From patchwork Thu Jan 5 13:24:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pin-yen Lin X-Patchwork-Id: 13089885 Received: from mail-pj1-f50.google.com (mail-pj1-f50.google.com [209.85.216.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A6BC68494 for ; Thu, 5 Jan 2023 13:25:51 +0000 (UTC) Received: by mail-pj1-f50.google.com with SMTP id o21so9711245pjw.0 for ; Thu, 05 Jan 2023 05:25:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Iwwp3U8ZO9l33wBPdYbUslPJS4OdAaqOipDsvKHUvw4=; b=NFmtJxruhfDGIscARXxUxMnJ8bIDMuz6GQyFZIJpUMR2vjBWuzVlo1Ntr6U0LjVom8 jNDEYi1Y1rKoBEpPcsjuNym42klClmWKmfb42EidVOf3/eE3lt8Bnzioy5yhIIV+BvO6 1wLN3JL8YsKkZ758whFfLrA/OYsJfIEyGxDUg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Iwwp3U8ZO9l33wBPdYbUslPJS4OdAaqOipDsvKHUvw4=; b=dQXZlsFkglDFxPvMuR2ZPQXBHLGg3thG5hTac8yeBb+3W5ugibYfs2JObzmgpEnlZ5 e1AD8eygWGiF2uUQmymed3k6/kIl7VJTo2ZhPV413rrdWcApKwqxlflqstT9+elDw6jr 5WsKP+1O+PBxqGbck9CZuStwbcBhSmglnrfHZrwIEgD0q1gadm2r/0Cc0sKkOoEFLpbn lmMbnxogj9uy7LE96Yc1yMAv0Zld+0cn6Egp+vNet9MmyaeDAJCRgLYyLLPRdjYz8d3N bSuAaoQ6RWtTxnS7NnpX7ho1PFXFYbKzrsOuwyHZ6C742uCgCkKjpDnGejpWh08HlGfN xegg== X-Gm-Message-State: AFqh2kq4CGH3WM/T7GVFY91aOCY+dKZfE/HAseUYxJLtt3N39kQrkYBA ctqgTwe554jvMT3hhpcj/G4X5A== X-Google-Smtp-Source: AMrXdXsVgq9H0r6nMlqdgVJ8rT31POYJpyYs+lssnDycN2WN43sj16tzoY0ymo5PnPD/iwAfQxhzwg== X-Received: by 2002:a17:90b:3797:b0:226:3981:1ae3 with SMTP id mz23-20020a17090b379700b0022639811ae3mr24411009pjb.28.1672925151173; Thu, 05 Jan 2023 05:25:51 -0800 (PST) Received: from treapking.tpe.corp.google.com ([2401:fa00:1:10:7a61:eb85:2e3:2bd0]) by smtp.gmail.com with ESMTPSA id gk22-20020a17090b119600b00225e670e4c7sm1372682pjb.35.2023.01.05.05.25.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Jan 2023 05:25:50 -0800 (PST) From: Pin-yen Lin To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "Rafael J . Wysocki" , Prashant Malani , Benson Leung , Guenter Roeck Cc: =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Xin Ji , AngeloGioacchino Del Regno , Thomas Zimmermann , Hsin-Yi Wang , linux-kernel@vger.kernel.org, Allen Chen , linux-acpi@vger.kernel.org, Lyude Paul , dri-devel@lists.freedesktop.org, chrome-platform@lists.linux.dev, Pin-yen Lin , Javier Martinez Canillas , Marek Vasut , devicetree@vger.kernel.org, Stephen Boyd 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> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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>; + }; + }; + }; + }; + };