linux-kernel - Re: [RFC PATCH v2 1/2] drivers: misc: omap: add a new driver for ocp2scp

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Date:	Mon, 25 Jun 2012 15:24:50 +0300
From:	Felipe Balbi <balbi@...com>
To:	"ABRAHAM, KISHON VIJAY" <kishon@...com>
Cc:	Greg KH <gregkh@...uxfoundation.org>, grant.likely@...retlab.ca,
	rob.herring@...xeda.com, rob@...dley.net, linux@....linux.org.uk,
	arnd@...db.de, b-cousson@...com, rnayak@...com, tony@...mide.com,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	balbi@...com
Subject: Re: [RFC PATCH v2 1/2] drivers: misc: omap: add a new driver for
 ocp2scp

Hi,

On Mon, Jun 25, 2012 at 11:09:54AM +0530, ABRAHAM, KISHON VIJAY wrote:
> Hi Greg,
> 
> On Sat, Jun 23, 2012 at 10:14 AM, Greg KH <gregkh@...uxfoundation.org> wrote:
> > On Fri, Jun 22, 2012 at 06:45:41PM +0530, Kishon Vijay Abraham I wrote:
> >> Adds a new driver _ocp2scp_.
> >
> > That's not what you called this driver in the patch below :(
> >
> >> This driver takes the responsibility of creating
> >> all the devices that is connected to OCP2SCP. In the case of OMAP4, USB2PHY
> >> is connected to ocp2scp.
> >>
> >> This also includes device tree support for ocp2scp driver and
> >> the documentation with device tree binding information is updated.
> >
> > Can't this live where the scp drivers live?  Actually, where is that at?
> > Do we have scp drivers?
> AFAIK, there isn't any driver for scp. But we have a driver for ocp
> and it is present at arch/arm/mach-omap2/omap_l3_noc.c

I don't think this deserves a directory of its own. Maybe
drivers/platform/arm/omap/ ?? the l3_noc is an OMAP-specific
interconnect and the SCP bus is also an OMAP-specific bus. I don't know
of any other arch/soc who uses the same interconnect IP as OMAP and the
same ocp2scp bridge. That bridge was created by TI for all I know.

Greg, would drivers/platform/arm/omap/ work for you ? We could also move
the interconnect drivers there.

-- 
balbi

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