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Linux/include/linux/soc/qcom/smem_state.h

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  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 void qcom_smem_state_put(struct qcom_smem_state *);
 18 
 19 int qcom_smem_state_update_bits(struct qcom_smem_state *state, u32 mask, u32 value);
 20 
 21 struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node, const struct qcom_smem_state_ops *ops, void *data);
 22 void qcom_smem_state_unregister(struct qcom_smem_state *state);
 23 
 24 #else
 25 
 26 static inline struct qcom_smem_state *qcom_smem_state_get(struct device *dev,
 27         const char *con_id, unsigned *bit)
 28 {
 29         return ERR_PTR(-EINVAL);
 30 }
 31 
 32 static inline void qcom_smem_state_put(struct qcom_smem_state *state)
 33 {
 34 }
 35 
 36 static inline int qcom_smem_state_update_bits(struct qcom_smem_state *state,
 37         u32 mask, u32 value)
 38 {
 39         return -EINVAL;
 40 }
 41 
 42 static inline struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node,
 43         const struct qcom_smem_state_ops *ops, void *data)
 44 {
 45         return ERR_PTR(-EINVAL);
 46 }
 47 
 48 static inline void qcom_smem_state_unregister(struct qcom_smem_state *state)
 49 {
 50 }
 51 
 52 #endif
 53 
 54 #endif
 55 

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