linux-kernel - Re: [PATCH v3 9/9] dt-bindings: serial: stm32: add phandle 'bluetooth' to fix dtbs

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Message-ID: <CAL9mu0LaWyhb0=CdJgrfq8v08P2cgKSx8g=u3MJU=dRQc8bThw@mail.gmail.com>
Date:   Fri, 19 Mar 2021 19:13:27 +0800
From:   dillon min <dillon.minfei@...il.com>
To:     Alexandre TORGUE <alexandre.torgue@...s.st.com>,
        rong.a.chen@...el.com
Cc:     Rob Herring <robh+dt@...nel.org>,
        Ahmad Fatoum <a.fatoum@...gutronix.de>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-stm32@...md-mailman.stormreply.com,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux@...linux.org.uk, Vladimir Murzin <vladimir.murzin@....com>,
        afzal.mohd.ma@...il.com, gregkh@...uxfoundation.org,
        erwan.leray@...com, erwan.leray@...s.st.com,
        linux-serial@...r.kernel.org, lkp@...el.com
Subject: Re: [PATCH v3 9/9] dt-bindings: serial: stm32: add phandle
 'bluetooth' to fix dtbs_check warrning

Hi Alexandre,

Thanks for the reply.

On Fri, Mar 19, 2021 at 4:38 PM Alexandre TORGUE
<alexandre.torgue@...s.st.com> wrote:
>
> Hi Dillon
>
> On 3/19/21 5:28 AM, dillon min wrote:
> > No changes, Just loop lkp in.
> >
> >
> > Hi lkp,
> >
> > Sorry for the late reply, thanks for your report.
> > This patch is to fix the build warning message.
> >
> > Thanks.
> > Regards
> >
> > On Mon, Mar 15, 2021 at 5:45 PM <dillon.minfei@...il.com> wrote:
> >>
> >> From: dillon min <dillon.minfei@...il.com>
> >>
> >> when run make dtbs_check with 'bluetoothi brcm,bcm43438-bt'
> >> dts enabled on stm32h7, there is a warrning popup:
> >>
> >>>> arch/arm/boot/dts/stm32h750i-art-pi.dt.yaml: serial@...04800: 'bluetooth'
> >>     does not match any of the regexes: 'pinctrl-[0-9]+'
> >>
> >> to make dtbs_check happy, so add a phandle bluetooth
> >>
> >> Fixes: 500cdb23d608 ("ARM: dts: stm32: Add STM32H743 MCU and STM32H743i-EVAL board")
> >> Signed-off-by: dillon min <dillon.minfei@...il.com>
> >> Reported-by: kernel test robot <lkp@...el.com>
> >> ---
> >>   Documentation/devicetree/bindings/serial/st,stm32-uart.yaml | 5 +++++
> >>   1 file changed, 5 insertions(+)
> >>
> >> diff --git a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
> >> index 8631678283f9..5e674840e62d 100644
> >> --- a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
> >> +++ b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
> >> @@ -50,6 +50,11 @@ properties:
> >>       minItems: 1
> >>       maxItems: 2
> >>
> >> +  bluetooth:
> >> +    type: object
> >> +    description: |
> >> +      phandles to the usart controller and bluetooth
> >> +
>
> Do we really need to add this "generic" property here ? You could test
> without the "AditionalProperties:False".
Yes, indeed. we have no reason to add a generic 'bluetooth' property
into specific soc's interface yaml.
I can't just remove "AditionalProperties:False", else make
O=../kernel-art/ dtbs dtbs_check will run into

/home/fmin/linux/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml:
'oneOf' conditional failed, one must be fixed:
'unevaluatedProperties' is a required property
'additionalProperties' is a required property
...

So , i will replace "AditionalProperties:False". with
unevaluatedProperties: false, do you agree with this?
If so, i will send patch v4 later.

Thanks.

Regards
>
> Regards
> Alex
>
>
> >>   # cts-gpios and rts-gpios properties can be used instead of 'uart-has-rtscts'
> >>   # or 'st,hw-flow-ctrl' (deprecated) for making use of any gpio pins for flow
> >>   # control instead of dedicated pins.
> >> --
> >> 1.9.1
> >>