for reviewing Mistral's patch submission. I have
> been following the traffic on their patches and will provide an
> initial response to address some of your questions.
>
> > > Please refresh my memory as to why this can't get merged into the
> > > "normal" part of the kernel?
>
> [MW] Arnd had recommended moving the driver to the staging area until
> all interfaces have stabilized. One of the main reasons it cannot
> currently be merged in the "normal" part of the kernel is the question
> of how firmware should be configured and loaded.
> (https://lkml.org/lkml/2011/5/24/230,
> https://lkml.org/lkml/2011/5/10/463)
>
> > Dropped from my queue due to lack of response :(
>
> > Please resend when you get the chance, and address the above comment in
> > your changelog entry (and in your TODO file as well.)
>
> [MW] Please let us know if Mistral still needs to resubmit their patch
> or if we can continue discussions on this submission.
Please resend it, with the above information in the changelog and in the
TODO file.
greg k-h
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