diff options
| -rw-r--r-- | drivers/pci/pci-uclass.c | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index 87eee45c52..2f4368fa1b 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -478,10 +478,17 @@ static bool pci_match_one_id(const struct pci_device_id *id, * pci_find_and_bind_driver() - Find and bind the right PCI driver * * This only looks at certain fields in the descriptor. + * + * @parent: Parent bus + * @find_id: Specification of the driver to find + * @bdf: Bus/device/function addreess - see PCI_BDF() + * @devp: Returns a pointer to the device created + * @return 0 if OK, -EPERM if the device is not needed before relocation and + * therefore was not created, other -ve value on error */ static int pci_find_and_bind_driver(struct udevice *parent, - struct pci_device_id *find_id, pci_dev_t bdf, - struct udevice **devp) + struct pci_device_id *find_id, + pci_dev_t bdf, struct udevice **devp) { struct pci_driver_entry *start, *entry; const char *drv; @@ -517,7 +524,7 @@ static int pci_find_and_bind_driver(struct udevice *parent, */ if (!(gd->flags & GD_FLG_RELOC) && !(drv->flags & DM_FLAG_PRE_RELOC)) - return 0; + return -EPERM; /* * We could pass the descriptor to the driver as @@ -545,7 +552,7 @@ static int pci_find_and_bind_driver(struct udevice *parent, * limited (ie: using Cache As RAM). */ if (!(gd->flags & GD_FLG_RELOC) && !bridge) - return 0; + return -EPERM; /* Bind a generic driver so that the device can be used */ sprintf(name, "pci_%x:%x.%x", parent->seq, PCI_DEV(bdf), @@ -633,17 +640,17 @@ int pci_bind_bus_devices(struct udevice *bus) ret = pci_find_and_bind_driver(bus, &find_id, bdf, &dev); } - if (ret) + if (ret == -EPERM) + continue; + else if (ret) return ret; /* Update the platform data */ - if (dev) { - pplat = dev_get_parent_platdata(dev); - pplat->devfn = PCI_MASK_BUS(bdf); - pplat->vendor = vendor; - pplat->device = device; - pplat->class = class; - } + pplat = dev_get_parent_platdata(dev); + pplat->devfn = PCI_MASK_BUS(bdf); + pplat->vendor = vendor; + pplat->device = device; + pplat->class = class; } return 0; |