linux-kernel - Re: [PATCH v8 1/3] dt-bindings: Add support for samsung s6e3ha2 panel binding

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Date:   Wed, 11 Jan 2017 08:43:36 +0100
From:   Andrzej Hajda <a.hajda@...sung.com>
To:     Hoegeun Kwon <hoegeun.kwon@...sung.com>, krzk@...nel.org,
        robh@...nel.org, thierry.reding@...il.com, airlied@...ux.ie,
        kgene@...nel.org
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        inki.dae@...sung.com, cw00.choi@...sung.com,
        jh80.chung@...sung.com, andi.shyti@...sung.com,
        Donghwa Lee <dh09.lee@...sung.com>,
        Hyungwon Hwang <human.hwang@...sung.com>
Subject: Re: [PATCH v8 1/3] dt-bindings: Add support for samsung s6e3ha2 panel
 binding

On 11.01.2017 07:33, Hoegeun Kwon wrote:
> The Samsung s6e3ha2 is a 5.7" 1440x2560 AMOLED panel connected
> using MIPI-DSI interfaces.
>
> Signed-off-by: Donghwa Lee <dh09.lee@...sung.com>
> Signed-off-by: Hyungwon Hwang <human.hwang@...sung.com>
> Signed-off-by: Hoegeun Kwon <hoegeun.kwon@...sung.com>
> Tested-by: Chanwoo Choi <cw00.choi@...sung.com>
> Reviewed-by: Andrzej Hajda <a.hajda@...sung.com>
> ---
>  .../bindings/display/panel/samsung,s6e3ha2.txt     | 26 ++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt
>
> diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt
> new file mode 100644
> index 0000000..3e7892c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt
> @@ -0,0 +1,26 @@
> +Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel
> +
> +Required properties:
> +  - compatible: "samsung,s6e3ha2"
> +  - reg: the virtual channel number of a DSI peripheral
> +  - vdd3-supply: I/O voltage supply
> +  - vci-supply: voltage supply for analog circuits
> +  - reset-gpios: a GPIO spec for the reset pin (active low)
> +  - enable-gpios: a GPIO spec for the panel enable pin (active high)
> +  - te-gpios: a GPIO spec for the tearing effect synchronization signal
> +    gpio pin (active high)

One more thing I didn't catch earlier, te-gpios property should be
optional - in case of hw-trigger we do not need it.

Regards
Andrzej

> +
> +Example:
> +&dsi {
> +	...
> +
> +	panel@0 {
> +		compatible = "samsung,s6e3ha2";
> +		reg = <0>;
> +		vdd3-supply = <&ldo27_reg>;
> +		vci-supply = <&ldo28_reg>;
> +		reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>;
> +		enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>;
> +		te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>;
> +	};
> +};