[PATCH 1/4] dt-bindings: media: max9286: Describe gpio-hog

[Jacopo Mondi]

The MAX9286 GMSL deserializer features gpio controller capabilities,
as it provides 2 GPIO lines.

As establishing a regulator that uses one of the GPIO lines and
enabling/disabling it at run-time in the max9286 won't work due to
a circular dependency on the gpio-controller/regulator creation, allow
the usage of a gpio-hog for that purpose.

The usage of the gpio-hog is required in designs where the MAX9286
GPIO lines control the remote cameras power.

Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
 .../devicetree/bindings/media/i2c/maxim,max9286.yaml     | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
index ee16102fdfe7..9d5ecfd2397c 100644
--- a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
@@ -50,6 +50,15 @@ properties:
   '#gpio-cells':
     const: 2
 
+  camvdd_en:
+    type: object
+    properties:
+      gpio-hog: true
+      gpios: true
+      output-low: true
+      line-name:
+        const: "CAMVDD_EN"
+
   maxim,reverse-channel-microvolt:
     minimum: 30000
     maximum: 200000
-- 
2.30.0