[mirror_ubuntu-eoan-kernel.git] / drivers / memory / of_memory.h

/* 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_ */
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
e6b42eb6 A	2	/*
	3	* OpenFirmware helpers for memory drivers
	4	*
	5	* Copyright (C) 2012 Texas Instruments, Inc.
e6b42eb6 A	6	*/
	7
	8	#ifndef __LINUX_MEMORY_OF_REG_H
	9	#define __LINUX_MEMORY_OF_REG_H
	10
7c304d7e	11	#if defined(CONFIG_OF) && defined(CONFIG_DDR)
e6b42eb6 A	12	extern const struct lpddr2_min_tck of_get_min_tck(struct device_node np,
	13	struct device *dev);
	14	extern const struct lpddr2_timings
	15	of_get_ddr_timings(struct device_node np_ddr, struct device *dev,
	16	u32 device_type, u32 *nr_frequencies);
	17	#else
	18	static inline const struct lpddr2_min_tck
	19	of_get_min_tck(struct device_node np, struct device *dev)
	20	{
	21	return NULL;
	22	}
	23
	24	static inline const struct lpddr2_timings
	25	of_get_ddr_timings(struct device_node np_ddr, struct device *dev,
	26	u32 device_type, u32 *nr_frequencies)
	27	{
	28	return NULL;
	29	}
7c304d7e	30	#endif /* CONFIG_OF && CONFIG_DDR */
e6b42eb6 A	31
e6b42eb6 A	32	#endif /* __LINUX_MEMORY_OF_REG_ */