[PATCH] dt-bindings: media: imx7-csi: Document i.MX8M power-domains property

[Marek Vasut]

The power-domains property is mandatory on i.MX8M Quad and Mini.
Document the property and mark it as required on the aforementioned
variants of the IP, present in those SoCs.

Signed-off-by: Marek Vasut <marex at denx.de>
---
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Hans Verkuil <hverkuil-cisco at xs4all.nl>
Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Cc: Lucas Stach <l.stach at pengutronix.de>
Cc: Martin Kepplinger <martin.kepplinger at puri.sm>
Cc: Mauro Carvalho Chehab <mchehab at kernel.org>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: linux-arm-kernel at lists.infradead.org
Cc: NXP Linux Team <linux-imx at nxp.com>
To: devicetree at vger.kernel.org
---
 .../devicetree/bindings/media/nxp,imx7-csi.yaml   | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/nxp,imx7-csi.yaml b/Documentation/devicetree/bindings/media/nxp,imx7-csi.yaml
index 4f7b782653361..358019e85d907 100644
--- a/Documentation/devicetree/bindings/media/nxp,imx7-csi.yaml
+++ b/Documentation/devicetree/bindings/media/nxp,imx7-csi.yaml
@@ -37,6 +37,9 @@ properties:
     items:
       - const: mclk
 
+  power-domains:
+    maxItems: 1
+
   port:
     $ref: /schemas/graph.yaml#/properties/port
 
@@ -50,6 +53,18 @@ required:
 
 additionalProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx8mq-csi
+              - fsl,imx8mm-csi
+    then:
+      required:
+        - power-domains
+
 examples:
   - |
     #include <dt-bindings/clock/imx7d-clock.h>
-- 
2.35.1