i2c/busses/i2c-pasemi-pci.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2006-2007 PA Semi, Inc
5  * SMBus host driver for PA Semi PWRficient
18 #include "i2c-pasemi-core.h"
23 static struct pci_driver pasemi_smb_pci_driver;
25 static int pasemi_smb_pci_probe(struct pci_dev *dev,  in pasemi_smb_pci_probe()
34 		return -ENODEV;  in pasemi_smb_pci_probe()
36 	smbus = devm_kzalloc(&dev->dev, sizeof(*smbus), GFP_KERNEL);  in pasemi_smb_pci_probe()
38 		return -ENOMEM;  in pasemi_smb_pci_probe()
40 	smbus->dev = &dev->dev;  in pasemi_smb_pci_probe()
43 	smbus->clk_div = CLK_100K_DIV;  in pasemi_smb_pci_probe()
49 	smbus->hw_rev = PASEMI_HW_REV_PCI;  in pasemi_smb_pci_probe()
51 	if (!devm_request_region(&dev->dev, base, size,  in pasemi_smb_pci_probe()
53 		return -EBUSY;  in pasemi_smb_pci_probe()
55 	smbus->ioaddr = pcim_iomap(dev, 0, 0);  in pasemi_smb_pci_probe()
56 	if (!smbus->ioaddr)  in pasemi_smb_pci_probe()
57 		return -EBUSY;  in pasemi_smb_pci_probe()
59 	smbus->adapter.class = I2C_CLASS_HWMON;  in pasemi_smb_pci_probe()
69 static const struct pci_device_id pasemi_smb_pci_ids[] = {
76 static struct pci_driver pasemi_smb_pci_driver = {
77 	.name		= "i2c-pasemi",
86 MODULE_DESCRIPTION("PA Semi PWRficient SMBus driver");