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Thu, 23 Nov 2023 06:49:21 -0800 (PST) From: Neil Armstrong Date: Thu, 23 Nov 2023 15:49:12 +0100 Subject: [PATCH 2/5] ASoC: dt-bindings: document WCD939x Audio Codec MIME-Version: 1.0 Message-Id: <20231123-topic-sm8650-upstream-wcd939x-codec-v1-2-21d4ad9276de@linaro.org> References: <20231123-topic-sm8650-upstream-wcd939x-codec-v1-0-21d4ad9276de@linaro.org> In-Reply-To: <20231123-topic-sm8650-upstream-wcd939x-codec-v1-0-21d4ad9276de@linaro.org> To: Srinivas Kandagatla , Banajit Goswami , Andy Gross , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jaroslav Kysela , Takashi Iwai Cc: linux-arm-msm@vger.kernel.org, alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Neil Armstrong X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=6327; i=neil.armstrong@linaro.org; h=from:subject:message-id; bh=oHPZkGB2+lxc+Hu7wE58PGrnkLEAPNKccodV0RWgue4=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBlX2Zt9JH1UOmqaZsEEAIMwtoKeYIrJNN/hAds9sns pzsO3hqJAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCZV9mbQAKCRB33NvayMhJ0Q20D/ 9jaKFy3eXEBgNMRJ0QYmLMcilCqvGjvP3oiJsqz4yVGzG3+dmvtl4InLV0euJ+9fk5OLC0JXTgSy+r TL1Lgj7Y9COniVlLlX/BVzI5X8myL5Tvl6L4yASDx44QppNw377YlD/ZaEkH7Akf8r3Af+y1c6fDA1 uGq5FPcXRh0zbzZ5adM/wNpibl5ef1BScs6M8JQmvKe6u9yHziJJgbrQtcFIo1t5iNCxaiLl5WmZ68 NcDNY527101/eRVfxsT4iAsbrCFC6G3Pib/S/mSF8DxKCVf9zU2+2qMCORwPgD2v9UoBjgkUzQ12r2 /E7ofwWT96A2+KAIsXSlhbRBx+EhBDreH+VjmgFJZWbFa+pc/MQPpO06ajFs+9QgT3+nirgoOTBde8 vtnHJfICjd49KvlB0KXbOw9EvPEbU2GOGKvAjfzpxForcA8Ib+BMcW+3hUV8uPSob5dlNAjBVUICf2 cVdbxQEhFC1s5icwCQeNiyaRRyt2JUQnWzPp1LjZpyEglXQY5VtevkHHrvilsM/BR/Y9WL73QOqqcP eacdWrKrE0WEdwOHrVxD2GXB1jiHketAIF6QvttbcNWHmgeGzuLKP3IxlFGG1aXgBraUq8eF+FdK4R mkT5nQ1FNGPloMP+MHo5vtyYKIkp8bFDbsPM2nS55U0Hp3OfdK47qyGR3pGA== X-Developer-Key: i=neil.armstrong@linaro.org; a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE Message-ID-Hash: JEAW7H32NHBBH4CX6CO43KKFRJRPE5LZ X-Message-ID-Hash: JEAW7H32NHBBH4CX6CO43KKFRJRPE5LZ X-MailFrom: neil.armstrong@linaro.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Document the Qualcomm WCD9390/WCD9395 Audio Codec and the Soundwire slaves than can be found on Qualcomm SM8650 based platforms. The Qualcomm WCD9390/WCD9395 Audio Codec communicates with the host SoC over 2 Soundwire links to provide: - 4 ADC inputs for up to 5 Analog Microphones - 4 DMIC inputs for up to 8 Digital Microphones - 4 Microphone BIAS - Stereo Headphone output - Mono EAR output - MBHC engine for Headset Detection The WCD9390/WCD9395 IC has separate I2C subsystem for USB-C DP Altmode/Audio Accessory mode Mux which is not documented here but requires port/endpoint graph and properties to handle Altmode/Audio Accessory switch and orientation. Signed-off-by: Neil Armstrong --- .../bindings/sound/qcom,wcd939x-sdw.yaml | 70 ++++++++++++++++ .../devicetree/bindings/sound/qcom,wcd939x.yaml | 93 ++++++++++++++++++++++ 2 files changed, 163 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd939x-sdw.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd939x-sdw.yaml new file mode 100644 index 000000000000..7528c8b100a1 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,wcd939x-sdw.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/qcom,wcd939x-sdw.