1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "Hardware Timestamping Engine (HTE) Support"
5 Hardware Timestamping Engine (HTE) Support.
7 Some devices provide a hardware timestamping engine which can
8 timestamp certain device lines/signals in realtime. It comes with a
9 benefit for the applications needing accurate timestamping event with
10 less jitter. This framework provides a generic interface to such HTE
11 providers and consumer devices.
18 tristate "NVIDIA Tegra194 HTE Support"
19 depends on ARCH_TEGRA_194_SOC
21 Enable this option for integrated hardware timestamping engine also
22 known as generic timestamping engine (GTE) support on NVIDIA Tegra194
23 systems-on-chip. The driver supports 352 LIC IRQs and 39 AON GPIOs
24 lines for timestamping in realtime.
26 config HTE_TEGRA194_TEST
27 tristate "NVIDIA Tegra194 HTE Test"
28 depends on HTE_TEGRA194
30 The NVIDIA Tegra194 GTE test driver demonstrates how to use HTE
31 framework to timestamp GPIO and LIC IRQ lines.