PCI: Add support for ACPI _RST reset method

Browse source

_RST is a standard ACPI method that performs a function level reset of a
device (ACPI v6.3, sec 7.3.25).

Add pci_dev_acpi_reset() to probe for _RST method and execute if present.
The default priority of this reset is set to below device-specific and
above hardware resets.

Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20210817180500.1253-9-ameynarkhede03@gmail.com
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>

...

This commit is contained in:

Shanker Donthineni 2021-08-17 23:34:59 +05:30 • committed by Bjorn Helgaas

parent 375553a932

commit 6937b7dd43

4 changed files with 31 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

23

drivers/pci/pci-acpi.c

View file

1

drivers/pci/pci.c

View file

6

drivers/pci/pci.h

View file

2

include/linux/pci.h

View file