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SoundWire Slave devices on WCD9390/WCD9395 + +maintainers: + - Srinivas Kandagatla + +description: | + Qualcomm WCD9390/WCD9395 Codec is a standalone Hi-Fi audio codec IC. + It has RX and TX Soundwire slave devices. This bindings is for the + slave devices. + +properties: + compatible: + const: sdw20217010e00 + + reg: + maxItems: 1 + + qcom,tx-port-mapping: + description: | + Specifies static port mapping between slave and master tx ports. + In the order of slave port index. + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 4 + maxItems: 4 + + qcom,rx-port-mapping: + description: | + Specifies static port mapping between slave and master rx ports. + In the order of slave port index. + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 6 + maxItems: 6 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + soundwire@3210000 { + #address-cells = <2>; + #size-cells = <0>; + reg = <0x03210000 0x2000>; + wcd938x_rx: codec@0,4 { + compatible = "sdw20217010e00"; + reg = <0 4>; + qcom,rx-port-mapping = <1 2 3 4 5 6>; + }; + }; + + soundwire@3230000 { + #address-cells = <2>; + #size-cells = <0>; + reg = <0x03230000 0x2000>; + wcd938x_tx: codec@0,3 { + compatible = "sdw20217010e00"; + reg = <0 3>; + qcom,tx-port-mapping = <2 3 4 5>; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd939x.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd939x.yaml new file mode 100644 index 000000000000..39c1de6961ea --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,wcd939x.yaml @@ -0,0 +1,93 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/qcom,wcd939x.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm WCD9380/WCD9385 Audio Codec + +maintainers: + - Srinivas Kandagatla + +description: | + Qualcomm WCD9390/WCD9395 Codec is a standalone Hi-Fi audio codec IC. + It has RX and TX Soundwire slave devices. + The WCD9390/WCD9395 IC has a functionally separate USB-C Mux subsystem + 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. + +allOf: + - $ref: dai-common.yaml# + - $ref: qcom,wcd93xx-common.yaml# + +properties: + compatible: + enum: + - qcom,wcd9390-codec + - qcom,wcd9395-codec + + 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 + + port: + $ref: /schemas/graph.yaml#/properties/port + description: + A port node to link the WCD939x Codec node to USB MUX subsystems for the + purpose of handling altmode muxing and orientation switching to detecte and + enable Audio Accessory Mode. + +required: + - compatible + +unevaluatedProperties: false + +examples: + - | + codec { + compatible = "qcom,wcd9390-codec"; + reset-gpios = <&tlmm 32 0>; + #sound-dai-cells = <1>; + qcom,tx-device = <&wcd939x_tx>; + qcom,rx-device = <&wcd939x_rx>; + qcom,micbias1-microvolt = <1800000>; + qcom,micbias2-microvolt = <1800000>; + qcom,micbias3-microvolt = <1800000>; + qcom,micbias4-microvolt = <1800000>; + qcom,hphl-jack-type-normally-closed; + qcom,ground-jack-type-normally-closed; + qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000 500000 500000 500000>; + qcom,mbhc-headphone-vthreshold-microvolt = <50000>; + }; + + /* ... */ + + soundwire@3210000 { + #address-cells = <2>; + #size-cells = <0>; + reg = <0x03210000 0x2000>; + wcd939x_rx: codec@0,4 { + compatible = "sdw20217010e00"; + reg = <0 4>; + qcom,rx-port-mapping = <1 2 3 4 5 6>; + }; + }; + + soundwire@3230000 { + #address-cells = <2>; + #size-cells = <0>; + reg = <0x03230000 0x2000>; + wcd938x_tx: codec@0,3 { + compatible = "sdw20217010e00"; + reg = <0 3>; + qcom,tx-port-mapping = <2 3 4 5>; + }; + }; + +...