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 void of_device_node_put(struct device *dev) 42 { 43 of_node_put(dev->of_node); 44 } 45 46 static inline struct device_node *of_cpu_device_node_get(int cpu) 47 { 48 struct device *cpu_dev; 49 cpu_dev = get_cpu_device(cpu); 50 if (!cpu_dev) 51 return of_get_cpu_node(cpu, NULL); 52 return of_node_get(cpu_dev->of_node); 53 } 54 55 int of_dma_configure_id(struct device *dev, 56 struct device_node *np, 57 bool force_dma, const u32 *id); 58 static inline int of_dma_configure(struct device *dev, 59 struct device_node *np, 60 bool force_dma) 61 { 62 return of_dma_configure_id(dev, np, force_dma, NULL); 63 } 64 #else /* CONFIG_OF */ 65 66 static inline int of_driver_match_device(struct device *dev, 67 const struct device_driver *drv) 68 { 69 return 0; 70 } 71 72 static inline void of_device_uevent(struct device *dev, 73 struct kobj_uevent_env *env) { } 74 75 static inline const void *of_device_get_match_data(const struct device *dev) 76 { 77 return NULL; 78 } 79 80 static inline int of_device_modalias(struct device *dev, 81 char *str, ssize_t len) 82 { 83 return -ENODEV; 84 } 85 86 static inline int of_device_request_module(struct device *dev) 87 { 88 return -ENODEV; 89 } 90 91 static inline int of_device_uevent_modalias(struct device *dev, 92 struct kobj_uevent_env *env) 93 { 94 return -ENODEV; 95 } 96 97 static inline void of_device_node_put(struct device *dev) { } 98 99 static inline const struct of_device_id *of_match_device( 100 const struct of_device_id *matches, const struct device *dev) 101 { 102 return NULL; 103 } 104 105 static inline struct device_node *of_cpu_device_node_get(int cpu) 106 { 107 return NULL; 108 } 109 110 static inline int of_dma_configure_id(struct device *dev, 111 struct device_node *np, 112 bool force_dma) 113 { 114 return 0; 115 } 116 static inline int of_dma_configure(struct device *dev, 117 struct device_node *np, 118 bool force_dma) 119 { 120 return 0; 121 } 122 #endif /* CONFIG_OF */ 123 124 #endif /* _LINUX_OF_DEVICE_H */ 125