linux/drivers/interconnect/icc-clk.c

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2023, Linaro Ltd.
 */

#include <linux/clk.h>
#include <linux/device.h>
#include <linux/interconnect-clk.h>
#include <linux/interconnect-provider.h>

struct icc_clk_node { … };

struct icc_clk_provider { … };

#define to_icc_clk_provider(_provider) …

static int icc_clk_set(struct icc_node *src, struct icc_node *dst)
{ … }

static int icc_clk_get_bw(struct icc_node *node, u32 *avg, u32 *peak)
{ … }

/**
 * icc_clk_register() - register a new clk-based interconnect provider
 * @dev: device supporting this provider
 * @first_id: an ID of the first provider's node
 * @num_clocks: number of instances of struct icc_clk_data
 * @data: data for the provider
 *
 * Registers and returns a clk-based interconnect provider. It is a simple
 * wrapper around COMMON_CLK framework, allowing other devices to vote on the
 * clock rate.
 *
 * Return: 0 on success, or an error code otherwise
 */
struct icc_provider *icc_clk_register(struct device *dev,
				      unsigned int first_id,
				      unsigned int num_clocks,
				      const struct icc_clk_data *data)
{ … }
EXPORT_SYMBOL_GPL(…);

static void devm_icc_release(void *res)
{ … }

int devm_icc_clk_register(struct device *dev, unsigned int first_id,
			  unsigned int num_clocks, const struct icc_clk_data *data)
{ … }
EXPORT_SYMBOL_GPL(…);

/**
 * icc_clk_unregister() - unregister a previously registered clk interconnect provider
 * @provider: provider returned by icc_clk_register()
 */
void icc_clk_unregister(struct icc_provider *provider)
{ … }
EXPORT_SYMBOL_GPL(…);

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