The PCI firmware specification includes support for methods for adjusting AUX power in D3cold as well as the PERST# assertion delay for a PCI device. In some hardware designs these methods might be useful for drivers to call to configure the platform properly for the hardware's expected behavior. This series introduces two new symbols as API that drivers can call if necessary. In the Microsoft Windows ecosystem, Microsoft offers a similar API wrapping these functions for device drivers to utilize. Link: https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/ns-wdm-_d3cold_aux_power_and_timing_interface Link: https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nc-wdm-d3cold_request_aux_power Link: https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nc-wdm-d3cold_request_perst_delay Mario Limonciello (3): PCI: Call PCI ACPI _DSM with consistent revision argument PCI/ACPI: Add API for specifying aux power in D3cold PCI/ACPI: Add API for specifying a PERST# assertion delay drivers/acpi/pci_root.c | 3 +- drivers/pci/pci-acpi.c | 100 ++++++++++++++++++++++++++++++++++++++- drivers/pci/pci-label.c | 4 +- drivers/pci/pcie/edr.c | 13 ++--- include/linux/pci-acpi.h | 10 ++++ 5 files changed, 119 insertions(+), 11 deletions(-) base-commit: 89cdf9d556016a54ff6ddd62324aa5ec790c05cc -- 2.34.1
