From patchwork Tue Dec 12 08:54:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 13488749 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="MNj1gmPT" Received: from mail-wr1-x429.google.com (mail-wr1-x429.google.com [IPv6:2a00:1450:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B39C8E4 for ; Tue, 12 Dec 2023 00:54:36 -0800 (PST) Received: by mail-wr1-x429.google.com with SMTP id ffacd0b85a97d-33634d2e059so124031f8f.1 for ; Tue, 12 Dec 2023 00:54:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1702371275; x=1702976075; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=QwIi4D029egdLiupJw5r3s9j6EAW6mH+ojBzoU8pmYo=; b=MNj1gmPToiMgkb5WnMtCuAZCrHfmEnZcoxRywOpyYKRxoUIwKjjfjRA1mDFvI8M3mH IMQdd8LLxmqETMSQ0Na+0KMaa8pZggCA4MJzL7Wb7cwG7x45yV7NXIiscEs5+UoYtZmE T1tnPxwN7/bQuyhiS9pvQJBY+1Sy7gTMZ4hYAxnLLDcuJHFifbTu6/h2r38XKl1v/E+j Hk9LoVZBR6AdiBEKICmXRTRkSJ+OVFjFly0kJPzx+zV9bpirBCCMa6RR4KJtWwLRWnuw d25v9oDFIwo5KFCkCqeSENOiqzOh3Evr5JtNTcZPvYu/rRWoH2eUFyXL9mpKHSDi68N3 bJbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702371275; x=1702976075; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=QwIi4D029egdLiupJw5r3s9j6EAW6mH+ojBzoU8pmYo=; b=TS9kqbNmd6z6zmRUYkgerO20Zu+9v5cJ68lcXgETx8Hu4cPD0xnAyGFoFMbMm/aMNq SMndibiol5WsLcnikqS07M5zZEL5mMBI6e+EN4MXR8V1RALaOR7j3mAznirf8eXUrCqe 4/FeP+pWPWUJlmu1M4HRXn4qL34vX68VFrEetj4v8wVVMVPIOsG2Lc+RUuQZTPozdg7Q 61S7bah3v5LPWdM0GuSe5f8PfGwo15dBPsuwCpHkFVcQ4CH9k+23sHzLncKKx90jTGXE uFu0yPK8X0R0XL5gxlZMm3hIYqMgb6xiJZMRBHU8suJVzEcirfQVZ1IB4MRgD4BKJjnw ALWw== X-Gm-Message-State: AOJu0YwXhMgMd0oIDuiNcfVuI8hIj3MLCCWi+xetoKnroVFa4VJLbYBm 1gDBQ7lUGzc31O1NMm8x2Yu03A== X-Google-Smtp-Source: AGHT+IELErmDK3VCQUDBaIZTUnycgtj4nCzdO2BpmtRJTQmyCLnLlTf+IN7jGqPiFrUWlKti0CBL/g== X-Received: by 2002:adf:e388:0:b0:333:179:d8d9 with SMTP id e8-20020adfe388000000b003330179d8d9mr2987342wrm.37.1702371275111; Tue, 12 Dec 2023 00:54:35 -0800 (PST) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:52eb:f6ff:feb3:451a]) by smtp.gmail.com with ESMTPSA id j4-20020a5d4644000000b003333bd63792sm10312155wrs.117.2023.12.12.00.54.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 00:54:34 -0800 (PST) From: Neil Armstrong Date: Tue, 12 Dec 2023 09:54:28 +0100 Subject: [PATCH v2 1/2] dt-bindings: usb: Document WCD939x USB SubSystem Altmode/Analog Audio Switch Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231212-topic-sm8650-upstream-wcd939x-usbss-v2-1-38961fea5867@linaro.org> References: <20231212-topic-sm8650-upstream-wcd939x-usbss-v2-0-38961fea5867@linaro.org> In-Reply-To: <20231212-topic-sm8650-upstream-wcd939x-usbss-v2-0-38961fea5867@linaro.org> To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heikki Krogerus , Liam Girdwood , Mark Brown Cc: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Neil Armstrong X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=3878; i=neil.armstrong@linaro.org; h=from:subject:message-id; bh=Db1epLGVNKw5pFK7cDcVlGWgqPBl4u+NnPdzy0TbpeQ=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBleB/HP1dBNGo7lGhNuHxzo7onQ+VBWPgsfr1jAHrA rrcKaKOJAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCZXgfxwAKCRB33NvayMhJ0VrvD/ 97iOfnzSBY6LhWRcdLOVTli4ra4sqCq3W/gnASJ0D7roWCr1tFZmjkxvU4NNlzSc4SenbbZYWuZZFG 9kChkV82dEDDgeqDbr5AgOewG7390QYZAB2XOITfLL6ueoVZWHBOPGQ7cOHbXf8jPZTl86uPpmPThX /9BcE3rg6pZUCdYNiZPAmpMlF5l511zYMl8eNAKHlrm/E8NQjtJoXynVXCAEf4vjNw1E2uc0gAU3r4 5hmW6MI8/Xcf6E/asE7JLVmJZ+qTfilHXmJT9E8r/EgJv5oxyf0CHY4gBICvZH6Fy+yaIIoI67yPnV /2MYquWas5RcnGCb7VizqtqeKoVnv28C3pOkexPgz7AqJBIe0Rgt5VisJLZAtajLe6SxO9j3c7V/fA WGDNVlOQcy+YVEbYl/vdhiHnmo9qQ4rAfw/weVg6e0+8r4pTS4sARbgGYxT9FYCylvbLrgnZEo3ZuZ xZzs+xXZkMazGQNZzywSpd0e0e1gEpP+x0n+yvNSFgvBdCk2RmdrzrwtnzCkbAx07SBXKXA1szzZvk /CkHtLU5eScJaPHcIeT0j3qdMTh7epTNEYKLJdj46E0rmLqqL3/fQYwJcoexUNfouKjpR23ZGu7G6h GsKudliwfrvVawjw32lBepk1Mehd969/qTe5oSrv6teuQ5z4JJRSKaFxN2iw== X-Developer-Key: i=neil.armstrong@linaro.org; a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE Document the Qualcomm WCD9390/WCD9395 USB SubSystem Altmode/Analog Audio Switch which is a separate USB SubSystem for Altmode/Analog Audio Switch accessible over an I2C interface. Since Audio Headphone and Microphone data path between the Codec and the USB-C Mux subsystems are external to the IC, it requires a second port to handle USB-C altmode & orientation switching for Audio Accessory Mode to the Codec SubSystem. Signed-off-by: Neil Armstrong Reviewed-by: Krzysztof Kozlowski --- .../bindings/usb/qcom,wcd939x-usbss.yaml | 102 +++++++++++++++++++++ 1 file changed, 102 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/qcom,wcd939x-usbss.yaml b/Documentation/devicetree/bindings/usb/qcom,wcd939x-usbss.yaml new file mode 100644 index 000000000000..7ddfd3313a18 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/qcom,wcd939x-usbss.yaml @@ -0,0 +1,102 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/qcom,wcd939x-usbss.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm WCD9380/WCD9385 USB SubSystem Altmode/Analog Audio Switch + +maintainers: + - Neil Armstrong + +description: + Qualcomm WCD9390/WCD9395 is a standalone Hi-Fi audio codec IC with a + functionally separate USB SubSystem for Altmode/Analog Audio Switch + accessible over an I2C interface. + The Audio Headphone and Microphone data path between the Codec and the + USB-C Mux subsystems are external to the IC, thus requiring DT port-endpoint + graph description to handle USB-C altmode & orientation switching for Audio + Accessory Mode. + +properties: + compatible: + oneOf: + - const: qcom,wcd9390-usbss + - items: + - const: qcom,wcd9395-usbss + - const: qcom,wcd9390-usbss + + reg: + maxItems: 1 + + reset-gpios: + maxItems: 1 + + vdd-supply: + description: USBSS VDD power supply + + mode-switch: + description: Flag the port as possible handle of altmode switching + type: boolean + + orientation-switch: + description: Flag the port as possible handler of orientation switching + type: boolean + + ports: + $ref: /schemas/graph.yaml#/properties/ports + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + A port node to link the WCD939x USB SubSystem to a TypeC controller for the + purpose of handling altmode muxing and orientation switching. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: + A port node to link the WCD939x USB SubSystem to the Codec SubSystem for the + purpose of handling USB-C Audio Accessory Mode muxing and orientation switching. + +required: + - compatible + - reg + - ports + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + typec-mux@42 { + compatible = "qcom,wcd9390-usbss"; + reg = <0x42>; + + vdd-supply = <&vreg_bob>; + + mode-switch; + orientation-switch; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + wcd9390_usbss_sbu: endpoint { + remote-endpoint = <&typec_sbu>; + }; + }; + port@1 { + reg = <1>; + wcd9390_usbss_codec: endpoint { + remote-endpoint = <&wcd9390_codec_usbss>; + }; + }; + }; + }; + }; +...