dt-bindings: power: syscon-poweroff: get regmap from parent node

Just like syscon-reboot device, the syscon-poweroff is supposed to be a
child of syscon node, thus we can take the same approach as
syscon-poweroff: deprecate the 'regmap' field in favor of taking it from
the parent's node.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230901120057.47018-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

diff --git a/Documentation/devicetree/bindings/power/reset/syscon-poweroff.yaml b/Documentation/devicetree/bindings/power/reset/syscon-poweroff.yaml
index 3412fe7e1e806ad3e9fa7b6e28f756d8a5e1c490..d342b113fca278eed84fb1f2d03967eea5b93975 100644 (file)
--- a/Documentation/devicetree/bindings/power/reset/syscon-poweroff.yaml
+++ b/Documentation/devicetree/bindings/power/reset/syscon-poweroff.yaml
@@ -15,6 +15,9 @@ description: |+
   defined by the register map pointed by syscon reference plus the offset
   with the value and mask defined in the poweroff node.
   Default will be little endian mode, 32 bit access only.
+  The SYSCON register map is normally retrieved from the parental dt-node. So
+  the SYSCON poweroff node should be represented as a sub-node of a "syscon",
+  "simple-mfd" node.
 
 properties:
   compatible:
@@ -30,7 +33,10 @@ properties:
 
   regmap:
     $ref: /schemas/types.yaml#/definitions/phandle
-    description: Phandle to the register map node.
+    deprecated: true
+    description:
+      Phandle to the register map node. This property is deprecated in favor of
+      the syscon-poweroff node being a child of a system controller node.
 
   value:
     $ref: /schemas/types.yaml#/definitions/uint32
@@ -38,7 +44,6 @@ properties:
 
 required:
   - compatible
-  - regmap
   - offset
 
 additionalProperties: false
@@ -56,7 +61,6 @@ examples:
   - |
     poweroff {
         compatible = "syscon-poweroff";
-        regmap = <&regmapnode>;
         offset = <0x0>;
         mask = <0x7a>;
     };