linux-imx

// SPDX-License-Identifier: GPL-2.0+

//

// clk-max77686.c - Clock driver for Maxim 77686/MAX77802

//

// Copyright (C) 2012 Samsung Electornics

// Jonghwa Lee <jonghwa3.lee@samsung.com>

​

#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/err.h>

#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/mfd/max77620.h>

#include <linux/mfd/max77686.h>

#include <linux/mfd/max77686-private.h>

#include <linux/clk-provider.h>

#include <linux/mutex.h>

#include <linux/clkdev.h>

#include <linux/of.h>

#include <linux/regmap.h>

​

#include <dt-bindings/clock/maxim,max77686.h>

#include <dt-bindings/clock/maxim,max77802.h>

#include <dt-bindings/clock/maxim,max77620.h>

​

#define MAX77802_CLOCK_LOW_JITTER_SHIFT 0x3

​

enum max77686_chip_name {

    CHIP_MAX77686,

    CHIP_MAX77802,

    CHIP_MAX77620,

};

​

struct max77686_hw_clk_info {

    const char *name;

    u32 clk_reg;

    u32 clk_enable_mask;

    u32 flags;

};

​

struct max77686_clk_init_data {

    struct regmap *regmap;

    struct clk_hw hw;

    struct clk_init_data clk_idata;

    const struct max77686_hw_clk_info *clk_info;

};

​

struct max77686_clk_driver_data {

    enum max77686_chip_name chip;

    struct max77686_clk_init_data *max_clk_data;

    size_t num_clks;

};

​

static const struct

max77686_hw_clk_info max77686_hw_clks_info[MAX77686_CLKS_NUM] = {

    [MAX77686_CLK_AP] = {

        .name = "32khz_ap",

        .clk_reg = MAX77686_REG_32KHZ,

        .clk_enable_mask = BIT(MAX77686_CLK_AP),

    },

    [MAX77686_CLK_CP] = {

        .name = "32khz_cp",

        .clk_reg = MAX77686_REG_32KHZ,