The patch titled
ahci: request all PCI BARs
has been added to the -mm tree. Its filename is
ahci-request-all-pci-bars.patch
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------------------------------------------------------
Subject: ahci: request all PCI BARs
From: Tejun Heo <htejun@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ata/ahci.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff -puN drivers/ata/ahci.c~ahci-request-all-pci-bars drivers/ata/ahci.c
--- a/drivers/ata/ahci.c~ahci-request-all-pci-bars
+++ a/drivers/ata/ahci.c
@@ -2241,7 +2241,10 @@ 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)
_
Patches currently in -mm which might be from htejun@xxxxxxxxx are
origin.patch
devres-implement-pcim_iomap_regions_request_all.patch
ahci-request-all-pci-bars.patch
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