linux-kernel - Re: [PATCH v3 1/2] dt-bindings: display: Add Sharp LQ150X1LG11 panel binding

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Message-ID: <20161003184645.GA23584@rob-hp-laptop>
Date:   Mon, 3 Oct 2016 13:46:45 -0500
From:   Rob Herring <robh@...nel.org>
To:     Peter Rosin <peda@...ntia.se>
Cc:     open list <linux-kernel@...r.kernel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        Gustaf Lindström <gl@...ntia.se>
Subject: Re: [PATCH v3 1/2] dt-bindings: display: Add Sharp LQ150X1LG11 panel
 binding

On Tue, Sep 27, 2016 at 12:27:11AM +0200, Peter Rosin wrote:
> The Sharp 15" LQ150X1LG11 panel is an XGA TFT LCD panel.
> 
> Signed-off-by: Peter Rosin <peda@...ntia.se>
> ---
>  .../bindings/display/panel/sharp,lq150x1lg11.txt   | 36 ++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/sharp,lq150x1lg11.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/sharp,lq150x1lg11.txt b/Documentation/devicetree/bindings/display/panel/sharp,lq150x1lg11.txt
> new file mode 100644
> index 000000000000..715ff7e332f2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/sharp,lq150x1lg11.txt
> @@ -0,0 +1,36 @@
> +Sharp 15" LQ150X1LG11 XGA TFT LCD panel
> +
> +Required properties:
> +- compatible: should be "sharp,lq150x1lg11"
> +- power-supply: regulator to provide the VCC supply voltage (3.3 volts)

Should be named according to the input, so vcc-supply.

> +
> +Optional properties:
> +- backlight: phandle of the backlight device
> +- rlud-gpios: a single GPIO for the RL/UD (rotate 180 degrees) pin.
> +- lvds-gpios: a single GPIO for the SELLVDS pin.

Why not sellvds-gpios?

> +
> +If lrud-gpios and/or ldvs-gpios are not specified, the RL/UD and/or SELLVDS

typos...

> +pins are assumed to be handled appropriately by the hardware.
> +
> +Example:
> +
> +	backlight: backlight {
> +		compatible = "pwm-backlight";
> +		pwms = <&pwm 0 100000>;                      /* VBR */
> +
> +		brightness-levels = <0 20 40 60 80 100>;
> +		default-brightness-level = <2>;
> +
> +		power-supply = <&vdd_12v_reg>;               /* VDD */
> +		enable-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;  /* XSTABY */
> +	};
> +
> +	panel {
> +		compatible = "sharp,lq150x1lg11";
> +
> +		power-supply = <&vcc_3v3_reg>;               /* VCC */
> +
> +		backlight = <&backlight>;
> +		rlud-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;    /* RL/UD */
> +		lvds-gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;    /* SELLVDS */
> +	};
> -- 
> 2.1.4
> 
> --
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