2019-12-26 22:25:54

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH 1/2] dt-bindings: display: bridge: Add documentation for Toshiba tc358768

On Tue, Dec 17, 2019 at 12:15:05PM +0200, Peter Ujfalusi wrote:
> TC358768/TC358778 is a Parallel RGB to MIPI DSI bridge.
>
> Signed-off-by: Peter Ujfalusi <[email protected]>
> ---
> .../display/bridge/toshiba,tc358768.yaml | 158 ++++++++++++++++++
> 1 file changed, 158 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
> new file mode 100644
> index 000000000000..8f96867caca0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
> @@ -0,0 +1,158 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/toshiba,tc358768.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Toschiba TC358768/TC358778 Parallel RGB to MIPI DSI bridge
> +
> +maintainers:
> + - Peter Ujfalusi <[email protected]>
> +
> +description: |
> + The TC358768/TC358778 is bridge device which converts RGB to DSI.
> +
> +properties:
> + compatible:
> + enum:
> + - toshiba,tc358768
> + - toshiba,tc358778
> +
> + reg:
> + maxItems: 1
> + description: base I2C address of the device
> +
> + reset-gpios:
> + maxItems: 1
> + description: GPIO connected to active low RESX pin
> +
> + vddc-supply:
> + maxItems: 1

Drop this. Not an array. *-supply doesn't need further constraints.

> + description: Regulator for 1.2V internal core power.
> +
> + vddmipi-supply:
> + maxItems: 1
> + description: Regulator for 1.2V for the MIPI.
> +
> + vddio-supply:
> + maxItems: 1
> + description: Regulator for 1.8V - 3.3V IO power.

Blank line here.

> + clocks:
> + maxItems: 1
> +
> + clock-names:
> + const: refclk
> +
> + ports:
> + type: object
> +
> + properties:
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 0
> +
> + port@0:
> + type: object
> + additionalProperties: false
> +
> + description: |
> + Video port for RGB input
> +
> + properties:
> + reg:
> + const: 0
> +
> + patternProperties:
> + endpoint:
> + type: object
> + additionalProperties: false
> +
> + properties:
> + data-lines:
> + enum: [ 16, 18, 24 ]
> +
> + remote-endpoint: true
> +
> + required:
> + - reg
> +
> + port@1:
> + type: object
> + description: |
> + Video port for DSI output (panel or connector).
> +
> + properties:
> + reg:
> + const: 1
> +
> + patternProperties:
> + endpoint:
> + type: object
> + additionalProperties: false
> +
> + properties:
> + remote-endpoint: true
> +
> + required:
> + - reg

No additionalProperties on this one?

> +
> + required:
> + - "#address-cells"
> + - "#size-cells"
> + - port@0
> + - port@1
> +
> +required:
> + - compatible
> + - reg
> + - vddc-supply
> + - vddmipi-supply
> + - vddio-supply
> + - ports
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + i2c1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + dsi_bridge: tc358768@0e {
> + compatible = "toshiba,tc358768";
> + reg = <0x0e>;
> +
> + clocks = <&tc358768_refclk>;
> + clock-names = "refclk";
> +
> + /* GPIO line is inverted before going to the bridge */
> + reset-gpios = <&pcf_display_board 0 1 /* GPIO_ACTIVE_LOW */>;
> +
> + vddc-supply = <&v1_2d>;
> + vddmipi-supply = <&v1_2d>;
> + vddio-supply = <&v3_3d>;
> +
> + dsi_bridge_ports: ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + rgb_in: endpoint {
> + remote-endpoint = <&dpi_out>;
> + data-lines = <24>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + dsi_out: endpoint {
> + remote-endpoint = <&lcd_in>;
> + };
> + };
> + };
> + };
> + };
> +
> --
> Peter
>
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
> Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
>


2020-01-14 11:56:09

by Peter Ujfalusi

[permalink] [raw]
Subject: Re: [PATCH 1/2] dt-bindings: display: bridge: Add documentation for Toshiba tc358768



