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