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Wysocki" , Prashant Malani , Benson Leung , Guenter Roeck Subject: [PATCH v7 7/9] dt/bindings: drm/bridge: it6505: Add mode-switch support Date: Thu, 5 Jan 2023 21:24:55 +0800 Message-Id: <20230105132457.4125372-8-treapking@chromium.org> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog In-Reply-To: <20230105132457.4125372-1-treapking@chromium.org> References: <20230105132457.4125372-1-treapking@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , chrome-platform@lists.linux.dev, =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Pin-yen Lin , Allen Chen , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Javier Martinez Canillas , linux-acpi@vger.kernel.org, devicetree@vger.kernel.org, Thomas Zimmermann , Hsin-Yi Wang , Stephen Boyd , Xin Ji , AngeloGioacchino Del Regno Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" ITE IT6505 can be used in systems to switch the DP traffic between two downstreams, which can be USB Type-C DisplayPort alternate mode lane or regular DisplayPort output ports. Update the binding to accommodate this usage by introducing a data-lanes and a mode-switch property on endpoints. Signed-off-by: Pin-yen Lin --- Changes in v7: - Fixed issues reported by dt_binding_check. - Updated the schema and the example dts for data-lanes. - Changed to generic naming for the example dts node. Changes in v6: - Remove switches node and use endpoints and data-lanes property to describe the connections. .../bindings/display/bridge/ite,it6505.yaml | 95 ++++++++++++++++--- 1 file changed, 84 insertions(+), 11 deletions(-) diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml index b16a9d9127dd..1ee7cd0d2035 100644 --- a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml +++ b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml @@ -77,20 +77,45 @@ properties: unevaluatedProperties: false description: Video port for DP output - properties: - endpoint: + patternProperties: + "^endpoint@[01]$": $ref: /schemas/graph.yaml#/$defs/endpoint-base unevaluatedProperties: false properties: + reg: + maxItems: 1 + + remote-endpoint: true + data-lanes: - minItems: 1 - uniqueItems: true - items: - - enum: [ 0, 1 ] - - const: 1 - - const: 2 - - const: 3 + oneOf: + - minItems: 1 + maxItems: 1 + items: + enum: [0, 1, 2, 3] + + - items: + - const: 0 + - const: 1 + + - items: + - const: 2 + - const: 3 + + - items: + - const: 0 + - const: 1 + - const: 2 + - const: 3 + + mode-switch: + type: boolean + description: Register this node as a Type-C mode switch or not. + + required: + - reg + - remote-endpoint required: - port@0 @@ -102,7 +127,6 @@ required: - pwr18-supply - interrupts - reset-gpios - - extcon - ports additionalProperties: false @@ -139,8 +163,11 @@ examples: }; port@1 { + #address-cells = <1>; + #size-cells = <0>; reg = <1>; - it6505_out: endpoint { + it6505_out: endpoint@0 { + reg = <0>; remote-endpoint = <&dp_in>; data-lanes = <0 1>; }; @@ -148,3 +175,49 @@ examples: }; }; }; + - | + #include + + i2c3 { + #address-cells = <1>; + #size-cells = <0>; + + dp-bridge@5c { + compatible = "ite,it6505"; + interrupts = <8 IRQ_TYPE_LEVEL_LOW 8 0>; + reg = <0x5c>; + pinctrl-names = "default"; + pinctrl-0 = <&it6505_pins>; + ovdd-supply = <&mt6366_vsim2_reg>; + pwr18-supply = <&pp1800_dpbrdg_dx>; + reset-gpios = <&pio 177 0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + it6505_dpi_in: endpoint { + remote-endpoint = <&dpi_out>; + }; + }; + port@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + ite_typec0: endpoint@0 { + reg = <0>; + mode-switch; + data-lanes = <0 1>; + remote-endpoint = <&typec_port0>; + }; + ite_typec1: endpoint@1 { + reg = <1>; + mode-switch; + data-lanes = <2 3>; + remote-endpoint = <&typec_port1>; + }; + }; + }; + }; + };