From patchwork Mon Aug 19 22:38:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 821281 Received: from mail-pf1-f169.google.com (mail-pf1-f169.google.com [209.85.210.169]) (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 281F51DF695 for ; Mon, 19 Aug 2024 22:39:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.169 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724107146; cv=none; b=n4ZNJCLhlsljibB2pXIf46MmX25iAA3Qggi5EAwV80hkOfAKcC3QDYjd3JcekOTHRJaZDPxVfiTfjfznU+3SWc4zRXwMYl5aRj4kA2FczWcXFx8Cg2nXQYY+lrqbl9tYFxALDB8KNgUKQJ9J9bzuuxPINsbk7Vcke28AvvbNAmc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724107146; c=relaxed/simple; bh=OyfKCvFwATaUez+mf6fqverYicn9LjhxOLPnjc5Aioo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=O/WD3HQoEduBPJoKXdBe1Y3FGuVJe80yRgyTukVk1I5o2h7jAzeWsN3JD7ZupeO570OaFeOjNnVShq3LhAToP8s030sXZEWjhQrLaWLxQNwjTFkO+YO0/KGg/lfpf1CQLPcvgf+6F6ExAcHtuArrSg8sH1MSRWcf8NdJFs7oiWI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=QEThiaFP; arc=none smtp.client-ip=209.85.210.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="QEThiaFP" Received: by mail-pf1-f169.google.com with SMTP id d2e1a72fcca58-70d18d4b94cso3787914b3a.2 for ; Mon, 19 Aug 2024 15:39:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1724107143; x=1724711943; darn=vger.kernel.org; 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=+KXXy3QiBKqggoPFDIuBfkDFn401Aqji9aDGpL9/5hY=; b=QEThiaFPy3jMiwt3vGxKE5TNLpLw6/YcxtKVI3S/vuQAJ1U9tWv78tC4/bA4Ezt2Xr NcffNhI41xl5eXh80Du4uxt5DIy+FuMf/i8rBtc9q9s0SWdB8imCFYviMPwa9pE2H9TG eKQ55xG1sJXbPNEJU/GyKPAvFSqzrJiHkJ4Zw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724107143; x=1724711943; 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=+KXXy3QiBKqggoPFDIuBfkDFn401Aqji9aDGpL9/5hY=; b=GSVvI/lZW+lO+TfNoAZGcbPDdUl0jod9+LcOqL2AY3n8+QuXCu8d9Rb07KTq5cs/pw UNOfB5a2pRIitTGLhDaG4pKNU3AUPBcBywbjruxxmFXlDRX/pCaADJB0cCRytj5VJRSb fMbYVgbdsDdx8xlrho92BG4bHBDS8RnH7CBkW8xn3b1Tgo4MD64ugFjJz5f7svemg5Dp n5smRV4Qi0fjRdA0Zj3ExHV7sYkurPfyRd4w2LalQLzskBQ757aWxEg1tv3qKdSmOBAI 78qsFpfNl/8z5eIOoGpfGKgJXllNwdeu7swt4zM71aEqSgzP/ur0Qy178agvSfioElAa dFEQ== X-Forwarded-Encrypted: i=1; AJvYcCXIUAFi/K+Vl7JFtVKxhWujBjoNQgmuPvTZuqkenlQmRGZmU5ZVPilrIZ6FD9U4tSgzm56aMFXUsE8=@vger.kernel.org X-Gm-Message-State: AOJu0YwpJ/GzXcbTmW7vY64QrqyU8PkM9T1IfL6Q2xgd27/Xn6euKdhB E0UZwyiO4Zmg+VMbaQ3seZRcF/eaA+uYCRUtDQ3j6hcrVQp17DsEC32G5eEb/g== X-Google-Smtp-Source: AGHT+IHkcygBzOoFTnBwjvK9vCMx1AS2hQGHjZYX96J9FuIVU3ZRveOh/nk0VuMfJPp9k0jk6TfziQ== X-Received: by 2002:a05:6a20:3149:b0:1ca:c958:bf55 with SMTP id adf61e73a8af0-1cac958bf92mr516935637.0.1724107143200; Mon, 19 Aug 2024 15:39:03 -0700 (PDT) Received: from localhost (210.73.125.34.bc.googleusercontent.com. [34.125.73.210]) by smtp.gmail.com with UTF8SMTPSA id 41be03b00d2f7-7c6b636bcabsm8080907a12.90.2024.08.19.15.39.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 Aug 2024 15:39:02 -0700 (PDT) From: Stephen Boyd To: chrome-platform@lists.linux.dev Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, devicetree@vger.kernel.org, Douglas Anderson , Pin-yen Lin , Andrzej Hajda , Benson Leung , Conor Dooley , Daniel Vetter , David Airlie , Dmitry Baryshkov , dri-devel@lists.freedesktop.org, Guenter Roeck , Jernej Skrabec , Jonas Karlman , Krzysztof Kozlowski , Laurent Pinchart , Lee Jones , Maarten Lankhorst , Maxime Ripard , Neil Armstrong , Prashant Malani , Robert Foss , Rob Herring , Thomas Zimmermann , Tzung-Bi Shih , Alexandre Belloni , Andy Shevchenko , Daniel Scally , Greg