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70a7bfb1e5
PCIe r6.0, sec 6.6.1, states that the host should wait for at least 100 msec from the end of a conventional reset (PERST# is de-asserted) before sending a configuration request to ensure that the device is able to respond with a "Request Retry Status" completion. Add the PCIE_T_RRS_READY_MS macro to define this wait time and modify rockchip_pcie_host_init_port() to add this 100ms sleep after deasserting PERST# using the ep_gpio GPIO. Link: https://lore.kernel.org/linux-pci/20240413004120.1099089-3-dlemoal@kernel.org Suggested-by: Bjorn Helgaas <helgaas@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> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.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.