[PATCH 2/2] dt-bindings: backlight: document new property default-brightness-level

[Alexandru Ardelean]

From: Yannick Fertre <yannick.fertre at foss.st.com>

Add documentation for new default-brightness-level property.

Reviewed-by: Philippe CORNU <philippe.cornu at foss.st.com>
Signed-off-by: Yannick Fertre <yannick.fertre at foss.st.com>
Signed-off-by: Alexandru Ardelean <alex at shruggie.ro>
---

Link to original patch:
  https://github.com/STMicroelectronics/linux/commit/c4067d7bd883c6fa14ffd49892c4ce663cdafe98

 .../bindings/leds/backlight/gpio-backlight.yaml          | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
index 584030b6b0b9..b96c08cff0f0 100644
--- a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
@@ -23,6 +23,15 @@ properties:
     description: enable the backlight at boot.
     type: boolean
 
+  default-brightness-level:
+    description:
+      The default brightness level (index into the array defined by the
+      "brightness-levels" property).
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+dependencies:
+  default-brightness-level: [ "brightness-levels" ]
+
 required:
   - compatible
   - gpios
-- 
2.40.1