Lines Matching +full:async +full:- +full:enum
1 // SPDX-License-Identifier: GPL-2.0
38 return (map->dev && strcmp(dev_name(map->dev), LOG_DEVICE) == 0); in regmap_should_log()
78 if (regmap_reg_in_ranges(reg, table->no_ranges, table->n_no_ranges)) in regmap_check_range_table()
82 if (!table->n_yes_ranges) in regmap_check_range_table()
85 return regmap_reg_in_ranges(reg, table->yes_ranges, in regmap_check_range_table()
86 table->n_yes_ranges); in regmap_check_range_table()
92 if (map->max_register_is_set && reg > map->max_register) in regmap_writeable()
95 if (map->writeable_reg) in regmap_writeable()
96 return map->writeable_reg(map->dev, reg); in regmap_writeable()
98 if (map->wr_table) in regmap_writeable()
99 return regmap_check_range_table(map, reg, map->wr_table); in regmap_writeable()
109 if (map->cache_type == REGCACHE_NONE) in regmap_cached()
112 if (!map->cache_ops) in regmap_cached()
115 if (map->max_register_is_set && reg > map->max_register) in regmap_cached()
118 map->lock(map->lock_arg); in regmap_cached()
120 map->unlock(map->lock_arg); in regmap_cached()
129 if (!map->reg_read) in regmap_readable()
132 if (map->max_register_is_set && reg > map->max_register) in regmap_readable()
135 if (map->format.format_write) in regmap_readable()
138 if (map->readable_reg) in regmap_readable()
139 return map->readable_reg(map->dev, reg); in regmap_readable()
141 if (map->rd_table) in regmap_readable()
142 return regmap_check_range_table(map, reg, map->rd_table); in regmap_readable()
149 if (!map->format.format_write && !regmap_readable(map, reg)) in regmap_volatile()
152 if (map->volatile_reg) in regmap_volatile()
153 return map->volatile_reg(map->dev, reg); in regmap_volatile()
155 if (map->volatile_table) in regmap_volatile()
156 return regmap_check_range_table(map, reg, map->volatile_table); in regmap_volatile()
158 if (map->cache_ops) in regmap_volatile()
169 if (map->precious_reg) in regmap_precious()
170 return map->precious_reg(map->dev, reg); in regmap_precious()
172 if (map->precious_table) in regmap_precious()
173 return regmap_check_range_table(map, reg, map->precious_table); in regmap_precious()
180 if (map->writeable_noinc_reg) in regmap_writeable_noinc()
181 return map->writeable_noinc_reg(map->dev, reg); in regmap_writeable_noinc()
183 if (map->wr_noinc_table) in regmap_writeable_noinc()
184 return regmap_check_range_table(map, reg, map->wr_noinc_table); in regmap_writeable_noinc()
191 if (map->readable_noinc_reg) in regmap_readable_noinc()
192 return map->readable_noinc_reg(map->dev, reg); in regmap_readable_noinc()
194 if (map->rd_noinc_table) in regmap_readable_noinc()
195 return regmap_check_range_table(map, reg, map->rd_noinc_table); in regmap_readable_noinc()
215 u8 *out = map->work_buf; in regmap_format_12_20_write()
227 u8 *out = map->work_buf; in regmap_format_2_6_write()
235 __be16 *out = map->work_buf; in regmap_format_4_12_write()
242 __be16 *out = map->work_buf; in regmap_format_7_9_write()
249 u8 *out = map->work_buf; in regmap_format_7_17_write()
259 u8 *out = map->work_buf; in regmap_format_10_14_write()
398 hwspin_lock_timeout(map->hwlock, UINT_MAX); in regmap_lock_hwlock()
405 hwspin_lock_timeout_irq(map->hwlock, UINT_MAX); in regmap_lock_hwlock_irq()
413 hwspin_lock_timeout_irqsave(map->hwlock, UINT_MAX, in regmap_lock_hwlock_irqsave()
415 map->spinlock_flags = flags; in regmap_lock_hwlock_irqsave()
422 hwspin_unlock(map->hwlock); in regmap_unlock_hwlock()
429 hwspin_unlock_irq(map->hwlock); in regmap_unlock_hwlock_irq()
436 hwspin_unlock_irqrestore(map->hwlock, &map->spinlock_flags); in regmap_unlock_hwlock_irqrestore()
447 mutex_lock(&map->mutex); in regmap_lock_mutex()
453 mutex_unlock(&map->mutex); in regmap_unlock_mutex()
457 __acquires(&map->spinlock) in regmap_lock_spinlock()
462 spin_lock_irqsave(&map->spinlock, flags); in regmap_lock_spinlock()
463 map->spinlock_flags = flags; in regmap_lock_spinlock()
467 __releases(&map->spinlock) in regmap_unlock_spinlock()
470 spin_unlock_irqrestore(&map->spinlock, map->spinlock_flags); in regmap_unlock_spinlock()
474 __acquires(&map->raw_spinlock) in regmap_lock_raw_spinlock()
479 raw_spin_lock_irqsave(&map->raw_spinlock, flags); in regmap_lock_raw_spinlock()
480 map->raw_spinlock_flags = flags; in regmap_lock_raw_spinlock()
484 __releases(&map->raw_spinlock) in regmap_unlock_raw_spinlock()
487 raw_spin_unlock_irqrestore(&map->raw_spinlock, map->raw_spinlock_flags); in regmap_unlock_raw_spinlock()
502 struct rb_root *root = &map->range_tree; in _regmap_range_add()
503 struct rb_node **new = &(root->rb_node), *parent = NULL; in _regmap_range_add()
510 if (data->range_max < this->range_min) in _regmap_range_add()
511 new = &((*new)->rb_left); in _regmap_range_add()
512 else if (data->range_min > this->range_max) in _regmap_range_add()
513 new = &((*new)->rb_right); in _regmap_range_add()
518 rb_link_node(&data->node, parent, new); in _regmap_range_add()
519 rb_insert_color(&data->node, root); in _regmap_range_add()
527 struct rb_node *node = map->range_tree.rb_node; in _regmap_range_lookup()
533 if (reg < this->range_min) in _regmap_range_lookup()
534 node = node->rb_left; in _regmap_range_lookup()
535 else if (reg > this->range_max) in _regmap_range_lookup()
536 node = node->rb_right; in _regmap_range_lookup()
549 next = rb_first(&map->range_tree); in regmap_range_exit()
552 next = rb_next(&range_node->node); in regmap_range_exit()
553 rb_erase(&range_node->node, &map->range_tree); in regmap_range_exit()
557 kfree(map->selector_work_buf); in regmap_range_exit()
562 if (config->name) { in regmap_set_name()
563 const char *name = kstrdup_const(config->name, GFP_KERNEL); in regmap_set_name()
566 return -ENOMEM; in regmap_set_name()
568 kfree_const(map->name); in regmap_set_name()
569 map->name = name; in regmap_set_name()
581 map->dev = dev; in regmap_attach_dev()
594 return -ENOMEM; in regmap_attach_dev()
611 dev_get_regmap_match, (void *)map->name); in regmap_detach_dev()
614 static enum regmap_endian regmap_get_reg_endian(const struct regmap_bus *bus, in regmap_get_reg_endian()
617 enum regmap_endian endian; in regmap_get_reg_endian()
