diff options
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 123 |
1 files changed, 82 insertions, 41 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index ce1f21608b16..6558af90c8fe 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -38,6 +38,7 @@ struct class; struct subsys_private; struct bus_type; struct device_node; +struct fwnode_handle; struct iommu_ops; struct iommu_group; @@ -650,14 +651,6 @@ struct device_dma_parameters { unsigned long segment_boundary_mask; }; -struct acpi_device; - -struct acpi_dev_node { -#ifdef CONFIG_ACPI - struct acpi_device *companion; -#endif -}; - /** * struct device - The basic device structure * @parent: The device's "parent" device, the device to which it is attached. @@ -703,7 +696,7 @@ struct acpi_dev_node { * @cma_area: Contiguous memory area for dma allocations * @archdata: For arch-specific additions. * @of_node: Associated device tree node. - * @acpi_node: Associated ACPI device node. + * @fwnode: Associated device node supplied by platform firmware. * @devt: For creating the sysfs "dev". * @id: device instance * @devres_lock: Spinlock to protect the resource of the device. @@ -779,7 +772,7 @@ struct device { struct dev_archdata archdata; struct device_node *of_node; /* associated device tree node */ - struct acpi_dev_node acpi_node; /* associated ACPI device node */ + struct fwnode_handle *fwnode; /* firmware device node */ dev_t devt; /* dev_t, creates the sysfs "dev" */ u32 id; /* device instance */ @@ -911,6 +904,18 @@ static inline void device_unlock(struct device *dev) mutex_unlock(&dev->mutex); } +static inline void device_lock_assert(struct device *dev) +{ + lockdep_assert_held(&dev->mutex); +} + +static inline struct device_node *dev_of_node(struct device *dev) +{ + if (!IS_ENABLED(CONFIG_OF)) + return NULL; + return dev->of_node; +} + void driver_init(void); /* @@ -942,6 +947,9 @@ extern void unlock_device_hotplug(void); extern int lock_device_hotplug_sysfs(void); extern int device_offline(struct device *dev); extern int device_online(struct device *dev); +extern void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode); +extern void set_secondary_fwnode(struct device *dev, struct fwnode_handle *fwnode); + /* * Root device objects for grouping under /sys/devices */ @@ -1033,22 +1041,22 @@ extern __printf(3, 4) int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...); extern __printf(3, 4) -int dev_printk(const char *level, const struct device *dev, - const char *fmt, ...); +void dev_printk(const char *level, const struct device *dev, + const char *fmt, ...); extern __printf(2, 3) -int dev_emerg(const struct device *dev, const char *fmt, ...); +void dev_emerg(const struct device *dev, const char *fmt, ...); extern __printf(2, 3) -int dev_alert(const struct device *dev, const char *fmt, ...); +void dev_alert(const struct device *dev, const char *fmt, ...); extern __printf(2, 3) -int dev_crit(const struct device *dev, const char *fmt, ...); +void dev_crit(const struct device *dev, const char *fmt, ...); extern __printf(2, 3) -int dev_err(const struct device *dev, const char *fmt, ...); +void dev_err(const struct device *dev, const char *fmt, ...); extern __printf(2, 3) -int dev_warn(const struct device *dev, const char *fmt, ...); +void dev_warn(const struct device *dev, const char *fmt, ...); extern __printf(2, 3) -int dev_notice(const struct device *dev, const char *fmt, ...); +void dev_notice(const struct device *dev, const char *fmt, ...); extern __printf(2, 3) -int _dev_info(const struct device *dev, const char *fmt, ...); +void _dev_info(const struct device *dev, const char *fmt, ...); #else @@ -1060,35 +1068,35 @@ static inline __printf(3, 4) int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...) { return 0; } -static inline int __dev_printk(const char *level, const struct device *dev, - struct va_format *vaf) -{ return 0; } +static inline void __dev_printk(const char *level, const struct device *dev, + struct va_format *vaf) +{} static inline __printf(3, 4) -int dev_printk(const char *level, const struct device *dev, - const char *fmt, ...) -{ return 0; } +void dev_printk(const char *level, const struct device *dev, + const char *fmt, ...) +{} static inline __printf(2, 3) -int dev_emerg(const struct device *dev, const char *fmt, ...) -{ return 0; } +void dev_emerg(const struct device *dev, const char *fmt, ...) +{} static inline __printf(2, 3) -int dev_crit(const struct device *dev, const char *fmt, ...) -{ return 0; } +void dev_crit(const struct device *dev, const char *fmt, ...) +{} static inline __printf(2, 3) -int dev_alert(const struct device *dev, const char *fmt, ...) -{ return 0; } +void dev_alert(const struct device *dev, const char *fmt, ...) +{} static inline __printf(2, 3) -int dev_err(const struct device *dev, const char *fmt, ...) -{ return 0; } +void dev_err(const struct device *dev, const char *fmt, ...) +{} static inline __printf(2, 3) -int dev_warn(const struct device *dev, const char *fmt, ...) -{ return 0; } +void dev_warn(const struct device *dev, const char *fmt, ...) +{} static inline __printf(2, 3) -int dev_notice(const struct device *dev, const char *fmt, ...) -{ return 0; } +void dev_notice(const struct device *dev, const char *fmt, ...) +{} static inline __printf(2, 3) -int _dev_info(const struct device *dev, const char *fmt, ...) -{ return 0; } +void _dev_info(const struct device *dev, const char *fmt, ...) +{} #endif @@ -1114,10 +1122,44 @@ do { \ ({ \ if (0) \ dev_printk(KERN_DEBUG, dev, format, ##arg); \ - 0; \ }) #endif +#ifdef CONFIG_PRINTK +#define dev_level_once(dev_level, dev, fmt, ...) \ +do { \ + static bool __print_once __read_mostly; \ + \ + if (!__print_once) { \ + __print_once = true; \ + dev_level(dev, fmt, ##__VA_ARGS__); \ + } \ +} while (0) +#else +#define dev_level_once(dev_level, dev, fmt, ...) \ +do { \ + if (0) \ + dev_level(dev, fmt, ##__VA_ARGS__); \ +} while (0) +#endif + +#define dev_emerg_once(dev, fmt, ...) \ + dev_level_once(dev_emerg, dev, fmt, ##__VA_ARGS__) +#define dev_alert_once(dev, fmt, ...) \ + dev_level_once(dev_alert, dev, fmt, ##__VA_ARGS__) +#define dev_crit_once(dev, fmt, ...) \ + dev_level_once(dev_crit, dev, fmt, ##__VA_ARGS__) +#define dev_err_once(dev, fmt, ...) \ + dev_level_once(dev_err, dev, fmt, ##__VA_ARGS__) +#define dev_warn_once(dev, fmt, ...) \ + dev_level_once(dev_warn, dev, fmt, ##__VA_ARGS__) +#define dev_notice_once(dev, fmt, ...) \ + dev_level_once(dev_notice, dev, fmt, ##__VA_ARGS__) +#define dev_info_once(dev, fmt, ...) \ + dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__) +#define dev_dbg_once(dev, fmt, ...) \ + dev_level_once(dev_dbg, dev, fmt, ##__VA_ARGS__) + #define dev_level_ratelimited(dev_level, dev, fmt, ...) \ do { \ static DEFINE_RATELIMIT_STATE(_rs, \ @@ -1175,7 +1217,6 @@ do { \ ({ \ if (0) \ dev_printk(KERN_DEBUG, dev, format, ##arg); \ - 0; \ }) #endif |