diff mbox series

[v7,2/2] dt-bindings: memory-controllers: gpmc-child: add wait-pin polarity

Message ID 20221005142224.287982-3-benedikt.niedermayr@siemens.com
State Superseded
Headers show
Series None | expand

Commit Message

Benedikt Niedermayr Oct. 5, 2022, 2:22 p.m. UTC
From: Benedikt Niedermayr <benedikt.niedermayr@siemens.com>

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 by setting the "ti,wait-pin-polarity"
dt-property.

Signed-off-by: Benedikt Niedermayr <benedikt.niedermayr@siemens.com>
---
 .../bindings/memory-controllers/ti,gpmc-child.yaml         | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Rob Herring (Arm) Oct. 6, 2022, 6:54 p.m. UTC | #1
On Wed, 05 Oct 2022 16:22:24 +0200, B. Niedermayr wrote:
> From: Benedikt Niedermayr <benedikt.niedermayr@siemens.com>
> 
> 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 by setting the "ti,wait-pin-polarity"
> dt-property.
> 
> Signed-off-by: Benedikt Niedermayr <benedikt.niedermayr@siemens.com>
> ---
>  .../bindings/memory-controllers/ti,gpmc-child.yaml         | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
index 6e3995bb1630..4a257fac577e 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc-child.yaml
@@ -230,6 +230,13 @@  properties:
       Wait-pin used by client. Must be less than "gpmc,num-waitpins".
     $ref: /schemas/types.yaml#/definitions/uint32
 
+  ti,wait-pin-polarity:
+    description: |
+      Set the desired polarity for the selected wait pin.
+      0 for active low, 1 for active high.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+
   gpmc,wait-on-read:
     description: Enables wait monitoring on reads.
     type: boolean