Re: [PATCH 2/3] dt-bindings: display: panel: Add panels based on ILITEK ILI9806E

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Hello Rob,

thanks for reviewing.

On Wed, 19 Jul 2023 13:02:54 -0600
Rob Herring <robh@xxxxxxxxxx> wrote:

> On Wed, Jul 19, 2023 at 05:21:46PM +0200, Luca Ceresoli wrote:
> > Add bindings for LCD panels based on the ILITEK ILI9806E RGB controller
> > connected over SPI and the "ShenZhen New Display Co NDS040480800-V3"
> > 480x800 panel based on it.
> > 
> > Signed-off-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
> > ---
> >  .../display/panel/ilitek,ili9806e.yaml        | 69 +++++++++++++++++++
> >  MAINTAINERS                                   |  6 ++
> >  2 files changed, 75 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/display/panel/ilitek,ili9806e.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9806e.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9806e.yaml
> > new file mode 100644
> > index 000000000000..42abc6923065
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9806e.yaml
> > @@ -0,0 +1,69 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/display/panel/ilitek,ili9806e.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Ilitek ILI9806E display panels
> > +
> > +maintainers:
> > +  - Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
> > +
> > +description:
> > +  This binding is for display panels using an Ilitek ILI9806E controller in
> > +  SPI mode.
> > +
> > +allOf:
> > +  - $ref: panel-common.yaml#  
> 
> A SPI device should reference spi-peripheral-props.yaml as well.
> 
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - enum:
> > +          # ShenZhen New Display Co 3.97" 480x800 RGB a-SI TFT LCD
> > +          - newdisplay,nds040480800-v3
> > +      - const: ilitek,ili9806e
> > +
> > +  reg: true  
> 
> maxItems: 1
> 
> > +  spi-max-frequency: true
> > +  reset-gpios: true
> > +  backlight: true
> > +  port: true  
> 
> Drop all these and ...
> 
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - port
> > +
> > +additionalProperties: false  
> 
> ... use "unevaluatedProperties" instead.
> 
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/gpio/gpio.h>
> > +
> > +    backlight: backlight {
> > +        compatible = "gpio-backlight";
> > +        gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
> > +    };  
> 
> The exact backlight is outside the scope of this binding and should be 
> dropped from the example.

As this comes from copy-pasting from the bindings yaml for another
panel, would it be useful if I send a patch to remove it?

Requested changes queued for v2.

Luca

-- 
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com



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