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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef TEGRA_EMC_COMMON_H
#define TEGRA_EMC_COMMON_H
#include <linux/device.h>
#include <linux/mutex.h>
/**
* enum tegra_emc_rate_request_type - source of rate request
* @TEGRA_EMC_RATE_DEVFREQ: rate requested by devfreq governor
* @TEGRA_EMC_RATE_DEBUG: rate requested through debugfs knobs
* @TEGRA_EMC_RATE_ICC: rate requested by ICC framework
* @TEGRA_EMC_RATE_TYPE_MAX: number of valid request types
*/
enum tegra_emc_rate_request_type {
TEGRA_EMC_RATE_DEVFREQ,
TEGRA_EMC_RATE_DEBUG,
TEGRA_EMC_RATE_ICC,
TEGRA_EMC_RATE_TYPE_MAX,
};
struct tegra_emc_rate_request {
unsigned long min_rate;
unsigned long max_rate;
};
struct tegra_emc_rate_requests {
struct tegra_emc_rate_request requested_rate[TEGRA_EMC_RATE_TYPE_MAX];
/* Protects @requested_rate. */
struct mutex rate_lock;
struct device *dev;
};
void tegra_emc_rate_requests_init(struct tegra_emc_rate_requests *reqs,
struct device *dev);
int tegra_emc_set_min_rate(struct tegra_emc_rate_requests *reqs,
unsigned long rate,
enum tegra_emc_rate_request_type type);
int tegra_emc_set_max_rate(struct tegra_emc_rate_requests *reqs,
unsigned long rate,
enum tegra_emc_rate_request_type type);
#endif /* TEGRA_EMC_COMMON_H */
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