linux-kernel - Re: [PATCH 8/9] dt-bindings: Add Multi-Inno MI0283QT binding

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Message-ID: <20170123204342.duusbehci4uktlrh@rob-hp-laptop>
Date:   Mon, 23 Jan 2017 14:43:42 -0600
From:   Rob Herring <robh@...nel.org>
To:     Noralf Trønnes <noralf@...nnes.org>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        thomas.petazzoni@...e-electrons.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/9] dt-bindings: Add Multi-Inno MI0283QT binding

On Sun, Jan 22, 2017 at 07:11:16PM +0100, Noralf Trønnes wrote:
> Add device-tree binding documentation for the MI0283QT display panel.
> 
> Signed-off-by: Noralf Trønnes <noralf@...nnes.org>
> ---
> 
> Datasheet: https://cdn-shop.adafruit.com/datasheets/MI0283QT-11+V1.1.PDF
> 
> 
>  .../bindings/display/multi-inno,mi0283qt.txt       | 27 ++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt b/Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
> new file mode 100644
> index 0000000..eed48c3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
> @@ -0,0 +1,27 @@
> +Multi-Inno MI0283QT display panel
> +
> +Required properties:
> +- compatible:	"multi-inno,mi0283qt".
> +
> +The node for this driver must be a child node of a SPI controller, hence
> +all mandatory properties described in ../spi/spi-bus.txt must be specified.
> +
> +Optional properties:
> +- dc-gpios:	D/C pin. The presence/absence of this GPIO determines
> +		the panel interface mode (IM[3:0] pins):
> +		- present: IM=x110 4-wire 8-bit data serial interface
> +		- absent:  IM=x101 3-wire 9-bit data serial interface
> +- reset-gpios:	Reset pin
> +- power-supply:	A regulator node for the supply voltage.
> +- backlight:	phandle of the backlight device attached to the panel
> +- rotation:	panel rotation in degrees counter clockwise (0,90,180,270)

This isn't a standard property, but probably should be. Please document 
in a common spot.

> +
> +Example:
> +	mi0283qt@0{
> +		compatible = "multi-inno,mi0283qt";
> +		reg = <0>;
> +		spi-max-frequency = <32000000>;
> +		rotation = <90>;
> +		dc-gpios = <&gpio 25 0>;
> +		backlight = <&backlight>;
> +	};
> --
> 2.10.2
> 
> --
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