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
