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2022-06-09docs: Move the HTE documentation to driver-api/Jonathan Corbet3-150/+0
The hardware timestamp engine documentation is driver API material, and really belongs in the driver-API book; move it there. Cc: Thierry Reding <treding@nvidia.com> Acked-by: Dipen Patel <dipenp@nvidia.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-05-04hte: Add Tegra194 HTE kernel providerDipen Patel2-0/+71
Tegra194 device has multiple HTE instances also known as GTE (Generic Hardware Timestamping Engine) which can timestamp subset of SoC lines and signals. This provider driver focuses on IRQ and GPIO lines and exposes timestamping ability on those lines to the consumers through HTE subsystem. Also, with this patch, added: - documentation about this provider and its capabilities at Documentation/hte. - Compilation support in Makefile and Kconfig Signed-off-by: Dipen Patel <dipenp@nvidia.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2022-05-03Documentation: Add HTE subsystem guideDipen Patel1-0/+79
Adding hte document which can help understand various APIs implemented in HTE framework for the HTE producers and the consumers. Signed-off-by: Dipen Patel <dipenp@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>