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/*
* Samsung SoC USB 1.1/2.0 PHY driver
*
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
* Author: Kamil Debski <k.debski@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#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>
#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;
bool enabled;
};
struct samsung_usb2_phy_driver {
const struct samsung_usb2_phy_config *cfg;
struct clk *clk;
struct clk *ref_clk;
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;
};
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;
#endif
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