Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Tue, 9 Nov 2021 10:09:46 +0100
From:   Niklas =?iso-8859-1?Q?S=F6derlund?= 
        <niklas.soderlund+renesas@ragnatech.se>
To:     Geert Uytterhoeven <geert@linux-m68k.org>
Cc:     Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
        Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Rob Herring <robh+dt@kernel.org>
Subject: Re: [PATCH 0/9] arm64: dts: renesas: Thermal binding validation
Message-ID: <YYo62jdzSTxqCMtk@oden.dyn.berto.se>
References: <20211104224033.3997504-1-kieran.bingham+renesas@ideasonboard.com>
 <CAMuHMdXVBj58ZM3LqCN3cudsE3VJV8AQC5OCOJP96RaqYf4NDQ@mail.gmail.com>
 <YYo0syH9m/CYlB2d@oden.dyn.berto.se>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <YYo0syH9m/CYlB2d@oden.dyn.berto.se>
Precedence: bulk

On 2021-11-09 09:43:33 +0100, Niklas S?derlund wrote:
> > > linux/arch/arm64/boot/dts/renesas/r8a77951-ulcb-kf.dt.yaml: 
> > > thermal-zones: sensor3-thermal:cooling-maps:map0:contribution:0:0: 
> > > 1024 is greater than the maximum of 100
> > >         From schema: Documentation/devicetree/bindings/thermal/thermal-zones.yaml
> > >
> > > This validation error appears to be pervasive across all of these
> > > bindings, but changing that will be more invasive and require someone to
> > > perform dedicated testing with the thermal drivers to ensure that the
> > > updates to the ranges do not cause unexpected side effects.
> > 
> > Niklas?
> 
> I will have a look. The thermal driver is the one driver where I have 
> automated CI test running.

So the core of the issue is that the definition of the property changed 
in the txt to yaml conversion. The original definition was,

  Optional property:
  - contribution:         The cooling contribution to the thermal zone of the
    Type: unsigned        referred cooling device at the referred trip point.
    Size: one cell        The contribution is a ratio of the sum
			    of all cooling contributions within a thermal zone.

While the  new binding states,

  contribution:
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0
    maximum: 100 
    description:
      The percentage contribution of the cooling devices at the 
      specific trip temperature referenced in this map 
      to this thermal zone

Looking at the real world usage of this only 2 out of 17 platforms sets 
a contribution value less or equal to 100. I will send a patch to fix 
the bindings.

-- 
Kind Regards,
Niklas S?derlund