/* 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 */