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DT binding allows specifying 'phy' and 'reset' properties in both host bridge and Root Port nodes, though specifying in the host bridge node is marked as deprecated. Still, the pcie-qcom driver should support both combinations for maintaining the DT backwards compatibility. For this purpose, the driver is holding the relevant pointers of these properties in two structs: struct qcom_pcie_port and struct qcom_pcie. However, this causes confusion and increases the driver complexity. Hence, move the pointers from struct qcom_pcie to struct qcom_pcie_port. As a result, even if these properties are specified in the host bridge node, the pointers will be stored in struct qcom_pcie_port as if the properties are specified in a single Root Port node. This logic simplifies the driver a lot. Suggested-by: Bjorn Helgaas <helgaas@kernel.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Reviewed-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://patch.msgid.link/20250912-pci-pwrctrl-perst-v3-2-3c0ac62b032c@oss.qualcomm.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.