Lines Matching +full:bus +full:- +full:range
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 && 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 && 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 && 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()
463 hwspin_lock_timeout(map->hwlock, UINT_MAX); in regmap_lock_hwlock()
470 hwspin_lock_timeout_irq(map->hwlock, UINT_MAX); in regmap_lock_hwlock_irq()
477 hwspin_lock_timeout_irqsave(map->hwlock, UINT_MAX, in regmap_lock_hwlock_irqsave()
478 &map->spinlock_flags); in regmap_lock_hwlock_irqsave()
485 hwspin_unlock(map->hwlock); in regmap_unlock_hwlock()
492 hwspin_unlock_irq(map->hwlock); in regmap_unlock_hwlock_irq()
499 hwspin_unlock_irqrestore(map->hwlock, &map->spinlock_flags); in regmap_unlock_hwlock_irqrestore()
510 mutex_lock(&map->mutex); in regmap_lock_mutex()
516 mutex_unlock(&map->mutex); in regmap_unlock_mutex()
520 __acquires(&map->spinlock) in regmap_lock_spinlock()
525 spin_lock_irqsave(&map->spinlock, flags); in regmap_lock_spinlock()
526 map->spinlock_flags = flags; in regmap_lock_spinlock()
530 __releases(&map->spinlock) in regmap_unlock_spinlock()
533 spin_unlock_irqrestore(&map->spinlock, map->spinlock_flags); in regmap_unlock_spinlock()
537 __acquires(&map->raw_spinlock) in regmap_lock_raw_spinlock()
542 raw_spin_lock_irqsave(&map->raw_spinlock, flags); in regmap_lock_raw_spinlock()
543 map->raw_spinlock_flags = flags; in regmap_lock_raw_spinlock()
547 __releases(&map->raw_spinlock) in regmap_unlock_raw_spinlock()
550 raw_spin_unlock_irqrestore(&map->raw_spinlock, map->raw_spinlock_flags); in regmap_unlock_raw_spinlock()
565 struct rb_root *root = &map->range_tree; in _regmap_range_add()
566 struct rb_node **new = &(root->rb_node), *parent = NULL; in _regmap_range_add()
573 if (data->range_max < this->range_min) in _regmap_range_add()
574 new = &((*new)->rb_left); in _regmap_range_add()
575 else if (data->range_min > this->range_max) in _regmap_range_add()
576 new = &((*new)->rb_right); in _regmap_range_add()
581 rb_link_node(&data->node, parent, new); in _regmap_range_add()
582 rb_insert_color(&data->node, root); in _regmap_range_add()
590 struct rb_node *node = map->range_tree.rb_node; in _regmap_range_lookup()
596 if (reg < this->range_min) in _regmap_range_lookup()
597 node = node->rb_left; in _regmap_range_lookup()
598 else if (reg > this->range_max) in _regmap_range_lookup()
599 node = node->rb_right; in _regmap_range_lookup()
612 next = rb_first(&map->range_tree); in regmap_range_exit()
615 next = rb_next(&range_node->node); in regmap_range_exit()
616 rb_erase(&range_node->node, &map->range_tree); in regmap_range_exit()
620 kfree(map->selector_work_buf); in regmap_range_exit()
625 if (config->name) { in regmap_set_name()
626 const char *name = kstrdup_const(config->name, GFP_KERNEL); in regmap_set_name()
629 return -ENOMEM; in regmap_set_name()
631 kfree_const(map->name); in regmap_set_name()
632 map->name = name; in regmap_set_name()
644 map->dev = dev; in regmap_attach_dev()
656 return -ENOMEM; in regmap_attach_dev()
665 static enum regmap_endian regmap_get_reg_endian(const struct regmap_bus *bus, in regmap_get_reg_endian() argument
671 endian = config->reg_format_endian; in regmap_get_reg_endian()
673 /* If the regmap config specified a non-default value, use that */ in regmap_get_reg_endian()
677 /* Retrieve the endianness specification from the bus config */ in regmap_get_reg_endian()
678 if (bus && bus->reg_format_endian_default) in regmap_get_reg_endian()
679 endian = bus->reg_format_endian_default; in regmap_get_reg_endian()
681 /* If the bus specified a non-default value, use that */ in regmap_get_reg_endian()
690 const struct regmap_bus *bus, in regmap_get_val_endian() argument
697 endian = config->val_format_endian; in regmap_get_val_endian()
699 /* If the regmap config specified a non-default value, use that */ in regmap_get_val_endian()
704 if (fwnode_property_read_bool(fwnode, "big-endian")) in regmap_get_val_endian()
706 else if (fwnode_property_read_bool(fwnode, "little-endian")) in regmap_get_val_endian()
708 else if (fwnode_property_read_bool(fwnode, "native-endian")) in regmap_get_val_endian()
715 /* Retrieve the endianness specification from the bus config */ in regmap_get_val_endian()
716 if (bus && bus->val_format_endian_default) in regmap_get_val_endian()
717 endian = bus->val_format_endian_default; in regmap_get_val_endian()
719 /* If the bus specified a non-default value, use that */ in regmap_get_val_endian()
729 const struct regmap_bus *bus, in __regmap_init() argument
736 int ret = -EINVAL; in __regmap_init()
745 ret = -ENOMEM; in __regmap_init()
753 ret = -EINVAL; /* Later error paths rely on this */ in __regmap_init()
755 if (config->disable_locking) { in __regmap_init()
756 map->lock = map->unlock = regmap_lock_unlock_none; in __regmap_init()
757 map->can_sleep = config->can_sleep; in __regmap_init()
759 } else if (config->lock && config->unlock) { in __regmap_init()
760 map->lock = config->lock; in __regmap_init()
761 map->unlock = config->unlock; in __regmap_init()
762 map->lock_arg = config->lock_arg; in __regmap_init()
763 map->can_sleep = config->can_sleep; in __regmap_init()
764 } else if (config->use_hwlock) { in __regmap_init()
765 map->hwlock = hwspin_lock_request_specific(config->hwlock_id); in __regmap_init()
766 if (!map->hwlock) { in __regmap_init()
767 ret = -ENXIO; in __regmap_init()
771 switch (config->hwlock_mode) { in __regmap_init()
773 map->lock = regmap_lock_hwlock_irqsave; in __regmap_init()
774 map->unlock = regmap_unlock_hwlock_irqrestore; in __regmap_init()
777 map->lock = regmap_lock_hwlock_irq; in __regmap_init()
778 map->unlock = regmap_unlock_hwlock_irq; in __regmap_init()
781 map->lock = regmap_lock_hwlock; in __regmap_init()
782 map->unlock = regmap_unlock_hwlock; in __regmap_init()
786 map->lock_arg = map; in __regmap_init()
788 if ((bus && bus->fast_io) || in __regmap_init()
789 config->fast_io) { in __regmap_init()
790 if (config->use_raw_spinlock) { in __regmap_init()
791 raw_spin_lock_init(&map->raw_spinlock); in __regmap_init()
792 map->lock = regmap_lock_raw_spinlock; in __regmap_init()
793 map->unlock = regmap_unlock_raw_spinlock; in __regmap_init()
794 lockdep_set_class_and_name(&map->raw_spinlock, in __regmap_init()