Kroah-Hartman , Heikki Krogerus , Ivan Orlov , linux-acpi@vger.kernel.org, linux-usb@vger.kernel.org, Mika Westerberg , "Rafael J . Wysocki" , Sakari Ailus , Vinod Koul Subject: [PATCH v3 12/17] dt-bindings: usb-switch: Extend for DisplayPort altmode Date: Mon, 19 Aug 2024 15:38:26 -0700 Message-ID: <20240819223834.2049862-13-swboyd@chromium.org> X-Mailer: git-send-email 2.46.0.184.g6999bdac58-goog In-Reply-To: <20240819223834.2049862-1-swboyd@chromium.org> References: <20240819223834.2049862-1-swboyd@chromium.org> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Extend the usb-switch binding to support DisplayPort (DP) alternate modes. A third port for the DP signal is necessary when a mode-switch is muxing USB and DP together onto a usb type-c connector. Add data-lanes to the usbc output node to allow a device using this binding to remap the data lanes on the output. Add an example to show how this new port can be used. Cc: Rob Herring Cc: Krzysztof Kozlowski Cc: Conor Dooley Cc: Benson Leung Cc: Guenter Roeck Cc: Prashant Malani Cc: Tzung-Bi Shih Cc: Cc: Cc: Pin-yen Lin Signed-off-by: Stephen Boyd Reviewed-by: Rob Herring (Arm) --- .../devicetree/bindings/usb/usb-switch.yaml | 90 +++++++++++++++++++ 1 file changed, 90 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/usb-switch.yaml b/Documentation/devicetree/bindings/usb/usb-switch.yaml index 5fc031b56fad..7a932c638a90 100644 --- a/Documentation/devicetree/bindings/usb/usb-switch.yaml +++ b/Documentation/devicetree/bindings/usb/usb-switch.yaml @@ -54,6 +54,15 @@ properties: $ref: '#/$defs/usbc-in-endpoint' unevaluatedProperties: false + port@2: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + + properties: + endpoint: + $ref: '#/$defs/dp-endpoint' + unevaluatedProperties: false + oneOf: - required: - port @@ -67,6 +76,19 @@ $defs: $ref: /schemas/graph.yaml#/$defs/endpoint-base description: Super Speed (SS) output endpoint to a type-c connector unevaluatedProperties: false + properties: + data-lanes: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: | + An array of physical USB Type-C data lane indexes. + - 0 is SSRX1 lane + - 1 is SSTX1 lane + - 2 is SSTX2 lane + - 3 is SSRX2 lane + minItems: 4 + maxItems: 4 + items: + maximum: 3 usbc-in-endpoint: $ref: /schemas/graph.yaml#/$defs/endpoint-base @@ -81,7 +103,75 @@ $defs: items: maximum: 8 + dp-endpoint: + $ref: /schemas/graph.yaml#/$defs/endpoint-base + description: DisplayPort (DP) input from the DP PHY + unevaluatedProperties: false + properties: + data-lanes: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: | + An array of physical DP data lane indexes + - 0 is DP ML0 lane + - 1 is DP ML1 lane + - 2 is DP ML2 lane + - 3 is DP ML3 lane + oneOf: + - items: + - const: 0 + - const: 1 + - items: + - const: 0 + - const: 1 + - const: 2 + - const: 3 + examples: + # A USB + DP mode and orientation switch which muxes DP altmode + # and USB onto a usb-c-connector node. + - | + device { + mode-switch; + orientation-switch; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + endpoint { + remote-endpoint = <&usb_c_connector>; + data-lanes = <0 1 2 3>; + }; + }; + + port@1 { + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + + endpoint { + remote-endpoint = <&usb_ss_phy>; + }; + }; + + port@2 { + reg = <2>; + #address-cells = <1>; + #size-cells = <0>; + + endpoint { + remote-endpoint = <&dp_phy>; + data-lanes = <0 1 2 3>; + }; + }; + }; + }; + # A USB orientation switch which flips the pin orientation # for a usb-c-connector node. - |