[PATCH 1/7] dt-bindings: power: st: add STM32MP PM domain binding

[Patrick Delaunay <patrick.delaunay@foss.st.com>]

Add binding documentation for the power domains found on
STMicroelectronics STM32MP SoCs.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
---

 .../bindings/power/st,stm32mp-pm-domain.yaml  | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/st,stm32mp-pm-domain.yaml

diff --git a/Documentation/devicetree/bindings/power/st,stm32mp-pm-domain.yaml b/Documentation/devicetree/bindings/power/st,stm32mp-pm-domain.yaml
new file mode 100644
index 000000000000..4ab477fb4499
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/st,stm32mp-pm-domain.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/st,stm32mp-pm-domain.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32MP generic power domain
+
+maintainers:
+  - Patrick Delaunay <patrick.delaunay@foss.st.com>
+
+allOf:
+  - $ref: /schemas/power/power-domain.yaml#
+
+description: |
+  The STM32MP SoCs contain a D1 domain which defines the devices assigned to
+  Cortex A cluster, the devices in this domain are functional only when this
+  cluster is not in low power modes (Stop modes) with clock OFF.
+
+  This PM domain node represents this dependency, based on PM framework and
+  without wake-up path support.
+
+properties:
+  compatible:
+    const: st,stm32mp-pm-domain
+
+  '#power-domain-cells':
+    const: 0
+
+  power-domains:
+    maxItems: 1
+
+additionalProperties: false
+
+required:
+  - compatible
+  - '#power-domain-cells'
+  - power-domains
+
+examples:
+  - |
+    power-domain-d1 {
+      compatible = "st,stm32mp-pm-domain";
+      #power-domain-cells = <0>;
+      power-domains = <&cluster_pd>;
+    };
-- 
2.43.0