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authorYangbo Lu <yangbo.lu@nxp.com>2019-01-21 11:41:40 +0100
committerDavid S. Miller <davem@davemloft.net>2019-01-23 05:21:57 +0100
commit5ff2698b3301c37246f1f79dc9bdcd378b000dbe (patch)
treefa46eca786ff309b6dc2cdf9cb9315ae85451e74 /Documentation
parentptp_qoriq: support external trigger stamp FIFO (diff)
downloadlinux-5ff2698b3301c37246f1f79dc9bdcd378b000dbe.tar.xz
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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>
Diffstat (limited to 'Documentation')
-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.