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

/*
 * OpenFirmware helpers for memory drivers
 *
 * Copyright (C) 2012 Texas Instruments, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#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
e6b42eb6 A	1	/*
	2	* OpenFirmware helpers for memory drivers
	3	*
	4	* Copyright (C) 2012 Texas Instruments, Inc.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11
	12	#ifndef __LINUX_MEMORY_OF_REG_H
	13	#define __LINUX_MEMORY_OF_REG_H
	14
7c304d7e	15	#if defined(CONFIG_OF) && defined(CONFIG_DDR)
e6b42eb6 A	16	extern const struct lpddr2_min_tck of_get_min_tck(struct device_node np,
	17	struct device *dev);
	18	extern const struct lpddr2_timings
	19	of_get_ddr_timings(struct device_node np_ddr, struct device *dev,
	20	u32 device_type, u32 *nr_frequencies);
	21	#else
	22	static inline const struct lpddr2_min_tck
	23	of_get_min_tck(struct device_node np, struct device *dev)
	24	{
	25	return NULL;
	26	}
	27
	28	static inline const struct lpddr2_timings
	29	of_get_ddr_timings(struct device_node np_ddr, struct device *dev,
	30	u32 device_type, u32 *nr_frequencies)
	31	{
	32	return NULL;
	33	}
7c304d7e	34	#endif /* CONFIG_OF && CONFIG_DDR */
e6b42eb6 A	35
e6b42eb6 A	36	#endif /* __LINUX_MEMORY_OF_REG_ */