1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_OF_DEVICE_H 3 #define _LINUX_OF_DEVICE_H 4 5 #include <linux/cpu.h> 6 #include <linux/platform_device.h> 7 #include <linux/of_platform.h> /* temporary until merge */ 8 9 #include <linux/of.h> 10 #include <linux/mod_devicetable.h> 11 12 struct device; 13 14 #ifdef CONFIG_OF 15 extern const struct of_device_id *of_match_device( 16 const struct of_device_id *matches, const struct device *dev); 17 18 /** 19 * of_driver_match_device - Tell if a driver's of_match_table matches a device. 20 * @drv: the device_driver structure to test 21 * @dev: the device structure to match against 22 */ 23 static inline int of_driver_match_device(struct device *dev, 24 const struct device_driver *drv) 25 { 26 return of_match_device(drv->of_match_table, dev) != NULL; 27 } 28 29 extern const void *of_device_get_match_data(const struct device *dev); 30 31 extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len); 32 extern int of_device_request_module(struct device *dev); 33 34 extern void of_device_uevent(const struct device *dev, struct kobj_uevent_env *env); 35 extern int of_device_uevent_modalias(const struct device *dev, struct kobj_uevent_env *env); 36 37 static inline struct device_node *of_cpu_device_node_get(int cpu) 38 { 39 struct device *cpu_dev; 40 cpu_dev = get_cpu_device(cpu); 41 if (!cpu_dev) 42 return of_get_cpu_node(cpu, NULL); 43 return of_node_get(cpu_dev->of_node); 44 } 45 46 int of_dma_configure_id(struct device *dev, 47 struct device_node *np, 48 bool force_dma, const u32 *id); 49 static inline int of_dma_configure(struct device *dev, 50 struct device_node *np, 51 bool force_dma) 52 { 53 return of_dma_configure_id(dev, np, force_dma, NULL); 54 } 55 #else /* CONFIG_OF */ 56 57 static inline int of_driver_match_device(struct device *dev, 58 const struct device_driver *drv) 59 { 60 return 0; 61 } 62 63 static inline void of_device_uevent(const struct device *dev, 64 struct kobj_uevent_env *env) { } 65 66 static inline const void *of_device_get_match_data(const struct device *dev) 67 { 68 return NULL; 69 } 70 71 static inline int of_device_modalias(struct device *dev, 72 char *str, ssize_t len) 73 { 74 return -ENODEV; 75 } 76 77 static inline int of_device_request_module(struct device *dev) 78 { 79 return -ENODEV; 80 } 81 82 static inline int of_device_uevent_modalias(const struct device *dev, 83 struct kobj_uevent_env *env) 84 { 85 return -ENODEV; 86 } 87 88 static inline const struct of_device_id *of_match_device( 89 const struct of_device_id *matches, const struct device *dev) 90 { 91 return NULL; 92 } 93 94 static inline struct device_node *of_cpu_device_node_get(int cpu) 95 { 96 return NULL; 97 } 98 99 static inline int of_dma_configure_id(struct device *dev, 100 struct device_node *np, 101 bool force_dma, 102 const u32 *id) 103 { 104 return 0; 105 } 106 static inline int of_dma_configure(struct device *dev, 107 struct device_node *np, 108 bool force_dma) 109 { 110 return 0; 111 } 112 #endif /* CONFIG_OF */ 113 114 #endif /* _LINUX_OF_DEVICE_H */ 115