LXR linux/drivers/phy/phy-samsung-usb2.h

   1/*
   2 * Samsung SoC USB 1.1/2.0 PHY driver
   3 *
   4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
   5 * Author: Kamil Debski <k.debski@samsung.com>
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 as
   9 * published by the Free Software Foundation.
  10 */
  11
  12#ifndef _PHY_EXYNOS_USB2_H
  13#define _PHY_EXYNOS_USB2_H
  14
  15#include <linux/clk.h>
  16#include <linux/phy/phy.h>
  17#include <linux/device.h>
  18#include <linux/regmap.h>
  19#include <linux/spinlock.h>
  20
  21#define KHZ 1000
  22#define MHZ (KHZ * KHZ)
  23
  24struct samsung_usb2_phy_driver;
  25struct samsung_usb2_phy_instance;
  26struct samsung_usb2_phy_config;
  27
  28struct samsung_usb2_phy_instance {
  29        const struct samsung_usb2_common_phy *cfg;
  30        struct phy *phy;
  31        struct samsung_usb2_phy_driver *drv;
  32        int int_cnt;
  33        int ext_cnt;
  34};
  35
  36struct samsung_usb2_phy_driver {
  37        const struct samsung_usb2_phy_config *cfg;
  38        struct clk *clk;
  39        struct clk *ref_clk;
  40        unsigned long ref_rate;
  41        u32 ref_reg_val;
  42        struct device *dev;
  43        void __iomem *reg_phy;
  44        struct regmap *reg_pmu;
  45        struct regmap *reg_sys;
  46        spinlock_t lock;
  47        struct samsung_usb2_phy_instance instances[0];
  48};
  49
  50struct samsung_usb2_common_phy {
  51        int (*power_on)(struct samsung_usb2_phy_instance *);
  52        int (*power_off)(struct samsung_usb2_phy_instance *);
  53        unsigned int id;
  54        char *label;
  55};
  56
  57
  58struct samsung_usb2_phy_config {
  59        const struct samsung_usb2_common_phy *phys;
  60        int (*rate_to_clk)(unsigned long, u32 *);
  61        unsigned int num_phys;
  62        bool has_mode_switch;
  63        bool has_refclk_sel;
  64};
  65
  66extern const struct samsung_usb2_phy_config exynos3250_usb2_phy_config;
  67extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config;
  68extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config;
  69extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config;
  70extern const struct samsung_usb2_phy_config s5pv210_usb2_phy_config;
  71#endif
  72