[PATCH v4 1/2] dt-bindings: serial: pl011: Add a reg-io-width parameter

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Some of the implementations support only 32-bit accesses.
Add a parameter reg-io-width for such platforms.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxx>
---
v4
Fix the bindings

 Documentation/devicetree/bindings/serial/pl011.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/pl011.yaml b/Documentation/devicetree/bindings/serial/pl011.yaml
index d8aed84abcd3..80af72859876 100644
--- a/Documentation/devicetree/bindings/serial/pl011.yaml
+++ b/Documentation/devicetree/bindings/serial/pl011.yaml
@@ -94,6 +94,12 @@ properties:
   resets:
     maxItems: 1
 
+  reg-io-width:
+    description:
+      The size (in bytes) of the IO accesses that should be performed
+      on the device.
+    enum: [1, 4]
+
 required:
   - compatible
   - reg
-- 
2.17.1




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