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_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()
412 hwspin_lock_timeout_irqsave(map->hwlock, UINT_MAX, in regmap_lock_hwlock_irqsave()
413 &map->spinlock_flags); in regmap_lock_hwlock_irqsave()
420 hwspin_unlock(map->hwlock); in regmap_unlock_hwlock()
427 hwspin_unlock_irq(map->hwlock); in regmap_unlock_hwlock_irq()
434 hwspin_unlock_irqrestore(map->hwlock, &map->spinlock_flags); in regmap_unlock_hwlock_irqrestore()
445 mutex_lock(&map->mutex); in regmap_lock_mutex()
451 mutex_unlock(&map->mutex); in regmap_unlock_mutex()
455 __acquires(&map->spinlock) in regmap_lock_spinlock()
460 spin_lock_irqsave(&map->spinlock, flags); in regmap_lock_spinlock()
461 map->spinlock_flags = flags; in regmap_lock_spinlock()
465 __releases(&map->spinlock) in regmap_unlock_spinlock()
468 spin_unlock_irqrestore(&map->spinlock, map->spinlock_flags); in regmap_unlock_spinlock()
472 __acquires(&map->raw_spinlock) in regmap_lock_raw_spinlock()
477 raw_spin_lock_irqsave(&map->raw_spinlock, flags); in regmap_lock_raw_spinlock()
478 map->raw_spinlock_flags = flags; in regmap_lock_raw_spinlock()
482 __releases(&map->raw_spinlock) in regmap_unlock_raw_spinlock()
485 raw_spin_unlock_irqrestore(&map->raw_spinlock, map->raw_spinlock_flags); in regmap_unlock_raw_spinlock()
500 struct rb_root *root = &map->range_tree; in _regmap_range_add()
501 struct rb_node **new = &(root->rb_node), *parent = NULL; in _regmap_range_add()
508 if (data->range_max < this->range_min) in _regmap_range_add()
509 new = &((*new)->rb_left); in _regmap_range_add()
510 else if (data->range_min > this->range_max) in _regmap_range_add()
511 new = &((*new)->rb_right); in _regmap_range_add()
516 rb_link_node(&data->node, parent, new); in _regmap_range_add()
517 rb_insert_color(&data->node, root); in _regmap_range_add()
525 struct rb_node *node = map->range_tree.rb_node; in _regmap_range_lookup()
531 if (reg < this->range_min) in _regmap_range_lookup()
532 node = node->rb_left; in _regmap_range_lookup()
533 else if (reg > this->range_max) in _regmap_range_lookup()
534 node = node->rb_right; in _regmap_range_lookup()
547 next = rb_first(&map->range_tree); in regmap_range_exit()
550 next = rb_next(&range_node->node); in regmap_range_exit()
551 rb_erase(&range_node->node, &map->range_tree); in regmap_range_exit()
555 kfree(map->selector_work_buf); in regmap_range_exit()
560 if (config->name) { in regmap_set_name()
561 const char *name = kstrdup_const(config->name, GFP_KERNEL); in regmap_set_name()
564 return -ENOMEM; in regmap_set_name()
566 kfree_const(map->name); in regmap_set_name()
567 map->name = name; in regmap_set_name()
579 map->dev = dev; in regmap_attach_dev()
592 return -ENOMEM; in regmap_attach_dev()
609 dev_get_regmap_match, (void *)map->name); in regmap_detach_dev()
612 static enum regmap_endian regmap_get_reg_endian(const struct regmap_bus *bus, in regmap_get_reg_endian() argument
618 endian = config->reg_format_endian; in regmap_get_reg_endian()
620 /* If the regmap config specified a non-default value, use that */ in regmap_get_reg_endian()
624 /* Retrieve the endianness specification from the bus config */ in regmap_get_reg_endian()
625 if (bus && bus->reg_format_endian_default) in regmap_get_reg_endian()
626 endian = bus->reg_format_endian_default; in regmap_get_reg_endian()
628 /* If the bus specified a non-default value, use that */ in regmap_get_reg_endian()
637 const struct regmap_bus *bus, in regmap_get_val_endian() argument
