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dm: pci: Add a driver-model version of pci_find_device()

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Add a function which scans the driver model device information rather
than scanning the PCI bus again.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2015-11-29 13:17:50 -07:00
parent 5e23b8b4a4
commit 5c0bf647c4
2 changed files with 51 additions and 0 deletions
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12
include/pci.h
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@ -1166,6 +1166,18 @@ struct udevice *pci_get_controller(struct udevice *dev);
int pci_get_regions(struct udevice *dev, struct pci_region **iop,
struct pci_region **memp, struct pci_region **prefp);
/**
* dm_pci_find_device() - find a device by vendor/device ID
*
* @vendor: Vendor ID
* @device: Device ID
* @index: 0 to find the first match, 1 for second, etc.
* @devp: Returns pointer to the device, if found
* @return 0 if found, -ve on error
*/
int dm_pci_find_device(unsigned int vendor, unsigned int device, int index,
struct udevice **devp);
/**
* struct dm_pci_emul_ops - PCI device emulator operations
*/