1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __QCOM_SMEM_STATE__
3 #define __QCOM_SMEM_STATE__
4
5 #include <linux/err.h>
6
7 struct device_node;
8 struct qcom_smem_state;
9
10 struct qcom_smem_state_ops {
11 int (*update_bits)(void *, u32, u32);
12 };
13
14 #ifdef CONFIG_QCOM_SMEM_STATE
15
16 struct qcom_smem_state *qcom_smem_state_get(struct device *dev, const char *con_id, unsigned *bit);
17 struct qcom_smem_state *devm_qcom_smem_state_get(struct device *dev, const char *con_id, unsigned *bit);
18 void qcom_smem_state_put(struct qcom_smem_state *);
19
20 int qcom_smem_state_update_bits(struct qcom_smem_state *state, u32 mask, u32 value);
21
22 struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node, const struct qcom_smem_state_ops *ops, void *data);
23 void qcom_smem_state_unregister(struct qcom_smem_state *state);
24
25 #else
26
27 static inline struct qcom_smem_state *qcom_smem_state_get(struct device *dev,
28 const char *con_id, unsigned *bit)
29 {
30 return ERR_PTR(-EINVAL);
31 }
32
33 static inline struct qcom_smem_state *devm_qcom_smem_state_get(struct device *dev,
34 const char *con_id,
35 unsigned *bit)
36 {
37 return ERR_PTR(-EINVAL);
38 }
39
40 static inline void qcom_smem_state_put(struct qcom_smem_state *state)
41 {
42 }
43
44 static inline int qcom_smem_state_update_bits(struct qcom_smem_state *state,
45 u32 mask, u32 value)
46 {
47 return -EINVAL;
48 }
49
50 static inline struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node,
51 const struct qcom_smem_state_ops *ops, void *data)
52 {
53 return ERR_PTR(-EINVAL);
54 }
55
56 static inline void qcom_smem_state_unregister(struct qcom_smem_state *state)
57 {
58 }
59
60 #endif
61
62 #endif
63
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