644 endian = config->val_format_endian; in regmap_get_val_endian()
646 /* If the regmap config specified a non-default value, use that */ in regmap_get_val_endian()
651 if (fwnode_property_read_bool(fwnode, "big-endian")) in regmap_get_val_endian()
653 else if (fwnode_property_read_bool(fwnode, "little-endian")) in regmap_get_val_endian()
655 else if (fwnode_property_read_bool(fwnode, "native-endian")) in regmap_get_val_endian()
662 /* Retrieve the endianness specification from the bus config */ in regmap_get_val_endian()
663 if (bus && bus->val_format_endian_default) in regmap_get_val_endian()
664 endian = bus->val_format_endian_default; in regmap_get_val_endian()
666 /* If the bus specified a non-default value, use that */ in regmap_get_val_endian()
676 const struct regmap_bus *bus, in __regmap_init() argument
683 int ret = -EINVAL; in __regmap_init()
692 ret = -ENOMEM; in __regmap_init()
700 ret = -EINVAL; /* Later error paths rely on this */ in __regmap_init()
702 if (config->disable_locking) { in __regmap_init()
703 map->lock = map->unlock = regmap_lock_unlock_none; in __regmap_init()
704 map->can_sleep = config->can_sleep; in __regmap_init()
706 } else if (config->lock && config->unlock) { in __regmap_init()
707 map->lock = config->lock; in __regmap_init()
708 map->unlock = config->unlock; in __regmap_init()
709 map->lock_arg = config->lock_arg; in __regmap_init()
710 map->can_sleep = config->can_sleep; in __regmap_init()
711 } else if (config->use_hwlock) { in __regmap_init()
712 map->hwlock = hwspin_lock_request_specific(config->hwlock_id); in __regmap_init()
713 if (!map->hwlock) { in __regmap_init()
714 ret = -ENXIO; in __regmap_init()
718 switch (config->hwlock_mode) { in __regmap_init()
720 map->lock = regmap_lock_hwlock_irqsave; in __regmap_init()
721 map->unlock = regmap_unlock_hwlock_irqrestore; in __regmap_init()
724 map->lock = regmap_lock_hwlock_irq; in __regmap_init()
725 map->unlock = regmap_unlock_hwlock_irq; in __regmap_init()
728 map->lock = regmap_lock_hwlock; in __regmap_init()
729 map->unlock = regmap_unlock_hwlock; in __regmap_init()
733 map->lock_arg = map; in __regmap_init()
735 if ((bus && bus->fast_io) || in __regmap_init()
736 config->fast_io) { in __regmap_init()
737 if (config->use_raw_spinlock) { in __regmap_init()
738 raw_spin_lock_init(&map->raw_spinlock); in __regmap_init()
739 map->lock = regmap_lock_raw_spinlock; in __regmap_init()
740 map->unlock = regmap_unlock_raw_spinlock; in __regmap_init()
741 lockdep_set_class_and_name(&map->raw_spinlock, in __regmap_init()
744 spin_lock_init(&map->spinlock); in __regmap_init()
745 map->lock = regmap_lock_spinlock; in __regmap_init()
746 map->unlock = regmap_unlock_spinlock; in __regmap_init()
747 lockdep_set_class_and_name(&map->spinlock, in __regmap_init()
751 mutex_init(&map->mutex); in __regmap_init()
752 map->lock = regmap_lock_mutex; in __regmap_init()
753 map->unlock = regmap_unlock_mutex; in __regmap_init()
754 map->can_sleep = true; in __regmap_init()
755 lockdep_set_class_and_name(&map->mutex, in __regmap_init()
758 map->lock_arg = map; in __regmap_init()
759 map->lock_key = lock_key; in __regmap_init()
763 * When we write in fast-paths with regmap_bulk_write() don't allocate in __regmap_init()
766 if ((bus && bus->fast_io) || config->fast_io) in __regmap_init()
767 map->alloc_flags = GFP_ATOMIC; in __regmap_init()
769 map->alloc_flags = GFP_KERNEL; in __regmap_init()
771 map->reg_base = config->reg_base; in __regmap_init()
772 map->reg_shift = config->pad_bits % 8; in __regmap_init()