797 spin_lock_init(&map->spinlock); in __regmap_init()
798 map->lock = regmap_lock_spinlock; in __regmap_init()
799 map->unlock = regmap_unlock_spinlock; in __regmap_init()
800 lockdep_set_class_and_name(&map->spinlock, in __regmap_init()
804 mutex_init(&map->mutex); in __regmap_init()
805 map->lock = regmap_lock_mutex; in __regmap_init()
806 map->unlock = regmap_unlock_mutex; in __regmap_init()
807 map->can_sleep = true; in __regmap_init()
808 lockdep_set_class_and_name(&map->mutex, in __regmap_init()
811 map->lock_arg = map; in __regmap_init()
815 * When we write in fast-paths with regmap_bulk_write() don't allocate in __regmap_init()
818 if ((bus && bus->fast_io) || config->fast_io) in __regmap_init()
819 map->alloc_flags = GFP_ATOMIC; in __regmap_init()
821 map->alloc_flags = GFP_KERNEL; in __regmap_init()
823 map->format.reg_bytes = DIV_ROUND_UP(config->reg_bits, 8); in __regmap_init()
824 map->format.pad_bytes = config->pad_bits / 8; in __regmap_init()
825 map->format.val_bytes = DIV_ROUND_UP(config->val_bits, 8); in __regmap_init()
826 map->format.buf_size = DIV_ROUND_UP(config->reg_bits + in __regmap_init()
827 config->val_bits + config->pad_bits, 8); in __regmap_init()
828 map->reg_shift = config->pad_bits % 8; in __regmap_init()
829 if (config->reg_stride) in __regmap_init()
830 map->reg_stride = config->reg_stride; in __regmap_init()
832 map->reg_stride = 1; in __regmap_init()
833 if (is_power_of_2(map->reg_stride)) in __regmap_init()
834 map->reg_stride_order = ilog2(map->reg_stride); in __regmap_init()
836 map->reg_stride_order = -1; in __regmap_init()
837 map->use_single_read = config->use_single_read || !bus || !bus->read; in __regmap_init()
838 map->use_single_write = config->use_single_write || !bus || !bus->write; in __regmap_init()
839 map->can_multi_write = config->can_multi_write && bus && bus->write; in __regmap_init()
840 if (bus) { in __regmap_init()
841 map->max_raw_read = bus->max_raw_read; in __regmap_init()
842 map->max_raw_write = bus->max_raw_write; in __regmap_init()
844 map->dev = dev; in __regmap_init()
845 map->bus = bus; in __regmap_init()
846 map->bus_context = bus_context; in __regmap_init()
847 map->max_register = config->max_register; in __regmap_init()
848 map->wr_table = config->wr_table; in __regmap_init()
849 map->rd_table = config->rd_table; in __regmap_init()
850 map->volatile_table = config->volatile_table; in __regmap_init()
851 map->precious_table = config->precious_table; in __regmap_init()
852 map->wr_noinc_table = config->wr_noinc_table; in __regmap_init()
853 map->rd_noinc_table = config->rd_noinc_table; in __regmap_init()
854 map->writeable_reg = config->writeable_reg; in __regmap_init()
855 map->readable_reg = config->readable_reg; in __regmap_init()
856 map->volatile_reg = config->volatile_reg; in __regmap_init()
857 map->precious_reg = config->precious_reg; in __regmap_init()
858 map->writeable_noinc_reg = config->writeable_noinc_reg; in __regmap_init()
859 map->readable_noinc_reg = config->readable_noinc_reg; in __regmap_init()
860 map->cache_type = config->cache_type; in __regmap_init()
862 spin_lock_init(&map->async_lock); in __regmap_init()
863 INIT_LIST_HEAD(&map->async_list); in __regmap_init()
864 INIT_LIST_HEAD(&map->async_free); in __regmap_init()
865 init_waitqueue_head(&map->async_waitq); in __regmap_init()
867 if (config->read_flag_mask || in __regmap_init()
868 config->write_flag_mask || in __regmap_init()
869 config->zero_flag_mask) { in __regmap_init()
870 map->read_flag_mask = config->read_flag_mask; in __regmap_init()
871 map->write_flag_mask = config->write_flag_mask; in __regmap_init()
872 } else if (bus) { in __regmap_init()
873 map->read_flag_mask = bus->read_flag_mask; in __regmap_init()
876 if (!bus) { in __regmap_init()
877 map->reg_read = config->reg_read; in __regmap_init()
878 map->reg_write = config->reg_write; in __regmap_init()
880 map->defer_caching = false; in __regmap_init()
882 } else if (!bus->read || !bus->write) { in __regmap_init()
883 map->reg_read = _regmap_bus_reg_read; in __regmap_init()
884 map->reg_write = _regmap_bus_reg_write; in __regmap_init()
885 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
887 map->defer_caching = false; in __regmap_init()
890 map->reg_read = _regmap_bus_read; in __regmap_init()
891 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
894 reg_endian = regmap_get_reg_endian(bus, config); in __regmap_init()
895 val_endian = regmap_get_val_endian(dev, bus, config); in __regmap_init()
897 switch (config->reg_bits + map->reg_shift) { in __regmap_init()
899 switch (config->val_bits) { in __regmap_init()
901 map->format.format_write = regmap_format_2_6_write; in __regmap_init()
909 switch (config->val_bits) { in __regmap_init()
911 map->format.format_write = regmap_format_4_12_write; in __regmap_init()
919 switch (config->val_bits) { in __regmap_init()
921 map->format.format_write = regmap_format_7_9_write; in __regmap_init()
924 map->format.format_write = regmap_format_7_17_write; in __regmap_init()
932 switch (config->val_bits) { in __regmap_init()
934 map->format.format_write = regmap_format_10_14_write; in __regmap_init()
942 switch (config->val_bits) { in __regmap_init()
944 map->format.format_write = regmap_format_12_20_write; in __regmap_init()
952 map->format.format_reg = regmap_format_8; in __regmap_init()
958 map->format.format_reg = regmap_format_16_be; in __regmap_init()
961 map->format.format_reg = regmap_format_16_le; in __regmap_init()
964 map->format.format_reg = regmap_format_16_native; in __regmap_init()
974 map->format.format_reg = regmap_format_24; in __regmap_init()
980 map->format.format_reg = regmap_format_32_be; in __regmap_init()
983 map->format.format_reg = regmap_format_32_le; in __regmap_init()
986 map->format.format_reg = regmap_format_32_native; in __regmap_init()
997 map->format.format_reg = regmap_format_64_be; in __regmap_init()
1000 map->format.format_reg = regmap_format_64_le; in __regmap_init()
1003 map->format.format_reg = regmap_format_64_native; in __regmap_init()
1016 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
1018 switch (config->val_bits) { in __regmap_init()
1020 map->format.format_val = regmap_format_8; in __regmap_init()
1021 map->format.parse_val = regmap_parse_8; in __regmap_init()
1022 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
