u-boot/include/syscon.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
14  * struct syscon_uc_info - Information stored by the syscon UCLASS_UCLASS
16  * @regmap:	Register map for this controller
26 #define syscon_get_ops(dev)        ((struct syscon_ops *)(dev)->driver->ops)
30  * We don't support 64-bit machines. If they are so resource-contrained that
34  * Update: 64-bit is now supported and we have an education crisis.
42  * syscon_get_regmap() - Get access to a register map
46  * @return 0 if OK, -ve on error
51  * syscon_get_regmap_by_driver_data() - Look up a controller by its ID
53  * Each system controller can be accessed by its driver data, which is
54  * assumed to be unique through the scope of all system controllers that
55  * are in use. This function looks up the controller given this driver data.
58  * @devp:		Returns the controller correponding to @driver_data
59  * @return 0 on success, -ENODEV if the ID was not found, or other -ve error
65  * syscon_get_regmap_by_driver_data() - Look up a controller by its ID
67  * Each system controller can be accessed by its driver data, which is
68  * assumed to be unique through the scope of all system controllers that
72  * @return register map correponding to @driver_data, or -ve error code
77  * syscon_regmap_lookup_by_phandle() - Look up a controller by a phandle
80  * tree property) of the device using the system controller.
82  * @dev:	Device using the system controller
83  * @name:	Name of property referring to the system controller
84  * @return	A pointer to the regmap if found, ERR_PTR(-ve) on error
90  * syscon_get_first_range() - get the first memory range from a syscon regmap
94  *			-ve error code
99  * syscon_node_to_regmap - get regmap from syscon