774 map->format.pad_bytes = config->pad_bits / 8; in __regmap_init()
775 map->format.reg_shift = config->reg_shift; in __regmap_init()
776 map->format.reg_bytes = BITS_TO_BYTES(config->reg_bits); in __regmap_init()
777 map->format.val_bytes = BITS_TO_BYTES(config->val_bits); in __regmap_init()
778 map->format.buf_size = BITS_TO_BYTES(config->reg_bits + config->val_bits + config->pad_bits); in __regmap_init()
779 if (config->reg_stride) in __regmap_init()
780 map->reg_stride = config->reg_stride; in __regmap_init()
782 map->reg_stride = 1; in __regmap_init()
783 if (is_power_of_2(map->reg_stride)) in __regmap_init()
784 map->reg_stride_order = ilog2(map->reg_stride); in __regmap_init()
786 map->reg_stride_order = -1; in __regmap_init()
787 map->use_single_read = config->use_single_read || !(config->read || (bus && bus->read)); in __regmap_init()
788 map->use_single_write = config->use_single_write || !(config->write || (bus && bus->write)); in __regmap_init()
789 map->can_multi_write = config->can_multi_write && (config->write || (bus && bus->write)); in __regmap_init()
790 if (bus) { in __regmap_init()
791 map->max_raw_read = bus->max_raw_read; in __regmap_init()
792 map->max_raw_write = bus->max_raw_write; in __regmap_init()
793 } else if (config->max_raw_read && config->max_raw_write) { in __regmap_init()
794 map->max_raw_read = config->max_raw_read; in __regmap_init()
795 map->max_raw_write = config->max_raw_write; in __regmap_init()
797 map->dev = dev; in __regmap_init()
798 map->bus = bus; in __regmap_init()
799 map->bus_context = bus_context; in __regmap_init()
800 map->max_register = config->max_register; in __regmap_init()
801 map->max_register_is_set = map->max_register ?: config->max_register_is_0; in __regmap_init()
802 map->wr_table = config->wr_table; in __regmap_init()
803 map->rd_table = config->rd_table; in __regmap_init()
804 map->volatile_table = config->volatile_table; in __regmap_init()
805 map->precious_table = config->precious_table; in __regmap_init()
806 map->wr_noinc_table = config->wr_noinc_table; in __regmap_init()
807 map->rd_noinc_table = config->rd_noinc_table; in __regmap_init()
808 map->writeable_reg = config->writeable_reg; in __regmap_init()
809 map->readable_reg = config->readable_reg; in __regmap_init()
810 map->volatile_reg = config->volatile_reg; in __regmap_init()
811 map->precious_reg = config->precious_reg; in __regmap_init()
812 map->writeable_noinc_reg = config->writeable_noinc_reg; in __regmap_init()
813 map->readable_noinc_reg = config->readable_noinc_reg; in __regmap_init()
814 map->cache_type = config->cache_type; in __regmap_init()
816 spin_lock_init(&map->async_lock); in __regmap_init()
817 INIT_LIST_HEAD(&map->async_list); in __regmap_init()
818 INIT_LIST_HEAD(&map->async_free); in __regmap_init()
819 init_waitqueue_head(&map->async_waitq); in __regmap_init()
821 if (config->read_flag_mask || in __regmap_init()
822 config->write_flag_mask || in __regmap_init()
823 config->zero_flag_mask) { in __regmap_init()
824 map->read_flag_mask = config->read_flag_mask; in __regmap_init()
825 map->write_flag_mask = config->write_flag_mask; in __regmap_init()
826 } else if (bus) { in __regmap_init()
827 map->read_flag_mask = bus->read_flag_mask; in __regmap_init()
830 if (config && config->read && config->write) { in __regmap_init()
831 map->reg_read = _regmap_bus_read; in __regmap_init()
832 if (config->reg_update_bits) in __regmap_init()
833 map->reg_update_bits = config->reg_update_bits; in __regmap_init()
836 map->read = config->read; in __regmap_init()