1027 map->format.format_val = regmap_format_16_be; in __regmap_init()
1028 map->format.parse_val = regmap_parse_16_be; in __regmap_init()
1029 map->format.parse_inplace = regmap_parse_16_be_inplace; in __regmap_init()
1032 map->format.format_val = regmap_format_16_le; in __regmap_init()
1033 map->format.parse_val = regmap_parse_16_le; in __regmap_init()
1034 map->format.parse_inplace = regmap_parse_16_le_inplace; in __regmap_init()
1037 map->format.format_val = regmap_format_16_native; in __regmap_init()
1038 map->format.parse_val = regmap_parse_16_native; in __regmap_init()
1047 map->format.format_val = regmap_format_24; in __regmap_init()
1048 map->format.parse_val = regmap_parse_24; in __regmap_init()
1053 map->format.format_val = regmap_format_32_be; in __regmap_init()
1054 map->format.parse_val = regmap_parse_32_be; in __regmap_init()
1055 map->format.parse_inplace = regmap_parse_32_be_inplace; in __regmap_init()
1058 map->format.format_val = regmap_format_32_le; in __regmap_init()
1059 map->format.parse_val = regmap_parse_32_le; in __regmap_init()
1060 map->format.parse_inplace = regmap_parse_32_le_inplace; in __regmap_init()
1063 map->format.format_val = regmap_format_32_native; in __regmap_init()
1064 map->format.parse_val = regmap_parse_32_native; in __regmap_init()
1074 map->format.format_val = regmap_format_64_be; in __regmap_init()
1075 map->format.parse_val = regmap_parse_64_be; in __regmap_init()
1076 map->format.parse_inplace = regmap_parse_64_be_inplace; in __regmap_init()
1079 map->format.format_val = regmap_format_64_le; in __regmap_init()
1080 map->format.parse_val = regmap_parse_64_le; in __regmap_init()
1081 map->format.parse_inplace = regmap_parse_64_le_inplace; in __regmap_init()
1084 map->format.format_val = regmap_format_64_native; in __regmap_init()
1085 map->format.parse_val = regmap_parse_64_native; in __regmap_init()
1094 if (map->format.format_write) { in __regmap_init()
1098 map->use_single_write = true; in __regmap_init()
1101 if (!map->format.format_write && in __regmap_init()
1102 !(map->format.format_reg && map->format.format_val)) in __regmap_init()
1105 map->work_buf = kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1106 if (map->work_buf == NULL) { in __regmap_init()
1107 ret = -ENOMEM; in __regmap_init()
1111 if (map->format.format_write) { in __regmap_init()
1112 map->defer_caching = false; in __regmap_init()
1113 map->reg_write = _regmap_bus_formatted_write; in __regmap_init()
1114 } else if (map->format.format_val) { in __regmap_init()
1115 map->defer_caching = true; in __regmap_init()
1116 map->reg_write = _regmap_bus_raw_write; in __regmap_init()
1121 map->range_tree = RB_ROOT; in __regmap_init()
1122 for (i = 0; i < config->num_ranges; i++) { in __regmap_init()
1123 const struct regmap_range_cfg *range_cfg = &config->ranges[i]; in __regmap_init()
1127 if (range_cfg->range_max < range_cfg->range_min) { in __regmap_init()
1128 dev_err(map->dev, "Invalid range %d: %d < %d\n", i, in __regmap_init()
1129 range_cfg->range_max, range_cfg->range_min); in __regmap_init()
1133 if (range_cfg->range_max > map->max_register) { in __regmap_init()
1134 dev_err(map->dev, "Invalid range %d: %d > %d\n", i, in __regmap_init()
1135 range_cfg->range_max, map->max_register); in __regmap_init()
1139 if (range_cfg->selector_reg > map->max_register) { in __regmap_init()
1140 dev_err(map->dev, in __regmap_init()
1141 "Invalid range %d: selector out of map\n", i); in __regmap_init()
1145 if (range_cfg->window_len == 0) { in __regmap_init()
1146 dev_err(map->dev, "Invalid range %d: window_len 0\n", in __regmap_init()
1151 /* Make sure, that this register range has no selector in __regmap_init()
1153 for (j = 0; j < config->num_ranges; j++) { in __regmap_init()
1154 unsigned int sel_reg = config->ranges[j].selector_reg; in __regmap_init()
1155 unsigned int win_min = config->ranges[j].window_start; in __regmap_init()
1157 config->ranges[j].window_len - 1; in __regmap_init()
1159 /* Allow data window inside its own virtual range */ in __regmap_init()
1163 if (range_cfg->range_min <= sel_reg && in __regmap_init()
1164 sel_reg <= range_cfg->range_max) { in __regmap_init()
1165 dev_err(map->dev, in __regmap_init()
1166 "Range %d: selector for %d in window\n", in __regmap_init()
1171 if (!(win_max < range_cfg->range_min || in __regmap_init()
1172 win_min > range_cfg->range_max)) { in __regmap_init()
1173 dev_err(map->dev, in __regmap_init()
1174 "Range %d: window for %d in window\n", in __regmap_init()
1182 ret = -ENOMEM; in __regmap_init()
1186 new->map = map; in __regmap_init()
1187 new->name = range_cfg->name; in __regmap_init()
1188 new->range_min = range_cfg->range_min; in __regmap_init()
1189 new->range_max = range_cfg->range_max; in __regmap_init()
1190 new->selector_reg = range_cfg->selector_reg; in __regmap_init()
1191 new->selector_mask = range_cfg->selector_mask; in __regmap_init()
1192 new->selector_shift = range_cfg->selector_shift; in __regmap_init()
1193 new->window_start = range_cfg->window_start; in __regmap_init()
1194 new->window_len = range_cfg->window_len; in __regmap_init()
1197 dev_err(map->dev, "Failed to add range %d\n", i); in __regmap_init()
1202 if (map->selector_work_buf == NULL) { in __regmap_init()
1203 map->selector_work_buf = in __regmap_init()
1204 kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1205 if (map->selector_work_buf == NULL) { in __regmap_init()
1206 ret = -ENOMEM; in __regmap_init()
1230 kfree(map->work_buf); in __regmap_init()
1232 if (map->hwlock) in __regmap_init()
1233 hwspin_lock_free(map->hwlock); in __regmap_init()
1235 kfree_const(map->name); in __regmap_init()
1249 const struct regmap_bus *bus, in __devm_regmap_init() argument
1259 return ERR_PTR(-ENOMEM); in __devm_regmap_init()
1261 regmap = __regmap_init(dev, bus, bus_context, config, in __devm_regmap_init()
1277 rm_field->regmap = regmap; in regmap_field_init()
1278 rm_field->reg = reg_field.reg; in regmap_field_init()
1279 rm_field->shift = reg_field.lsb; in regmap_field_init()
1280 rm_field->mask = GENMASK(reg_field.msb, reg_field.lsb); in regmap_field_init()
1281 rm_field->id_size = reg_field.id_size; in regmap_field_init()
1282 rm_field->id_offset = reg_field.id_offset; in regmap_field_init()
1286 * devm_regmap_field_alloc() - Allocate and initialise a register field.
