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

   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 s5pv210_usb2_phy_config;
  70#endif
  71