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Commit 576c7218 authored by Alex Deucher's avatar Alex Deucher
Browse files

PCI: Export pcie_get_speed_cap and pcie_get_width_cap 



So drivers can use them.  This can be used to replace
duplicate code in the drm subsystem.

Acked-by: default avatarChristian König <christian.koenig@amd.com>
Acked-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 8eaf2b1f

drivers/pci/pci.c

+2 −0
Original line number Diff line number Diff line
@@ -5222,6 +5222,7 @@ enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev) 


	return PCI_SPEED_UNKNOWN;

}

EXPORT_SYMBOL(pcie_get_speed_cap);



/**

 * pcie_get_width_cap - query for the PCI device's link width capability
@@ -5240,6 +5241,7 @@ enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev) 


	return PCIE_LNK_WIDTH_UNKNOWN;

}

EXPORT_SYMBOL(pcie_get_width_cap);



/**

 * pcie_bandwidth_capable - calculate a PCI device's link bandwidth capability

include/linux/pci.h

+3 −0
Original line number Diff line number Diff line
@@ -261,6 +261,9 @@ enum pci_bus_speed { 
	PCI_SPEED_UNKNOWN		= 0xff,

};



enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev);

enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev);



struct pci_cap_saved_data {

	u16		cap_nr;

	bool		cap_extended;