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The function rockchip_pcie_init_port() enables link training for a controller configured in EP mode. Enabling link training is again done in rockchip_pcie_ep_probe() after that function executed rockchip_pcie_init_port(). Enabling link training only needs to be done once, and doing so at the probe stage before the controller is actually started by the user serves no purpose. Refactor this by removing the link training enablement from both rockchip_pcie_init_port() and rockchip_pcie_ep_probe() and moving it to the endpoint start operation defined with rockchip_pcie_ep_start(). Enabling the controller configuration using the PCIE_CLIENT_CONF_ENABLE bit in the same PCIE_CLIENT_CONFIG register is also moved to rockchip_pcie_ep_start() and both the controller configuration and link training enable bits are set with a single call to rockchip_pcie_write(). Link: https://lore.kernel.org/r/20241017015849.190271-11-dlemoal@kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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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.