49 lines
937 B
C
49 lines
937 B
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* PCI bus helpers for STMMAC driver
|
|
* Copyright (C) 2025 Yao Zi <ziyao@disroot.org>
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/pci.h>
|
|
|
|
#include "stmmac_libpci.h"
|
|
|
|
int stmmac_pci_plat_suspend(struct device *dev, void *bsp_priv)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
int ret;
|
|
|
|
ret = pci_save_state(pdev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
pci_disable_device(pdev);
|
|
pci_wake_from_d3(pdev, true);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(stmmac_pci_plat_suspend);
|
|
|
|
int stmmac_pci_plat_resume(struct device *dev, void *bsp_priv)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
int ret;
|
|
|
|
pci_restore_state(pdev);
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
|
|
ret = pci_enable_device(pdev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
pci_set_master(pdev);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(stmmac_pci_plat_resume);
|
|
|
|
MODULE_DESCRIPTION("STMMAC PCI helper library");
|
|
MODULE_AUTHOR("Yao Zi <ziyao@disroot.org>");
|
|
MODULE_LICENSE("GPL");
|