linux-kernel - Re: [PATCH] dt-bindings: timer: renesas: ostm: Convert to json-schema

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Date:   Tue, 28 Apr 2020 04:31:04 +0200
From:   Niklas Söderlund 
        <niklas.soderlund@...natech.se>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Chris Brandt <chris.brandt@...esas.com>,
        devicetree@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: timer: renesas: ostm: Convert to json-schema

Hi (again) Geert,

On 2020-04-28 04:29:05 +0200, Niklas Söderlund wrote:
> Hi Geert,
> 
> Thanks for your patch.
> 
> On 2020-04-27 21:32:24 +0200, Geert Uytterhoeven wrote:
> > Convert the Renesas OS Timer (OSTM) Device Tree binding documentation to
> > json-schema.
> > 
> > Document missing properties.
> > 
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> 
> Reviewed-by: Niklas Söderlund <niklas.soderlund@...natech.se>

Sometimes I type quicker then I think (which is not such a difficult 
taks), that should have been.

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>

> 
> > ---
> > For a clean dtbs_check, this depends on "[PATCH] ARM: dts: r7s9210: Remove
> > bogus clock-names from OSTM nodes"
> > (https://lore.kernel.org/r/20200427192932.28967-1-geert+renesas@glider.be)
> > which I intend to queue as a fix for v5.7.
> > 
> >  .../bindings/timer/renesas,ostm.txt           | 31 ----------
> >  .../bindings/timer/renesas,ostm.yaml          | 59 +++++++++++++++++++
> >  2 files changed, 59 insertions(+), 31 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/timer/renesas,ostm.txt
> >  create mode 100644 Documentation/devicetree/bindings/timer/renesas,ostm.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/timer/renesas,ostm.txt b/Documentation/devicetree/bindings/timer/renesas,ostm.txt
> > deleted file mode 100644
> > index 81a78f8bcf170a82..0000000000000000
> > --- a/Documentation/devicetree/bindings/timer/renesas,ostm.txt
> > +++ /dev/null
> > @@ -1,31 +0,0 @@
> > -* Renesas OS Timer (OSTM)
> > -
> > -The OSTM is a multi-channel 32-bit timer/counter with fixed clock
> > -source that can operate in either interval count down timer or free-running
> > -compare match mode.
> > -
> > -Channels are independent from each other.
> > -
> > -Required Properties:
> > -
> > -  - compatible: must be one or more of the following:
> > -    - "renesas,r7s72100-ostm" for the R7S72100 (RZ/A1) OSTM
> > -    - "renesas,r7s9210-ostm" for the R7S9210 (RZ/A2) OSTM
> > -    - "renesas,ostm" for any OSTM
> > -		This is a fallback for the above renesas,*-ostm entries
> > -
> > -  - reg: base address and length of the register block for a timer channel.
> > -
> > -  - interrupts: interrupt specifier for the timer channel.
> > -
> > -  - clocks: clock specifier for the timer channel.
> > -
> > -Example: R7S72100 (RZ/A1H) OSTM node
> > -
> > -	ostm0: timer@...ec000 {
> > -		compatible = "renesas,r7s72100-ostm", "renesas,ostm";
> > -		reg = <0xfcfec000 0x30>;
> > -		interrupts = <GIC_SPI 102 IRQ_TYPE_EDGE_RISING>;
> > -		clocks = <&mstp5_clks R7S72100_CLK_OSTM0>;
> > -		power-domains = <&cpg_clocks>;
> > -	};
> > diff --git a/Documentation/devicetree/bindings/timer/renesas,ostm.yaml b/Documentation/devicetree/bindings/timer/renesas,ostm.yaml
> > new file mode 100644
> > index 0000000000000000..600d47ab7d58570f
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/timer/renesas,ostm.yaml
> > @@ -0,0 +1,59 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/timer/renesas,ostm.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Renesas OS Timer (OSTM)
> > +
> > +maintainers:
> > +  - Chris Brandt <chris.brandt@...esas.com>
> > +  - Geert Uytterhoeven <geert+renesas@...der.be>
> > +
> > +description:
> > +  The OSTM is a multi-channel 32-bit timer/counter with fixed clock source that
> > +  can operate in either interval count down timer or free-running compare match
> > +  mode.
> > +
> > +  Channels are independent from each other.
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - enum:
> > +          - renesas,r7s72100-ostm # RZ/A1H
> > +          - renesas,r7s9210-ostm  # RZ/A2M
> > +      - const: renesas,ostm       # Generic
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 1
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - clocks
> > +  - power-domains
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/clock/r7s72100-clock.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    ostm0: timer@...ec000 {
> > +            compatible = "renesas,r7s72100-ostm", "renesas,ostm";
> > +            reg = <0xfcfec000 0x30>;
> > +            interrupts = <GIC_SPI 102 IRQ_TYPE_EDGE_RISING>;
> > +            clocks = <&mstp5_clks R7S72100_CLK_OSTM0>;
> > +            power-domains = <&cpg_clocks>;
> > +    };
> > -- 
> > 2.17.1
> > 
> 
> -- 
> Regards,
> Niklas Söderlund

-- 
Regards,
Niklas Söderlund