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serial: samsung: dt-bindings: Add reg-io-width compatible 

Add a description for reg-io-width options for the samsung serial
UART peripheral.

Signed-off-by: Hyunki Koo <hyunki00.koo@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200506080242.18623-2-hyunki00.koo@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hyunki Koo 2020-05-06 17:02:39 +09:00 committed by Greg Kroah-Hartman
parent 8fba6c0c4c
commit 7ad3bee4b3
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/serial/samsung_uart.yaml
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@ -29,6 +29,14 @@ properties:
reg: reg:
maxItems: 1 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: clocks:
minItems: 2 minItems: 2
maxItems: 5 maxItems: 5