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X-OriginatorOrg: topic.nl X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Aug 2025 05:32:15.6862 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 359172c8-d8b0-4f5d-835e-08dddee1c1f5 X-MS-Exchange-CrossTenant-Id: 449607a5-3517-482d-8d16-41dd868cbda3 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=449607a5-3517-482d-8d16-41dd868cbda3;Ip=[20.93.157.195];Helo=[westeu11-emailsignatures-cloud.codetwo.com] X-MS-Exchange-CrossTenant-AuthSource: DU6PEPF00009527.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSKPR04MB11463 Content-Type: text/plain; charset="utf-8" Add DT binding document for TI TMDS181 and SN65DP159 HDMI retimers. Signed-off-by: Mike Looijmans --- Changes in v2: Document driver specific bindings like slew-rate and threshold .../bindings/display/bridge/ti,tmds181.yaml | 143 ++++++++++++++++++ 1 file changed, 143 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,tmd= s181.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/ti,tmds181.ya= ml b/Documentation/devicetree/bindings/display/bridge/ti,tmds181.yaml new file mode 100644 index 000000000000..816bea54846f --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ti,tmds181.yaml @@ -0,0 +1,143 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/ti,tmds181.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TMDS181 and SN65DP159 HDMI retimer/redriver chips + +maintainers: + - Mike Looijmans + +description: | + Texas Instruments TMDS181 and SN65DP159 retimer and redriver chips. + https://www.ti.com/product/TMDS181 + https://www.ti.com/product/TMDS181 + +properties: + compatible: + enum: + - ti,tmds181 + - ti,sn65dp159 + + reg: + enum: + - 0x5b + - 0x5c + - 0x5d + - 0x5e + + oe-gpios: + maxItems: 1 + description: GPIO specifier for OE pin (active high). + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Video port for HDMI (ish) input + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Video port for HDMI output (panel or bridge) + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + required: + - port@0 + - port@1 + + ti,source-mode: + type: boolean + description: + Force chip to operate in "source" mode. Allows to use + a TMDS181 chip (which defaults to sink) as cable driver. + + ti,sink-mode: + type: boolean + description: + Force chip to operate in "sink" mode. Allows to use + a DP159 chip (defaults to source) for incoming signals. + + ti,retimer-threshold-hz: + minimum: 25000000 + maximum: 600000000 + default: 200000000 + description: + Cross-over point. Up until this pixel clock frequency + the chip remains in the low-power redriver mode. Above + the threshold the chip should operate in retimer mode. + + ti,dvi-mode: + type: boolean + description: Makes the DP159 chip operate in DVI mode. + + ti,slew-rate: + minimum: 0 + maximum: 3 + default: 3 + description: Set slew rate, 0 is slowest, 3 is fastest. + + ti,disable-equalizer: + type: boolean + description: Disable the equalizer (to save power). + + ti,adaptive-equalizer: + type: boolean + description: Set the equalizer to adaptive mode. + +required: + - compatible + - reg + - ports + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + bridge@5b { + compatible =3D "ti,sn65dp159"; + reg =3D <0x5b>; + + oe-gpios =3D <&gpio2 1 GPIO_ACTIVE_HIGH>; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + endpoint { + remote-endpoint =3D <&encoder_out>; + }; + }; + + port@1 { + reg =3D <1>; + + endpoint { + remote-endpoint =3D <&hdmi_connector_in>; + }; + }; + }; + }; + }; --=20 2.43.0 Met vriendelijke groet / kind regards, Mike Looijmans System Expert TOPIC Embedded Products B.V. Materiaalweg 4, 5681 RJ Best The Netherlands T: +31 (0) 499 33 69 69 E: mike.looijmans@topic.nl W: www.topic.nl Please consider the environment before printing this e-mail