620 endian = config->reg_format_endian; in regmap_get_reg_endian()
622 /* If the regmap config specified a non-default value, use that */ in regmap_get_reg_endian()
627 if (bus && bus->reg_format_endian_default) in regmap_get_reg_endian()
628 endian = bus->reg_format_endian_default; in regmap_get_reg_endian()
630 /* If the bus specified a non-default value, use that */ in regmap_get_reg_endian()
638 enum regmap_endian regmap_get_val_endian(struct device *dev, in regmap_get_val_endian()
643 enum regmap_endian endian; in regmap_get_val_endian()
646 endian = config->val_format_endian; in regmap_get_val_endian()
648 /* If the regmap config specified a non-default value, use that */ in regmap_get_val_endian()
653 if (fwnode_property_read_bool(fwnode, "big-endian")) in regmap_get_val_endian()
655 else if (fwnode_property_read_bool(fwnode, "little-endian")) in regmap_get_val_endian()
657 else if (fwnode_property_read_bool(fwnode, "native-endian")) in regmap_get_val_endian()
665 if (bus && bus->val_format_endian_default) in regmap_get_val_endian()
666 endian = bus->val_format_endian_default; in regmap_get_val_endian()
668 /* If the bus specified a non-default value, use that */ in regmap_get_val_endian()
685 int ret = -EINVAL; in __regmap_init()
686 enum regmap_endian reg_endian, val_endian; in __regmap_init()
694 ret = -ENOMEM; in __regmap_init()
702 ret = -EINVAL; /* Later error paths rely on this */ in __regmap_init()
704 if (config->disable_locking) { in __regmap_init()
705 map->lock = map->unlock = regmap_lock_unlock_none; in __regmap_init()
706 map->can_sleep = config->can_sleep; in __regmap_init()
708 } else if (config->lock && config->unlock) { in __regmap_init()
709 map->lock = config->lock; in __regmap_init()
710 map->unlock = config->unlock; in __regmap_init()
711 map->lock_arg = config->lock_arg; in __regmap_init()
712 map->can_sleep = config->can_sleep; in __regmap_init()
713 } else if (config->use_hwlock) { in __regmap_init()
714 map->hwlock = hwspin_lock_request_specific(config->hwlock_id); in __regmap_init()
715 if (!map->hwlock) { in __regmap_init()
716 ret = -ENXIO; in __regmap_init()
720 switch (config->hwlock_mode) { in __regmap_init()
722 map->lock = regmap_lock_hwlock_irqsave; in __regmap_init()
723 map->unlock = regmap_unlock_hwlock_irqrestore; in __regmap_init()
726 map->lock = regmap_lock_hwlock_irq; in __regmap_init()
727 map->unlock = regmap_unlock_hwlock_irq; in __regmap_init()
730 map->lock = regmap_lock_hwlock; in __regmap_init()
731 map->unlock = regmap_unlock_hwlock; in __regmap_init()
735 map->lock_arg = map; in __regmap_init()
737 if ((bus && bus->fast_io) || in __regmap_init()
738 config->fast_io) { in __regmap_init()
739 if (config->use_raw_spinlock) { in __regmap_init()
740 raw_spin_lock_init(&map->raw_spinlock); in __regmap_init()
741 map->lock = regmap_lock_raw_spinlock; in __regmap_init()
742 map->unlock = regmap_unlock_raw_spinlock; in __regmap_init()
743 lockdep_set_class_and_name(&map->raw_spinlock, in __regmap_init()
746 spin_lock_init(&map->spinlock); in __regmap_init()
747 map->lock = regmap_lock_spinlock; in __regmap_init()
748 map->unlock = regmap_unlock_spinlock; in __regmap_init()
749 lockdep_set_class_and_name(&map->spinlock, in __regmap_init()
753 mutex_init(&map->mutex); in __regmap_init()
754 map->lock = regmap_lock_mutex; in __regmap_init()
755 map->unlock = regmap_unlock_mutex; in __regmap_init()
756 map->can_sleep = true; in __regmap_init()
757 lockdep_set_class_and_name(&map->mutex, in __regmap_init()
760 map->lock_arg = map; in __regmap_init()
761 map->lock_key = lock_key; in __regmap_init()
765 * When we write in fast-paths with regmap_bulk_write() don't allocate in __regmap_init()
768 if ((bus && bus->fast_io) || config->fast_io) in __regmap_init()
769 map->alloc_flags = GFP_ATOMIC; in __regmap_init()
771 map->alloc_flags = GFP_KERNEL; in __regmap_init()
773 map->reg_base = config->reg_base; in __regmap_init()
774 map->reg_shift = config->pad_bits % 8; in __regmap_init()
776 map->format.pad_bytes = config->pad_bits / 8; in __regmap_init()
777 map->format.reg_shift = config->reg_shift; in __regmap_init()
778 map->format.reg_bytes = BITS_TO_BYTES(config->reg_bits); in __regmap_init()
779 map->format.val_bytes = BITS_TO_BYTES(config->val_bits); in __regmap_init()
780 map->format.buf_size = BITS_TO_BYTES(config->reg_bits + config->val_bits + config->pad_bits); in __regmap_init()
781 if (config->reg_stride) in __regmap_init()
782 map->reg_stride = config->reg_stride; in __regmap_init()
784 map->reg_stride = 1; in __regmap_init()
785 if (is_power_of_2(map->reg_stride)) in __regmap_init()
786 map->reg_stride_order = ilog2(map->reg_stride); in __regmap_init()
788 map->reg_stride_order = -1; in __regmap_init()
789 map->use_single_read = config->use_single_read || !(config->read || (bus && bus->read)); in __regmap_init()
790 map->use_single_write = config->use_single_write || !(config->write || (bus && bus->write)); in __regmap_init()
791 map->can_multi_write = config->can_multi_write && (config->write || (bus && bus->write)); in __regmap_init()
793 map->max_raw_read = bus->max_raw_read; in __regmap_init()
794 map->max_raw_write = bus->max_raw_write; in __regmap_init()
795 } else if (config->max_raw_read && config->max_raw_write) { in __regmap_init()
796 map->max_raw_read = config->max_raw_read; in __regmap_init()
797 map->max_raw_write = config->max_raw_write; in __regmap_init()
799 map->dev = dev; in __regmap_init()
800 map->bus = bus; in __regmap_init()
801 map->bus_context = bus_context; in __regmap_init()
802 map->max_register = config->max_register; in __regmap_init()
803 map->max_register_is_set = map->max_register ?: config->max_register_is_0; in __regmap_init()
804 map->wr_table = config->wr_table; in __regmap_init()
805 map->rd_table = config->rd_table; in __regmap_init()
806 map->volatile_table = config->volatile_table; in __regmap_init()
807 map->precious_table = config->precious_table; in __regmap_init()
808 map->wr_noinc_table = config->wr_noinc_table; in __regmap_init()
809 map->rd_noinc_table = config->rd_noinc_table; in __regmap_init()
810 map->writeable_reg = config->writeable_reg; in __regmap_init()
