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Documentation: bindings: define DT prop to disable PTP TSC sync logic

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define DT prop to disable PTP TSC sync logic

Bug 4044583
Bug 3896607

Change-Id: I51778db4bd4203589c48bf5b3bdb0d49547fec55
Signed-off-by: Sheetal Tigadoli <stigadoli@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2877071
Reviewed-by: Sumeet Gupta <sumeetg@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Sheetal Tigadoli
2023-03-26 05:31:36 +00:00
committed by mobile promotions
parent 182768fd7b
commit 0f58bdf322
1 changed files with 4 additions and 1 deletions
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5
Documentation/devicetree/bindings/nvpps/nvpps.txt
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@@ -29,6 +29,8 @@ Optional properties:
The value is a 16bit hexa-decimal value. The minimum value(0x1F) supported 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. correspond to 1us and max value(0xFFFF) supported correspond to approx 2.1ms.
If unspecified, NvPPS driver uses 0x26C(corresponding to 20us) by default If unspecified, NvPPS driver uses 0x26C(corresponding to 20us) by default
- 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.
Example: Example:
@@ -57,7 +59,8 @@ nvpps {
interface = "mgbe2_0"; interface = "mgbe2_0";
sec_interface = "eqos_0"; sec_interface = "eqos_0";
ptp_tsc_k_int = /bits/ 8 <0x70>; ptp_tsc_k_int = /bits/ 8 <0x70>;
ptp_tsc_lock_threshold = /bits/ 16 <0x26C> ptp_tsc_lock_threshold = /bits/ 16 <0x26C>;
ptp_tsc_sync_dis;
}; };
Example: GPIO as optional Example: GPIO as optional