All M1 Mac devices have 2 SoC connected USB-C ports and use cd321x USB
type C port switch and power deliver controllers. I2c bus and addresses
configuration are for all devices equal.
The iMac (24-inch, 2021) has a configuration with 2 additional USB-C
ports (j456) using two additional cd321x controllers.
Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Tested-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Hector Martin <marcan@marcan.st>
        };
 };
 
+&i2c0 {
+       hpm2: usb-pd@3b {
+               compatible = "apple,cd321x";
+               reg = <0x3b>;
+               interrupt-parent = <&pinctrl_ap>;
+               interrupts = <106 IRQ_TYPE_LEVEL_LOW>;
+               interrupt-names = "irq";
+       };
+
+       hpm3: usb-pd@3c {
+               compatible = "apple,cd321x";
+               reg = <0x3c>;
+               interrupt-parent = <&pinctrl_ap>;
+               interrupts = <106 IRQ_TYPE_LEVEL_LOW>;
+               interrupt-names = "irq";
+       };
+};
+
 /*
  * Force the bus number assignments so that we can declare some of the
  * on-board devices and properties that are populated by the bootloader
 
        status = "okay";
 };
 
+&i2c0 {
+       hpm0: usb-pd@38 {
+               compatible = "apple,cd321x";
+               reg = <0x38>;
+               interrupt-parent = <&pinctrl_ap>;
+               interrupts = <106 IRQ_TYPE_LEVEL_LOW>;
+               interrupt-names = "irq";
+       };
+
+       hpm1: usb-pd@3f {
+               compatible = "apple,cd321x";
+               reg = <0x3f>;
+               interrupt-parent = <&pinctrl_ap>;
+               interrupts = <106 IRQ_TYPE_LEVEL_LOW>;
+               interrupt-names = "irq";
+       };
+};
+
 /*
  * Force the bus number assignments so that we can declare some of the
  * on-board devices and properties that are populated by the bootloader