811 map->readable_reg = config->readable_reg; in __regmap_init()
812 map->volatile_reg = config->volatile_reg; in __regmap_init()
813 map->precious_reg = config->precious_reg; in __regmap_init()
814 map->writeable_noinc_reg = config->writeable_noinc_reg; in __regmap_init()
815 map->readable_noinc_reg = config->readable_noinc_reg; in __regmap_init()
816 map->reg_default_cb = config->reg_default_cb; in __regmap_init()
817 map->cache_type = config->cache_type; in __regmap_init()
819 spin_lock_init(&map->async_lock); in __regmap_init()
820 INIT_LIST_HEAD(&map->async_list); in __regmap_init()
821 INIT_LIST_HEAD(&map->async_free); in __regmap_init()
822 init_waitqueue_head(&map->async_waitq); in __regmap_init()
824 if (config->read_flag_mask || in __regmap_init()
825 config->write_flag_mask || in __regmap_init()
826 config->zero_flag_mask) { in __regmap_init()
827 map->read_flag_mask = config->read_flag_mask; in __regmap_init()
828 map->write_flag_mask = config->write_flag_mask; in __regmap_init()
830 map->read_flag_mask = bus->read_flag_mask; in __regmap_init()
833 if (config->read && config->write) { in __regmap_init()
834 map->reg_read = _regmap_bus_read; in __regmap_init()
835 if (config->reg_update_bits) in __regmap_init()
836 map->reg_update_bits = config->reg_update_bits; in __regmap_init()
839 map->read = config->read; in __regmap_init()
840 map->write = config->write; in __regmap_init()
845 map->reg_read = config->reg_read; in __regmap_init()
846 map->reg_write = config->reg_write; in __regmap_init()
847 map->reg_update_bits = config->reg_update_bits; in __regmap_init()
849 map->defer_caching = false; in __regmap_init()
851 } else if (!bus->read || !bus->write) { in __regmap_init()
852 map->reg_read = _regmap_bus_reg_read; in __regmap_init()
853 map->reg_write = _regmap_bus_reg_write; in __regmap_init()
854 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
856 map->defer_caching = false; in __regmap_init()
859 map->reg_read = _regmap_bus_read; in __regmap_init()
860 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
862 map->read = bus->read; in __regmap_init()
863 map->write = bus->write; in __regmap_init()
869 switch (config->reg_bits + map->reg_shift) { in __regmap_init()
871 switch (config->val_bits) { in __regmap_init()
873 map->format.format_write = regmap_format_2_6_write; in __regmap_init()
881 switch (config->val_bits) { in __regmap_init()
883 map->format.format_write = regmap_format_4_12_write; in __regmap_init()
891 switch (config->val_bits) { in __regmap_init()
893 map->format.format_write = regmap_format_7_9_write; in __regmap_init()
896 map->format.format_write = regmap_format_7_17_write; in __regmap_init()
904 switch (config->val_bits) { in __regmap_init()
906 map->format.format_write = regmap_format_10_14_write; in __regmap_init()
914 switch (config->val_bits) { in __regmap_init()
916 map->format.format_write = regmap_format_12_20_write; in __regmap_init()
924 map->format.format_reg = regmap_format_8; in __regmap_init()
930 map->format.format_reg = regmap_format_16_be; in __regmap_init()
933 map->format.format_reg = regmap_format_16_le; in __regmap_init()
936 map->format.format_reg = regmap_format_16_native; in __regmap_init()
946 map->format.format_reg = regmap_format_24_be; in __regmap_init()
956 map->format.format_reg = regmap_format_32_be; in __regmap_init()
959 map->format.format_reg = regmap_format_32_le; in __regmap_init()
962 map->format.format_reg = regmap_format_32_native; in __regmap_init()
974 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
976 switch (config->val_bits) { in __regmap_init()
978 map->format.format_val = regmap_format_8; in __regmap_init()
979 map->format.parse_val = regmap_parse_8; in __regmap_init()
980 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
985 map->format.format_val = regmap_format_16_be; in __regmap_init()
986 map->format.parse_val = regmap_parse_16_be; in __regmap_init()
987 map->format.parse_inplace = regmap_parse_16_be_inplace; in __regmap_init()
990 map->format.format_val = regmap_format_16_le; in __regmap_init()
991 map->format.parse_val = regmap_parse_16_le; in __regmap_init()
992 map->format.parse_inplace = regmap_parse_16_le_inplace; in __regmap_init()
995 map->format.format_val = regmap_format_16_native; in __regmap_init()
996 map->format.parse_val = regmap_parse_16_native; in __regmap_init()
1005 map->format.format_val = regmap_format_24_be; in __regmap_init()
1006 map->format.parse_val = regmap_parse_24_be; in __regmap_init()
1015 map->format.format_val = regmap_format_32_be; in __regmap_init()
1016 map->format.parse_val = regmap_parse_32_be; in __regmap_init()
1017 map->format.parse_inplace = regmap_parse_32_be_inplace; in __regmap_init()
1020 map->format.format_val = regmap_format_32_le; in __regmap_init()
1021 map->format.parse_val = regmap_parse_32_le; in __regmap_init()
1022 map->format.parse_inplace = regmap_parse_32_le_inplace; in __regmap_init()
1025 map->format.format_val = regmap_format_32_native; in __regmap_init()
1026 map->format.parse_val = regmap_parse_32_native; in __regmap_init()
1034 if (map->format.format_write) { in __regmap_init()
1038 map->use_single_write = true; in __regmap_init()
1041 if (!map->format.format_write && in __regmap_init()
1042 !(map->format.format_reg && map->format.format_val)) in __regmap_init()
1045 map->work_buf = kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1046 if (map->work_buf == NULL) { in __regmap_init()
1047 ret = -ENOMEM; in __regmap_init()
1051 if (map->format.format_write) { in __regmap_init()
1052 map->defer_caching = false; in __regmap_init()
1053 map->reg_write = _regmap_bus_formatted_write; in __regmap_init()
1054 } else if (map->format.format_val) { in __regmap_init()
1055 map->defer_caching = true; in __regmap_init()
1056 map->reg_write = _regmap_bus_raw_write; in __regmap_init()
1061 map->range_tree = RB_ROOT; in __regmap_init()
1062 for (i = 0; i < config->num_ranges; i++) { in __regmap_init()
1063 const struct regmap_range_cfg *range_cfg = &config->ranges[i]; in __regmap_init()
1067 if (range_cfg->range_max < range_cfg->range_min) { in __regmap_init()
