1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Samsung SoC USB 1.1/2.0 PHY driver
4 *
5 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
6 * Author: Kamil Debski <k.debski@samsung.com>
7 */
8
9#ifndef _PHY_EXYNOS_USB2_H
10#define _PHY_EXYNOS_USB2_H
11
12#include <linux/clk.h>
13#include <linux/phy/phy.h>
14#include <linux/device.h>
15#include <linux/regmap.h>
16#include <linux/spinlock.h>
17#include <linux/regulator/consumer.h>
18
19#define KHZ 1000
20#define MHZ (KHZ * KHZ)
21
22struct samsung_usb2_phy_driver;
23struct samsung_usb2_phy_instance;
24struct samsung_usb2_phy_config;
25
26struct samsung_usb2_phy_instance {
27 const struct samsung_usb2_common_phy *cfg;
28 struct phy *phy;
29 struct samsung_usb2_phy_driver *drv;
30 int int_cnt;
31 int ext_cnt;
32};
33
34struct samsung_usb2_phy_driver {
35 const struct samsung_usb2_phy_config *cfg;
36 struct clk *clk;
37 struct clk *ref_clk;
38 struct regulator *vbus;
39 unsigned long ref_rate;
40 u32 ref_reg_val;
41 struct device *dev;
42 void __iomem *reg_phy;
43 struct regmap *reg_pmu;
44 struct regmap *reg_sys;
45 spinlock_t lock;
46 struct samsung_usb2_phy_instance instances[];
47};
48
49struct samsung_usb2_common_phy {
50 int (*power_on)(struct samsung_usb2_phy_instance *);
51 int (*power_off)(struct samsung_usb2_phy_instance *);
52 unsigned int id;
53 char *label;
54};
55
56
57struct samsung_usb2_phy_config {
58 const struct samsung_usb2_common_phy *phys;
59 int (*rate_to_clk)(unsigned long, u32 *);
60 unsigned int num_phys;
61 bool has_mode_switch;
62 bool has_refclk_sel;
63};
64
65extern const struct samsung_usb2_phy_config exynos3250_usb2_phy_config;
66extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config;
67extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config;
68extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config;
69extern const struct samsung_usb2_phy_config exynos5420_usb2_phy_config;
70extern const struct samsung_usb2_phy_config s5pv210_usb2_phy_config;
71#endif
72

source code of linux/drivers/phy/samsung/phy-samsung-usb2.h