X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Fdm%2Fdevice-internal.h;h=0bf8707493a9d3f6c3d0ce368e5a7b075c64edd9;hb=11e44fc6bda2248271d26a8488f5efe189b55a30;hp=44cb7ef93bfdeea682ea0602d33bf9615260ad9d;hpb=21109577635a871d038cfd53dd75e264d0e636bf;p=u-boot diff --git a/include/dm/device-internal.h b/include/dm/device-internal.h index 44cb7ef93b..0bf8707493 100644 --- a/include/dm/device-internal.h +++ b/include/dm/device-internal.h @@ -31,13 +31,37 @@ struct udevice; * devices which use device tree. * @of_offset: Offset of device tree node for this device. This is -1 for * devices which don't use device tree. - * @devp: Returns a pointer to the bound device + * @devp: if non-NULL, returns a pointer to the bound device * @return 0 if OK, -ve on error */ -int device_bind(struct udevice *parent, struct driver *drv, +int device_bind(struct udevice *parent, const struct driver *drv, const char *name, void *platdata, int of_offset, struct udevice **devp); +/** + * device_bind_with_driver_data() - Create a device and bind it to a driver + * + * Called to set up a new device attached to a driver, in the case where the + * driver was matched to the device by means of a match table that provides + * driver_data. + * + * Once bound a device exists but is not yet active until device_probe() is + * called. + * + * @parent: Pointer to device's parent, under which this driver will exist + * @drv: Device's driver + * @name: Name of device (e.g. device tree node name) + * @driver_data: The driver_data field from the driver's match table. + * @of_offset: Offset of device tree node for this device. This is -1 for + * devices which don't use device tree. + * @devp: if non-NULL, returns a pointer to the bound device + * @return 0 if OK, -ve on error + */ +int device_bind_with_driver_data(struct udevice *parent, + const struct driver *drv, const char *name, + ulong driver_data, int of_offset, + struct udevice **devp); + /** * device_bind_by_name: Create a device and bind it to a driver * @@ -48,7 +72,7 @@ int device_bind(struct udevice *parent, struct driver *drv, * @pre_reloc_only: If true, bind the driver only if its DM_INIT_F flag is set. * If false bind the driver always. * @info: Name and platdata for this device - * @devp: Returns a pointer to the bound device + * @devp: if non-NULL, returns a pointer to the bound device * @return 0 if OK, -ve on error */ int device_bind_by_name(struct udevice *parent, bool pre_reloc_only, @@ -65,19 +89,6 @@ int device_bind_by_name(struct udevice *parent, bool pre_reloc_only, */ int device_probe(struct udevice *dev); -/** - * device_probe() - Probe a child device, activating it - * - * Activate a device so that it is ready for use. All its parents are probed - * first. The child is provided with parent data if parent_priv is not NULL. - * - * @dev: Pointer to device to probe - * @parent_priv: Pointer to parent data. If non-NULL then this is provided to - * the child. - * @return 0 if OK, -ve on error - */ -int device_probe_child(struct udevice *dev, void *parent_priv); - /** * device_remove() - Remove a device, de-activating it * @@ -87,7 +98,11 @@ int device_probe_child(struct udevice *dev, void *parent_priv); * @dev: Pointer to device to remove * @return 0 if OK, -ve on error (an error here is normally a very bad thing) */ +#if CONFIG_IS_ENABLED(DM_DEVICE_REMOVE) int device_remove(struct udevice *dev); +#else +static inline int device_remove(struct udevice *dev) { return 0; } +#endif /** * device_unbind() - Unbind a device, destroying it @@ -97,10 +112,64 @@ int device_remove(struct udevice *dev); * @dev: Pointer to device to unbind * @return 0 if OK, -ve on error */ +#if CONFIG_IS_ENABLED(DM_DEVICE_REMOVE) int device_unbind(struct udevice *dev); +#else +static inline int device_unbind(struct udevice *dev) { return 0; } +#endif + +#if CONFIG_IS_ENABLED(DM_DEVICE_REMOVE) +void device_free(struct udevice *dev); +#else +static inline void device_free(struct udevice *dev) {} +#endif + +/** + * simple_bus_translate() - translate a bus address to a system address + * + * This handles the 'ranges' property in a simple bus. It translates the + * device address @addr to a system address using this property. + * + * @dev: Simple bus device (parent of target device) + * @addr: Address to translate + * @return new address + */ +fdt_addr_t simple_bus_translate(struct udevice *dev, fdt_addr_t addr); /* Cast away any volatile pointer */ #define DM_ROOT_NON_CONST (((gd_t *)gd)->dm_root) #define DM_UCLASS_ROOT_NON_CONST (((gd_t *)gd)->uclass_root) +/* device resource management */ +#ifdef CONFIG_DEVRES + +/** + * devres_release_probe - Release managed resources allocated after probing + * @dev: Device to release resources for + * + * Release all resources allocated for @dev when it was probed or later. + * This function is called on driver removal. + */ +void devres_release_probe(struct udevice *dev); + +/** + * devres_release_all - Release all managed resources + * @dev: Device to release resources for + * + * Release all resources associated with @dev. This function is + * called on driver unbinding. + */ +void devres_release_all(struct udevice *dev); + +#else /* ! CONFIG_DEVRES */ + +static inline void devres_release_probe(struct udevice *dev) +{ +} + +static inline void devres_release_all(struct udevice *dev) +{ +} + +#endif /* ! CONFIG_DEVRES */ #endif