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Message-Id: <20250728-initial_audio_support_for_qualcomm_hamoa_iot_evk_board-v2-1-58aa30b60c7b@qti.qualcomm.com>
Date: Mon, 28 Jul 2025 15:16:13 +0800
From: leqi via B4 Relay <devnull+leqi.qti.qualcomm.com@...nel.org>
To: Konrad Dybcio <konradybcio@...nel.org>,
Bjorn Andersson <andersson@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, leqi <leqi@....qualcomm.com>
Subject: [PATCH v2] arm64: dts: qcom: Add initial audio support for
Hamoa-IOT-EVK
From: leqi <leqi@....qualcomm.com>
This patch adds initial audio codec support for the Hamoa-IOT-EVK board,
including WCD9385 configuration, micbias voltage settings, GPIO reset,
and power supply bindings. It enables basic audio functionality for
further development. Basic test is good in Hamoa-IOT-EVK board.
Signed-off-by: leqi <leqi@....qualcomm.com>
---
Changes in v2:
- Updated author email address to leqi@....qualcomm.com.
- Clarified that audio is validated with this change.
- Link to v1: https://lore.kernel.org/all/20250723-initial_audio_support_for_qualcomm_hamoa_iot_evk_board-v1-1-816991701952@quicinc.com/
---
arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 232 +++++++++++++++++++++++++++++
1 file changed, 232 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
index 843f39c9d59286a9303a545411b2518d7649a059..91618e22e86c46c698b3639f60bc19314705b391 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
@@ -124,6 +124,94 @@ pmic_glink_ss2_con_sbu_in: endpoint {
};
};
+ sound {
+ compatible = "qcom,x1e80100-sndcard";
+ model = "X1E80100-EVK";
+ audio-routing = "WooferLeft IN", "WSA WSA_SPK1 OUT",
+ "TweeterLeft IN", "WSA WSA_SPK2 OUT",
+ "WooferRight IN", "WSA2 WSA_SPK2 OUT",
+ "TweeterRight IN", "WSA2 WSA_SPK2 OUT",
+ "IN1_HPHL", "HPHL_OUT",
+ "IN2_HPHR", "HPHR_OUT",
+ "AMIC2", "MIC BIAS2",
+ "VA DMIC0", "MIC BIAS3",
+ "VA DMIC1", "MIC BIAS3",
+ "VA DMIC2", "MIC BIAS1",
+ "VA DMIC3", "MIC BIAS1",
+ "VA DMIC0", "VA MIC BIAS3",
+ "VA DMIC1", "VA MIC BIAS3",
+ "VA DMIC2", "VA MIC BIAS1",
+ "VA DMIC3", "VA MIC BIAS1",
+ "TX SWR_INPUT1", "ADC2_OUTPUT";
+
+ wcd-playback-dai-link {
+ link-name = "WCD Playback";
+
+ cpu {
+ sound-dai = <&q6apmbedai RX_CODEC_DMA_RX_0>;
+ };
+
+ codec {
+ sound-dai = <&wcd938x 0>, <&swr1 0>, <&lpass_rxmacro 0>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
+ wcd-capture-dai-link {
+ link-name = "WCD Capture";
+
+ cpu {
+ sound-dai = <&q6apmbedai TX_CODEC_DMA_TX_3>;
+ };
+
+ codec {
+ sound-dai = <&wcd938x 1>, <&swr2 1>, <&lpass_txmacro 0>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
+ wsa-dai-link {
+ link-name = "WSA Playback";
+
+ cpu {
+ sound-dai = <&q6apmbedai WSA_CODEC_DMA_RX_0>;
+ };
+
+ codec {
+ sound-dai = <&left_woofer>, <&left_tweeter>,
+ <&swr0 0>, <&lpass_wsamacro 0>,
+ <&right_woofer>, <&right_tweeter>,
+ <&swr3 0>, <&lpass_wsa2macro 0>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
+ va-dai-link {
+ link-name = "VA Capture";
+
+ cpu {
+ sound-dai = <&q6apmbedai VA_CODEC_DMA_TX_0>;
+ };
+
+ codec {
+ sound-dai = <&lpass_vamacro 0>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+ };
+
vph_pwr: regulator-vph-pwr {
compatible = "regulator-fixed";
@@ -353,6 +441,33 @@ vreg_wwan: regulator-wwan {
regulator-boot-on;
};
+ wcd938x: audio-codec {
+ compatible = "qcom,wcd9385-codec";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&wcd_default>;
+
+ reset-gpios = <&tlmm 191 GPIO_ACTIVE_LOW>;
+
+ qcom,micbias1-microvolt = <1800000>;
+ qcom,micbias2-microvolt = <1800000>;
+ qcom,micbias3-microvolt = <1800000>;
+ qcom,micbias4-microvolt = <1800000>;
+ qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000
