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drivers: pci: ignore disabled devices

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PCI devices may be disabled in the device tree. Devices which are probed
by the device tree handle the "status" property and are skipped if
disabled. Devices which are probed by the PCI enumeration don't check
that property. Fix it.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Alex Marginean <alexandru.marginean@nxp.com>
Tested-by: Alex Marginean <alexandru.marginean@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Michael Walle 2019-12-01 17:45:18 +01:00 • committed by Tom Rini
parent 7e5ee346fc
commit a6cd597a78
1 changed files with 5 additions and 0 deletions
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5
drivers/pci/pci-uclass.c
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@ -677,6 +677,11 @@ static int pci_find_and_bind_driver(struct udevice *parent,
/* Determine optional OF node */
pci_dev_find_ofnode(parent, bdf, &node);
if (ofnode_valid(node) && !ofnode_is_available(node)) {
debug("%s: Ignoring disabled device\n", __func__);
return -EPERM;
}
start = ll_entry_start(struct pci_driver_entry, pci_driver_entry);
n_ents = ll_entry_count(struct pci_driver_entry, pci_driver_entry);
for (entry = start; entry != start + n_ents; entry++) {