dt-bindings: soc: apple: Add Apple PMGR misc controls

Certain Apple SoCs include additional PMGR power states that are
controlled via a different "misc" control block. On existing SoCs, this
includes the fabric and memory controller state.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Sasha Finkelstein <k@chaosmail.tech>
Reviewed-by: Joshua Peisach <jpeisach@ubuntu.com>
Link: https://patch.msgid.link/20260705-pmgr-misc-v3-1-51b75fed6f73@chaosmail.tech
Signed-off-by: Sven Peter <sven@kernel.org>

Documentation/devicetree/bindings/soc/apple/apple,t6000-pmgr-misc.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/apple/apple,t6000-pmgr-misc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple SoC PMGR Misc Power States
+
+maintainers:
+  - Sasha Finkelstein <k@chaosmail.tech>
+
+description: |
+  Certain Apple SoCs include additional PMGR power states that are controlled
+  via a different "misc" control block. This includes the fabric and memory
+  controller states.
+
+properties:
+  compatible:
+    enum:
+      - apple,t6000-pmgr-misc
+      - apple,t6020-pmgr-misc
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: fabric-ps
+      - const: dcs-ps
+
+required:
+  - compatible
+  - reg
+  - reg-names
+
+additionalProperties: false
+
+examples:
+  - |
+    power-management@8e20c000 {
+        compatible = "apple,t6000-pmgr-misc";
+        reg = <0x8e20c000 0x400>,
+              <0x8e20c800 0x400>;
+        reg-names = "fabric-ps", "dcs-ps";
+    };

MAINTAINERS

@@ -2607,6 +2607,7 @@ F:	Documentation/devicetree/bindings/power/apple*
 F:	Documentation/devicetree/bindings/power/reset/apple,smc-reboot.yaml
 F:	Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml
 F:	Documentation/devicetree/bindings/rtc/apple,smc-rtc.yaml
+F:	Documentation/devicetree/bindings/soc/apple/apple,t6000-pmgr-misc.yaml
 F:	Documentation/devicetree/bindings/spi/apple,spi.yaml
 F:	Documentation/devicetree/bindings/spmi/apple,spmi.yaml
 F:	Documentation/devicetree/bindings/usb/apple,dwc3.yaml