837 map->write = config->write; in __regmap_init()
841 } else if (!bus) { in __regmap_init()
842 map->reg_read = config->reg_read; in __regmap_init()
843 map->reg_write = config->reg_write; in __regmap_init()
844 map->reg_update_bits = config->reg_update_bits; in __regmap_init()
846 map->defer_caching = false; in __regmap_init()
848 } else if (!bus->read || !bus->write) { in __regmap_init()
849 map->reg_read = _regmap_bus_reg_read; in __regmap_init()
850 map->reg_write = _regmap_bus_reg_write; in __regmap_init()
851 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
853 map->defer_caching = false; in __regmap_init()
856 map->reg_read = _regmap_bus_read; in __regmap_init()
857 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
859 map->read = bus->read; in __regmap_init()
860 map->write = bus->write; in __regmap_init()
862 reg_endian = regmap_get_reg_endian(bus, config); in __regmap_init()
863 val_endian = regmap_get_val_endian(dev, bus, config); in __regmap_init()
866 switch (config->reg_bits + map->reg_shift) { in __regmap_init()
868 switch (config->val_bits) { in __regmap_init()
870 map->format.format_write = regmap_format_2_6_write; in __regmap_init()
878 switch (config->val_bits) { in __regmap_init()
880 map->format.format_write = regmap_format_4_12_write; in __regmap_init()
888 switch (config->val_bits) { in __regmap_init()
890 map->format.format_write = regmap_format_7_9_write; in __regmap_init()
893 map->format.format_write = regmap_format_7_17_write; in __regmap_init()
901 switch (config->val_bits) { in __regmap_init()
903 map->format.format_write = regmap_format_10_14_write; in __regmap_init()
911 switch (config->val_bits) { in __regmap_init()
913 map->format.format_write = regmap_format_12_20_write; in __regmap_init()
921 map->format.format_reg = regmap_format_8; in __regmap_init()
927 map->format.format_reg = regmap_format_16_be; in __regmap_init()
930 map->format.format_reg = regmap_format_16_le; in __regmap_init()
933 map->format.format_reg = regmap_format_16_native; in __regmap_init()
943 map->format.format_reg = regmap_format_24_be; in __regmap_init()
953 map->format.format_reg = regmap_format_32_be; in __regmap_init()
956 map->format.format_reg = regmap_format_32_le; in __regmap_init()
959 map->format.format_reg = regmap_format_32_native; in __regmap_init()
971 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
973 switch (config->val_bits) { in __regmap_init()
975 map->format.format_val = regmap_format_8; in __regmap_init()
976 map->format.parse_val = regmap_parse_8; in __regmap_init()
977 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
982 map->format.format_val = regmap_format_16_be; in __regmap_init()
983 map->format.parse_val = regmap_parse_16_be; in __regmap_init()
984 map->format.parse_inplace = regmap_parse_16_be_inplace; in __regmap_init()
987 map->format.format_val = regmap_format_16_le; in __regmap_init()
988 map->format.parse_val = regmap_parse_16_le; in __regmap_init()
989 map->format.parse_inplace = regmap_parse_16_le_inplace; in __regmap_init()
992 map->format.format_val = regmap_format_16_native; in __regmap_init()
993 map->format.parse_val = regmap_parse_16_native; in __regmap_init()
1002 map->format.format_val = regmap_format_24_be; in __regmap_init()
1003 map->format.parse_val = regmap_parse_24_be; in __regmap_init()
1012 map->format.format_val = regmap_format_32_be; in __regmap_init()
1013 map->format.parse_val = regmap_parse_32_be; in __regmap_init()
1014 map->format.parse_inplace = regmap_parse_32_be_inplace; in __regmap_init()
