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From:   Adam Ford <aford173@gmail.com>
Date:   Wed, 16 Oct 2019 09:55:11 -0500
Message-ID: <CAHCN7xJhHHoia_o4rb0VgvCP71X94Pvem684F2quMijNNpNxVA@mail.gmail.com>
Subject: Re: [PATCH V5 2/3] dt-bindings: Add Logic PD Type 28 display panel
To:     Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc:     dri-devel <dri-devel@lists.freedesktop.org>,
        Linux-OMAP <linux-omap@vger.kernel.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        Sam Ravnborg <sam@ravnborg.org>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Sebastian Reichel <sebastian.reichel@collabora.com>,
        Tomi Valkeinen <tomi.valkeinen@ti.com>,
        devicetree <devicetree@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Wed, Oct 16, 2019 at 9:40 AM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Adam,
>
> Thank you for the patch.
>
> On Wed, Oct 16, 2019 at 08:51:46AM -0500, Adam Ford wrote:
> > This patch adds documentation of device tree bindings for the WVGA panel
> > Logic PD Type 28 display.
> >
> > Signed-off-by: Adam Ford <aford173@gmail.com>
> > ---
> > V5:  Replace GPIO_ACTIVE_HIGH with 0 to fix make dt_binding_check -k
> > V4:  Update per Rob H's suggestions and copy other panel yaml example from 5.4-rc1
> > V3:  Correct build errors from 'make dt_binding_check'
> > V2:  Use YAML instead of TXT for binding
> >
> > diff --git a/Documentation/devicetree/bindings/display/panel/logicpd,type28.yaml b/Documentation/devicetree/bindings/display/panel/logicpd,type28.yaml
> > new file mode 100644
> > index 000000000000..2834287b8d88
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/display/panel/logicpd,type28.yaml
> > @@ -0,0 +1,42 @@
> > +# SPDX-License-Identifier: GPL-2.0
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/display/panel/logicpd,type28.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Logic PD Type 28 4.3" WQVGA TFT LCD panel
> > +
> > +maintainers:
> > +  - Adam Ford <aford173@gmail.com>
> > +
> > +allOf:
> > +  - $ref: panel-common.yaml#
> > +
> > +properties:
> > +  compatible:
> > +    const: logicpd,type28
> > +
> > +  power-supply: true
> > +  enable-gpios: true
> > +  backlight: true
> > +  port: true
> > +
> > +required:
> > +  - compatible
>
> Should the port be required too ? Apart from that,

I supposed that's true, but I used ampire,am-480272h3tmqw-t01h.yaml as
the example, and it doesn't list it as a required item.
Is there anything else I need to address?  I feel like I'm trying to
hit a moving target.

adam
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    lcd0: display {
> > +      compatible = "logicpd,type28";
> > +      enable-gpios = <&gpio5 27 0>;
> > +      backlight = <&backlight>;
> > +      port {
> > +        lcd_in: endpoint {
> > +          remote-endpoint = <&dpi_out>;
> > +        };
> > +      };
> > +    };
> > +
> > +...
>
> --
> Regards,
>
> Laurent Pinchart