/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * OpenFirmware helpers for memory drivers * * Copyright (C) 2012 Texas Instruments, Inc. */ #ifndef __LINUX_MEMORY_OF_REG_H #define __LINUX_MEMORY_OF_REG_H #if defined(CONFIG_OF) && defined(CONFIG_DDR) extern const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np, struct device *dev); extern const struct lpddr2_timings *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev, u32 device_type, u32 *nr_frequencies); #else static inline const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np, struct device *dev) { return NULL; } static inline const struct lpddr2_timings *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev, u32 device_type, u32 *nr_frequencies) { return NULL; } #endif /* CONFIG_OF && CONFIG_DDR */ #endif /* __LINUX_MEMORY_OF_REG_ */