summaryrefslogtreecommitdiffstats
path: root/drivers/phy/samsung/phy-samsung-usb2.h
blob: 2c1a7d71142bf7a122797d727225c3b283dd7e92 (plain)
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
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Samsung SoC USB 1.1/2.0 PHY driver
 *
 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
 * Author: Kamil Debski <k.debski@samsung.com>
 */

#ifndef _PHY_EXYNOS_USB2_H
#define _PHY_EXYNOS_USB2_H

#include <linux/clk.h>
#include <linux/phy/phy.h>
#include <linux/device.h>
#include <linux/regmap.h>
#include <linux/spinlock.h>
#include <linux/regulator/consumer.h>

#define KHZ 1000
#define MHZ (KHZ * KHZ)

struct samsung_usb2_phy_driver;
struct samsung_usb2_phy_instance;
struct samsung_usb2_phy_config;

struct samsung_usb2_phy_instance {
	const struct samsung_usb2_common_phy *cfg;
	struct phy *phy;
	struct samsung_usb2_phy_driver *drv;
	int int_cnt;
	int ext_cnt;
};

struct samsung_usb2_phy_driver {
	const struct samsung_usb2_phy_config *cfg;
	struct clk *clk;
	struct clk *ref_clk;
	struct regulator *vbus;
	unsigned long ref_rate;
	u32 ref_reg_val;
	struct device *dev;
	void __iomem *reg_phy;
	struct regmap *reg_pmu;
	struct regmap *reg_sys;
	spinlock_t lock;
	struct samsung_usb2_phy_instance instances[0];
};

struct samsung_usb2_common_phy {
	int (*power_on)(struct samsung_usb2_phy_instance *);
	int (*power_off)(struct samsung_usb2_phy_instance *);
	unsigned int id;
	char *label;
};


struct samsung_usb2_phy_config {
	const struct samsung_usb2_common_phy *phys;
	int (*rate_to_clk)(unsigned long, u32 *);
	unsigned int num_phys;
	bool has_mode_switch;
	bool has_refclk_sel;
};

extern const struct samsung_usb2_phy_config exynos3250_usb2_phy_config;
extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config;
extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config;
extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config;
extern const struct samsung_usb2_phy_config s5pv210_usb2_phy_config;
#endif