John Baldwin 82d6927712 pci: Clear active PME# and disable PME# generation ...

The PCI power management specification requires that the OS clear any
pending PME# interrupt and generation of PME# interrupts during
"initial operating system load".  Note that clearing a pending PME#
interrupt requires writing a 1 to the Read/Write-Clear PME bit in the
power management status register.  To handle the boot time case, clear
PME# state in pci_read_cap() when scanning new PCI devices.  This
should also cover hotplug devices.

In addition, clear this state on every PCI device after resume from
sleep in pci_resume_child before invoking the driver's DEVICE_RESUME
method.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D49222

2025-03-27 16:53:24 -04:00

..

card_if.m

…

cardbus_cis.c

…

cardbus_cis.h

…

cardbus_device.c

…

cardbus.c

pci: Clear active PME# and disable PME# generation

2025-03-27 16:53:24 -04:00

cardbusreg.h

…

cardbusvar.h

…

power_if.m

…