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Date:   Wed, 30 May 2018 23:02:11 -0500
From:   Rob Herring <robh@kernel.org>
To:     Maciej Purski <m.purski@samsung.com>
Cc:     linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org,
        dri-devel@lists.freedesktop.org, David Airlie <airlied@linux.ie>,
        Mark Rutland <mark.rutland@arm.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        Kukjin Kim <kgene@kernel.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Archit Taneja <architt@codeaurora.org>,
        Andrzej Hajda <a.hajda@samsung.com>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        Inki Dae <inki.dae@samsung.com>,
        Joonyoung Shim <jy0922.shim@samsung.com>,
        Seung-Woo Kim <sw0312.kim@samsung.com>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: Re: [PATCH v2 07/10] dt-bindings: tc358754: add DT bindings
Message-ID: <20180531040211.GA23051@rob-hp-laptop>
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On Wed, May 30, 2018 at 02:15:58PM +0200, Maciej Purski wrote:
> From: Andrzej Hajda <a.hajda@samsung.com>
> 
> The patch adds bindings to Toshiba DSI/LVDS bridge TC358764.
> Bindings describe power supplies, reset gpio and video interfaces.
> 
> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
> Signed-off-by: Maciej Purski <m.purski@samsung.com>
> ---
>  .../bindings/display/bridge/toshiba,tc358764.txt   | 37 ++++++++++++++++++++++
>  1 file changed, 37 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/toshiba,tc358764.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358764.txt b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358764.txt
> new file mode 100644
> index 0000000..6eda14f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358764.txt
> @@ -0,0 +1,37 @@
> +TC358764 MIPI-DSI to LVDS panel bridge
> +
> +Required properties:
> +  - compatible: "toshiba,tc358764"
> +  - reg: the virtual channel number of a DSI peripheral
> +  - vddc-supply: core voltage supply, 1.2V
> +  - vddio-supply: I/O voltage supply, 1.8V or 3.3V
> +  - vddlvds-supply: LVDS1/2 voltage supply, 3.3V
> +  - reset-gpios: a GPIO spec for the reset pin
> +
> +The device node can contain zero to two 'port' child nodes, each with one

How would 0 ports be valid?

> +child 'endpoint' node, according to the bindings defined in [1].
> +The following are properties specific to those nodes.
> +
> +port:
> +  - reg: (required) can be 0 for DSI port or 1 for LVDS port;
> +
> +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
> +
> +Example:
> +
> +	bridge@0 {
> +		reg = <0>;
> +		compatible = "toshiba,tc358764";
> +		vddc-supply = <&vcc_1v2_reg>;
> +		vddio-supply = <&vcc_1v8_reg>;
> +		vddlvds-supply = <&vcc_3v3_reg>;
> +		reset-gpios = <&gpd1 6 GPIO_ACTIVE_LOW>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		port@1 {
> +			reg = <1>;
> +			lvds_ep: endpoint {
> +				remote-endpoint = <&panel_ep>;
> +			};
> +		};
> +	};
> -- 
> 2.7.4
>