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| author | Yinghai Lu <yinghai@kernel.org> | 2014-01-03 18:28:06 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-01-07 11:36:55 -0700 |
| commit | 545b0a746b79f54a45cd3b595dce67abbf35233f (patch) | |
| tree | da9b8ceb1a94fe321bfd5308d557d2f09533e449 /drivers/char/pc8736x_gpio.c | |
| parent | 5acc4ce44cd0a9cf5dbcfe50085708e9156e0177 (diff) | |
| download | blackbird-op-linux-545b0a746b79f54a45cd3b595dce67abbf35233f.tar.gz blackbird-op-linux-545b0a746b79f54a45cd3b595dce67abbf35233f.zip | |
agp/intel: Support 64-bit GMADR
Per the Intel 915G/915GV/... Chipset spec (document number 301467-005),
GMADR is a standard PCI BAR.
The PCI core reads GMADR at enumeration-time. Use pci_bus_address()
instead of reading it again in the driver. This works correctly for both
32-bit and 64-bit BARs. The spec above only mentions 32-bit GMADR, but
Yinghai's patch (link below) indicates some devices have a 64-bit GMADR.
[bhelgaas: reworked starting from http://lkml.kernel.org/r/1385851238-21085-13-git-send-email-yinghai@kernel.org]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/char/pc8736x_gpio.c')
0 files changed, 0 insertions, 0 deletions