1302 return ERR_PTR(-ENOMEM); in devm_regmap_field_alloc()
1313 * regmap_field_bulk_alloc() - Allocate and initialise a bulk register field.
1320 * The return value will be an -ENOMEM on error or zero for success.
1334 return -ENOMEM; in regmap_field_bulk_alloc()
1346 * devm_regmap_field_bulk_alloc() - Allocate and initialise a bulk register
1355 * The return value will be an -ENOMEM on error or zero for success.
1370 return -ENOMEM; in devm_regmap_field_bulk_alloc()
1382 * regmap_field_bulk_free() - Free register field allocated using
1394 * devm_regmap_field_bulk_free() - Free a bulk register field allocated using
1402 * will be freed as per device-driver life-cycle.
1412 * devm_regmap_field_free() - Free a register field allocated using
1420 * will be freed as per device-driver life-cyle.
1430 * regmap_field_alloc() - Allocate and initialise a register field.
1445 return ERR_PTR(-ENOMEM); in regmap_field_alloc()
1454 * regmap_field_free() - Free register field allocated using
1466 * regmap_reinit_cache() - Reinitialise the current register cache
1486 map->max_register = config->max_register; in regmap_reinit_cache()
1487 map->writeable_reg = config->writeable_reg; in regmap_reinit_cache()
1488 map->readable_reg = config->readable_reg; in regmap_reinit_cache()
1489 map->volatile_reg = config->volatile_reg; in regmap_reinit_cache()
1490 map->precious_reg = config->precious_reg; in regmap_reinit_cache()
1491 map->writeable_noinc_reg = config->writeable_noinc_reg; in regmap_reinit_cache()
1492 map->readable_noinc_reg = config->readable_noinc_reg; in regmap_reinit_cache()
1493 map->cache_type = config->cache_type; in regmap_reinit_cache()
1501 map->cache_bypass = false; in regmap_reinit_cache()
1502 map->cache_only = false; in regmap_reinit_cache()
1509 * regmap_exit() - Free a previously allocated register map
1520 if (map->bus && map->bus->free_context) in regmap_exit()
1521 map->bus->free_context(map->bus_context); in regmap_exit()
1522 kfree(map->work_buf); in regmap_exit()
1523 while (!list_empty(&map->async_free)) { in regmap_exit()
1524 async = list_first_entry_or_null(&map->async_free, in regmap_exit()
1527 list_del(&async->list); in regmap_exit()
1528 kfree(async->work_buf); in regmap_exit()
1531 if (map->hwlock) in regmap_exit()
1532 hwspin_lock_free(map->hwlock); in regmap_exit()
1533 if (map->lock == regmap_lock_mutex) in regmap_exit()
1534 mutex_destroy(&map->mutex); in regmap_exit()
1535 kfree_const(map->name); in regmap_exit()
1536 kfree(map->patch); in regmap_exit()
1537 if (map->bus && map->bus->free_on_exit) in regmap_exit()
1538 kfree(map->bus); in regmap_exit()
1553 return !strcmp((*r)->name, data); in dev_get_regmap_match()
1559 * dev_get_regmap() - Obtain the regmap (if any) for a device
1582 * regmap_get_device() - Obtain the device from a regmap
1590 return map->dev; in regmap_get_device()
1595 struct regmap_range_node *range, in _regmap_select_page() argument
1604 win_offset = (*reg - range->range_min) % range->window_len; in _regmap_select_page()
1605 win_page = (*reg - range->range_min) / range->window_len; in _regmap_select_page()
1608 /* Bulk write shouldn't cross range boundary */ in _regmap_select_page()
1609 if (*reg + val_num - 1 > range->range_max) in _regmap_select_page()
1610 return -EINVAL; in _regmap_select_page()
1613 if (val_num > range->window_len - win_offset) in _regmap_select_page()
1614 return -EINVAL; in _regmap_select_page()
1621 range->window_start + win_offset != range->selector_reg) { in _regmap_select_page()
1623 orig_work_buf = map->work_buf; in _regmap_select_page()
1624 map->work_buf = map->selector_work_buf; in _regmap_select_page()
1626 ret = _regmap_update_bits(map, range->selector_reg, in _regmap_select_page()
1627 range->selector_mask, in _regmap_select_page()
1628 win_page << range->selector_shift, in _regmap_select_page()
1631 map->work_buf = orig_work_buf; in _regmap_select_page()
1637 *reg = range->window_start + win_offset; in _regmap_select_page()
1648 if (!mask || !map->work_buf) in regmap_set_work_buf_flag_mask()
1651 buf = map->work_buf; in regmap_set_work_buf_flag_mask()
1660 struct regmap_range_node *range; in _regmap_raw_write_impl() local
1662 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_raw_write_impl()
1663 map->format.pad_bytes; in _regmap_raw_write_impl()
1665 int ret = -ENOTSUPP; in _regmap_raw_write_impl()
1669 WARN_ON(!map->bus); in _regmap_raw_write_impl()
1671 /* Check for unwritable or noinc registers in range in _regmap_raw_write_impl()
1675 for (i = 0; i < val_len / map->format.val_bytes; i++) { in _regmap_raw_write_impl()
1680 return -EINVAL; in _regmap_raw_write_impl()
1684 if (!map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1686 int val_bytes = map->format.val_bytes; in _regmap_raw_write_impl()
1688 ival = map->format.parse_val(val + (i * val_bytes)); in _regmap_raw_write_impl()
1693 dev_err(map->dev, in _regmap_raw_write_impl()
1699 if (map->cache_only) { in _regmap_raw_write_impl()
1700 map->cache_dirty = true; in _regmap_raw_write_impl()
1705 range = _regmap_range_lookup(map, reg); in _regmap_raw_write_impl()
1706 if (range) { in _regmap_raw_write_impl()
1707 int val_num = val_len / map->format.val_bytes; in _regmap_raw_write_impl()
1708 int win_offset = (reg - range->range_min) % range->window_len; in _regmap_raw_write_impl()
1709 int win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1713 dev_dbg(map->dev, "Writing window %d/%zu\n", in _regmap_raw_write_impl()
1714 win_residue, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1717 map->format.val_bytes, noinc); in _regmap_raw_write_impl()
