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dt-binding: ptp_qoriq: document "fsl,extts-fifo" property

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Documented "fsl,extts-fifo" property.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Yangbo Lu 2019-01-21 18:41:40 +08:00 committed by David S. Miller
parent 6815d8b092
commit 5ff2698b33
1 changed files with 2 additions and 0 deletions
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Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
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@ -17,6 +17,8 @@ Clock Properties:
- fsl,tmr-fiper1 Fixed interval period pulse generator.
- fsl,tmr-fiper2 Fixed interval period pulse generator.
- fsl,max-adj Maximum frequency adjustment in parts per billion.
- fsl,extts-fifo The presence of this property indicates hardware
support for the external trigger stamp FIFO.
These properties set the operational parameters for the PTP
clock. You must choose these carefully for the clock to work right.