[PATCH 18/20] arm64: dts: qcom: kaanapali-mtp: Add audio support (WSA8845, WCD9395, DMIC)

Jingyi Wang
2025-09-25T00:17:57Z

From: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com>

Add support for audio on the Kaanapali MTP platform by introducing device
tree nodes for WSA8845 smart speaker amplifier for playback, DMIC
microphone for capture, and sound card routing. The WCD9395 codec is add
to supply MIC-BIAS, for enabling onboard microphone capture.

Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com>
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/kaanapali-mtp.dts | 226 +++++++++++++++++++++++++++++
1 file changed, 226 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/kaanapali-mtp.dts b/arch/arm64/boot/dts/qcom/kaanapali-mtp.dts
index 8d1b3278389e..759414b87146 100644
--- a/arch/arm64/boot/dts/qcom/kaanapali-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/kaanapali-mtp.dts
@@ -84,6 +84,87 @@ key-volume-up {
};
};

+ sound {
+ compatible = "qcom,kaanapali-sndcard", "qcom,sm8450-sndcard";
+ model = "Kaanapali-MTP";
+
+ audio-routing = "SpkrLeft IN", "WSA_SPK1 OUT",
+ "SpkrRight IN", "WSA_SPK2 OUT",
+ "IN1_HPHL", "HPHL_OUT",
+ "IN2_HPHR", "HPHR_OUT",
+ "AMIC2", "MIC BIAS2",
+ "VA DMIC0", "MIC BIAS1",
+ "VA DMIC1", "MIC BIAS1",
+ "VA DMIC2", "MIC BIAS3",
+ "VA DMIC3", "MIC BIAS3",
+ "TX SWR_INPUT1", "ADC2_OUTPUT";
+
+ wcd-playback-dai-link {
+ link-name = "WCD Playback";
+
+ codec {
+ sound-dai = <&wcd939x 0>, <&swr1 0>, <&lpass_rxmacro 0>;
+ };
+
+ cpu {
+ sound-dai = <&q6apmbedai RX_CODEC_DMA_RX_0>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
+ wcd-capture-dai-link {
+ link-name = "WCD Capture";
+
+ codec {
+ sound-dai = <&wcd939x 1>, <&swr2 0>, <&lpass_txmacro 0>;
+ };
+
+ cpu {
+ sound-dai = <&q6apmbedai TX_CODEC_DMA_TX_3>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
+ wsa-dai-link {
+ link-name = "WSA Playback";
+
+ codec {
+ sound-dai = <&north_spkr>, <&south_spkr>, <&swr0 0>,
+ <&lpass_wsamacro 0>;
+ };
+
+ cpu {
+ sound-dai = <&q6apmbedai WSA_CODEC_DMA_RX_0>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
+ va-dai-link {
+ link-name = "VA Capture";
+
+ codec {
+ sound-dai = <&lpass_vamacro 0>;
+ };
+
+ cpu {
+ sound-dai = <&q6apmbedai VA_CODEC_DMA_TX_0>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+ };
+
thermal-zones {
pmh0101-thermal {
polling-delay-passive = <100>;
@@ -304,6 +385,34 @@ trip1 {
};
};

+ wcd939x: audio-codec {
+ compatible = "qcom,wcd9395-codec", "qcom,wcd9390-codec";
+
+ pinctrl-0 = <&wcd_default>;
+ pinctrl-names = "default";
+
+ 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>;
+
+ reset-gpios = <&tlmm 161 GPIO_ACTIVE_LOW>;
+
+ vdd-buck-supply = <&vreg_l15b_1p8>;
+ vdd-rxtx-supply = <&vreg_l15b_1p8>;
+ vdd-io-supply = <&vreg_l15b_1p8>;
+ vdd-mic-bias-supply = <&vreg_bob1>;
+ vdd-px-supply = <&vreg_l1g_1p2>;
+
+ #sound-dai-cells = <1>;
+ };
+
wcn7850-pmu {
compatible = "qcom,wcn7850-pmu";

@@ -987,6 +1096,14 @@ vreg_l7n_3p3: ldo7 {
};
};

+&lpass_vamacro {
+ pinctrl-0 = <&dmic01_default>, <&dmic23_default>;
+ pinctrl-names = "default";
+
+ vdd-micb-supply = <&vreg_l10b_1p8>;
+ qcom,dmic-sample-rate = <4800000>;
+};
+
&pmh0110_d_e0 {
status = "okay";
};
@@ -1164,6 +1281,94 @@ led@3 {
};
};

