linux-kernel - Re: [PATCH 1/2] dt-bindings: input: touchscreen: Add ilitek 9882T touchscreen chip

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Message-ID: <CAHwB_NLHsbxayS+Y9au7WqBM6rXdnoqUdemNFqBCmaLVkiTr9Q@mail.gmail.com>
Date:   Mon, 5 Jun 2023 14:03:13 +0800
From:   cong yang <yangcong5@...qin.corp-partner.google.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, dmitry.torokhov@...il.com, jikos@...nel.org,
        benjamin.tissoires@...hat.com, dianders@...omium.org,
        hsinyi@...gle.com, linux-input@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: input: touchscreen: Add ilitek 9882T
 touchscreen chip

Hi,Krzysztof,
   Thanks for Krzysztof.Sorry, I didn't run `make dt_binding_check. I
will check before sending V2 patch.

On Fri, Jun 2, 2023 at 10:19 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 02/06/2023 16:09, Cong Yang wrote:
> > Add an ilitek touch screen chip ili9882t.
> >
> > Signed-off-by: Cong Yang <yangcong5@...qin.corp-partner.google.com>
>
> It does not look like you tested the bindings, at least after quick
> look. Please run `make dt_binding_check` (see
> Documentation/devicetree/bindings/writing-schema.rst for instructions).
> Maybe you need to update your dtschema and yamllint.
>
> There is no way this would work and if you test you will see error msg.
> Feel free to ping if message is unclear.
>
> > ---
> >  .../bindings/input/elan,ekth6915.yaml         | 36 ++++++++++++++-----
> >  1 file changed, 27 insertions(+), 9 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/input/elan,ekth6915.yaml b/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
> > index 05e6f2df604c..73e94cb6c4e0 100644
> > --- a/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
> > +++ b/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
> > @@ -15,11 +15,15 @@ description:
> >
> >  properties:
> >    compatible:
> > -    items:
> > -      - const: elan,ekth6915
> > +    oneOf:
>
> It's not oneOf. Just enum

Done,thanks.

>
> > +      - enum:
> > +        - elan,ekth6915
> > +        - ilitek,ili9882t
> >
> >    reg:
> > -    const: 0x10
> > +    enum:
> > +      - 0x10
> > +      - 0x41
> >
> >    interrupts:
> >      maxItems: 1
> > @@ -29,17 +33,31 @@ properties:
> >
> >    vcc33-supply:
> >      description: The 3.3V supply to the touchscreen.
> > +                 If using ili9882t then this supply will not be needed.
>
> Are you sure these are compatible devices then? What does it mean "not
> needed"? Is the pin there or is not?

Yes,ili9882t this touch ic not needed 3.3V supply,this pin does not exist.

>
> >
> >    vccio-supply:
> >      description:
> >        The IO supply to the touchscreen. Need not be specified if this is the
> >        same as the 3.3V supply.
> > -
> > -required:
> > -  - compatible
> > -  - reg
> > -  - interrupts
> > -  - vcc33-supply
> > +      If using ili9882t, the IO supply is required.
> > +
> > +  required:
>
> NAK. Really. Test patches before sending.
>
> Best regards,
> Krzysztof
>