[PATCH RFC v2 6/6] arm64: dts: qcom: sdm845-google: Add basic audio support

[David Heidelberg via B4 Relay <devnull+david.ixit.cz@kernel.org>]

From: David Heidelberg <david@ixit.cz>

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@ixit.cz>
---
 arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi | 132 ++++++++++++++++++++-
 1 file changed, 130 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 9e952f9862f24..cf87b582e3997 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 +406,61 @@ 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: 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: 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 +493,35 @@ &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 +530,49 @@ &qup_uart9_rx {
 	bias-pull-up;
 };
 
 &qup_uart9_tx {
 	drive-strength = <2>;
 	bias-disable;
 };
 
+&sound {
+	compatible = "qcom,sdm845-sndcard";
+	model = "blueline";
+	pinctrl-0 = <&quat_mi2s_active>, <&quat_mi2s_sd0_active>,
+		    <&quat_mi2s_sd1_active>;
+	pinctrl-names = "default";
+
+	/* mm[0-9]-dai-link nodes must be positioned first regardless of sorting */
+	mm1-dai-link {
+		link-name = "MultiMedia1";
+
+		cpu {
+			sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
+		};
+	};
+
+	cs35l36-dai-link {
+		link-name = "Speaker Playback";
+
+		codec {
+			sound-dai = <&cs35l36_bottom>, <&cs35l36_top>;
+		};
+
+		cpu {
+			sound-dai = <&q6afedai QUATERNARY_TDM_RX_0>;
+		};
+
+		platform {
+			sound-dai = <&q6routing>;
+		};
+	};
+};
+
 &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 +601,48 @@ 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 {

-- 
2.55.0