linux-kernel - [PATCH v1 06/10] ASoC: dt-bindings: add wsa881x-i2c binding for analog mode

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Message-ID: <20241101053154.497550-7-alexey.klimov@linaro.org>
Date: Fri,  1 Nov 2024 05:31:50 +0000
From: Alexey Klimov <alexey.klimov@...aro.org>
To: broonie@...nel.org,
	konradybcio@...nel.org,
	konrad.dybcio@....qualcomm.com,
	andersson@...nel.org,
	srinivas.kandagatla@...aro.org
Cc: tiwai@...e.com,
	lgirdwood@...il.com,
	perex@...ex.cz,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	dmitry.baryshkov@...aro.org,
	linux-sound@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 06/10] ASoC: dt-bindings: add wsa881x-i2c binding for analog mode

Add binding document for WSA881X family of smart speaker amplifiers
that set to work in analog mode only and configurable via i2c only.
Such devices are found in Qualcomm QRB4210 RB2 boards with
SM4250/SM6115 SoCs.

Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
---
 .../bindings/sound/qcom,wsa881x-i2c.yaml      | 103 ++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,wsa881x-i2c.yaml

diff --git a/Documentation/devicetree/bindings/sound/qcom,wsa881x-i2c.yaml b/Documentation/devicetree/bindings/sound/qcom,wsa881x-i2c.yaml
new file mode 100644
index 000000000000..51b040b134d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,wsa881x-i2c.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wsa881x-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm WSA8810/WSA8815 Class-D Smart Speaker Amplifier in Analog mode
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
+  - Alexey Klimov <alexey.klimov@...aro.org>
+
+description: |
+  WSA8810 is a class-D smart speaker amplifier and WSA8815
+  is a high-output power class-D smart speaker amplifier.
+  Their primary operating mode uses a SoundWire digital audio
+  interface however the amplifier also supports analog mode and it
+  can be controlled via I2C. This binding is for I2C interface.
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    const: qcom,qrb4210-wsa881x-i2c-codec
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    description: Master clock for WSA amplifier
+    maxItems: 1
+
+  clock-names:
+    description: Master clock name
+    maxItems: 1
+
+  powerdown-gpios:
+    description: GPIO spec for Powerdown/Shutdown line to use
+    maxItems: 1
+
+  mclk-gpios:
+    description: GPIO spec for mclk
+    maxItems: 1
+
+  '#sound-dai-cells':
+    const: 0
+
+required:
+  - compatible
+  - clocks
+  - reg
+  - powerdown-gpios
+  - mclk-gpios
+  - "#sound-dai-cells"
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/sound/qcom,q6afe.h>
+
+    i2c0 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      wsa881x@e {
+        compatible = "qcom,qrb4210-wsa881x-i2c-codec";
+        reg = <0x0e>;
+        clocks = <&q6afecc LPASS_CLK_ID_MCLK_3 LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+        powerdown-gpios = <&lpass_tlmm 16 GPIO_ACTIVE_LOW>;
+        mclk-gpios = <&lpass_tlmm 18 GPIO_ACTIVE_HIGH>;
+        #sound-dai-cells = <0>;
+      };
+    };
+
+    i2c1 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+        wsa881x-right@e {
+          compatible = "qcom,qrb4210-wsa881x-i2c-codec";
+          reg = <0x0e>;
+          clocks = <&q6afecc LPASS_CLK_ID_MCLK_3 LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+          powerdown-gpios = <&lpass_tlmm 16 GPIO_ACTIVE_LOW>;
+          mclk-gpios = <&lpass_tlmm 18 GPIO_ACTIVE_HIGH>;
+          sound-name-prefix = "SpkrRight";
+          #sound-dai-cells = <0>;
+        };
+
+        wsa881x-left@f {
+            compatible = "qcom,qrb4210-wsa881x-i2c-codec";
+            reg = <0x0f>;
+            clocks = <&q6afecc LPASS_CLK_ID_MCLK_2 LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+            powerdown-gpios = <&lpass_tlmm 6 GPIO_ACTIVE_LOW>;
+            mclk-gpios = <&lpass_tlmm 8 GPIO_ACTIVE_HIGH>;
+            sound-name-prefix = "SpkrLeft";
+            #sound-dai-cells = <0>;
+        };
+    };
+
+...
-- 
2.45.2