1722 val_num -= win_residue; in _regmap_raw_write_impl()
1723 val += win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1724 val_len -= win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1726 win_offset = (reg - range->range_min) % in _regmap_raw_write_impl()
1727 range->window_len; in _regmap_raw_write_impl()
1728 win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1731 ret = _regmap_select_page(map, ®, range, noinc ? 1 : val_num); in _regmap_raw_write_impl()
1736 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_write_impl()
1737 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_write_impl()
1738 map->write_flag_mask); in _regmap_raw_write_impl()
1745 if (val != work_val && val_len == map->format.val_bytes) { in _regmap_raw_write_impl()
1746 memcpy(work_val, val, map->format.val_bytes); in _regmap_raw_write_impl()
1750 if (map->async && map->bus->async_write) { in _regmap_raw_write_impl()
1755 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1756 async = list_first_entry_or_null(&map->async_free, in _regmap_raw_write_impl()
1760 list_del(&async->list); in _regmap_raw_write_impl()
1761 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1764 async = map->bus->async_alloc(); in _regmap_raw_write_impl()
1766 return -ENOMEM; in _regmap_raw_write_impl()
1768 async->work_buf = kzalloc(map->format.buf_size, in _regmap_raw_write_impl()
1770 if (!async->work_buf) { in _regmap_raw_write_impl()
1772 return -ENOMEM; in _regmap_raw_write_impl()
1776 async->map = map; in _regmap_raw_write_impl()
1779 memcpy(async->work_buf, map->work_buf, map->format.pad_bytes + in _regmap_raw_write_impl()
1780 map->format.reg_bytes + map->format.val_bytes); in _regmap_raw_write_impl()
1782 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1783 list_add_tail(&async->list, &map->async_list); in _regmap_raw_write_impl()
1784 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1787 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1788 async->work_buf, in _regmap_raw_write_impl()
1789 map->format.reg_bytes + in _regmap_raw_write_impl()
1790 map->format.pad_bytes, in _regmap_raw_write_impl()
1793 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1794 async->work_buf, in _regmap_raw_write_impl()
1795 map->format.reg_bytes + in _regmap_raw_write_impl()
1796 map->format.pad_bytes + in _regmap_raw_write_impl()
1800 dev_err(map->dev, "Failed to schedule write: %d\n", in _regmap_raw_write_impl()
1803 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1804 list_move(&async->list, &map->async_free); in _regmap_raw_write_impl()
1805 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1811 trace_regmap_hw_write_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1818 ret = map->bus->write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1819 map->format.reg_bytes + in _regmap_raw_write_impl()
1820 map->format.pad_bytes + in _regmap_raw_write_impl()
1822 else if (map->bus->gather_write) in _regmap_raw_write_impl()
1823 ret = map->bus->gather_write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1824 map->format.reg_bytes + in _regmap_raw_write_impl()
1825 map->format.pad_bytes, in _regmap_raw_write_impl()
1828 ret = -ENOTSUPP; in _regmap_raw_write_impl()
1831 if (ret == -ENOTSUPP) { in _regmap_raw_write_impl()
1832 len = map->format.reg_bytes + map->format.pad_bytes + val_len; in _regmap_raw_write_impl()
1835 return -ENOMEM; in _regmap_raw_write_impl()
1837 memcpy(buf, map->work_buf, map->format.reg_bytes); in _regmap_raw_write_impl()
1838 memcpy(buf + map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_write_impl()
1840 ret = map->bus->write(map->bus_context, buf, len); in _regmap_raw_write_impl()
1843 } else if (ret != 0 && !map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1845 * thus call map->cache_ops->drop() directly in _regmap_raw_write_impl()
1847 if (map->cache_ops && map->cache_ops->drop) in _regmap_raw_write_impl()
1848 map->cache_ops->drop(map, reg, reg + 1); in _regmap_raw_write_impl()
1851 trace_regmap_hw_write_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1857 * regmap_can_raw_write - Test if regmap_raw_write() is supported
1863 return map->bus && map->bus->write && map->format.format_val && in regmap_can_raw_write()
1864 map->format.format_reg; in regmap_can_raw_write()
1869 * regmap_get_raw_read_max - Get the maximum size we can read
1875 return map->max_raw_read; in regmap_get_raw_read_max()
1880 * regmap_get_raw_write_max - Get the maximum size we can read
1886 return map->max_raw_write; in regmap_get_raw_write_max()
1894 struct regmap_range_node *range; in _regmap_bus_formatted_write() local
1897 WARN_ON(!map->bus || !map->format.format_write); in _regmap_bus_formatted_write()
1899 range = _regmap_range_lookup(map, reg); in _regmap_bus_formatted_write()
1900 if (range) { in _regmap_bus_formatted_write()
1901 ret = _regmap_select_page(map, ®, range, 1); in _regmap_bus_formatted_write()
1906 map->format.format_write(map, reg, val); in _regmap_bus_formatted_write()
1910 ret = map->bus->write(map->bus_context, map->work_buf, in _regmap_bus_formatted_write()
1911 map->format.buf_size); in _regmap_bus_formatted_write()
1923 return map->bus->reg_write(map->bus_context, reg, val); in _regmap_bus_reg_write()
1931 WARN_ON(!map->bus || !map->format.format_val); in _regmap_bus_raw_write()
1933 map->format.format_val(map->work_buf + map->format.reg_bytes in _regmap_bus_raw_write()
1934 + map->format.pad_bytes, val, 0); in _regmap_bus_raw_write()
1936 map->work_buf + in _regmap_bus_raw_write()
1937 map->format.reg_bytes + in _regmap_bus_raw_write()
1938 map->format.pad_bytes, in _regmap_bus_raw_write()
