Re: [PATCH v3 1/2] doc: Add bindings document for Xilinx LogiCore PR Decoupler
From: Moritz Fischer
Date: Fri Mar 24 2017 - 11:23:54 EST
On Fri, Mar 24, 2017 at 09:59:08AM -0500, Rob Herring wrote:
> On Fri, Mar 17, 2017 at 01:11:12PM -0700, Moritz Fischer wrote:
> > This adds the binding documentation for the Xilinx LogiCORE PR
> > Decoupler soft core.
> >
> > Signed-off-by: Moritz Fischer <mdf@xxxxxxxxxx>
> > Cc: Michal Simek <michal.simek@xxxxxxxxxx>
> > Cc: Sören Brinkmann <soren.brinkmann@xxxxxxxxxx>
> > Cc: linux-kernel@xxxxxxxxxxxxxxx
> > Cc: devicetree@xxxxxxxxxxxxxxx
> > ---
> >
> > Changes from v2:
> > - Added refence to generic fpga-region bindings
> > - Fixed up reg property in example
> > - Added fallback to "xlnx,pr-decoupler" without version
> >
> > Changes from v1:
> > - Added clock names & clock to example
> > - Merged some of the description from Michal's version
> >
> > ---
> > .../bindings/fpga/xilinx-pr-decoupler.txt | 35 ++++++++++++++++++++++
> > 1 file changed, 35 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
> >
> > diff --git a/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
> > new file mode 100644
> > index 0000000..16141bd
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
> > @@ -0,0 +1,35 @@
> > +Xilinx LogiCORE Partial Reconfig Decoupler Softcore
> > +
> > +The Xilinx LogiCORE Partial Reconfig Decoupler manages one or more
> > +decouplers / fpga bridges.
> > +The controller can decouple/disable the bridges which prevents signal
> > +changes from passing through the bridge. The controller can also
> > +couple / enable the bridges which allows traffic to pass through the
> > +bridge normally.
> > +
> > +The Driver supports only MMIO handling. A PR region can have multiple
> > +PR Decouples which can bhe handled independently or chaines via decouple/
>
> s/chaines/chains/
Fixed in v4.
> > +decouple_status signals.
> > +
> > +Required properties:
> > +- compatible : Should contain "xlnx,pr-decoupler-1.00"
> > +- regs : base address and size for decoupler module
> > +- clocks : input clock to IP
> > +- clock-names : should contain "aclk"
> > +
> > +Optional properties:
> > +- bridge-enable : 0 if driver should disable bridge at startup
> > + 1 if driver should enable bridge at startup
> > + Default is to leave bridge in current state.
>
> This is common and should move into a common doc. Maybe fpga-region.txt
> works?
Ok will add patch for that to v5 series.
Thanks for your feedback,
Moritz