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PCI: Document pciauto_region_allocate()

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Add a doc comment for pciauto_region_allocate().

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Tuomas Tynkkynen 2018-05-14 23:50:05 +03:00 committed by Tom Rini
parent d71975ae6e
commit 5ce9aca8a6
1 changed files with 13 additions and 0 deletions
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13
include/pci.h
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@ -680,6 +680,19 @@ extern int pci_write_config_dword(pci_dev_t dev, int where, u32 val);
void pciauto_region_init(struct pci_region *res);
void pciauto_region_align(struct pci_region *res, pci_size_t size);
void pciauto_config_init(struct pci_controller *hose);
/**
* pciauto_region_allocate() - Allocate resources from a PCI resource region
*
* Allocates @size bytes from the PCI resource @res. If @supports_64bit is
* false, the result will be guaranteed to fit in 32 bits.
*
* @res: PCI region to allocate from
* @size: Amount of bytes to allocate
* @bar: Returns the PCI bus address of the allocated resource
* @supports_64bit: Whether to allow allocations above the 32-bit boundary
* @return 0 if successful, -1 on failure
*/
int pciauto_region_allocate(struct pci_region *res, pci_size_t size,
pci_addr_t *bar, bool supports_64bit);