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devicetree:bindings:nvpps: update doc to include Thor

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update nvpps documentation to include Thor based platforms

Bug 5082436

Signed-off-by: Sheetal Tigadoli <stigadoli@nvidia.com>
Change-Id: I4d26dab5d5eb40df449c819912a3143360a97f51
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3293986
(cherry picked from commit 8dd44d031ce394923f4e02a07befcb162eedd714)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3293842
Reviewed-by: Amlan Kundu <akundu@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Sheetal Tigadoli
2025-01-30 17:55:33 +00:00
committed by Jon Hunter
parent 92ed8780d2
commit 7172871ef3
1 changed files with 3 additions and 0 deletions
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Documentation/devicetree/bindings/nvpps/nvpps.txt
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@@ -28,12 +28,15 @@ Optional properties:
or locking TSC time with PTP time domain.
The value is a 8bit hexa-decimal value. If unspecified, NvPPS driver uses
0x70 as default value
This field is not used for Thor based platforms
- ptp_tsc_lock_threshold: specifies the threshold value which is used by HW to determine
if the TSC PTP sync/Lock is lost. The lock is deemed to be lost if the HW
determined absolute diff between PTP & TSC time exceed this value.
The value is a 16bit hexa-decimal value. The minimum value(0x1F) supported
correspond to 1us and max value(0xFFFF) supported correspond to approx 2.1ms.
If unspecified, NvPPS driver uses 0x26C(corresponding to 20us) by default
On Thor based platforms, Minimum value(1) supported correspond to 1ns and
Max value(16777215) correspond to approx 16.77ms
- ptp_tsc_sync_dis: boolean flag to indicate if nvpps should disable PTP TSC sync logic.
The default behaviour is to keep PTP TSC sync logic enabled.
- reg: specifies start address and registers count details of TSC module. It is only applicable for Orin.