linux/drivers/phy/st/phy-stm32-usbphyc.c

// SPDX-License-Identifier: GPL-2.0
/*
 * STMicroelectronics STM32 USB PHY Controller driver
 *
 * Copyright (C) 2018 STMicroelectronics
 * Author(s): Amelie Delaunay <[email protected]>.
 */
#include <linux/bitfield.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/delay.h>
#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include <linux/units.h>

#define STM32_USBPHYC_PLL …
#define STM32_USBPHYC_MISC …
#define STM32_USBPHYC_MONITOR(X) …
#define STM32_USBPHYC_TUNE(X) …
#define STM32_USBPHYC_VERSION …

/* STM32_USBPHYC_PLL bit fields */
#define PLLNDIV …
#define PLLFRACIN …
#define PLLEN …
#define PLLSTRB …
#define PLLSTRBYP …
#define PLLFRACCTL …
#define PLLDITHEN0 …
#define PLLDITHEN1 …

/* STM32_USBPHYC_MISC bit fields */
#define SWITHOST …

/* STM32_USBPHYC_MONITOR bit fields */
#define STM32_USBPHYC_MON_OUT …
#define STM32_USBPHYC_MON_SEL …
#define STM32_USBPHYC_MON_SEL_LOCKP …
#define STM32_USBPHYC_MON_OUT_LOCKP …

/* STM32_USBPHYC_TUNE bit fields */
#define INCURREN …
#define INCURRINT …
#define LFSCAPEN …
#define HSDRVSLEW …
#define HSDRVDCCUR …
#define HSDRVDCLEV …
#define HSDRVCURINCR …
#define FSDRVRFADJ …
#define HSDRVRFRED …
#define HSDRVCHKITRM …
#define HSDRVCHKZTRM …
#define OTPCOMP …
#define SQLCHCTL …
#define HDRXGNEQEN …
#define HSRXOFF …
#define HSFALLPREEM …
#define SHTCCTCTLPROT …
#define STAGSEL …

enum boosting_vals { … };

enum dc_level_vals { … };

enum current_trim { … };

enum impedance_trim { … };

enum squelch_level { … };

enum rx_offset { … };

/* STM32_USBPHYC_VERSION bit fields */
#define MINREV …
#define MAJREV …

#define PLL_FVCO_MHZ …
#define PLL_INFF_MIN_RATE_HZ …
#define PLL_INFF_MAX_RATE_HZ …

struct pll_params { … };

struct stm32_usbphyc_phy { … };

struct stm32_usbphyc { … };

static inline void stm32_usbphyc_set_bits(void __iomem *reg, u32 bits)
{ … }

static inline void stm32_usbphyc_clr_bits(void __iomem *reg, u32 bits)
{ … }

static int stm32_usbphyc_regulators_enable(struct stm32_usbphyc *usbphyc)
{ … }

static int stm32_usbphyc_regulators_disable(struct stm32_usbphyc *usbphyc)
{ … }

static void stm32_usbphyc_get_pll_params(u32 clk_rate,
					 struct pll_params *pll_params)
{ … }

static int stm32_usbphyc_pll_init(struct stm32_usbphyc *usbphyc)
{ … }

static int __stm32_usbphyc_pll_disable(struct stm32_usbphyc *usbphyc)
{ … }

static int stm32_usbphyc_pll_disable(struct stm32_usbphyc *usbphyc)
{ … }

static int stm32_usbphyc_pll_enable(struct stm32_usbphyc *usbphyc)
{ … }

static int stm32_usbphyc_phy_init(struct phy *phy)
{ … }

static int stm32_usbphyc_phy_exit(struct phy *phy)
{ … }

static int stm32_usbphyc_phy_power_on(struct phy *phy)
{ … }

static int stm32_usbphyc_phy_power_off(struct phy *phy)
{ … }

static const struct phy_ops stm32_usbphyc_phy_ops = …;

static int stm32_usbphyc_clk48_prepare(struct clk_hw *hw)
{ … }

static void stm32_usbphyc_clk48_unprepare(struct clk_hw *hw)
{ … }

static unsigned long stm32_usbphyc_clk48_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
{ … }

static const struct clk_ops usbphyc_clk48_ops = …;

static void stm32_usbphyc_clk48_unregister(void *data)
{ … }

static int stm32_usbphyc_clk48_register(struct stm32_usbphyc *usbphyc)
{ … }

static void stm32_usbphyc_phy_tuning(struct stm32_usbphyc *usbphyc,
				     struct device_node *np, u32 index)
{ … }

static void stm32_usbphyc_switch_setup(struct stm32_usbphyc *usbphyc,
				       u32 utmi_switch)
{ … }

static struct phy *stm32_usbphyc_of_xlate(struct device *dev,
					  const struct of_phandle_args *args)
{ … }

static int stm32_usbphyc_probe(struct platform_device *pdev)
{ … }

static void stm32_usbphyc_remove(struct platform_device *pdev)
{ … }

static int __maybe_unused stm32_usbphyc_resume(struct device *dev)
{ … }

static SIMPLE_DEV_PM_OPS(stm32_usbphyc_pm_ops, NULL, stm32_usbphyc_resume);

static const struct of_device_id stm32_usbphyc_of_match[] = …;
MODULE_DEVICE_TABLE(of, stm32_usbphyc_of_match);

static struct platform_driver stm32_usbphyc_driver = …;
module_platform_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;