linux/drivers/cpufreq/mediatek-cpufreq-hw.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2020 MediaTek Inc.
 */

#include <linux/bitfield.h>
#include <linux/cpufreq.h>
#include <linux/energy_model.h>
#include <linux/init.h>
#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>

#define LUT_MAX_ENTRIES …
#define LUT_FREQ …
#define LUT_ROW_SIZE …
#define CPUFREQ_HW_STATUS …
#define SVS_HW_STATUS …
#define POLL_USEC …
#define TIMEOUT_USEC …

enum { … };

struct mtk_cpufreq_data { … };

static const u16 cpufreq_mtk_offsets[REG_ARRAY_SIZE] = …;

static int __maybe_unused
mtk_cpufreq_get_cpu_power(struct device *cpu_dev, unsigned long *uW,
			  unsigned long *KHz)
{ … }

static int mtk_cpufreq_hw_target_index(struct cpufreq_policy *policy,
				       unsigned int index)
{ … }

static unsigned int mtk_cpufreq_hw_get(unsigned int cpu)
{ … }

static unsigned int mtk_cpufreq_hw_fast_switch(struct cpufreq_policy *policy,
					       unsigned int target_freq)
{ … }

static int mtk_cpu_create_freq_table(struct platform_device *pdev,
				     struct mtk_cpufreq_data *data)
{ … }

static int mtk_cpu_resources_init(struct platform_device *pdev,
				  struct cpufreq_policy *policy,
				  const u16 *offsets)
{ … }

static int mtk_cpufreq_hw_cpu_init(struct cpufreq_policy *policy)
{ … }

static void mtk_cpufreq_hw_cpu_exit(struct cpufreq_policy *policy)
{ … }

static void mtk_cpufreq_register_em(struct cpufreq_policy *policy)
{ … }

static struct cpufreq_driver cpufreq_mtk_hw_driver = …;

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

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

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

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

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