1939 map->format.val_bytes, in _regmap_bus_raw_write()
1945 return (map->bus) ? map : map->bus_context; in _regmap_map_get_context()
1955 return -EIO; in _regmap_write()
1957 if (!map->cache_bypass && !map->defer_caching) { in _regmap_write()
1961 if (map->cache_only) { in _regmap_write()
1962 map->cache_dirty = true; in _regmap_write()
1967 ret = map->reg_write(context, reg, val); in _regmap_write()
1970 dev_info(map->dev, "%x <= %x\n", reg, val); in _regmap_write()
1979 * regmap_write() - Write a value to a single register
1992 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write()
1993 return -EINVAL; in regmap_write()
1995 map->lock(map->lock_arg); in regmap_write()
1999 map->unlock(map->lock_arg); in regmap_write()
2006 * regmap_write_async() - Write a value to a single register asynchronously
2019 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write_async()
2020 return -EINVAL; in regmap_write_async()
2022 map->lock(map->lock_arg); in regmap_write_async()
2024 map->async = true; in regmap_write_async()
2028 map->async = false; in regmap_write_async()
2030 map->unlock(map->lock_arg); in regmap_write_async()
2039 size_t val_bytes = map->format.val_bytes; in _regmap_raw_write()
2046 return -EINVAL; in _regmap_raw_write()
2048 if (map->use_single_write) in _regmap_raw_write()
2050 else if (map->max_raw_write && val_len > map->max_raw_write) in _regmap_raw_write()
2051 chunk_regs = map->max_raw_write / val_bytes; in _regmap_raw_write()
2064 val_len -= chunk_bytes; in _regmap_raw_write()
2075 * regmap_raw_write() - Write raw values to one or more registers
2096 return -EINVAL; in regmap_raw_write()
2097 if (val_len % map->format.val_bytes) in regmap_raw_write()
2098 return -EINVAL; in regmap_raw_write()
2100 map->lock(map->lock_arg); in regmap_raw_write()
2104 map->unlock(map->lock_arg); in regmap_raw_write()
2119 * The regmap API usually assumes that bulk bus write operations will write a
2120 * range of registers. Some devices have certain registers for which a write
2137 if (!map->bus) in regmap_noinc_write()
2138 return -EINVAL; in regmap_noinc_write()
2139 if (!map->bus->write) in regmap_noinc_write()
2140 return -ENOTSUPP; in regmap_noinc_write()
2141 if (val_len % map->format.val_bytes) in regmap_noinc_write()
2142 return -EINVAL; in regmap_noinc_write()
2143 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_write()
2144 return -EINVAL; in regmap_noinc_write()
2146 return -EINVAL; in regmap_noinc_write()
2148 map->lock(map->lock_arg); in regmap_noinc_write()
2151 ret = -EINVAL; in regmap_noinc_write()
2156 if (map->max_raw_write && map->max_raw_write < val_len) in regmap_noinc_write()
2157 write_len = map->max_raw_write; in regmap_noinc_write()
2164 val_len -= write_len; in regmap_noinc_write()
2168 map->unlock(map->lock_arg); in regmap_noinc_write()
2174 * regmap_field_update_bits_base() - Perform a read/modify/write cycle a
2194 mask = (mask << field->shift) & field->mask; in regmap_field_update_bits_base()
2196 return regmap_update_bits_base(field->regmap, field->reg, in regmap_field_update_bits_base()
2197 mask, val << field->shift, in regmap_field_update_bits_base()
2203 * regmap_fields_update_bits_base() - Perform a read/modify/write cycle a
2221 if (id >= field->id_size) in regmap_fields_update_bits_base()
2222 return -EINVAL; in regmap_fields_update_bits_base()
2224 mask = (mask << field->shift) & field->mask; in regmap_fields_update_bits_base()
2226 return regmap_update_bits_base(field->regmap, in regmap_fields_update_bits_base()
2227 field->reg + (field->id_offset * id), in regmap_fields_update_bits_base()
2228 mask, val << field->shift, in regmap_fields_update_bits_base()
2234 * regmap_bulk_write() - Write multiple registers to the device
2251 size_t val_bytes = map->format.val_bytes; in regmap_bulk_write()
2253 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_write()
2254 return -EINVAL; in regmap_bulk_write()
2260 if (!map->bus || !map->format.parse_inplace) { in regmap_bulk_write()
2261 map->lock(map->lock_arg); in regmap_bulk_write()
2281 ret = -EINVAL; in regmap_bulk_write()
2292 map->unlock(map->lock_arg); in regmap_bulk_write()
2296 wval = kmemdup(val, val_count * val_bytes, map->alloc_flags); in regmap_bulk_write()
2298 return -ENOMEM; in regmap_bulk_write()
2301 map->format.parse_inplace(wval + i); in regmap_bulk_write()
2326 size_t val_bytes = map->format.val_bytes; in _regmap_raw_multi_reg_write()
2327 size_t reg_bytes = map->format.reg_bytes; in _regmap_raw_multi_reg_write()
2328 size_t pad_bytes = map->format.pad_bytes; in _regmap_raw_multi_reg_write()
2333 return -EINVAL; in _regmap_raw_multi_reg_write()
2337 return -ENOMEM; in _regmap_raw_multi_reg_write()
2347 map->format.format_reg(u8, reg, map->reg_shift); in _regmap_raw_multi_reg_write()
2349 map->format.format_val(u8, val, 0); in _regmap_raw_multi_reg_write()
2353 *u8 |= map->write_flag_mask; in _regmap_raw_multi_reg_write()
2355 ret = map->bus->write(map->bus_context, buf, len); in _regmap_raw_multi_reg_write()
2368 struct regmap_range_node *range) in _regmap_register_page() argument
2370 unsigned int win_page = (reg - range->range_min) / range->window_len; in _regmap_register_page()
2393 struct regmap_range_node *range; in _regmap_range_multi_paged_reg_write() local
2395 range = _regmap_range_lookup(map, reg); in _regmap_range_multi_paged_reg_write()
2396 if (range) { in _regmap_range_multi_paged_reg_write()
2398 range); in _regmap_range_multi_paged_reg_write()
2429 if (map->can_sleep) in _regmap_range_multi_paged_reg_write()
2441 range, 1); in _regmap_range_multi_paged_reg_write()
