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From:   Hyunki Koo <hyunki00.koo@samsung.com>
To:     gregkh@linuxfoundation.org, krzk@kernel.org
Cc:     Hyunki Koo <hyunki00.koo@samsung.com>,
        Rob Herring <robh+dt@kernel.org>, linux-serial@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v5 1/2] dt-bindings: serial: Add reg-io-width compatible
Date:   Mon,  6 Apr 2020 19:31:26 +0900
Message-Id: <20200406103127.17105-2-hyunki00.koo@samsung.com>
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Add a description for reg-io-width options for the samsung serial
UART peripheral.

Signed-off-by: Hyunki Koo <hyunki00.koo@samsung.com>
---
 Documentation/devicetree/bindings/serial/samsung_uart.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 9d2ce347875b..a57b1233c691 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -29,6 +29,14 @@ properties:
   reg:
     maxItems: 1
 
+  reg-io-width:
+    description: |
+      The size (in bytes) of the IO accesses that should be performed
+      on the device.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - enum: [ 1, 4 ]
+
   clocks:
     minItems: 2
     maxItems: 5
-- 
2.15.0.rc1