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 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 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 35