arm64: dts: apple: t6050-j714c: Describe the six speaker amplifiers

arch/arm64/boot/dts/apple/t6050-j714c.dts

@@ -134,8 +134,64 @@
 	status = "disabled";
 };
 
+/*
+ * The six speaker amplifiers (ADT /arm-io/i2c1/audio-speaker* and /arm-io/i2c3/audio-speaker*,
+ * SN012776) share one shutdown line, AP pin 107 (function-reset of the first), and one fault
+ * interrupt, pin 106. The ADT's speaker-config gives each amp a transmit slot N with its
+ * voltage sense in slot 4N and current sense in 4N+2, and names the amps by speakerN:
+ * 0 left woofer 1, 1 right woofer 1, 2 left woofer 2, 3 right woofer 2, 4 left tweeter,
+ * 5 right tweeter.
+ *
+ * There is no sound card yet: the AOP audio driver is not on this branch, and the jack codec
+ * (i2c2) is not described. The amps stay in shutdown until a stream asks for them.
+ */
+/ {
+	speaker_sdz: regulator-sn012776-sdz {
+		compatible = "regulator-fixed";
+		regulator-name = "sn012776-sdz";
+		gpios = <&pinctrl_ap 107 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+};
+
 &i2c1 {
-	status = "disabled";
+	status = "okay";
+
+	speaker_left_woof1: codec@38 {
+		compatible = "ti,sn012776", "ti,tas2764";
+		reg = <0x38>;
+		SDZ-supply = <&speaker_sdz>;
+		apple,sdz-group-fail-closed;
+		#sound-dai-cells = <0>;
+		sound-name-prefix = "Left Woofer 1";
+		interrupts-extended = <&pinctrl_ap 106 IRQ_TYPE_LEVEL_LOW>;
+		ti,imon-slot-no = <2>;
+		ti,vmon-slot-no = <0>;
+	};
+
+	speaker_left_woof2: codec@39 {
+		compatible = "ti,sn012776", "ti,tas2764";
+		reg = <0x39>;
+		SDZ-supply = <&speaker_sdz>;
+		apple,sdz-group-fail-closed;
+		#sound-dai-cells = <0>;
+		sound-name-prefix = "Left Woofer 2";
+		interrupts-extended = <&pinctrl_ap 106 IRQ_TYPE_LEVEL_LOW>;
+		ti,imon-slot-no = <10>;
+		ti,vmon-slot-no = <8>;
+	};
+
+	speaker_left_tweet: codec@3a {
+		compatible = "ti,sn012776", "ti,tas2764";
+		reg = <0x3a>;
+		SDZ-supply = <&speaker_sdz>;
+		apple,sdz-group-fail-closed;
+		#sound-dai-cells = <0>;
+		sound-name-prefix = "Left Tweeter";
+		interrupts-extended = <&pinctrl_ap 106 IRQ_TYPE_LEVEL_LOW>;
+		ti,imon-slot-no = <18>;
+		ti,vmon-slot-no = <16>;
+	};
 };
 
 &i2c2 {
@@ -144,10 +200,11 @@
 
 /*
  * Only the pins a node here names are exposed, as on the J716c: pin 112's register
- * takes an SError when read. 80 is PCIe port 0's PERST#.
+ * takes an SError when read. 80 is PCIe port 0's PERST#, 106 the amps' fault interrupt and
+ * 107 their shutdown line.
  */
 &pinctrl_ap {
-	gpio-reserved-ranges = <0 80>, <81 140>;
+	gpio-reserved-ranges = <0 80>, <81 25>, <108 113>;
 };
 
 /* This board's SMC fan and power keys are not yet checked */
@@ -254,6 +311,57 @@
 
 #include "t6050-max-atc2.dtsi"
 
+/* The I2C power states have no described parent (SIO), as for i2c1 and i2c2 */
+&ps_i2c3 {
+	/delete-property/ power-domains;
+	status = "okay";
+};
+
+&i2c3 {
+	/*
+	 * The stub's pmgr clock controller has no driver. The ADT gives i2c1, i2c2 and i2c3 the same
+	 * clock-ids (4), so i2c3 takes the reference clock as i2c1 and i2c2 do.
+	 */
+	clocks = <&clkref>;
+	status = "okay";
+
+	speaker_right_woof1: codec@3b {
+		compatible = "ti,sn012776", "ti,tas2764";
+		reg = <0x3b>;
+		SDZ-supply = <&speaker_sdz>;
+		apple,sdz-group-fail-closed;
+		#sound-dai-cells = <0>;
+		sound-name-prefix = "Right Woofer 1";
+		interrupts-extended = <&pinctrl_ap 106 IRQ_TYPE_LEVEL_LOW>;
+		ti,imon-slot-no = <6>;
+		ti,vmon-slot-no = <4>;
+	};
+
+	speaker_right_woof2: codec@3c {
+		compatible = "ti,sn012776", "ti,tas2764";
+		reg = <0x3c>;
+		SDZ-supply = <&speaker_sdz>;
+		apple,sdz-group-fail-closed;
+		#sound-dai-cells = <0>;
+		sound-name-prefix = "Right Woofer 2";
+		interrupts-extended = <&pinctrl_ap 106 IRQ_TYPE_LEVEL_LOW>;
+		ti,imon-slot-no = <14>;
+		ti,vmon-slot-no = <12>;
+	};
+
+	speaker_right_tweet: codec@3d {
+		compatible = "ti,sn012776", "ti,tas2764";
+		reg = <0x3d>;
+		SDZ-supply = <&speaker_sdz>;
+		apple,sdz-group-fail-closed;
+		#sound-dai-cells = <0>;
+		sound-name-prefix = "Right Tweeter";
+		interrupts-extended = <&pinctrl_ap 106 IRQ_TYPE_LEVEL_LOW>;
+		ti,imon-slot-no = <22>;
+		ti,vmon-slot-no = <20>;
+	};
+};
+
 /*
  * ==== The left-front USB-C port (ATC1) ====
  *