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authorYangbo Lu <yangbo.lu@nxp.com>2019-01-21 18:41:40 +0800
committerDavid S. Miller <davem@davemloft.net>2019-01-22 20:21:57 -0800
commit5ff2698b3301c37246f1f79dc9bdcd378b000dbe (patch)
treefa46eca786ff309b6dc2cdf9cb9315ae85451e74
parent6815d8b09282c1df8e016bd2fabf25ada6d4462b (diff)
dt-binding: ptp_qoriq: document "fsl,extts-fifo" property
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>
-rw-r--r--Documentation/devicetree/bindings/ptp/ptp-qoriq.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt b/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
index c5d0e7998e2b..8e7f8551d190 100644
--- a/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
+++ b/Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
@@ -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.