# SPDX-License-Identifier: GPL-2.0-only menuconfig HTE bool "Hardware Timestamping Engine (HTE) Support" help Hardware Timestamping Engine (HTE) Support. Some devices provide a hardware timestamping engine which can timestamp certain device lines/signals in realtime. It comes with a benefit for the applications needing accurate timestamping event with less jitter. This framework provides a generic interface to such HTE providers and consumer devices. If unsure, say no. if HTE config HTE_TEGRA194 tristate "NVIDIA Tegra194 HTE Support" depends on ARCH_TEGRA_194_SOC help Enable this option for integrated hardware timestamping engine also known as generic timestamping engine (GTE) support on NVIDIA Tegra194 systems-on-chip. The driver supports 352 LIC IRQs and 39 AON GPIOs lines for timestamping in realtime. config HTE_TEGRA194_TEST tristate "NVIDIA Tegra194 HTE Test" depends on HTE_TEGRA194 help The NVIDIA Tegra194 GTE test driver demonstrates how to use HTE framework to timestamp GPIO and LIC IRQ lines. endif