+&swr0 {
+ status = "okay";
+
+ /* WSA8845, Speaker North */
+ north_spkr: speaker@0,0 {
+ compatible = "sdw20217020400";
+ reg = <0 0>;
+ pinctrl-0 = <&spkr_0_sd_n_active>;
+ pinctrl-names = "default";
+ powerdown-gpios = <&tlmm 76 GPIO_ACTIVE_LOW>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "SpkrLeft";
+ vdd-1p8-supply = <&vreg_l15b_1p8>;
+ vdd-io-supply = <&vreg_l2i_1p2>;
+
+ /*
+ * WSA8845 Port 1 (DAC) <=> SWR0 Port 1 (SPKR_L)
+ * WSA8845 Port 2 (COMP) <=> SWR0 Port 2 (SPKR_L_COMP)
+ * WSA8845 Port 3 (BOOST) <=> SWR0 Port 3 (SPKR_L_BOOST)
+ * WSA8845 Port 4 (PBR) <=> SWR0 Port 7 (PBR)
+ * WSA8845 Port 5 (VISENSE) <=> SWR0 Port 10 (SPKR_L_VI)
+ * WSA8845 Port 6 (CPS) <=> SWR0 Port 13 (CPS)
+ */
+ qcom,port-mapping = <1 2 3 7 10 13>;
+ };
+
+ /* WSA8845, Speaker South */
+ south_spkr: speaker@0,1 {
+ compatible = "sdw20217020400";
+ reg = <0 1>;
+ pinctrl-0 = <&spkr_1_sd_n_active>;
+ pinctrl-names = "default";
+ powerdown-gpios = <&tlmm 77 GPIO_ACTIVE_LOW>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "SpkrRight";
+ vdd-1p8-supply = <&vreg_l15b_1p8>;
+ vdd-io-supply = <&vreg_l2i_1p2>;
+
+ /*
+ * WSA8845 Port 1 (DAC) <=> SWR0 Port 4 (SPKR_R)
+ * WSA8845 Port 2 (COMP) <=> SWR0 Port 5 (SPKR_R_COMP)
+ * WSA8845 Port 3 (BOOST) <=> SWR0 Port 6 (SPKR_R_BOOST)
+ * WSA8845 Port 4 (PBR) <=> SWR0 Port 7 (PBR)
+ * WSA8845 Port 5 (VISENSE) <=> SWR0 Port 11 (SPKR_R_VI)
+ * WSA8845 Port 6 (CPS) <=> SWR0 Port 13 (CPS)
+ */
+ qcom,port-mapping = <4 5 6 7 11 13>;
+ };
+};
+
+&swr1 {
+ status = "okay";
+
+ /* WCD9395 RX */
+ wcd_rx: codec@0,4 {
+ compatible = "sdw20217010e00";
+ reg = <0 4>;
+
+ /*
+ * WCD9395 RX Port 1 (HPH_L/R) <=> SWR1 Port 1 (HPH_L/R)
+ * WCD9395 RX Port 2 (CLSH) <=> SWR1 Port 2 (CLSH)
+ * WCD9395 RX Port 3 (COMP_L/R) <=> SWR1 Port 3 (COMP_L/R)
+ * WCD9395 RX Port 4 (LO) <=> SWR1 Port 4 (LO)
+ * WCD9395 RX Port 5 (DSD_L/R) <=> SWR1 Port 5 (DSD_L/R)
+ * WCD9395 RX Port 6 (HIFI_PCM_L/R) <=> SWR1 Port 9 (HIFI_PCM_L/R)
+ */
+ qcom,rx-port-mapping = <1 2 3 4 5 9>;
+ };
+};
+
+&swr2 {
+ status = "okay";
+
+ /* WCD9395 TX */
+ wcd_tx: codec@0,3 {
+ compatible = "sdw20217010e00";
+ reg = <0 3>;
+
+ /*
+ * WCD9395 TX Port 1 (ADC1,2,3,4) <=> SWR2 Port 2 (TX SWR_INPUT 0,1,2,3)
+ * WCD9395 TX Port 2 (ADC3,4 & DMIC0,1) <=> SWR2 Port 2 (TX SWR_INPUT 0,1,2,3)
+ * WCD9395 TX Port 3 (DMIC0,1,2,3 & MBHC) <=> SWR2 Port 3 (TX SWR_INPUT 4,5,6,7)
+ * WCD9395 TX Port 4 (DMIC4,5,6,7) <=> SWR2 Port 4 (TX SWR_INPUT 8,9,10,11)
+ */
+ qcom,tx-port-mapping = <2 2 3 4>;
+ };
+};
+
&tlmm {
wlan_en: wlan-en-state {
pins = "gpio16";
@@ -1178,6 +1383,20 @@ sw_ctrl_default: sw-ctrl-default-state {
bias-pull-down;
};

+ spkr_0_sd_n_active: spkr-0-sd-n-active-state {
+ pins = "gpio76";
+ function = "gpio";
+ drive-strength = <16>;
+ bias-disable;
+ };
+
+ spkr_1_sd_n_active: spkr-1-sd-n-active-state {
+ pins = "gpio77";
+ function = "gpio";
+ drive-strength = <16>;
+ bias-disable;
+ };
+
key_vol_up_default: key-vol-up-default-state {
pins = "gpio101";
function = "gpio";
@@ -1207,6 +1426,13 @@ wake-n-pins {
bias-pull-up;
};
};
+
+ wcd_default: wcd-reset-n-active-state {
+ pins = "gpio161";
+ function = "gpio";
+ drive-strength = <16>;
+ bias-disable;
+ };
};

&pcie0 {

--
2.25.1