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 int of_device_add(struct platform_device *pdev); 30 extern int of_device_register(struct platform_device *ofdev); 31 extern void of_device_unregister(struct platform_device *ofdev); 32 33 extern const void *of_device_get_match_data(const struct device *dev); 34 35 extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len); 36 extern int of_device_request_module(struct device *dev); 37 38 extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env); 39 extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env); 40 41 static inline struct device_node *of_cpu_device_node_get(int cpu) 42 { 43 struct device *cpu_dev; 44 cpu_dev = get_cpu_device(cpu); 45 if (!cpu_dev) 46 return of_get_cpu_node(cpu, NULL); 47 return of_node_get(cpu_dev->of_node); 48 } 49 50 int of_dma_configure_id(struct device *dev, 51 struct device_node *np, 52 bool force_dma, const u32 *id); 53 static inline int of_dma_configure(struct device *dev, 54 struct device_node *np, 55 bool force_dma) 56 { 57 return of_dma_configure_id(dev, np, force_dma, NULL); 58 } 59 #else /* CONFIG_OF */ 60 61 static inline int of_driver_match_device(struct device *dev, 62 const struct device_driver *drv) 63 { 64 return 0; 65 } 66 67 static inline void of_device_uevent(struct device *dev, 68 struct kobj_uevent_env *env) { } 69 70 static inline const void *of_device_get_match_data(const struct device *dev) 71 { 72 return NULL; 73 } 74 75 static inline int of_device_modalias(struct device *dev, 76 char *str, ssize_t len) 77 { 78 return -ENODEV; 79 } 80 81 static inline int of_device_request_module(struct device *dev) 82 { 83 return -ENODEV; 84 } 85 86 static inline int of_device_uevent_modalias(struct device *dev, 87 struct kobj_uevent_env *env) 88 { 89 return -ENODEV; 90 } 91 92 static inline const struct of_device_id *of_match_device( 93 const struct of_device_id *matches, const struct device *dev) 94 { 95 return NULL; 96 } 97 98 static inline struct device_node *of_cpu_device_node_get(int cpu) 99 { 100 return NULL; 101 } 102 103 static inline int of_dma_configure_id(struct device *dev, 104 struct device_node *np, 105 bool force_dma, 106 const u32 *id) 107 { 108 return 0; 109 } 110 static inline int of_dma_configure(struct device *dev, 111 struct device_node *np, 112 bool force_dma) 113 { 114 return 0; 115 } 116 #endif /* CONFIG_OF */ 117 118 #endif /* _LINUX_OF_DEVICE_H */ 119