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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2019 Google, Inc
*/
#ifndef __DM_PCI_H
#define __DM_PCI_H
struct udevice;
/**
* pci_get_devfn() - Extract the devfn from fdt_pci_addr of the device
*
* Get devfn from fdt_pci_addr of the specified device
*
* This returns an int to avoid a dependency on pci.h
*
* @dev: PCI device
* @return devfn in bits 15...8 if found (pci_dev_t format), or -ENODEV if not
* found
*/
int pci_get_devfn(struct udevice *dev);
/**
* pci_ofplat_get_devfn() - Get the PCI dev/fn from of-platdata
*
* This function is used to obtain a PCI device/function from of-platdata
* register data. In this case the first cell of the 'reg' property contains
* the required information.
*
* This returns an int to avoid a dependency on pci.h
*
* @reg: reg value from dt-platdata.c array (first member). This is not a
* pointer type, since the caller may use fdt32_t or fdt64_t depending on
* the address sizes.
* @return device/function for that device (pci_dev_t format)
*/
static inline int pci_ofplat_get_devfn(u32 reg)
{
return reg & 0xff00;
}
#endif
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