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