1# SPDX-License-Identifier: GPL-2.0-only
 2menuconfig HTE
 3	bool "Hardware Timestamping Engine (HTE) Support"
 4	help
 5	  Hardware Timestamping Engine (HTE) Support.
 6
 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.
12
13	  If unsure, say no.
14
15if HTE
16
17config HTE_TEGRA194
18	tristate "NVIDIA Tegra194 HTE Support"
19	depends on (ARCH_TEGRA_194_SOC || COMPILE_TEST)
20	depends on GPIOLIB
21	help
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.
26
27config HTE_TEGRA194_TEST
28        tristate "NVIDIA Tegra194 HTE Test"
29        depends on (HTE_TEGRA194 || COMPILE_TEST)
30        help
31	  The NVIDIA Tegra194 GTE test driver demonstrates how to use HTE
32	  framework to timestamp GPIO and LIC IRQ lines.
33
34endif