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Commit bfbbed60 authored by Samuel Ahn's avatar Samuel Ahn
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Documentation: bindings: Add timestamp-valid-window item to Neutrino 



Add timestamp-valid-window property to the device tree for Neutrino.
This is used to set the EAVB Timestamp Control register to control
which TX packets are held by the Neutrino until the timestamp.

CRs-Fixed: 1056978
Change-Id: Id038a66059be1c092298861e8de61386871bef80
Signed-off-by: default avatarSamuel Ahn <sahn@codeaurora.org>
parent 1d2aab23

Documentation/devicetree/bindings/net/neutrino_avb.txt

+9 −0
Original line number Diff line number Diff line
@@ -20,6 +20,14 @@ Optional properties: 
			   means that Neutrino will stay on reset during

			   PCIe suspend

  - qcom,ntn-disable-phy: Use for devices that don't have a PHY chip

  - qcom,ntn-timestamp-valid-window: If the timestamp in the AVTP packet is

			   between the current time and the current time plus

			   the timestamp valid window, Neutrino will hold the

			   packet until the timestamp elapses. Otherwise, the

			   packet is sent immediately. Each unit is 2^24 ns,

			   or approx 16.8 ms. For example, a value of 4 would

			   mean a timestamp valid window of approximately 67

			   ms.



Example:

	qcom,ntn_avb {
@@ -41,4 +49,5 @@ Example: 
		qcom,ntn-rc-num = <1>;

		qcom,ntn-fw-load-delay-msec = <200>;

		qcom,ntn-pcierst-resx;

		qcom,ntn-timestamp-valid-window = <4>; /* 4 is approx 67 ms */

	};