drm/pci: Use PCI Express Capability accessors

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Use PCI Express Capability access functions to simplify this code a bit.
For non-PCIe devices or pre-PCIe 3.0 devices that don't implement the Link
Capabilities 2 register, pcie_capability_read_dword() reads a zero.

Since we're only testing whether the bits we care about are set, there's no
need to mask out the other bits we *don't* care about.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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Bjorn Helgaas 2013-01-04 19:10:42 +00:00 • committed by Dave Airlie

parent f8acf6f4c8

commit dd66cc2e1f

1 changed files with 5 additions and 16 deletions

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drivers/gpu/drm/drm_pci.c

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