1068 dev_err(map->dev, "Invalid range %d: %u < %u\n", i, in __regmap_init()
1069 range_cfg->range_max, range_cfg->range_min); in __regmap_init()
1073 if (range_cfg->range_max > map->max_register) { in __regmap_init()
1074 dev_err(map->dev, "Invalid range %d: %u > %u\n", i, in __regmap_init()
1075 range_cfg->range_max, map->max_register); in __regmap_init()
1079 if (range_cfg->selector_reg > map->max_register) { in __regmap_init()
1080 dev_err(map->dev, in __regmap_init()
1085 if (range_cfg->window_len == 0) { in __regmap_init()
1086 dev_err(map->dev, "Invalid range %d: window_len 0\n", in __regmap_init()
1093 for (j = 0; j < config->num_ranges; j++) { in __regmap_init()
1094 unsigned int sel_reg = config->ranges[j].selector_reg; in __regmap_init()
1095 unsigned int win_min = config->ranges[j].window_start; in __regmap_init()
1097 config->ranges[j].window_len - 1; in __regmap_init()
1103 if (range_cfg->range_min <= sel_reg && in __regmap_init()
1104 sel_reg <= range_cfg->range_max) { in __regmap_init()
1105 dev_err(map->dev, in __regmap_init()
1111 if (!(win_max < range_cfg->range_min || in __regmap_init()
1112 win_min > range_cfg->range_max)) { in __regmap_init()
1113 dev_err(map->dev, in __regmap_init()
1122 ret = -ENOMEM; in __regmap_init()
1126 new->map = map; in __regmap_init()
1127 new->name = range_cfg->name; in __regmap_init()
1128 new->range_min = range_cfg->range_min; in __regmap_init()
1129 new->range_max = range_cfg->range_max; in __regmap_init()
1130 new->selector_reg = range_cfg->selector_reg; in __regmap_init()
1131 new->selector_mask = range_cfg->selector_mask; in __regmap_init()
1132 new->selector_shift = range_cfg->selector_shift; in __regmap_init()
1133 new->window_start = range_cfg->window_start; in __regmap_init()
1134 new->window_len = range_cfg->window_len; in __regmap_init()
1137 dev_err(map->dev, "Failed to add range %d\n", i); in __regmap_init()
1142 if (map->selector_work_buf == NULL) { in __regmap_init()
1143 map->selector_work_buf = in __regmap_init()
1144 kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1145 if (map->selector_work_buf == NULL) { in __regmap_init()
1146 ret = -ENOMEM; in __regmap_init()
1170 kfree(map->work_buf); in __regmap_init()
1172 if (map->hwlock) in __regmap_init()
1173 hwspin_lock_free(map->hwlock); in __regmap_init()
1175 kfree_const(map->name); in __regmap_init()
1179 if (bus && bus->free_on_exit) in __regmap_init()
1216 rm_field->regmap = regmap; in regmap_field_init()
1217 rm_field->reg = reg_field.reg; in regmap_field_init()
1218 rm_field->shift = reg_field.lsb; in regmap_field_init()
1219 rm_field->mask = GENMASK(reg_field.msb, reg_field.lsb); in regmap_field_init()
1221 WARN_ONCE(rm_field->mask == 0, "invalid empty mask defined\n"); in regmap_field_init()
1223 rm_field->id_size = reg_field.id_size; in regmap_field_init()
1224 rm_field->id_offset = reg_field.id_offset; in regmap_field_init()
1228 * devm_regmap_field_alloc() - Allocate and initialise a register field.
1244 return ERR_PTR(-ENOMEM); in devm_regmap_field_alloc()
1255 * regmap_field_bulk_alloc() - Allocate and initialise a bulk register field.
1262 * The return value will be an -ENOMEM on error or zero for success.
1276 return -ENOMEM; in regmap_field_bulk_alloc()
1288 * devm_regmap_field_bulk_alloc() - Allocate and initialise a bulk register
1297 * The return value will be an -ENOMEM on error or zero for success.
1312 return -ENOMEM; in devm_regmap_field_bulk_alloc()
1324 * regmap_field_bulk_free() - Free register field allocated using
1336 * devm_regmap_field_bulk_free() - Free a bulk register field allocated using
1344 * will be freed as per device-driver life-cycle.
1354 * devm_regmap_field_free() - Free a register field allocated using
1362 * will be freed as per device-driver life-cyle.
1372 * regmap_field_alloc() - Allocate and initialise a register field.
1387 return ERR_PTR(-ENOMEM); in regmap_field_alloc()
1396 * regmap_field_free() - Free register field allocated using
1408 * regmap_reinit_cache() - Reinitialise the current register cache
1428 map->max_register = config->max_register; in regmap_reinit_cache()
1429 map->max_register_is_set = map->max_register ?: config->max_register_is_0; in regmap_reinit_cache()
1430 map->writeable_reg = config->writeable_reg; in regmap_reinit_cache()
1431 map->readable_reg = config->readable_reg; in regmap_reinit_cache()
1432 map->volatile_reg = config->volatile_reg; in regmap_reinit_cache()
1433 map->precious_reg = config->precious_reg; in regmap_reinit_cache()
1434 map->writeable_noinc_reg = config->writeable_noinc_reg; in regmap_reinit_cache()
1435 map->readable_noinc_reg = config->readable_noinc_reg; in regmap_reinit_cache()
1436 map->reg_default_cb = config->reg_default_cb; in regmap_reinit_cache()
1437 map->cache_type = config->cache_type; in regmap_reinit_cache()
1445 map->cache_bypass = false; in regmap_reinit_cache()
1446 map->cache_only = false; in regmap_reinit_cache()
1453 * regmap_exit() - Free a previously allocated register map
1459 struct regmap_async *async; in regmap_exit() local
1461 regmap_detach_dev(map->dev, map); in regmap_exit()
1466 if (map->bus && map->bus->free_context) in regmap_exit()
1467 map->bus->free_context(map->bus_context); in regmap_exit()
1468 kfree(map->work_buf); in regmap_exit()
1469 while (!list_empty(&map->async_free)) { in regmap_exit()
1470 async = list_first_entry_or_null(&map->async_free, in regmap_exit()
1473 list_del(&async->list); in regmap_exit()
1474 kfree(async->work_buf); in regmap_exit()
1475 kfree(async); in regmap_exit()
1477 if (map->hwlock) in regmap_exit()
1478 hwspin_lock_free(map->hwlock); in regmap_exit()
1479 if (map->lock == regmap_lock_mutex) in regmap_exit()
1480 mutex_destroy(&map->mutex); in regmap_exit()
1481 kfree_const(map->name); in regmap_exit()
1482 kfree(map->patch); in regmap_exit()
1483 if (map->bus && map->bus->free_on_exit) in regmap_exit()
1484 kfree(map->bus); in regmap_exit()
1499 return (*r)->name && !strcmp((*r)->name, data); in dev_get_regmap_match()
1505 * dev_get_regmap() - Obtain the regmap (if any) for a device
1528 * regmap_get_device() - Obtain the device from a regmap
