[PATCH] dt-bindings: pinctrl: mt8192: Add mediatek, pull-down-adv property

[Nícolas F. R. A. Prado]

Add the mediatek,pull-down-adv property to the pinctrl-mt8192 dt-binding
to allow configuring pull-down resistors on the pins of MT8192. It is
the same as in mt8183-pinctrl.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>

---

 .../devicetree/bindings/pinctrl/pinctrl-mt8192.yaml   | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml
index c90a132fbc79..e462f49eae6f 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml
@@ -117,6 +117,17 @@ patternProperties:
             $ref: /schemas/types.yaml#/definitions/uint32
             enum: [0, 1, 2, 3]
 
+          mediatek,pull-down-adv:
+            description: |
+              Pull down settings for 2 pull resistors, R0 and R1. User can
+              configure those special pins. Valid arguments are described as below:
+              0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled.
+              1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled.
+              2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled.
+              3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
+            $ref: /schemas/types.yaml#/definitions/uint32
+            enum: [0, 1, 2, 3]
+
           bias-pull-down: true
 
           bias-pull-up: true
-- 
2.36.0