[PATCH RFC 6/6] arm64: dts: qcom: sdm845-google: Add basic audio support
From: David Heidelberg via B4 Relay
Date: Sun Jul 05 2026 - 16:08:06 EST
From: David Heidelberg <david@xxxxxxx>
Introduce support for sound card and wire two CS35L36 audio codecs for
top and bottom speakers.
Inspired by commit from Joel Selvaraj.
Signed-off-by: David Heidelberg <david@xxxxxxx>
---
arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi | 133 ++++++++++++++++++++-
1 file changed, 131 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi
index b2dc0327dff85..d00fee7ebd424 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi
@@ -2,16 +2,18 @@
/dts-v1/;
#include <dt-bindings/arm/qcom,ids.h>
#include <dt-bindings/dma/qcom-gpi.h>
#include <dt-bindings/input/linux-event-codes.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include <dt-bindings/sound/qcom,q6afe.h>
+#include <dt-bindings/sound/qcom,q6asm.h>
#include "sdm845.dtsi"
#include "pm8998.dtsi"
#include "pmi8998.dtsi"
/delete-node/ &mpss_region;
/delete-node/ &venus_mem;
/delete-node/ &cdsp_mem;
@@ -404,19 +406,63 @@ nfc@28 {
firmware-gpios = <&tlmm 79 GPIO_ACTIVE_HIGH>;
pinctrl-0 = <&nfc_int_default &nfc_enable_default>;
pinctrl-names = "default";
};
};
&i2c12 {
- /* Bottom spkr (right) CS35L36 @ 40 */
+ status = "okay";
+
+ /* CS35L36, Bottom Speaker */
+ cs35l36_bottom: audio-codec@40 {
+ compatible = "cirrus,cs35l36";
+ reg = <0x40>;
+ reset-gpios = <&tlmm 112 GPIO_ACTIVE_HIGH>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "Right"; /* Bottom */
+ VA-supply = <&vreg_s4a_1p8>;
+ interrupts-extended = <&tlmm 115 IRQ_TYPE_LEVEL_LOW>;
+
+ pinctrl-0 = <&cs35l36_bottom_default_state>;
+ pinctrl-names = "default";
+
+ cirrus,boost-ind-nanohenry = <1000>;
+ cirrus,boost-ctl-select = <1>;
+ cirrus,boost-ctl-millivolt = <10000>;
+ cirrus,boost-peak-milliamp = <3700>;
+ cirrus,temp-warn-threshold = <1>;
+ cirrus,multi-amp-mode;
+ cirrus,irq-drive-select = <0>;
+ cirrus,irq-gpio-select = <0>;
+ };
- /* Top spkr (left) CS35L36 @ 41 */
+ /* CS35L36, Top Speaker */
+ cs35l36_top: audio-codec@41 {
+ compatible = "cirrus,cs35l36";
+ reg = <0x41>;
+ reset-gpios = <&tlmm 75 GPIO_ACTIVE_HIGH>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "Left"; /* Top */
+ VA-supply = <&vreg_s4a_1p8>;
+ interrupts-extended = <&tlmm 40 IRQ_TYPE_LEVEL_LOW>;
+
+ pinctrl-0 = <&cs35l36_top_default_state>;
+ pinctrl-names = "default";
+
+ cirrus,boost-ind-nanohenry = <1000>;
+ cirrus,boost-ctl-select = <0x01>;
+ cirrus,boost-ctl-millivolt = <10000>;
+ cirrus,boost-peak-milliamp = <3700>;
+ cirrus,temp-warn-threshold = <1>;
+ cirrus,multi-amp-mode;
+ cirrus,irq-drive-select = <0>;
+ cirrus,irq-gpio-select = <0>;
+ };
};
&ipa {
firmware-name = "qcom/sdm845/Google/blueline/ipa_fws.mbn";
memory-region = <&ipa_fw_mem>;
status = "okay";
};
@@ -449,16 +495,35 @@ &pm8998_resin {
};
&pmi8998_charger {
monitored-battery = <&battery>;
status = "okay";
};
+&q6afedai {
+ dai@72 {
+ reg = <QUATERNARY_TDM_RX_0>;
+
+ qcom,tdm-sync-mode = <0>;
+ qcom,tdm-sync-src = <1>;
+ qcom,tdm-data-out = <0>;
+ qcom,tdm-invert-sync = <0>;
+ qcom,tdm-data-delay = <1>;
+ qcom,tdm-data-align = <0>;
+ };
+};
+
+&q6asmdai {
+ dai@0 {
+ reg = <MSM_FRONTEND_DAI_MULTIMEDIA1>;
+ };
+};
+
&qupv3_id_0 {
status = "okay";
};
&qupv3_id_1 {
status = "okay";
};
@@ -467,16 +532,48 @@ &qup_uart9_rx {
bias-pull-up;
};
&qup_uart9_tx {
drive-strength = <2>;
bias-disable;
};
+&sound {
+ compatible = "qcom,sdm845-sndcard";
+ model = "Google Pixel 3";
+ pinctrl-0 = <&quat_mi2s_active>, <&quat_mi2s_sd0_active>,
+ <&quat_mi2s_sd1_active>;
+ pinctrl-names = "default";
+
+ mm1-dai-link {
+ link-name = "MultiMedia1";
+
+ cpu {
+ sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
+ };
+ };
+
+ cs35l36-dai-link {
+ link-name = "Speaker Playback";
+
+ cpu {
+ sound-dai = <&q6afedai QUATERNARY_TDM_RX_0>;
+ };
+
+ platform {
+ sound-dai = <&q6routing>;
+ };
+
+ codec {
+ sound-dai = <&cs35l36_bottom>, <&cs35l36_top>;
+ };
+ };
+};
+
&tlmm {
gpio-reserved-ranges = < 0 4>, /* SPI (Intel MNH Pixel Visual Core) */
<81 4>; /* SPI (most likely Fingerprint Cards FPC1075) */
nfc_int_default: nfc-int-default-state {
pins = "gpio63";
function = "gpio";
drive-strength = <2>;
@@ -505,16 +602,48 @@ touchscreen_pins: ts-pins-gpio-state {
};
touchscreen_i2c_pins: qup-i2c2-gpio-state {
pins = "gpio27", "gpio28";
function = "gpio";
drive-strength = <2>;
bias-disable;
};
+
+ cs35l36_bottom_default_state: cs35l36-bottom-default-state {
+ reset-pins {
+ pins = "gpio112";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ irq-pins {
+ pins = "gpio115";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
+ cs35l36_top_default_state: cs35l36-top-default-state {
+ irq-pins {
+ pins = "gpio40";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ reset-pins {
+ pins = "gpio75";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+ };
};
&uart6 {
pinctrl-0 = <&qup_uart6_4pin>;
status = "okay";
bluetooth {
--
2.53.0