linux-kernel - Re: [PATCH 1/3] dt-bindings: Add dt bindings for flex noc Performance Monitor

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Message-ID: <CAKfKVtHnnFbgmtpRJYS7V97SvZdipnhf7Pe1kOxPpJh+30bEFA@mail.gmail.com>
Date:   Fri, 6 Dec 2019 11:14:23 +0530
From:   Shubhrajyoti Datta <shubhrajyoti.datta@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, linux-doc@...r.kernel.org,
        corbet@....net, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
Subject: Re: [PATCH 1/3] dt-bindings: Add dt bindings for flex noc Performance Monitor

On Thu, Dec 5, 2019 at 11:47 PM Rob Herring <robh@...nel.org> wrote:
>
> On Mon, Nov 25, 2019 at 04:25:50PM +0530, shubhrajyoti.datta@...il.com wrote:
> > From: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
> >
> > Add dt bindings for flexnoc Performance Monitor.
> > The flexnoc counters for read and write response and requests are
> > supported.
> >
> > Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
> > ---
> > changes from RFC:
> > moved to schema / yaml
> >
> >  .../devicetree/bindings/perf/xlnx-flexnoc-pm.yaml  | 45 ++++++++++++++++++++++
> >  1 file changed, 45 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/perf/xlnx-flexnoc-pm.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/perf/xlnx-flexnoc-pm.yaml b/Documentation/devicetree/bindings/perf/xlnx-flexnoc-pm.yaml
> > new file mode 100644
> > index 0000000..bd0f345
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/perf/xlnx-flexnoc-pm.yaml
> > @@ -0,0 +1,45 @@
> > +# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
>
> () around the licenses.
>
> Are you good with GPL v10? Make it 'GPL-2.0-only' instead.
fixed in v2

>
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/perf/xlnx-flexnoc-pm.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Xilinx flexnoc Performance Monitor device tree bindings
> > +
> > +maintainers:
> > +  - Arnd Bergmann <arnd@...db.de>
> > +  - Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>
> This should be someone familar with this h/w (you).
>
fixed in v2
> > +
> > +properties:
> > +  compatible:
> > +    # Versal SoC based boards
> > +    items:
> > +      - enum:
> > +          - xlnx,flexnoc-pm-2.7
> > +
> > +  reg:
> > +    items:
> > +      - description: funnel registers
> > +      - description: baselpd registers
> > +      - description: basefpd registers
> > +
> > +  reg-names:
> > +    # The core schema enforces this is a string array
> > +    items:
> > +      - const: funnel
> > +      - const: baselpd
> > +      - const: basefpd
> > +
> > +required:
> > +  - compatible
> > +  - reg
>
> No point having 'reg-names' if not required.
this I am using to get the addresses.

>
>
> Add:
>
> additionalProperties: false

updated in v2.
>
> > +
> > +examples:
> > +  - |
> > +    performance-monitor@...20000 {
> > +        compatible = "xlnx,flexnoc-pm-2.7";
> > +        reg-names = "funnel", "baselpd", "basefpd";
> > +        reg = <0x0 0xf0920000 0x0 0x1000>,
> > +              <0x0 0xf0980000 0x0 0x9000>,
> > +              <0x0 0xf0b80000 0x0 0x9000>;
> > +    };
> > --
> > 2.1.1
> >