1536 return map->dev; in regmap_get_device()
1551 win_offset = (*reg - range->range_min) % range->window_len; in _regmap_select_page()
1552 win_page = (*reg - range->range_min) / range->window_len; in _regmap_select_page()
1556 if (*reg + val_num - 1 > range->range_max) in _regmap_select_page()
1557 return -EINVAL; in _regmap_select_page()
1560 if (val_num > range->window_len - win_offset) in _regmap_select_page()
1561 return -EINVAL; in _regmap_select_page()
1568 page_chg = in_range(range->selector_reg, range->window_start, range->window_len); in _regmap_select_page()
1570 selector_reg = range->range_min + win_page * range->window_len + in _regmap_select_page()
1571 range->selector_reg - range->window_start; in _regmap_select_page()
1588 (page_chg && selector_reg != range->selector_reg) || in _regmap_select_page()
1589 range->window_start + win_offset != range->selector_reg) { in _regmap_select_page()
1591 orig_work_buf = map->work_buf; in _regmap_select_page()
1592 map->work_buf = map->selector_work_buf; in _regmap_select_page()
1594 ret = _regmap_update_bits(map, range->selector_reg, in _regmap_select_page()
1595 range->selector_mask, in _regmap_select_page()
1596 win_page << range->selector_shift, in _regmap_select_page()
1599 map->work_buf = orig_work_buf; in _regmap_select_page()
1605 *reg = range->window_start + win_offset; in _regmap_select_page()
1616 if (!mask || !map->work_buf) in regmap_set_work_buf_flag_mask()
1619 buf = map->work_buf; in regmap_set_work_buf_flag_mask()
1627 reg += map->reg_base; in regmap_reg_addr()
1629 if (map->format.reg_shift > 0) in regmap_reg_addr()
1630 reg >>= map->format.reg_shift; in regmap_reg_addr()
1631 else if (map->format.reg_shift < 0) in regmap_reg_addr()
1632 reg <<= -(map->format.reg_shift); in regmap_reg_addr()
1642 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_raw_write_impl()
1643 map->format.pad_bytes; in _regmap_raw_write_impl()
1645 int ret = -ENOTSUPP; in _regmap_raw_write_impl()
1653 for (i = 0; i < val_len / map->format.val_bytes; i++) { in _regmap_raw_write_impl()
1658 return -EINVAL; in _regmap_raw_write_impl()
1662 if (!map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1664 int val_bytes = map->format.val_bytes; in _regmap_raw_write_impl()
1667 i = noinc ? val_len - val_bytes : 0; in _regmap_raw_write_impl()
1669 ival = map->format.parse_val(val + i); in _regmap_raw_write_impl()
1673 dev_err(map->dev, in _regmap_raw_write_impl()
1679 if (map->cache_only) { in _regmap_raw_write_impl()
1680 map->cache_dirty = true; in _regmap_raw_write_impl()
1687 int val_num = val_len / map->format.val_bytes; in _regmap_raw_write_impl()
1688 int win_offset = (reg - range->range_min) % range->window_len; in _regmap_raw_write_impl()
1689 int win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1693 dev_dbg(map->dev, "Writing window %d/%zu\n", in _regmap_raw_write_impl()
1694 win_residue, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1697 map->format.val_bytes, noinc); in _regmap_raw_write_impl()
1702 val_num -= win_residue; in _regmap_raw_write_impl()
1703 val += win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1704 val_len -= win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1706 win_offset = (reg - range->range_min) % in _regmap_raw_write_impl()
1707 range->window_len; in _regmap_raw_write_impl()
1708 win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1717 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_write_impl()
1718 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_write_impl()
1719 map->write_flag_mask); in _regmap_raw_write_impl()
1726 if (val != work_val && val_len == map->format.val_bytes) { in _regmap_raw_write_impl()
1727 memcpy(work_val, val, map->format.val_bytes); in _regmap_raw_write_impl()
1731 if (map->async && map->bus && map->bus->async_write) { in _regmap_raw_write_impl()
1732 struct regmap_async *async; in _regmap_raw_write_impl() local
1736 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1737 async = list_first_entry_or_null(&map->async_free, in _regmap_raw_write_impl()
1740 if (async) in _regmap_raw_write_impl()
1741 list_del(&async->list); in _regmap_raw_write_impl()
1742 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1744 if (!async) { in _regmap_raw_write_impl()
1745 async = map->bus->async_alloc(); in _regmap_raw_write_impl()
1746 if (!async) in _regmap_raw_write_impl()
1747 return -ENOMEM; in _regmap_raw_write_impl()
1749 async->work_buf = kzalloc(map->format.buf_size, in _regmap_raw_write_impl()
1751 if (!async->work_buf) { in _regmap_raw_write_impl()
1752 kfree(async); in _regmap_raw_write_impl()
1753 return -ENOMEM; in _regmap_raw_write_impl()
1757 async->map = map; in _regmap_raw_write_impl()
1760 memcpy(async->work_buf, map->work_buf, map->format.pad_bytes + in _regmap_raw_write_impl()
1761 map->format.reg_bytes + map->format.val_bytes); in _regmap_raw_write_impl()
1763 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1764 list_add_tail(&async->list, &map->async_list); in _regmap_raw_write_impl()
1765 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1768 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1769 async->work_buf, in _regmap_raw_write_impl()
1770 map->format.reg_bytes + in _regmap_raw_write_impl()
1771 map->format.pad_bytes, in _regmap_raw_write_impl()
1772 val, val_len, async); in _regmap_raw_write_impl()
1774 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1775 async->work_buf, in _regmap_raw_write_impl()
1776 map->format.reg_bytes + in _regmap_raw_write_impl()
1777 map->format.pad_bytes + in _regmap_raw_write_impl()
1778 val_len, NULL, 0, async); in _regmap_raw_write_impl()
1781 dev_err(map->dev, "Failed to schedule write: %d\n", in _regmap_raw_write_impl()
1784 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1785 list_move(&async->list, &map->async_free); in _regmap_raw_write_impl()
1786 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1792 trace_regmap_hw_write_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1799 ret = map->write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1800 map->format.reg_bytes + in _regmap_raw_write_impl()