On 27/12/2019 0.24, Rob Herring wrote:
> On Tue, Dec 17, 2019 at 12:15:05PM +0200, Peter Ujfalusi wrote:
>> TC358768/TC358778 is a Parallel RGB to MIPI DSI bridge.
>>
>> Signed-off-by: Peter Ujfalusi <[email protected]>
>> ---
>> .../display/bridge/toshiba,tc358768.yaml | 158 ++++++++++++++++++
>> 1 file changed, 158 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
>> new file mode 100644
>> index 000000000000..8f96867caca0
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358768.yaml
>> @@ -0,0 +1,158 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/display/bridge/toshiba,tc358768.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Toschiba TC358768/TC358778 Parallel RGB to MIPI DSI bridge
>> +
>> +maintainers:
>> + - Peter Ujfalusi <[email protected]>
>> +
>> +description: |
>> + The TC358768/TC358778 is bridge device which converts RGB to DSI.
>> +
>> +properties:
>> + compatible:
>> + enum:
>> + - toshiba,tc358768
>> + - toshiba,tc358778
>> +
>> + reg:
>> + maxItems: 1
>> + description: base I2C address of the device
>> +
>> + reset-gpios:
>> + maxItems: 1
>> + description: GPIO connected to active low RESX pin
>> +
>> + vddc-supply:
>> + maxItems: 1
>
> Drop this. Not an array. *-supply doesn't need further constraints.

OK.

>
>> + description: Regulator for 1.2V internal core power.
>> +
>> + vddmipi-supply:
>> + maxItems: 1
>> + description: Regulator for 1.2V for the MIPI.
>> +
>> + vddio-supply:
>> + maxItems: 1
>> + description: Regulator for 1.8V - 3.3V IO power.
>
> Blank line here.

Oops, I'll fix it.

>
>> + clocks:
>> + maxItems: 1
>> +
>> + clock-names:
>> + const: refclk
>> +
>> + ports:
>> + type: object
>> +
>> + properties:
>> + "#address-cells":
>> + const: 1
>> +
>> + "#size-cells":
>> + const: 0
>> +
>> + port@0:
>> + type: object
>> + additionalProperties: false
>> +
>> + description: |
>> + Video port for RGB input
>> +
>> + properties:
>> + reg:
>> + const: 0
>> +
>> + patternProperties:
>> + endpoint:
>> + type: object
>> + additionalProperties: false
>> +
>> + properties:
>> + data-lines:
>> + enum: [ 16, 18, 24 ]
>> +
>> + remote-endpoint: true
>> +
>> + required:
>> + - reg
>> +
>> + port@1:
>> + type: object
>> + description: |
>> + Video port for DSI output (panel or connector).
>> +
>> + properties:
>> + reg:
>> + const: 1
>> +
>> + patternProperties:
>> + endpoint:
>> + type: object
>> + additionalProperties: false
>> +
>> + properties:
>> + remote-endpoint: true
>> +
>> + required:
>> + - reg
>
> No additionalProperties on this one?

Correct, I have missed the additionalProperties: false

I'll update the binding documents when I get comments for the driver.

Thank you,
- Péter

>
>> +
>> + required:
>> + - "#address-cells"
>> + - "#size-cells"
>> + - port@0
>> + - port@1
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - vddc-supply
>> + - vddmipi-supply
>> + - vddio-supply
>> + - ports
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + i2c1 {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + dsi_bridge: tc358768@0e {
>> + compatible = "toshiba,tc358768";
>> + reg = <0x0e>;
>> +
>> + clocks = <&tc358768_refclk>;
>> + clock-names = "refclk";
>> +
>> + /* GPIO line is inverted before going to the bridge */
>> + reset-gpios = <&pcf_display_board 0 1 /* GPIO_ACTIVE_LOW */>;
>> +
>> + vddc-supply = <&v1_2d>;
>> + vddmipi-supply = <&v1_2d>;
>> + vddio-supply = <&v3_3d>;
>> +
>> + dsi_bridge_ports: ports {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + port@0 {
>> + reg = <0>;
>> + rgb_in: endpoint {
>> + remote-endpoint = <&dpi_out>;
>> + data-lines = <24>;
>> + };
>> + };
>> +
>> + port@1 {
>> + reg = <1>;
>> + dsi_out: endpoint {
>> + remote-endpoint = <&lcd_in>;
>> + };
>> + };
>> + };
>> + };
>> + };
>> +
>> --
>> Peter
>>
>> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
>> Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
>>

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki