1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * OpenFirmware helpers for memory drivers
 4 *
 5 * Copyright (C) 2012 Texas Instruments, Inc.
 6 * Copyright (C) 2020 Krzysztof Kozlowski <krzk@kernel.org>
 7 */
 8
 9#ifndef __LINUX_MEMORY_OF_REG_H
10#define __LINUX_MEMORY_OF_REG_H
11
12#if defined(CONFIG_OF) && defined(CONFIG_DDR)
13const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np,
14					    struct device *dev);
15const struct lpddr2_timings *of_get_ddr_timings(struct device_node *np_ddr,
16						struct device *dev,
17						u32 device_type, u32 *nr_frequencies);
18const struct lpddr3_min_tck *of_lpddr3_get_min_tck(struct device_node *np,
19						   struct device *dev);
20const struct lpddr3_timings *
21of_lpddr3_get_ddr_timings(struct device_node *np_ddr,
22			  struct device *dev, u32 device_type, u32 *nr_frequencies);
23
24const struct lpddr2_info *of_lpddr2_get_info(struct device_node *np,
25					     struct device *dev);
26#else
27static inline const struct lpddr2_min_tck
28	*of_get_min_tck(struct device_node *np, struct device *dev)
29{
30	return NULL;
31}
32
33static inline const struct lpddr2_timings
34	*of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,
35	u32 device_type, u32 *nr_frequencies)
36{
37	return NULL;
38}
39
40static inline const struct lpddr3_min_tck
41	*of_lpddr3_get_min_tck(struct device_node *np, struct device *dev)
42{
43	return NULL;
44}
45
46static inline const struct lpddr3_timings
47	*of_lpddr3_get_ddr_timings(struct device_node *np_ddr,
48	struct device *dev, u32 device_type, u32 *nr_frequencies)
49{
50	return NULL;
51}
52
53static inline const struct lpddr2_info
54	*of_lpddr2_get_info(struct device_node *np, struct device *dev)
55{
56	return NULL;
57}
58#endif /* CONFIG_OF && CONFIG_DDR */
59
60#endif /* __LINUX_MEMORY_OF_REG_ */

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * OpenFirmware helpers for memory drivers
 4 *
 5 * Copyright (C) 2012 Texas Instruments, Inc.
 
 6 */
 7
 8#ifndef __LINUX_MEMORY_OF_REG_H
 9#define __LINUX_MEMORY_OF_REG_H
10
11#if defined(CONFIG_OF) && defined(CONFIG_DDR)
12extern const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np,
13		struct device *dev);
14extern 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
18static inline const struct lpddr2_min_tck
19	*of_get_min_tck(struct device_node *np, struct device *dev)
20{
21	return NULL;
22}
23
24static 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}
30#endif /* CONFIG_OF && CONFIG_DDR */
31
32#endif /* __LINUX_MEMORY_OF_REG_ */