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| author | Simon Glass <sjg@chromium.org> | 2015-11-19 20:27:00 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-12-01 06:26:36 -0700 |
| commit | 9f60fb0db4b70c65760cb1799b76de1c9b71644d (patch) | |
| tree | 9c8f9d5815a9a2bb315b683d87fd446b2dbfc689 /drivers/pci | |
| parent | 9289db6c60bc9caa285fc6459db9236d92ba94f6 (diff) | |
| download | u-boot-imx-9f60fb0db4b70c65760cb1799b76de1c9b71644d.zip u-boot-imx-9f60fb0db4b70c65760cb1799b76de1c9b71644d.tar.gz u-boot-imx-9f60fb0db4b70c65760cb1799b76de1c9b71644d.tar.bz2 | |
dm: pci: Add a function to get the controller for a bus
A PCI bus may be a bridge device where the controller is the bridge's
parent. Add a function to return the controller device, given a PCI device.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci-uclass.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index e38e0b2..f3f5f00 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -53,6 +53,14 @@ struct pci_controller *pci_bus_to_hose(int busnum) return dev_get_uclass_priv(bus); } +struct udevice *pci_get_controller(struct udevice *dev) +{ + while (device_is_on_pci_bus(dev)) + dev = dev->parent; + + return dev; +} + pci_dev_t pci_get_bdf(struct udevice *dev) { struct pci_child_platdata *pplat = dev_get_parent_platdata(dev); |