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Message-ID: <7a7067ef-3c1c-ea20-8322-6d90c2c4c680@ti.com>
Date: Tue, 14 Jan 2020 13:55:17 +0200
From: Peter Ujfalusi <peter.ujfalusi@...com>
To: Rob Herring <robh@...nel.org>
CC: <airlied@...ux.ie>, <daniel@...ll.ch>, <mark.rutland@....com>,
<a.hajda@...sung.com>, <narmstrong@...libre.com>,
<tomi.valkeinen@...com>, <dri-devel@...ts.freedesktop.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<Laurent.pinchart@...asonboard.com>, <jonas@...boo.se>,
<jernej.skrabec@...l.net>
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 <peter.ujfalusi@...com>
>> ---
>> .../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 <peter.ujfalusi@...com>
>> +
>> +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
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