[PATCH v3 3/3] dt-bindings: memory-controllers: gpmc-child: add wait-pin polarity

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From: Benedikt Niedermayr <benedikt.niedermayr@xxxxxxxxxxx>

The GPMC controller has the ability to configure the polarity for the
wait pin. The current properties do not allow this configuration.
This binding directly configures the WAITPIN<X>POLARITY bit
in the GPMC_CONFIG register.

Signed-off-by: Benedikt Niedermayr <benedikt.niedermayr@xxxxxxxxxxx>
---
 .../bindings/memory-controllers/ti,gpmc-child.yaml          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
index 6e3995bb1630..a115b544a407 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
@@ -230,6 +230,12 @@ properties:
       Wait-pin used by client. Must be less than "gpmc,num-waitpins".
     $ref: /schemas/types.yaml#/definitions/uint32
 
+  gpmc,wait-pin-active-low:
+    description: |
+      Set the polarity for the selected wait pin to active low.
+      Defaults to active high if this is not set.
+    type: boolean
+
   gpmc,wait-on-read:
     description: Enables wait monitoring on reads.
     type: boolean
-- 
2.25.1




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