1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
#include <common.h>
#include <init.h>
#include <io.h>
#include <malloc.h>
#include <linux/err.h>
#include "am35x-phy-control.h"
#include "musb_core.h"
struct am335x_usbphy {
void __iomem *base;
struct phy_control *phy_ctrl;
int id;
struct usb_phy phy;
};
static int am335x_init(struct usb_phy *phy)
{
struct am335x_usbphy *am_usbphy = container_of(phy, struct am335x_usbphy, phy);
phy_ctrl_power(am_usbphy->phy_ctrl, am_usbphy->id, true);
return 0;
}
static int am335x_phy_probe(struct device_d *dev)
{
struct am335x_usbphy *am_usbphy;
struct resource *iores;
int ret;
am_usbphy = xzalloc(sizeof(*am_usbphy));
iores = dev_request_mem_resource(dev, 0);
if (IS_ERR(iores)) {
ret = PTR_ERR(iores);
goto err_free;
}
am_usbphy->base = IOMEM(iores->start);
am_usbphy->phy_ctrl = am335x_get_phy_control(dev);
if (IS_ERR(am_usbphy->phy_ctrl)) {
ret = PTR_ERR(am_usbphy->phy_ctrl);
goto err_release;
}
am_usbphy->id = of_alias_get_id(dev->device_node, "phy");
if (am_usbphy->id < 0) {
dev_err(dev, "Missing PHY id: %d\n", am_usbphy->id);
ret = am_usbphy->id;
goto err_release;
}
am_usbphy->phy.init = am335x_init;
dev->priv = &am_usbphy->phy;
dev_info(dev, "am_usbphy %p enabled\n", &am_usbphy->phy);
return 0;
err_release:
release_region(iores);
err_free:
free(am_usbphy);
return ret;
};
static __maybe_unused struct of_device_id am335x_phy_dt_ids[] = {
{
.compatible = "ti,am335x-usb-phy",
}, {
/* sentinel */
},
};
static struct driver_d am335x_phy_driver = {
.name = "am335x-phy-driver",
.probe = am335x_phy_probe,
.of_compatible = DRV_OF_COMPAT(am335x_phy_dt_ids),
};
static int am335x_phy_init(void)
{
return platform_driver_register(&am335x_phy_driver);
}
fs_initcall(am335x_phy_init);
|
