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Message-Id: <20250626-pm4125_audio_codec_v1-v1-1-e52933c429a0@linaro.org>
Date: Thu, 26 Jun 2025 00:50:29 +0100
From: Alexey Klimov <alexey.klimov@...aro.org>
To: Srinivas Kandagatla <srini@...nel.org>,
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>, Stephen Boyd <sboyd@...nel.org>
Cc: Lee Jones <lee@...nel.org>, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>, linux-arm-msm@...r.kernel.org,
linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>,
Alexey Klimov <alexey.klimov@...aro.org>
Subject: [PATCH 1/3] dt-bindings: sound: add bindings for pm4125 audio
codec
The audio codec IC is found on Qualcomm PM4125/PM2250 PMIC.
It has TX and RX soundwire slave devices hence two files
are added.
Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
---
.../bindings/sound/qcom,pm4125-codec.yaml | 147 +++++++++++++++++++++
.../devicetree/bindings/sound/qcom,pm4125-sdw.yaml | 86 ++++++++++++
2 files changed, 233 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/qcom,pm4125-codec.yaml b/Documentation/devicetree/bindings/sound/qcom,pm4125-codec.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..1b6ce8d4397b4c1c048899bd2cc4d02318cc46c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,pm4125-codec.yaml
@@ -0,0 +1,147 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,pm4125-codec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm PM4125 Audio Codec
+
+maintainers:
+ - Alexey Klimov <alexey.klimov@...aro.org>
+
+description:
+ The audio codec IC found on Qualcomm PM4125/PM2250 PMIC.
+ It has RX and TX Soundwire slave devices.
+
+allOf:
+ - $ref: dai-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,pm4125-codec
+
+ reg:
+ description:
+ Specifies the SPMI base address for the audio codec peripherals. The
+ address space contains reset register needed to power-on the codec.
+ maxItems: 1
+
+ reg-names:
+ maxItems: 1
+
+ vdd-io-supply:
+ description: A reference to the 1.8V I/O supply
+
+ vdd-cp-supply:
+ description: A reference to the charge pump I/O supply
+
+ vdd-mic-bias-supply:
+ description: A reference to the 3.3V mic bias supply
+
+ vdd-pa-vpos-supply:
+ description: A reference to the PA VPOS 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
+
+ qcom,mbhc-buttons-vthreshold-microvolt:
+ description:
+ Array of 8 Voltage threshold values corresponding to headset
+ button0 - button7
+ minItems: 8
+ maxItems: 8
+
+ '#sound-dai-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vdd-io-supply
+ - vdd-cp-supply
+ - vdd-mic-bias-supply
+ - vdd-pa-vpos-supply
+ - qcom,tx-device
+ - qcom,rx-device
+ - qcom,micbias1-microvolt
+ - qcom,micbias2-microvolt
+ - qcom,micbias3-microvolt
+ - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/spmi/spmi.h>
+
+ spmi {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ pmic@0 {
+ compatible = "qcom,pm8916", "qcom,spmi-pmic";
+ reg = <0x0 SPMI_USID>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ audio-codec@...0 {
+ compatible = "qcom,pm4125-codec";
+ reg = <0xf000>;
+ vdd-io-supply = <&pm4125_l15>;
+ vdd-cp-supply = <&pm4125_s4>;
+ vdd-pa-vpos-supply = <&pm4125_s4>;
+ vdd-mic-bias-supply = <&pm4125_l22>;
+ qcom,micbias1-microvolt = <1800000>;
+ qcom,micbias2-microvolt = <1800000>;
+ qcom,micbias3-microvolt = <1800000>;
+ qcom,rx-device = <&pm4125_rx>;
+ qcom,tx-device = <&pm4125_tx>;
+ #sound-dai-cells = <1>;
+ };
+ };
+ };
+
+ /* ... */
+
+ soundwire@...0000 {
+ reg = <0x0a610000 0x2000>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+ pm4125_rx: audio-codec@0,4 {
+ compatible = "sdw20217010c00";
+ reg = <0 4>;
+ qcom,rx-port-mapping = <1 3>;
+ };
+ };
+
+ soundwire@...0000 {
+ reg = <0x0a740000 0x2000>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+ pm4125_tx: audio-codec@0,3 {
+ compatible = "sdw20217010c00";
+ reg = <0 3>;
+ qcom,tx-port-mapping = <1 1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/sound/qcom,pm4125-sdw.yaml b/Documentation/devicetree/bindings/sound/qcom,pm4125-sdw.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7241d2ab5dcf4a0d5f25a75acb33a335f93d3b5e
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,pm4125-sdw.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,pm4125-sdw.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SoundWire Slave devices on PM4125/PM2250 PMIC audio codec.
+
+maintainers:
+ - Alexey Klimov <alexey.klimov@...aro.org>
+
+description: |
+ The audio codec IC found on Qualcomm PM4125/PM2250 PMICs.
+ It has RX and TX Soundwire slave devices. This bindings is for the
+ slave devices.
+
+properties:
+ compatible:
+ const: sdw20217010c00
+
+ reg:
+ maxItems: 1
+
+ qcom,tx-port-mapping:
+ description: |
+ Specifies static port mapping between device and host tx ports.
+ In the order of the device port index which are adc1_port, adc23_port,
+ dmic03_mbhc_port, dmic46_port.
+ Supports maximum 2 tx soundwire ports.
+
+ PM4125 TX Port 1 (ADC1,2 & DMIC0 & MBHC) <=> SWR0 Port 1
+ PM4125 TX Port 2 (ADC1 & DMIC0,1,2 & MBHC) <=> SWR0 Port 2
+
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 2
+ maxItems: 2
+ items:
+ enum: [1, 2, 3, 4]
+
+ qcom,rx-port-mapping:
+ description: |
+ Specifies static port mapping between device and host rx ports.
+ In the order of device port index which are hph_port, clsh_port,
+ comp_port, lo_port, dsd port.
+ Supports maximum 2 rx soundwire ports.
+
+ PM4125 RX Port 1 (HPH_L/R) <==> SWR1 Port 1 (HPH_L/R)
+ PM4125 RX Port 2 (COMP_L/R) <==> SWR1 Port 3 (COMP_L/R)
+
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 2
+ maxItems: 2
+ items:
+ enum: [1, 2, 3, 4, 5]
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ soundwire@...0000 {
+ reg = <0x0a610000 0x2000>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+ pm4125_rx: codec@0,1 {
+ compatible = "sdw20217010c00";
+ reg = <0 1>;
+ qcom,rx-port-mapping = <1 3>;
+ };
+ };
+
+ soundwire@...0000 {
+ reg = <0x0a740000 0x2000>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+ pm4125_tx: codec@0,1 {
+ compatible = "sdw20217010c00";
+ reg = <0 1>;
+ qcom,tx-port-mapping = <1 1>;
+ };
+ };
+
+...
--
2.47.2
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