[PATCH 1/2] dt-bindings: Add DT bindings for Toshiba TC358762 DSI-to-DPI bridge
Sam Ravnborg
sam at ravnborg.org
Sun Jul 26 07:06:27 UTC 2020
Hi Marek.
On Sat, Jul 25, 2020 at 11:14:56PM +0200, Marek Vasut wrote:
> Add DT bindings for Toshiba TC358762 DSI-to-DPI bridge, this
> one is used in the Raspberry Pi 7" touchscreen display unit.
>
> Signed-off-by: Marek Vasut <marex at denx.de>
> To: dri-devel at lists.freedesktop.org
> Cc: Eric Anholt <eric at anholt.net>
> Cc: Rob Herring <robh+dt at kernel.org>
> Cc: Sam Ravnborg <sam at ravnborg.org>
> Cc: devicetree at vger.kernel.org
This looks like a candidate for the simple-bridge-yaml binding.
Did you check if this is sufficient or we really need a new binding?
If we need a new binding then they to take a look at how simple-bridge
define the ports. You can do this in a simple way than what is used
here.
It looks like this was copied from toshiba,tc358768.yaml, but there are
better examples to follow.
Sam
> ---
> .../display/bridge/toshiba,tc358762.yaml | 116 ++++++++++++++++++
> 1 file changed, 116 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/bridge/toshiba,tc358762.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358762.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358762.yaml
> new file mode 100644
> index 000000000000..40098ca761a3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358762.yaml
> @@ -0,0 +1,116 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/toshiba,tc358762.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Toshiba TC358762 MIPI DSI to MIPI DPI bridge
> +
> +maintainers:
> + - Marek Vasut <marex at denx.de>
> +
> +description: |
> + The TC358762 is bridge device which converts MIPI DSI to MIPI DPI.
> +
> +properties:
> + compatible:
> + enum:
> + - toshiba,tc358762
> +
> + reg:
> + maxItems: 1
> + description: virtual channel number of a DSI peripheral
> +
> + vddc-supply:
> + description: Regulator for 1.2V internal core power.
> +
> + ports:
> + type: object
> +
> + properties:
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 0
> +
> + port at 0:
> + type: object
> + additionalProperties: false
> +
> + description: |
> + Video port for MIPI DSI input
> +
> + properties:
> + reg:
> + const: 0
> +
> + patternProperties:
> + endpoint:
> + type: object
> + additionalProperties: false
> +
> + properties:
> + remote-endpoint: true
> +
> + required:
> + - reg
> +
> + port at 1:
> + type: object
> + additionalProperties: false
> +
> + description: |
> + Video port for MIPI DPI output (panel or connector).
> +
> + properties:
> + reg:
> + const: 1
> +
> + patternProperties:
> + endpoint:
> + type: object
> + additionalProperties: false
> +
> + properties:
> + remote-endpoint: true
> +
> + required:
> + - reg
> +
> + required:
> + - "#address-cells"
> + - "#size-cells"
> + - port at 0
> + - port at 1
> +
> +required:
> + - compatible
> + - reg
> + - vddc-supply
> + - ports
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + bridge at 0 {
> + reg = <0>;
> + compatible = "toshiba,tc358762";
> + vddc-supply = <&vcc_1v2_reg>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + port at 0 {
> + reg = <0>;
> + bridge_in: endpoint {
> + remote-endpoint = <&dsi_out>;
> + };
> + };
> +
> + port at 1 {
> + reg = <1>;
> + bridge_out: endpoint {
> + remote-endpoint = <&panel_in>;
> + };
> + };
> + };
> --
> 2.27.0
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