Add an entry for the MT8186 based Rusty Chromebook, also known as the
Lenovo 100e Chromebook Gen 4.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
 Documentation/devicetree/bindings/arm/mediatek.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index fafd5e18f640..5e5834d9865f 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -206,6 +206,12 @@ properties:
           - enum:
               - mediatek,mt8183-pumpkin
           - const: mediatek,mt8183
+      - description: Google Rusty (Lenovo 100e Chromebook Gen 4)
+        items:
+          - const: google,steelix-sku196608
+          - const: google,steelix-sku196609
+          - const: google,steelix
+          - const: mediatek,mt8186
       - description: Google Steelix (Lenovo 300e Yoga Chromebook Gen 4)
         items:
           - enum:
-- 
2.42.0.655.g421f12c284-goog