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This patch has been split from the original series [1]. In some SoCs (observed on the STM32MP15) the M_CAN IP core keeps the CAN state and CAN error counters over an internal reset cycle. The STM32MP15 SoC provides an external reset, which is shared between both M_CAN cores. Add support for an optional external reset. Take care of shared resets, de-assert reset during the probe phase in m_can_class_register() and while the interface is up, assert the reset otherwise. [1] https://lore.kernel.org/all/20250923-m_can-fix-state-handling-v3-0-06d8baccadbf@pengutronix.de Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com> Link: https://patch.msgid.link/20251008-m_can-add-reset-v1-1-49f0bbf820c4@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
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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.