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drm/radeon: Use PCI Express Capability accessors

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Use PCI Express Capability access functions to simplify radeon driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jiang Liu 2012-07-24 17:20:30 +08:00 committed by Bjorn Helgaas
parent 5548bfd0ee
commit 32195aec63
1 changed files with 3 additions and 7 deletions
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10
drivers/gpu/drm/radeon/evergreen.c
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@ -77,13 +77,9 @@ void evergreen_tiling_fields(unsigned tiling_flags, unsigned *bankw,
void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
{
u16 ctl, v;
int cap, err;
int err;
cap = pci_pcie_cap(rdev->pdev);
if (!cap)
return;
err = pci_read_config_word(rdev->pdev, cap + PCI_EXP_DEVCTL, &ctl);
err = pcie_capability_read_word(rdev->pdev, PCI_EXP_DEVCTL, &ctl);
if (err)
return;
@ -95,7 +91,7 @@ void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
if ((v == 0) || (v == 6) || (v == 7)) {
ctl &= ~PCI_EXP_DEVCTL_READRQ;
ctl |= (2 << 12);
pci_write_config_word(rdev->pdev, cap + PCI_EXP_DEVCTL, ctl);
pcie_capability_write_word(rdev->pdev, PCI_EXP_DEVCTL, ctl);
}
}