| # SPDX-License-Identifier: GPL-2.0-only |
| bool "Hardware Timestamping Engine (HTE) Support" |
| 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. |
| tristate "NVIDIA Tegra194 HTE Support" |
| depends on ARCH_TEGRA_194_SOC |
| 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. |
| tristate "NVIDIA Tegra194 HTE Test" |
| The NVIDIA Tegra194 GTE test driver demonstrates how to use HTE |
| framework to timestamp GPIO and LIC IRQ lines. |