1 // SPDX-License-Identifier: GPL-2.0-or-later 1
2 /*
3 * Copyright (C) 2007 PA Semi, Inc
4 *
5 * Parts based on arch/powerpc/sysdev/fsl_soc.
6 *
7 * 2006 (c) MontaVista Software, Inc.
8 */
9
10 #include <linux/errno.h>
11 #include <linux/kernel.h>
12 #include <linux/pci.h>
13 #include <linux/of.h>
14 #include <linux/of_irq.h>
15 #include <linux/i2c.h>
16
17 #ifdef CONFIG_I2C_BOARDINFO
18 /* The below is from fsl_soc.c. It's copied b
19 * official bus bindings at this time it doesn
20 * the platforms, even though they happen to b
21 */
22 struct i2c_driver_device {
23 char *of_device;
24 char *i2c_type;
25 };
26
27 static struct i2c_driver_device i2c_devices[]
28 {"dallas,ds1338", "ds1338"},
29 };
30
31 static int __init find_i2c_driver(struct devic
32 struct i2
33 {
34 int i;
35
36 for (i = 0; i < ARRAY_SIZE(i2c_devices
37 if (!of_device_is_compatible(n
38 continue;
39 if (strscpy(info->type, i2c_de
40 return -ENOMEM;
41 return 0;
42 }
43 return -ENODEV;
44 }
45
46 static int __init pasemi_register_i2c_devices(
47 {
48 struct pci_dev *pdev;
49 struct device_node *adap_node;
50 struct device_node *node;
51
52 pdev = NULL;
53 while ((pdev = pci_get_device(PCI_VEND
54 adap_node = pci_device_to_OF_n
55
56 if (!adap_node)
57 continue;
58
59 for_each_child_of_node(adap_no
60 struct i2c_board_info
61 const u32 *addr;
62 int len;
63
64 addr = of_get_property
65 if (!addr || len < siz
66 *addr > (1 << 10)
67 pr_warn("pasem
68 continue;
69 }
70
71 info.irq = irq_of_pars
72 if (!info.irq)
73 info.irq = -1;
74
75 if (find_i2c_driver(no
76 continue;
77
78 info.addr = *addr;
79
80 i2c_register_board_inf
81
82 }
83 }
84 return 0;
85 }
86 device_initcall(pasemi_register_i2c_devices);
87 #endif
88
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