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Message-ID: <20200323220905.GA17573@bogus>
Date: Mon, 23 Mar 2020 16:09:05 -0600
From: Rob Herring <robh@...nel.org>
To: Phong LE <ple@...libre.com>
Cc: narmstrong@...libre.com, airlied@...ux.ie, daniel@...ll.ch,
mark.rutland@....com, a.hajda@...sung.com,
Laurent.pinchart@...asonboard.com, jonas@...boo.se,
jernej.skrabec@...l.net, sam@...nborg.org, mripard@...nel.org,
heiko.stuebner@...obroma-systems.com, linus.walleij@...aro.org,
stephan@...hold.net, icenowy@...c.io, broonie@...nel.org,
mchehab+samsung@...nel.org, davem@...emloft.net,
gregkh@...uxfoundation.org, Jonathan.Cameron@...wei.com,
andriy.shevchenko@...ux.intel.com, dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/4] dt-bindings: display: bridge: add it66121 bindings
On Wed, Mar 11, 2020 at 01:51:33PM +0100, Phong LE wrote:
> Add the ITE bridge HDMI it66121 bindings.
>
> Signed-off-by: Phong LE <ple@...libre.com>
> ---
> .../bindings/display/bridge/ite,it66121.yaml | 98 +++++++++++++++++++
> 1 file changed, 98 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
> new file mode 100644
> index 000000000000..1717e880d130
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
> @@ -0,0 +1,98 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/ite,it66121.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ITE it66121 HDMI bridge Device Tree Bindings
> +
> +maintainers:
> + - Phong LE <ple@...libre.com>
> + - Neil Armstrong <narmstrong@...libre.com>
> +
> +description: |
> + The IT66121 is a high-performance and low-power single channel HDMI
> + transmitter, fully compliant with HDMI 1.3a, HDCP 1.2 and backward compatible
> + to DVI 1.0 specifications.
> +
> +properties:
> + compatible:
> + const: ite,it66121
> +
> + reg:
> + maxItems: 1
> + description: base I2C address of the device
> +
> + reset-gpios:
> + maxItems: 1
> + description: GPIO connected to active low reset
> +
> + vrf12-supply:
> + maxItems: 1
Drop this. Supplies are always a single item.
> + description: Regulator for 1.2V analog core power.
> +
> + vcn33-supply:
> + maxItems: 1
> + description: Regulator for 3.3V digital core power.
> +
> + vcn18-supply:
> + maxItems: 1
> + description: Regulator for 1.8V IO core power.
> +
> + interrupts:
> + maxItems: 1
> +
> + pclk-dual-edge:
> + maxItems: 1
Not a valid property if this is boolean.
> + description: enable pclk dual edge mode.
> +
> + port:
You should have an output port to a connector node.
> + type: object
> +
> + properties:
> + endpoint:
> + type: object
> + description: |
> + Input endpoints of the bridge.
> +
> + required:
> + - endpoint
> +
> +required:
> + - compatible
> + - reg
> + - reset-gpios
> + - vrf12-supply
> + - vcn33-supply
> + - vcn18-supply
> + - interrupts
> + - port
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + i2c6 {
i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + it66121hdmitx: it66121hdmitx@4c {
> + compatible = "ite,it66121";
> + pinctrl-names = "default";
> + pinctrl-0 = <&ite_pins_default>;
> + vcn33-supply = <&mt6358_vcn33_wifi_reg>;
> + vcn18-supply = <&mt6358_vcn18_reg>;
> + vrf12-supply = <&mt6358_vrf12_reg>;
> + reset-gpios = <&pio 160 1 /* GPIO_ACTIVE_LOW */>;
> + interrupt-parent = <&pio>;
> + interrupts = <4 8 /* IRQ_TYPE_LEVEL_LOW */>;
> + reg = <0x4c>;
> + pclk-dual-edge;
> +
> + port {
> + it66121_in: endpoint {
> + remote-endpoint = <&display_out>;
> + };
> + };
> + };
> + };
> --
> 2.17.1
>
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