Add a exported function to convert lnkctl2speed to enum pci_bus_speed, so that other kernel drivers can use it. Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@xxxxxxxxxxxxxxxx> --- drivers/pci/pci.c | 12 ++++++++++++ include/linux/pci.h | 1 + 2 files changed, 13 insertions(+) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 869d204a70a3..75505437a9c9 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -6011,6 +6011,18 @@ int pcie_link_speed_mbps(struct pci_dev *pdev) } EXPORT_SYMBOL(pcie_link_speed_mbps); +/** + * pci_lnkctl2_bus_speed - converts lnkctl2 speed to pci_bus_speed + * @speed: LNKCAP2 SLS value + * + * Returns pci_bus_speed + */ +enum pci_bus_speed pci_lnkctl2_bus_speed(int speed) +{ + return pcie_link_speed[speed]; +} +EXPORT_SYMBOL(pci_lnkctl2_bus_speed); + /** * pcie_bandwidth_available - determine minimum link settings of a PCIe * device and its bandwidth limitation diff --git a/include/linux/pci.h b/include/linux/pci.h index 9ae199c1e698..b84473f228c8 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1653,6 +1653,7 @@ unsigned char pci_bus_max_busnr(struct pci_bus *bus); void pci_setup_bridge(struct pci_bus *bus); resource_size_t pcibios_window_alignment(struct pci_bus *bus, unsigned long type); +enum pci_bus_speed pci_lnkctl2_bus_speed(int speed); #define PCI_VGA_STATE_CHANGE_BRIDGE (1 << 0) #define PCI_VGA_STATE_CHANGE_DECODES (1 << 1) -- 2.34.1