Messages in this thread Patch in this message | | | Date | Tue, 11 Mar 2008 19:52:31 +0900 | From | Tejun Heo <> | Subject | [PATCH libata-dev#upstream-fixes] ahci: request all PCI BARs |
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ahci is often implemented with accompanying SFF compatible interface and legacy IDE driver may attach to the legacy IO ports when the controller is already claimed by ahci and vice-versa. This patch makes ahci use pcim_iomap_regions_request_all() so that all IO regions are claimed on attach.
Signed-off-by: Tejun Heo <htejun@gmail.com> --- drivers/ata/ahci.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
Index: work/drivers/ata/ahci.c =================================================================== --- work.orig/drivers/ata/ahci.c +++ work/drivers/ata/ahci.c @@ -2234,7 +2234,10 @@ static int ahci_init_one(struct pci_dev if (rc) return rc; - rc = pcim_iomap_regions(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); + /* AHCI controllers often implement SFF compatible interface. + * Grab all PCI BARs just in case. + */ + rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); if (rc == -EBUSY) pcim_pin_device(pdev); if (rc)
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