2463 if (!map->can_multi_write) { in _regmap_multi_reg_write()
2470 if (map->can_sleep) in _regmap_multi_reg_write()
2479 if (!map->format.parse_inplace) in _regmap_multi_reg_write()
2480 return -EINVAL; in _regmap_multi_reg_write()
2482 if (map->writeable_reg) in _regmap_multi_reg_write()
2485 if (!map->writeable_reg(map->dev, reg)) in _regmap_multi_reg_write()
2486 return -EINVAL; in _regmap_multi_reg_write()
2487 if (!IS_ALIGNED(reg, map->reg_stride)) in _regmap_multi_reg_write()
2488 return -EINVAL; in _regmap_multi_reg_write()
2491 if (!map->cache_bypass) { in _regmap_multi_reg_write()
2497 dev_err(map->dev, in _regmap_multi_reg_write()
2503 if (map->cache_only) { in _regmap_multi_reg_write()
2504 map->cache_dirty = true; in _regmap_multi_reg_write()
2509 WARN_ON(!map->bus); in _regmap_multi_reg_write()
2513 struct regmap_range_node *range; in _regmap_multi_reg_write() local
2518 range = _regmap_range_lookup(map, reg); in _regmap_multi_reg_write()
2519 if (range || regs[i].delay_us) { in _regmap_multi_reg_write()
2524 return -ENOMEM; in _regmap_multi_reg_write()
2536 * regmap_multi_reg_write() - Write multiple registers to the device
2543 * pairs are supplied in any order, possibly not all in a single range.
2546 * target bus as R,V1,V2,V3,..,Vn where successively higher registers are
2548 * the data as R1,V1,R2,V2,..,Rn,Vn on the target bus. The target device
2559 map->lock(map->lock_arg); in regmap_multi_reg_write()
2563 map->unlock(map->lock_arg); in regmap_multi_reg_write()
2570 * regmap_multi_reg_write_bypassed() - Write multiple registers to the
2594 map->lock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2596 bypass = map->cache_bypass; in regmap_multi_reg_write_bypassed()
2597 map->cache_bypass = true; in regmap_multi_reg_write_bypassed()
2601 map->cache_bypass = bypass; in regmap_multi_reg_write_bypassed()
2603 map->unlock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2610 * regmap_raw_write_async() - Write raw values to one or more registers
2623 * If supported by the underlying bus the write will be scheduled
2636 if (val_len % map->format.val_bytes) in regmap_raw_write_async()
2637 return -EINVAL; in regmap_raw_write_async()
2638 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_write_async()
2639 return -EINVAL; in regmap_raw_write_async()
2641 map->lock(map->lock_arg); in regmap_raw_write_async()
2643 map->async = true; in regmap_raw_write_async()
2647 map->async = false; in regmap_raw_write_async()
2649 map->unlock(map->lock_arg); in regmap_raw_write_async()
2658 struct regmap_range_node *range; in _regmap_raw_read() local
2661 WARN_ON(!map->bus); in _regmap_raw_read()
2663 if (!map->bus || !map->bus->read) in _regmap_raw_read()
2664 return -EINVAL; in _regmap_raw_read()
2666 range = _regmap_range_lookup(map, reg); in _regmap_raw_read()
2667 if (range) { in _regmap_raw_read()
2668 ret = _regmap_select_page(map, ®, range, in _regmap_raw_read()
2669 noinc ? 1 : val_len / map->format.val_bytes); in _regmap_raw_read()
2674 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_read()
2675 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_read()
2676 map->read_flag_mask); in _regmap_raw_read()
2677 trace_regmap_hw_read_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2679 ret = map->bus->read(map->bus_context, map->work_buf, in _regmap_raw_read()
2680 map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_read()
2683 trace_regmap_hw_read_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2693 return map->bus->reg_read(map->bus_context, reg, val); in _regmap_bus_reg_read()
2701 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_bus_read()
2702 map->format.pad_bytes; in _regmap_bus_read()
2704 if (!map->format.parse_val) in _regmap_bus_read()
2705 return -EINVAL; in _regmap_bus_read()
2707 ret = _regmap_raw_read(map, reg, work_val, map->format.val_bytes, false); in _regmap_bus_read()
2709 *val = map->format.parse_val(work_val); in _regmap_bus_read()
2720 if (!map->cache_bypass) { in _regmap_read()
2726 if (map->cache_only) in _regmap_read()
2727 return -EBUSY; in _regmap_read()
2730 return -EIO; in _regmap_read()
2732 ret = map->reg_read(context, reg, val); in _regmap_read()
2735 dev_info(map->dev, "%x => %x\n", reg, *val); in _regmap_read()
2739 if (!map->cache_bypass) in _regmap_read()
2747 * regmap_read() - Read a value from a single register
2760 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_read()
2761 return -EINVAL; in regmap_read()
2763 map->lock(map->lock_arg); in regmap_read()
2767 map->unlock(map->lock_arg); in regmap_read()
2774 * regmap_raw_read() - Read raw data from the device
2787 size_t val_bytes = map->format.val_bytes; in regmap_raw_read()
2792 if (!map->bus) in regmap_raw_read()
2793 return -EINVAL; in regmap_raw_read()
2794 if (val_len % map->format.val_bytes) in regmap_raw_read()
2795 return -EINVAL; in regmap_raw_read()
2796 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_read()
2797 return -EINVAL; in regmap_raw_read()
2799 return -EINVAL; in regmap_raw_read()
2801 map->lock(map->lock_arg); in regmap_raw_read()
2803 if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || in regmap_raw_read()
2804 map->cache_type == REGCACHE_NONE) { in regmap_raw_read()
2808 if (!map->bus->read) { in regmap_raw_read()
2809 ret = -ENOTSUPP; in regmap_raw_read()
2813 if (map->use_single_read) in regmap_raw_read()
2815 else if (map->max_raw_read && val_len > map->max_raw_read) in regmap_raw_read()
2816 chunk_regs = map->max_raw_read / val_bytes; in regmap_raw_read()
2829 val_len -= chunk_bytes; in regmap_raw_read()
2848 map->format.format_val(val + (i * val_bytes), v, 0); in regmap_raw_read()
