Re: [PATCH v3 6a/7] dt-bindings: Add ANX6345 DP/eDP transmitter binding

From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Torsten Duwe <duwe@lst.de>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Andrzej Hajda <a.hajda@samsung.com>, Chen-Yu Tsai <wens@csie.org>,
	Rob Herring <robh+dt@kernel.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Daniel Vetter <daniel@ffwll.ch>, Harald Geyer <harald@ccbib.org>,
	Sean Paul <seanpaul@chromium.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-arm-kernel@lists.infradead.org,
	Icenowy Zheng <icenowy@aosc.io>
Subject: Re: [PATCH v3 6a/7] dt-bindings: Add ANX6345 DP/eDP transmitter binding
Date: Fri, 26 Jul 2019 18:36:01 +0200	[thread overview]
Message-ID: <20190726163601.o32bxqew5xavjgyi@flea> (raw)
In-Reply-To: <20190725151829.DC20968B02@verein.lst.de>

Hi,

On Thu, Jul 25, 2019 at 05:18:29PM +0200, Torsten Duwe wrote:
> The anx6345 is an ultra-low power DisplayPort/eDP transmitter designed
> for portable devices.
>
> Add a binding document for it.
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Torsten Duwe <duwe@suse.de>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> ---
>  .../devicetree/bindings/display/bridge/anx6345.yaml |   90 ++++++++++
>  1 file changed, 90 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/anx6345.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/anx6345.yaml b/Documentation/devicetree/bindings/display/bridge/anx6345.yaml
> new file mode 100644
> index 000000000000..0af092d101c5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/anx6345.yaml
> @@ -0,0 +1,90 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/anx6345.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analogix ANX6345 eDP Transmitter Device Tree Bindings
> +
> +maintainers:
> +  - Torsten Duwe <duwe@lst.de>
> +
> +description: |
> +  The ANX6345 is an ultra-low power Full-HD eDP transmitter designed for
> +  portable devices.
> +
> +properties:
> +  compatible:
> +    const: analogix,anx6345
> +
> +  reg:
> +    maxItems: 1
> +    description: I2C address of the device
> +
> +  reset-gpios:
> +    maxItems: 1
> +    description: active low GPIO to use for reset
> +
> +  dvdd12-supply:
> +    maxItems: 1
> +    description: Regulator for 1.2V digital core power.
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +
> +  dvdd25-supply:
> +    maxItems: 1
> +    description: Regulator for 2.5V digital core power.
> +    $ref: /schemas/types.yaml#/definitions/phandle

There's no need to specify the type here, all the properties ending in
-supply are already checked for that type

> +  ports:
> +    type: object
> +    minItems: 1
> +    maxItems: 2
> +    description: |
> +      Video port 0 for LVTTL input,
> +      Video port 1 for eDP output (panel or connector)
> +      using the DT bindings defined in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt

You should probably describe the port@0 and port@1 nodes here as
well. It would allow you to express that the port 0 is mandatory and
the port 1 optional, which got dropped in the conversion.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel