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Date: Thu, 14 Oct 2021 15:16:48 -0500
From: Rob Herring <robh@...nel.org>
To: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
Cc: a.hajda@...sung.com, daniel@...ll.ch, airlied@...ux.ie,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: display/bridge: tc358767: Convert to YAML
binding
On Wed, Oct 06, 2021 at 03:52:04PM +0200, AngeloGioacchino Del Regno wrote:
> Convert the Toshiba TC358767 txt documentation to YAML.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
> .../display/bridge/toshiba,tc358767.txt | 54 --------
> .../display/bridge/toshiba,tc358767.yaml | 118 ++++++++++++++++++
> 2 files changed, 118 insertions(+), 54 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.txt
> create mode 100644 Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.txt b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.txt
> deleted file mode 100644
> index 583c5e9dbe6b..000000000000
> --- a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.txt
> +++ /dev/null
> @@ -1,54 +0,0 @@
> -Toshiba TC358767 eDP bridge bindings
> -
> -Required properties:
> - - compatible: "toshiba,tc358767"
> - - reg: i2c address of the bridge, 0x68 or 0x0f, depending on bootstrap pins
> - - clock-names: should be "ref"
> - - clocks: OF device-tree clock specification for refclk input. The reference
> - clock rate must be 13 MHz, 19.2 MHz, 26 MHz, or 38.4 MHz.
> -
> -Optional properties:
> - - shutdown-gpios: OF device-tree gpio specification for SD pin
> - (active high shutdown input)
> - - reset-gpios: OF device-tree gpio specification for RSTX pin
> - (active low system reset)
> - - toshiba,hpd-pin: TC358767 GPIO pin number to which HPD is connected to (0 or 1)
> - - ports: the ports node can contain video interface port nodes to connect
> - to a DPI/DSI source and to an eDP/DP sink according to [1][2]:
> - - port@0: DSI input port
> - - port@1: DPI input port
> - - port@2: eDP/DP output port
> -
> -[1]: Documentation/devicetree/bindings/graph.txt
> -[2]: Documentation/devicetree/bindings/media/video-interfaces.txt
> -
> -Example:
> - edp-bridge@68 {
> - compatible = "toshiba,tc358767";
> - reg = <0x68>;
> - shutdown-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
> - reset-gpios = <&gpio3 24 GPIO_ACTIVE_LOW>;
> - clock-names = "ref";
> - clocks = <&edp_refclk>;
> -
> - ports {
> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - port@1 {
> - reg = <1>;
> -
> - bridge_in: endpoint {
> - remote-endpoint = <&dpi_out>;
> - };
> - };
> -
> - port@2 {
> - reg = <2>;
> -
> - bridge_out: endpoint {
> - remote-endpoint = <&panel_in>;
> - };
> - };
> - };
> - };
> diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml
> new file mode 100644
> index 000000000000..8e27e6f0fc7d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358767.yaml
> @@ -0,0 +1,118 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/toshiba,tc358767.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Toshiba TC358767 MIPI-DSI or MIPI-DPI to DP/eDP bridge
> +
> +maintainers:
> + - Tomi Valkeinen <tomi.valkeinen@...com>
> +
> +properties:
> + compatible:
> + enum:
> + - toshiba,tc358767
> +
> + reg:
> + description: I2C address of the bridge
> + enum: [0x68, 0x0f]
> +
> + clocks:
> + description:
> + Reference clock input. The reference clock rate must be 13MHz, 19.2MHz,
> + 26MHz, or 38.4MHz.
> + maxItems: 1
> +
> + clock-names:
> + const: ref
> +
> + reset-gpios:
> + description: GPIO connected to the RSTX signal.
> + maxItems: 1
> +
> + shutdown-gpios:
> + description: GPIO connected to the SD signal.
> + maxItems: 1
> +
> + toshiba,hpd-pin:
> + $ref: "/schemas/types.yaml#/definitions/uint32"
> + description: TC356767 GPIO pin number to which HPD is connected
> + enum:
> + - 0
> + - 1
> +
> + ports:
> + $ref: /schemas/graph.yaml#/properties/ports
> +
> + properties:
> + port@0:
> + $ref: /schemas/graph.yaml#/properties/port
> + description:
> + Video port for MIPI DSI input
> +
> + port@1:
> + $ref: /schemas/graph.yaml#/properties/port
> + description:
> + Video port for MIPI DPI input
> +
> + port@2:
> + $ref: /schemas/graph.yaml#/properties/port
> + description:
> + Video port for DP/eDP output (panel or connector).
> +
> + oneOf:
> + - required:
> + - port@0
> + - port@2
> + - required:
> + - port@1
> + - port@2
You could move port@2 out to:
required:
- port@2
> +
> +required:
> + - compatible
> + - reg
> + - clock-names
> + - clocks
> + - ports
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> +
> + i2c1 {
i2c {
With that,
Reviewed-by: Rob Herring <robh@...nel.org>
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + bridge@68 {
> + compatible = "toshiba,tc358767";
> + reg = <0x68>;
> + clock-names = "ref";
> + clocks = <&edp_refclk>;
> + reset-gpios = <&gpio3 24 GPIO_ACTIVE_LOW>;
> + shutdown-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@1 {
> + reg = <1>;
> + bridge_in: endpoint {
> + remote-endpoint = <&dpi_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> + bridge_out: endpoint {
> + remote-endpoint = <&panel_in>;
> + };
> + };
> + };
> + };
> + };
> +
> +...
> --
> 2.33.0
>
>
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