linux-kernel - Re: [PATCH 2/3] dt-bindings: Add Logic PD Type 28 display panel

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Message-ID: <20190921190708.GB32133@ravnborg.org>
Date:   Sat, 21 Sep 2019 21:07:08 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Adam Ford <aford173@...il.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-omap@...r.kernel.org,
        adam.ford@...icpd.com, Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: Add Logic PD Type 28 display panel

Hi Adam.

Good with even more panels.
But for new bindings please use meta-schema (.yaml) format.
This is what we use for new bindings as it allows better
validation.

	Sam

On Tue, Sep 17, 2019 at 11:12:12AM -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@...il.com>
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/logicpd,type28.txt b/Documentation/devicetree/bindings/display/panel/logicpd,type28.txt
> new file mode 100644
> index 000000000000..829fc5210e06
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/logicpd,type28.txt
> @@ -0,0 +1,26 @@
> +Logic PD Type 28 4.3" WQVGA TFT LCD panel
> +
> +This binding is compatible with the simple-panel binding, which is specified
> +in simple-panel.txt in this directory.
> +
> +Required properties:
> +- compatible: should be "logicpd,type28"
> +
> +Optional properties:
> +- power-supply: regulator to provide the supply voltage
> +- enable-gpios: GPIO pin to enable or disable the panel
> +- backlight: phandle of the backlight device attached to the panel
Is it correct that these are optional for the descrivbed panel?

> +
> +Optional nodes:
> +- Video port for RGB input.
> +
> +Example:
> +	lcd0: display {
> +		compatible = "logicpd,type28";
> +		enable-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>;
> +		port {
> +			lcd_in: endpoint {
> +				remote-endpoint = <&dpi_out>;
> +			};
> +		};
> +	};
> -- 
> 2.17.1