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# 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 || COMPILE_TEST)
depends on GPIOLIB
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 || COMPILE_TEST)
help
The NVIDIA Tegra194 GTE test driver demonstrates how to use HTE
framework to timestamp GPIO and LIC IRQ lines.
endif