1801 map->format.pad_bytes + in _regmap_raw_write_impl()
1803 else if (map->bus && map->bus->gather_write) in _regmap_raw_write_impl()
1804 ret = map->bus->gather_write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1805 map->format.reg_bytes + in _regmap_raw_write_impl()
1806 map->format.pad_bytes, in _regmap_raw_write_impl()
1809 ret = -ENOTSUPP; in _regmap_raw_write_impl()
1812 if (ret == -ENOTSUPP) { in _regmap_raw_write_impl()
1813 len = map->format.reg_bytes + map->format.pad_bytes + val_len; in _regmap_raw_write_impl()
1816 return -ENOMEM; in _regmap_raw_write_impl()
1818 memcpy(buf, map->work_buf, map->format.reg_bytes); in _regmap_raw_write_impl()
1819 memcpy(buf + map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_write_impl()
1821 ret = map->write(map->bus_context, buf, len); in _regmap_raw_write_impl()
1824 } else if (ret != 0 && !map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1826 * thus call map->cache_ops->drop() directly in _regmap_raw_write_impl()
1828 if (map->cache_ops && map->cache_ops->drop) in _regmap_raw_write_impl()
1829 map->cache_ops->drop(map, reg, reg + 1); in _regmap_raw_write_impl()
1832 trace_regmap_hw_write_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1838 * regmap_can_raw_write - Test if regmap_raw_write() is supported
1844 return map->write && map->format.format_val && map->format.format_reg; in regmap_can_raw_write()
1849 * regmap_get_raw_read_max - Get the maximum size we can read
1855 return map->max_raw_read; in regmap_get_raw_read_max()
1860 * regmap_get_raw_write_max - Get the maximum size we can read
1866 return map->max_raw_write; in regmap_get_raw_write_max()
1877 WARN_ON(!map->format.format_write); in _regmap_bus_formatted_write()
1887 map->format.format_write(map, reg, val); in _regmap_bus_formatted_write()
1891 ret = map->write(map->bus_context, map->work_buf, map->format.buf_size); in _regmap_bus_formatted_write()
1913 return map->bus->reg_write(map->bus_context, reg, val); in _regmap_bus_reg_write()
1921 WARN_ON(!map->format.format_val); in _regmap_bus_raw_write()
1923 map->format.format_val(map->work_buf + map->format.reg_bytes in _regmap_bus_raw_write()
1924 + map->format.pad_bytes, val, 0); in _regmap_bus_raw_write()
1926 map->work_buf + in _regmap_bus_raw_write()
1927 map->format.reg_bytes + in _regmap_bus_raw_write()
1928 map->format.pad_bytes, in _regmap_bus_raw_write()
1929 map->format.val_bytes, in _regmap_bus_raw_write()
1935 return (map->bus || (!map->bus && map->read)) ? map : map->bus_context; in _regmap_map_get_context()
1945 return -EIO; in _regmap_write()
1947 if (!map->cache_bypass && !map->defer_caching) { in _regmap_write()
1951 if (map->cache_only) { in _regmap_write()
1952 map->cache_dirty = true; in _regmap_write()
1957 ret = map->reg_write(context, reg, val); in _regmap_write()
1960 dev_info(map->dev, "%x <= %x\n", reg, val); in _regmap_write()
1969 * regmap_write() - Write a value to a single register
1982 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write()
1983 return -EINVAL; in regmap_write()
1985 map->lock(map->lock_arg); in regmap_write()
1989 map->unlock(map->lock_arg); in regmap_write()
1996 * regmap_write_async() - Write a value to a single register asynchronously
2009 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write_async()
2010 return -EINVAL; in regmap_write_async()
2012 map->lock(map->lock_arg); in regmap_write_async()
2014 map->async = true; in regmap_write_async()
2018 map->async = false; in regmap_write_async()
2020 map->unlock(map->lock_arg); in regmap_write_async()
2029 size_t val_bytes = map->format.val_bytes; in _regmap_raw_write()
2036 return -EINVAL; in _regmap_raw_write()
2038 if (map->use_single_write) in _regmap_raw_write()
2040 else if (map->max_raw_write && val_len > map->max_raw_write) in _regmap_raw_write()
2041 chunk_regs = map->max_raw_write / val_bytes; in _regmap_raw_write()
2054 val_len -= chunk_bytes; in _regmap_raw_write()
2065 * regmap_raw_write() - Write raw values to one or more registers
2086 return -EINVAL; in regmap_raw_write()
2087 if (val_len % map->format.val_bytes) in regmap_raw_write()
2088 return -EINVAL; in regmap_raw_write()
2090 map->lock(map->lock_arg); in regmap_raw_write()
2094 map->unlock(map->lock_arg); in regmap_raw_write()
2103 size_t val_bytes = map->format.val_bytes; in regmap_noinc_readwrite()
2116 lastval = (unsigned int)u8p[val_count - 1]; in regmap_noinc_readwrite()
2121 lastval = (unsigned int)u16p[val_count - 1]; in regmap_noinc_readwrite()
2126 lastval = (unsigned int)u32p[val_count - 1]; in regmap_noinc_readwrite()
2129 return -EINVAL; in regmap_noinc_readwrite()
2138 if (!map->cache_bypass && !map->defer_caching) { in regmap_noinc_readwrite()
2142 if (map->cache_only) { in regmap_noinc_readwrite()
2143 map->cache_dirty = true; in regmap_noinc_readwrite()
2147 ret = map->bus->reg_noinc_write(map->bus_context, reg, val, val_count); in regmap_noinc_readwrite()
2149 ret = map->bus->reg_noinc_read(map->bus_context, reg, val, val_count); in regmap_noinc_readwrite()
2153 dev_info(map->dev, "%x %s [", reg, write ? "<=" : "=>"); in regmap_noinc_readwrite()
2168 if (i == (val_count - 1)) in regmap_noinc_readwrite()
2205 if (!map->write && !(map->bus && map->bus->reg_noinc_write)) in regmap_noinc_write()
2206 return -EINVAL; in regmap_noinc_write()
2207 if (val_len % map->format.val_bytes) in regmap_noinc_write()
2208 return -EINVAL; in regmap_noinc_write()
2209 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_write()
2210 return -EINVAL; in regmap_noinc_write()
2212 return -EINVAL; in regmap_noinc_write()
2214 map->lock(map->lock_arg); in regmap_noinc_write()
2217 ret = -EINVAL; in regmap_noinc_write()
2225 if (map->bus->reg_noinc_write) { in regmap_noinc_write()
2231 if (map->max_raw_write && map->max_raw_write < val_len) in regmap_noinc_write()
2232 write_len = map->max_raw_write; in regmap_noinc_write()
2239 val_len -= write_len; in regmap_noinc_write()
2243 map->unlock(map->lock_arg); in regmap_noinc_write()
2249 * regmap_field_update_bits_base() - Perform a read/modify/write cycle a
2256 * @async: Boolean indicating asynchronously
2260 * async, force option.
