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fdtdec: Improve fdtdec_get_pci_bdf() documentation

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Add the description that how the compatible property is involved in
the fdtdec_get_pci_bdf() documentation.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2015-03-04 15:08:26 +08:00 committed by Simon Glass
parent 1c854dc5d4
commit 0eb9dc76e2
1 changed files with 4 additions and 1 deletions

5
include/fdtdec.h
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@ -347,7 +347,10 @@ int fdtdec_get_pci_vendev(const void *blob, int node,
/**
* Look at the pci address of a device node that represents a PCI device
* and parse the bus, device and function number from it.
* and parse the bus, device and function number from it. For some cases
* like the bus number encoded in reg property is not correct after pci
* enumeration, this function looks through the node's compatible strings
* to get these numbers extracted instead.
*
* @param blob FDT blob
* @param node node to examine