+ 500000 500000 500000 500000>;
+ qcom,mbhc-headset-vthreshold-microvolt = <1700000>;
+ qcom,mbhc-headphone-vthreshold-microvolt = <50000>;
+ qcom,rx-device = <&wcd_rx>;
+ qcom,tx-device = <&wcd_tx>;
+
+ vdd-buck-supply = <&vreg_l15b_1p8>;
+ vdd-rxtx-supply = <&vreg_l15b_1p8>;
+ vdd-io-supply = <&vreg_l15b_1p8>;
+ vdd-mic-bias-supply = <&vreg_bob1>;
+
+ #sound-dai-cells = <1>;
+ };
+
wcn7850-pmu {
compatible = "qcom,wcn7850-pmu";
@@ -572,6 +687,32 @@ retimer_ss1_con_sbu_out: endpoint {
};
};
+&lpass_tlmm {
+ spkr_01_sd_n_active: spkr-01-sd-n-active-state {
+ pins = "gpio12";
+ function = "gpio";
+ drive-strength = <16>;
+ bias-disable;
+ output-low;
+ };
+
+ spkr_23_sd_n_active: spkr-23-sd-n-active-state {
+ pins = "gpio13";
+ function = "gpio";
+ drive-strength = <16>;
+ bias-disable;
+ output-low;
+ };
+};
+
+&lpass_vamacro {
+ pinctrl-0 = <&dmic01_default>, <&dmic23_default>;
+ pinctrl-names = "default";
+
+ vdd-micb-supply = <&vreg_l1b_1p8>;
+ qcom,dmic-sample-rate = <4800000>;
+};
+
&pcie6a {
vddpe-3v3-supply = <&vreg_nvme>;
};
@@ -645,6 +786,90 @@ &smb2360_2_eusb2_repeater {
vdd3-supply = <&vreg_l8b_3p0>;
};
+&swr0 {
+ status = "okay";
+
+ pinctrl-0 = <&wsa_swr_active>, <&spkr_01_sd_n_active>;
+ pinctrl-names = "default";
+
+ /* WSA8845, Left Woofer */
+ left_woofer: speaker@0,0 {
+ compatible = "sdw20217020400";
+ reg = <0 0>;
+ reset-gpios = <&lpass_tlmm 12 GPIO_ACTIVE_LOW>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "WooferLeft";
+ vdd-1p8-supply = <&vreg_l15b_1p8>;
+ vdd-io-supply = <&vreg_l12b_1p2>;
+ qcom,port-mapping = <1 2 3 7 10 13>;
+ };
+
+ /* WSA8845, Left Tweeter */
+ left_tweeter: speaker@0,1 {
+ compatible = "sdw20217020400";
+ reg = <0 1>;
+ reset-gpios = <&lpass_tlmm 12 GPIO_ACTIVE_LOW>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "TweeterLeft";
+ vdd-1p8-supply = <&vreg_l15b_1p8>;
+ vdd-io-supply = <&vreg_l12b_1p2>;
+ qcom,port-mapping = <4 5 6 7 11 13>;
+ };
+};
+
+&swr1 {
+ status = "okay";
+
+ /* WCD9385 RX */
+ wcd_rx: codec@0,4 {
+ compatible = "sdw20217010d00";
+ reg = <0 4>;
+ qcom,rx-port-mapping = <1 2 3 4 5>;
+ };
+};
+
+&swr2 {
+ status = "okay";
+
+ /* WCD9385 TX */
+ wcd_tx: codec@0,3 {
+ compatible = "sdw20217010d00";
+ reg = <0 3>;
+ qcom,tx-port-mapping = <2 2 3 4>;
+ };
+};
+
+&swr3 {
+ status = "okay";
+
+ pinctrl-0 = <&wsa2_swr_active>, <&spkr_23_sd_n_active>;
+ pinctrl-names = "default";
+
+ /* WSA8845, Right Woofer */
+ right_woofer: speaker@0,0 {
+ compatible = "sdw20217020400";
+ reg = <0 0>;
+ reset-gpios = <&lpass_tlmm 13 GPIO_ACTIVE_LOW>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "WooferRight";
+ vdd-1p8-supply = <&vreg_l15b_1p8>;
+ vdd-io-supply = <&vreg_l12b_1p2>;
+ qcom,port-mapping = <1 2 3 7 10 13>;
+ };
+
+ /* WSA8845, Right Tweeter */
+ right_tweeter: speaker@0,1 {
+ compatible = "sdw20217020400";
+ reg = <0 1>;
+ reset-gpios = <&lpass_tlmm 13 GPIO_ACTIVE_LOW>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "TweeterRight";
+ vdd-1p8-supply = <&vreg_l15b_1p8>;
+ vdd-io-supply = <&vreg_l12b_1p2>;
+ qcom,port-mapping = <4 5 6 7 11 13>;
+ };
+};
+
&tlmm {
eusb3_reset_n: eusb3-reset-n-state {
pins = "gpio6";
@@ -733,6 +958,13 @@ usb2_pwr_3p3_reg_en: usb2-pwr-3p3-reg-en-state {
bias-disable;
};
+ wcd_default: wcd-reset-n-active-state {
+ pins = "gpio191";
+ function = "gpio";
+ drive-strength = <16>;
+ bias-disable;
+ output-low;
+ };
wcn_bt_en: wcn-bt-en-state {
pins = "gpio116";
---
base-commit: 3b28da3245e8c43f3f5948513b4e859a3d0fa820
change-id: 20250725-initial_audio_support_for_qualcomm_hamoa_iot_evk_board-cb268fd5c654
Best regards,
--
leqi <leqi@....qualcomm.com>
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