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ae3392c0f1
The Timer Counter Block (TCB) exposes several kinds of events to the Counter framework, but not every event is meaningful on every hardware channel. Add a `watch_validate()` callback so userspace may register only the combinations actually supported: * Channel 0 (COUNTER_MCHP_EVCHN_CV, COUNTER_MCHP_EVCHN_RA) - COUNTER_EVENT_CAPTURE - COUNTER_EVENT_CHANGE_OF_STATE - COUNTER_EVENT_OVERFLOW * Channel 1 (COUNTER_MCHP_EVCHN_RB) - COUNTER_EVENT_CAPTURE * Channel 2 (COUNTER_MCHP_EVCHN_RC) - COUNTER_EVENT_THRESHOLD Any other request is rejected with `-EINVAL`. Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com> Link: https://lore.kernel.org/r/20250520-counter-tcb-v3-1-4631e2aff7ed@microchip.com Signed-off-by: William Breathitt Gray <wbg@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.