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 || COMPILE_TEST)
22 Enable this option for integrated hardware timestamping engine also
23 known as generic timestamping engine (GTE) support on NVIDIA Tegra194
24 systems-on-chip. The driver supports 352 LIC IRQs and 39 AON GPIOs
25 lines for timestamping in realtime.
27 config HTE_TEGRA194_TEST
28 tristate "NVIDIA Tegra194 HTE Test"
29 depends on (HTE_TEGRA194 || COMPILE_TEST)
31 The NVIDIA Tegra194 GTE test driver demonstrates how to use HTE
32 framework to timestamp GPIO and LIC IRQ lines.