2267 bool *change, bool async, bool force) in regmap_field_update_bits_base() argument
2269 mask = (mask << field->shift) & field->mask; in regmap_field_update_bits_base()
2271 return regmap_update_bits_base(field->regmap, field->reg, in regmap_field_update_bits_base()
2272 mask, val << field->shift, in regmap_field_update_bits_base()
2273 change, async, force); in regmap_field_update_bits_base()
2278 * regmap_field_test_bits() - Check if all specified bits are set in a
2302 * regmap_fields_update_bits_base() - Perform a read/modify/write cycle a
2310 * @async: Boolean indicating asynchronously
2318 bool *change, bool async, bool force) in regmap_fields_update_bits_base() argument
2320 if (id >= field->id_size) in regmap_fields_update_bits_base()
2321 return -EINVAL; in regmap_fields_update_bits_base()
2323 mask = (mask << field->shift) & field->mask; in regmap_fields_update_bits_base()
2325 return regmap_update_bits_base(field->regmap, in regmap_fields_update_bits_base()
2326 field->reg + (field->id_offset * id), in regmap_fields_update_bits_base()
2327 mask, val << field->shift, in regmap_fields_update_bits_base()
2328 change, async, force); in regmap_fields_update_bits_base()
2333 * regmap_bulk_write() - Write multiple registers to the device
2350 size_t val_bytes = map->format.val_bytes; in regmap_bulk_write()
2352 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_write()
2353 return -EINVAL; in regmap_bulk_write()
2359 if (!map->write || !map->format.parse_inplace) { in regmap_bulk_write()
2360 map->lock(map->lock_arg); in regmap_bulk_write()
2375 ret = -EINVAL; in regmap_bulk_write()
2386 map->unlock(map->lock_arg); in regmap_bulk_write()
2390 wval = kmemdup_array(val, val_count, val_bytes, map->alloc_flags); in regmap_bulk_write()
2392 return -ENOMEM; in regmap_bulk_write()
2395 map->format.parse_inplace(wval + i); in regmap_bulk_write()
2424 size_t val_bytes = map->format.val_bytes; in _regmap_raw_multi_reg_write()
2425 size_t reg_bytes = map->format.reg_bytes; in _regmap_raw_multi_reg_write()
2426 size_t pad_bytes = map->format.pad_bytes; in _regmap_raw_multi_reg_write()
2431 return -EINVAL; in _regmap_raw_multi_reg_write()
2435 return -ENOMEM; in _regmap_raw_multi_reg_write()
2446 map->format.format_reg(u8, reg, map->reg_shift); in _regmap_raw_multi_reg_write()
2448 map->format.format_val(u8, val, 0); in _regmap_raw_multi_reg_write()
2452 *u8 |= map->write_flag_mask; in _regmap_raw_multi_reg_write()
2454 ret = map->write(map->bus_context, buf, len); in _regmap_raw_multi_reg_write()
2469 unsigned int win_page = (reg - range->range_min) / range->window_len; in _regmap_register_page()
2528 if (map->can_sleep) in _regmap_range_multi_paged_reg_write()
2562 if (!map->can_multi_write) { in _regmap_multi_reg_write()
2569 if (map->can_sleep) in _regmap_multi_reg_write()
2578 if (!map->format.parse_inplace) in _regmap_multi_reg_write()
2579 return -EINVAL; in _regmap_multi_reg_write()
2581 if (map->writeable_reg) in _regmap_multi_reg_write()
2584 if (!map->writeable_reg(map->dev, reg)) in _regmap_multi_reg_write()
2585 return -EINVAL; in _regmap_multi_reg_write()
2586 if (!IS_ALIGNED(reg, map->reg_stride)) in _regmap_multi_reg_write()
2587 return -EINVAL; in _regmap_multi_reg_write()
2590 if (!map->cache_bypass) { in _regmap_multi_reg_write()
2596 dev_err(map->dev, in _regmap_multi_reg_write()
2602 if (map->cache_only) { in _regmap_multi_reg_write()
2603 map->cache_dirty = true; in _regmap_multi_reg_write()
2608 WARN_ON(!map->bus); in _regmap_multi_reg_write()
2623 return -ENOMEM; in _regmap_multi_reg_write()
2635 * regmap_multi_reg_write() - Write multiple registers to the device
2658 map->lock(map->lock_arg); in regmap_multi_reg_write()
2662 map->unlock(map->lock_arg); in regmap_multi_reg_write()
2669 * regmap_multi_reg_write_bypassed() - Write multiple registers to the
2693 map->lock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2695 bypass = map->cache_bypass; in regmap_multi_reg_write_bypassed()
2696 map->cache_bypass = true; in regmap_multi_reg_write_bypassed()
2700 map->cache_bypass = bypass; in regmap_multi_reg_write_bypassed()
2702 map->unlock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2709 * regmap_raw_write_async() - Write raw values to one or more registers
2735 if (val_len % map->format.val_bytes) in regmap_raw_write_async()
2736 return -EINVAL; in regmap_raw_write_async()
2737 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_write_async()
2738 return -EINVAL; in regmap_raw_write_async()
2740 map->lock(map->lock_arg); in regmap_raw_write_async()
2742 map->async = true; in regmap_raw_write_async()
2746 map->async = false; in regmap_raw_write_async()
2748 map->unlock(map->lock_arg); in regmap_raw_write_async()
2760 if (!map->read) in _regmap_raw_read()
2761 return -EINVAL; in _regmap_raw_read()
2766 noinc ? 1 : val_len / map->format.val_bytes); in _regmap_raw_read()
2772 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_read()
2773 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_read()
2774 map->read_flag_mask); in _regmap_raw_read()
2775 trace_regmap_hw_read_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2777 ret = map->read(map->bus_context, map->work_buf, in _regmap_raw_read()
2778 map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_read()
2781 trace_regmap_hw_read_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2801 return map->bus->reg_read(map->bus_context, reg, val); in _regmap_bus_reg_read()
2809 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_bus_read()
2810 map->format.pad_bytes; in _regmap_bus_read()
2812 if (!map->format.parse_val) in _regmap_bus_read()
2813 return -EINVAL; in _regmap_bus_read()
2815 ret = _regmap_raw_read(map, reg, work_val, map->format.val_bytes, false); in _regmap_bus_read()
2817 *val = map->format.parse_val(work_val); in _regmap_bus_read()
2828 if (!map->cache_bypass) { in _regmap_read()
2834 if (map->cache_only) in _regmap_read()
2835 return -EBUSY; in _regmap_read()
2838 return -EIO; in _regmap_read()
2840 ret = map->reg_read(context, reg, val); in _regmap_read()
2843 dev_info(map->dev, "%x => %x\n", reg, *val); in _regmap_read()
2847 if (!map->cache_bypass) in _regmap_read()
2855 * regmap_read() - Read a value from a single register
2868 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_read()
2869 return -EINVAL; in regmap_read()
2871 map->lock(map->lock_arg); in regmap_read()
2875 map->unlock(map->lock_arg); in regmap_read()
2882 * regmap_read_bypassed() - Read a value from a single register direct
2897 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_read_bypassed()
2898 return -EINVAL; in regmap_read_bypassed()
2900 map->lock(map->lock_arg); in regmap_read_bypassed()
2902 bypass = map->cache_bypass; in regmap_read_bypassed()
2903 cache_only = map->cache_only; in regmap_read_bypassed()
2904 map->cache_bypass = true; in regmap_read_bypassed()
2905 map->cache_only = false; in regmap_read_bypassed()
2909 map->cache_bypass = bypass; in regmap_read_bypassed()
2910 map->cache_only = cache_only; in regmap_read_bypassed()
2912 map->unlock(map->lock_arg); in regmap_read_bypassed()
2919 * regmap_raw_read() - Read raw data from the device
2932 size_t val_bytes = map->format.val_bytes; in regmap_raw_read()
2937 if (val_len % map->format.val_bytes) in regmap_raw_read()
2938 return -EINVAL; in regmap_raw_read()