2853 map->unlock(map->lock_arg); in regmap_raw_read()
2868 * The regmap API usually assumes that bulk bus read operations will read a
2869 * range of registers. Some devices have certain registers for which a read
2886 if (!map->bus) in regmap_noinc_read()
2887 return -EINVAL; in regmap_noinc_read()
2888 if (!map->bus->read) in regmap_noinc_read()
2889 return -ENOTSUPP; in regmap_noinc_read()
2890 if (val_len % map->format.val_bytes) in regmap_noinc_read()
2891 return -EINVAL; in regmap_noinc_read()
2892 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_read()
2893 return -EINVAL; in regmap_noinc_read()
2895 return -EINVAL; in regmap_noinc_read()
2897 map->lock(map->lock_arg); in regmap_noinc_read()
2900 ret = -EINVAL; in regmap_noinc_read()
2905 if (map->max_raw_read && map->max_raw_read < val_len) in regmap_noinc_read()
2906 read_len = map->max_raw_read; in regmap_noinc_read()
2913 val_len -= read_len; in regmap_noinc_read()
2917 map->unlock(map->lock_arg); in regmap_noinc_read()
2935 ret = regmap_read(field->regmap, field->reg, ®_val); in regmap_field_read()
2939 reg_val &= field->mask; in regmap_field_read()
2940 reg_val >>= field->shift; in regmap_field_read()
2948 * regmap_fields_read() - Read a value to a single register field with port ID
2963 if (id >= field->id_size) in regmap_fields_read()
2964 return -EINVAL; in regmap_fields_read()
2966 ret = regmap_read(field->regmap, in regmap_fields_read()
2967 field->reg + (field->id_offset * id), in regmap_fields_read()
2972 reg_val &= field->mask; in regmap_fields_read()
2973 reg_val >>= field->shift; in regmap_fields_read()
2981 * regmap_bulk_read() - Read multiple registers from the device
2995 size_t val_bytes = map->format.val_bytes; in regmap_bulk_read()
2998 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_read()
2999 return -EINVAL; in regmap_bulk_read()
3001 return -EINVAL; in regmap_bulk_read()
3003 if (map->bus && map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) { in regmap_bulk_read()
3009 map->format.parse_inplace(val + i); in regmap_bulk_read()
3018 map->lock(map->lock_arg); in regmap_bulk_read()
3028 switch (map->format.val_bytes) { in regmap_bulk_read()
3044 ret = -EINVAL; in regmap_bulk_read()
3050 map->unlock(map->lock_arg); in regmap_bulk_read()
3067 if (regmap_volatile(map, reg) && map->reg_update_bits) { in _regmap_update_bits()
3068 ret = map->reg_update_bits(map->bus_context, reg, mask, val); in _regmap_update_bits()
3090 * regmap_update_bits_base() - Perform a read/modify/write cycle on a register
3117 map->lock(map->lock_arg); in regmap_update_bits_base()
3119 map->async = async; in regmap_update_bits_base()
3123 map->async = false; in regmap_update_bits_base()
3125 map->unlock(map->lock_arg); in regmap_update_bits_base()
3132 * regmap_test_bits() - Check if all specified bits are set in a register.
3156 struct regmap *map = async->map; in regmap_async_complete_cb()
3161 spin_lock(&map->async_lock); in regmap_async_complete_cb()
3162 list_move(&async->list, &map->async_free); in regmap_async_complete_cb()
3163 wake = list_empty(&map->async_list); in regmap_async_complete_cb()
3166 map->async_ret = ret; in regmap_async_complete_cb()
3168 spin_unlock(&map->async_lock); in regmap_async_complete_cb()
3171 wake_up(&map->async_waitq); in regmap_async_complete_cb()
3180 spin_lock_irqsave(&map->async_lock, flags); in regmap_async_is_done()
3181 ret = list_empty(&map->async_list); in regmap_async_is_done()
3182 spin_unlock_irqrestore(&map->async_lock, flags); in regmap_async_is_done()
3188 * regmap_async_complete - Ensure all asynchronous I/O has completed.
3201 if (!map->bus || !map->bus->async_write) in regmap_async_complete()
3206 wait_event(map->async_waitq, regmap_async_is_done(map)); in regmap_async_complete()
3208 spin_lock_irqsave(&map->async_lock, flags); in regmap_async_complete()
3209 ret = map->async_ret; in regmap_async_complete()
3210 map->async_ret = 0; in regmap_async_complete()
3211 spin_unlock_irqrestore(&map->async_lock, flags); in regmap_async_complete()
3220 * regmap_register_patch - Register and apply register updates to be applied
3247 p = krealloc(map->patch, in regmap_register_patch()
3248 sizeof(struct reg_sequence) * (map->patch_regs + num_regs), in regmap_register_patch()
3251 memcpy(p + map->patch_regs, regs, num_regs * sizeof(*regs)); in regmap_register_patch()
3252 map->patch = p; in regmap_register_patch()
3253 map->patch_regs += num_regs; in regmap_register_patch()
3255 return -ENOMEM; in regmap_register_patch()
3258 map->lock(map->lock_arg); in regmap_register_patch()
3260 bypass = map->cache_bypass; in regmap_register_patch()
3262 map->cache_bypass = true; in regmap_register_patch()
3263 map->async = true; in regmap_register_patch()
3267 map->async = false; in regmap_register_patch()
3268 map->cache_bypass = bypass; in regmap_register_patch()
3270 map->unlock(map->lock_arg); in regmap_register_patch()
3279 * regmap_get_val_bytes() - Report the size of a register value
3288 if (map->format.format_write) in regmap_get_val_bytes()
3289 return -EINVAL; in regmap_get_val_bytes()
3291 return map->format.val_bytes; in regmap_get_val_bytes()
3296 * regmap_get_max_register() - Report the max register value
3305 return map->max_register ? map->max_register : -EINVAL; in regmap_get_max_register()
3310 * regmap_get_reg_stride() - Report the register address stride
3319 return map->reg_stride; in regmap_get_reg_stride()
3326 if (!map->format.parse_val) in regmap_parse_val()
3327 return -EINVAL; in regmap_parse_val()
3329 *val = map->format.parse_val(buf); in regmap_parse_val()