linux-kernel - [PATCH v2 1/8] ASoC: dt-bindings: wcd937x: add bindings for wcd937x

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Message-ID: <20240416063600.309747-2-quic_mohs@quicinc.com>
Date: Tue, 16 Apr 2024 12:05:53 +0530
From: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Banajit Goswami
	<bgoswami@...cinc.com>,
        Liam Girdwood <lgirdwood@...il.com>, Mark Brown
	<broonie@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Jaroslav Kysela
	<perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>
CC: <alsa-devel@...a-project.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-sound@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_rohkumar@...cinc.com>,
        <quic_pkumpatl@...cinc.com>,
        Mohammad Rafi Shaik <quic_mohs@...cinc.com>
Subject: [PATCH v2 1/8] ASoC: dt-bindings: wcd937x: add bindings for wcd937x

From: Prasad Kumpatla <quic_pkumpatl@...cinc.com>

Qualcomm WCD9370/WCD9375 Codec is a standalone Hi-Fi audio codec IC
connected over SoundWire. This device has two SoundWire device RX and
TX respectively, supporting 3 x ADCs, ClassH, Ear, Aux PA, 2xHPH,
6 DMICs, MBHC.

Co-developed-by: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
Signed-off-by: Prasad Kumpatla <quic_pkumpatl@...cinc.com>
---
 .../bindings/sound/qcom,wcd937x.yaml          | 119 ++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,wcd937x.yaml

diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd937x.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd937x.yaml
new file mode 100644
index 000000000000..b45f823af04f
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,wcd937x.yaml
@@ -0,0 +1,119 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wcd937x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm WCD9370 Audio Codec
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
+
+description: |
+  Qualcomm WCD9370 Codec is a standalone Hi-Fi audio codec IC.
+  It has RX and TX Soundwire slave devices.
+
+properties:
+  compatible:
+    enum:
+      - qcom,wcd9370-codec
+
+  reset-gpios:
+    description: GPIO spec for reset line to use
+    maxItems: 1
+
+  vdd-buck-supply:
+    description: A reference to the 1.8V buck supply
+
+  vdd-rxtx-supply:
+    description: A reference to the 1.8V rx supply
+
+  vdd-px-supply:
+    description: A reference to the 1.8V I/O supply
+
+  vdd-mic-bias-supply:
+    description: A reference to the 3.8V mic bias supply
+
+  qcom,tx-device:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: A reference to Soundwire tx device phandle
+
+  qcom,rx-device:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: A reference to Soundwire rx device phandle
+
+  qcom,micbias1-microvolt:
+    description: micbias1 voltage
+    minimum: 1800000
+    maximum: 2850000
+
+  qcom,micbias2-microvolt:
+    description: micbias2 voltage
+    minimum: 1800000
+    maximum: 2850000
+
+  qcom,micbias3-microvolt:
+    description: micbias3 voltage
+    minimum: 1800000
+    maximum: 2850000
+
+  '#sound-dai-cells':
+    const: 1
+
+required:
+  - compatible
+  - reset-gpios
+  - qcom,tx-device
+  - qcom,rx-device
+  - qcom,micbias1-microvolt
+  - qcom,micbias2-microvolt
+  - qcom,micbias3-microvolt
+  - "#sound-dai-cells"
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    codec {
+        compatible = "qcom,wcd9370-codec";
+        pinctrl-names = "default", "sleep";
+        pinctrl-0 = <&wcd_reset_n>;
+        pinctrl-1 = <&wcd_reset_n_sleep>;
+        reset-gpios = <&tlmm 83 0>;
+        vdd-buck-supply = <&vreg_l17b_1p8>;
+        vdd-rxtx-supply = <&vreg_l18b_1p8>;
+        vdd-px-supply = <&vreg_l18b_1p8>;
+        vdd-mic-bias-supply = <&vreg_bob>;
+        qcom,micbias1-microvolt = <1800000>;
+        qcom,micbias2-microvolt = <1800000>;
+        qcom,micbias3-microvolt = <1800000>;
+        qcom,rx-device = <&wcd937x_rx>;
+        qcom,tx-device = <&wcd937x_tx>;
+        #sound-dai-cells = <1>;
+    };
+
+    /* ... */
+
+    soundwire@...0000 {
+        #address-cells = <2>;
+        #size-cells = <0>;
+        reg = <0x03210000 0x2000>;
+        wcd937x_rx: codec@0,4 {
+            compatible = "sdw20217010a00";
+            reg  = <0 4>;
+            qcom,rx-port-mapping = <1 2 3 4 5>;
+        };
+    };
+
+    soundwire@...0000 {
+        #address-cells = <2>;
+        #size-cells = <0>;
+        reg = <0x03230000 0x2000>;
+        wcd937x_tx: codec@0,3 {
+            compatible = "sdw20217010a00";
+            reg  = <0 3>;
+            qcom,tx-port-mapping = <2 3 4 5>;
+        };
+    };
+
+...
-- 
2.25.1