2939 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_read()
2940 return -EINVAL; in regmap_raw_read()
2942 return -EINVAL; in regmap_raw_read()
2944 map->lock(map->lock_arg); in regmap_raw_read()
2946 if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || in regmap_raw_read()
2947 map->cache_type == REGCACHE_NONE) { in regmap_raw_read()
2951 if (!map->cache_bypass && map->cache_only) { in regmap_raw_read()
2952 ret = -EBUSY; in regmap_raw_read()
2956 if (!map->read) { in regmap_raw_read()
2957 ret = -ENOTSUPP; in regmap_raw_read()
2961 if (map->use_single_read) in regmap_raw_read()
2963 else if (map->max_raw_read && val_len > map->max_raw_read) in regmap_raw_read()
2964 chunk_regs = map->max_raw_read / val_bytes; in regmap_raw_read()
2977 val_len -= chunk_bytes; in regmap_raw_read()
2996 map->format.format_val(val + (i * val_bytes), v, 0); in regmap_raw_read()
3001 map->unlock(map->lock_arg); in regmap_raw_read()
3034 if (!map->read) in regmap_noinc_read()
3035 return -ENOTSUPP; in regmap_noinc_read()
3037 if (val_len % map->format.val_bytes) in regmap_noinc_read()
3038 return -EINVAL; in regmap_noinc_read()
3039 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_read()
3040 return -EINVAL; in regmap_noinc_read()
3042 return -EINVAL; in regmap_noinc_read()
3044 map->lock(map->lock_arg); in regmap_noinc_read()
3047 ret = -EINVAL; in regmap_noinc_read()
3057 if (!map->cache_bypass && map->cache_only) { in regmap_noinc_read()
3058 ret = -EBUSY; in regmap_noinc_read()
3063 if (map->bus->reg_noinc_read) { in regmap_noinc_read()
3069 if (map->max_raw_read && map->max_raw_read < val_len) in regmap_noinc_read()
3070 read_len = map->max_raw_read; in regmap_noinc_read()
3077 val_len -= read_len; in regmap_noinc_read()
3081 map->unlock(map->lock_arg); in regmap_noinc_read()
3099 ret = regmap_read(field->regmap, field->reg, ®_val); in regmap_field_read()
3103 reg_val &= field->mask; in regmap_field_read()
3104 reg_val >>= field->shift; in regmap_field_read()
3112 * regmap_fields_read() - Read a value to a single register field with port ID
3127 if (id >= field->id_size) in regmap_fields_read()
3128 return -EINVAL; in regmap_fields_read()
3130 ret = regmap_read(field->regmap, in regmap_fields_read()
3131 field->reg + (field->id_offset * id), in regmap_fields_read()
3136 reg_val &= field->mask; in regmap_fields_read()
3137 reg_val >>= field->shift; in regmap_fields_read()
3152 map->lock(map->lock_arg); in _regmap_bulk_read()
3158 if (!IS_ALIGNED(regs[i], map->reg_stride)) { in _regmap_bulk_read()
3159 ret = -EINVAL; in _regmap_bulk_read()
3169 switch (map->format.val_bytes) { in _regmap_bulk_read()
3180 ret = -EINVAL; in _regmap_bulk_read()
3185 map->unlock(map->lock_arg); in _regmap_bulk_read()
3190 * regmap_bulk_read() - Read multiple sequential registers from the device
3204 size_t val_bytes = map->format.val_bytes; in regmap_bulk_read()
3207 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_read()
3208 return -EINVAL; in regmap_bulk_read()
3210 return -EINVAL; in regmap_bulk_read()
3212 if (map->read && map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) { in regmap_bulk_read()
3218 map->format.parse_inplace(val + i); in regmap_bulk_read()
3229 * regmap_multi_reg_read() - Read multiple non-sequential registers from the device
3243 return -EINVAL; in regmap_multi_reg_read()
3259 if (regmap_volatile(map, reg) && map->reg_update_bits) { in _regmap_update_bits()
3260 if (map->cache_only) in _regmap_update_bits()
3261 return -EBUSY; in _regmap_update_bits()
3264 ret = map->reg_update_bits(map->bus_context, reg, mask, val); in _regmap_update_bits()
3275 if (force_write || (tmp != orig) || map->force_write_field) { in _regmap_update_bits()
3286 * regmap_update_bits_base() - Perform a read/modify/write cycle on a register
3293 * @async: Boolean indicating asynchronously
3296 * Perform a read/modify/write cycle on a register map with change, async, force
3299 * If async is true:
3309 bool *change, bool async, bool force) in regmap_update_bits_base() argument
3313 map->lock(map->lock_arg); in regmap_update_bits_base()
3315 map->async = async; in regmap_update_bits_base()
3319 map->async = false; in regmap_update_bits_base()
3321 map->unlock(map->lock_arg); in regmap_update_bits_base()
3328 * regmap_test_bits() - Check if all specified bits are set in a register.
3351 void regmap_async_complete_cb(struct regmap_async *async, int ret) in regmap_async_complete_cb() argument
3353 struct regmap *map = async->map; in regmap_async_complete_cb()
3358 spin_lock(&map->async_lock); in regmap_async_complete_cb()
3359 list_move(&async->list, &map->async_free); in regmap_async_complete_cb()
3360 wake = list_empty(&map->async_list); in regmap_async_complete_cb()
3363 map->async_ret = ret; in regmap_async_complete_cb()
3365 spin_unlock(&map->async_lock); in regmap_async_complete_cb()
3368 wake_up(&map->async_waitq); in regmap_async_complete_cb()
3377 spin_lock_irqsave(&map->async_lock, flags); in regmap_async_is_done()
3378 ret = list_empty(&map->async_list); in regmap_async_is_done()
3379 spin_unlock_irqrestore(&map->async_lock, flags); in regmap_async_is_done()
3385 * regmap_async_complete - Ensure all asynchronous I/O has completed.
3397 /* Nothing to do with no async support */ in regmap_async_complete()
3398 if (!map->bus || !map->bus->async_write) in regmap_async_complete()
3403 wait_event(map->async_waitq, regmap_async_is_done(map)); in regmap_async_complete()
3405 spin_lock_irqsave(&map->async_lock, flags); in regmap_async_complete()
3406 ret = map->async_ret; in regmap_async_complete()
3407 map->async_ret = 0; in regmap_async_complete()
3408 spin_unlock_irqrestore(&map->async_lock, flags); in regmap_async_complete()
3417 * regmap_register_patch - Register and apply register updates to be applied
3444 p = krealloc(map->patch, in regmap_register_patch()
3445 sizeof(struct reg_sequence) * (map->patch_regs + num_regs), in regmap_register_patch()
3448 memcpy(p + map->patch_regs, regs, num_regs * sizeof(*regs)); in regmap_register_patch()
3449 map->patch = p; in regmap_register_patch()
3450 map->patch_regs += num_regs; in regmap_register_patch()
3452 return -ENOMEM; in regmap_register_patch()
3455 map->lock(map->lock_arg); in regmap_register_patch()
3457 bypass = map->cache_bypass; in regmap_register_patch()
3459 map->cache_bypass = true; in regmap_register_patch()
3460 map->async = true; in regmap_register_patch()
3464 map->async = false; in regmap_register_patch()
3465 map->cache_bypass = bypass; in regmap_register_patch()
3467 map->unlock(map->lock_arg); in regmap_register_patch()
3476 * regmap_get_val_bytes() - Report the size of a register value
3485 if (map->format.format_write) in regmap_get_val_bytes()
3486 return -EINVAL; in regmap_get_val_bytes()
3488 return map->format.val_bytes; in regmap_get_val_bytes()
3493 * regmap_get_max_register() - Report the max register value
3502 return map->max_register_is_set ? map->max_register : -EINVAL; in regmap_get_max_register()
3507 * regmap_get_reg_stride() - Report the register address stride
3516 return map->reg_stride; in regmap_get_reg_stride()
3521 * regmap_might_sleep() - Returns whether a regmap access might sleep.
3529 return map->can_sleep; in regmap_might_sleep()
3536 if (!map->format.parse_val) in regmap_parse_val()
3537 return -EINVAL; in regmap_parse_val()
3539 *val = map->format.parse_val(buf); in regmap_parse_val()