cf7ef0e302
commit 0fc75d87454195885bd1a81fc7e6ce92572b6109 upstream. Currently enabling PCI_EXP_RTSTA_PME bit in PCI_EXP_RTCTL register does nothing. This is because PCIe PME driver expects to receive PCIe interrupt defined in PCI_EXP_FLAGS_IRQ register, but aardvark hardware does not trigger PCIe INTx/MSI interrupt for PME event, rather it triggers custom aardvark interrupt which this driver is not processing yet. Fix this issue by handling PME interrupt in advk_pcie_handle_int() and chaining it to PCIe interrupt 0 with generic_handle_domain_irq() (since aardvark sets PCI_EXP_FLAGS_IRQ to zero). With this change PCIe PME driver finally starts receiving PME interrupt. Link: https://lore.kernel.org/r/20220110015018.26359-17-kabel@kernel.org Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <kabel@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Marek Behún <kabel@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 Restructured Text 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.