1017 map->format.format_val = regmap_format_32_le; in __regmap_init()
1018 map->format.parse_val = regmap_parse_32_le; in __regmap_init()
1019 map->format.parse_inplace = regmap_parse_32_le_inplace; in __regmap_init()
1022 map->format.format_val = regmap_format_32_native; in __regmap_init()
1023 map->format.parse_val = regmap_parse_32_native; in __regmap_init()
1031 if (map->format.format_write) { in __regmap_init()
1035 map->use_single_write = true; in __regmap_init()
1038 if (!map->format.format_write && in __regmap_init()
1039 !(map->format.format_reg && map->format.format_val)) in __regmap_init()
1042 map->work_buf = kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1043 if (map->work_buf == NULL) { in __regmap_init()
1044 ret = -ENOMEM; in __regmap_init()
1048 if (map->format.format_write) { in __regmap_init()
1049 map->defer_caching = false; in __regmap_init()
1050 map->reg_write = _regmap_bus_formatted_write; in __regmap_init()
1051 } else if (map->format.format_val) { in __regmap_init()
1052 map->defer_caching = true; in __regmap_init()
1053 map->reg_write = _regmap_bus_raw_write; in __regmap_init()
1058 map->range_tree = RB_ROOT; in __regmap_init()
1059 for (i = 0; i < config->num_ranges; i++) { in __regmap_init()
1060 const struct regmap_range_cfg *range_cfg = &config->ranges[i]; in __regmap_init()
1064 if (range_cfg->range_max < range_cfg->range_min) { in __regmap_init()
1065 dev_err(map->dev, "Invalid range %d: %u < %u\n", i, in __regmap_init()
1066 range_cfg->range_max, range_cfg->range_min); in __regmap_init()
1070 if (range_cfg->range_max > map->max_register) { in __regmap_init()
1071 dev_err(map->dev, "Invalid range %d: %u > %u\n", i, in __regmap_init()
1072 range_cfg->range_max, map->max_register); in __regmap_init()
1076 if (range_cfg->selector_reg > map->max_register) { in __regmap_init()
1077 dev_err(map->dev, in __regmap_init()
1078 "Invalid range %d: selector out of map\n", i); in __regmap_init()
1082 if (range_cfg->window_len == 0) { in __regmap_init()
1083 dev_err(map->dev, "Invalid range %d: window_len 0\n", in __regmap_init()
1088 /* Make sure, that this register range has no selector in __regmap_init()
1090 for (j = 0; j < config->num_ranges; j++) { in __regmap_init()
1091 unsigned int sel_reg = config->ranges[j].selector_reg; in __regmap_init()
1092 unsigned int win_min = config->ranges[j].window_start; in __regmap_init()
1094 config->ranges[j].window_len - 1; in __regmap_init()
1096 /* Allow data window inside its own virtual range */ in __regmap_init()
1100 if (range_cfg->range_min <= sel_reg && in __regmap_init()
1101 sel_reg <= range_cfg->range_max) { in __regmap_init()
1102 dev_err(map->dev, in __regmap_init()
1103 "Range %d: selector for %d in window\n", in __regmap_init()
1108 if (!(win_max < range_cfg->range_min || in __regmap_init()
1109 win_min > range_cfg->range_max)) { in __regmap_init()
1110 dev_err(map->dev, in __regmap_init()
1111 "Range %d: window for %d in window\n", in __regmap_init()
1119 ret = -ENOMEM; in __regmap_init()
1123 new->map = map; in __regmap_init()
1124 new->name = range_cfg->name; in __regmap_init()
1125 new->range_min = range_cfg->range_min; in __regmap_init()
1126 new->range_max = range_cfg->range_max; in __regmap_init()
1127 new->selector_reg = range_cfg->selector_reg; in __regmap_init()
1128 new->selector_mask = range_cfg->selector_mask; in __regmap_init()
1129 new->selector_shift = range_cfg->selector_shift; in __regmap_init()
1130 new->window_start = range_cfg->window_start; in __regmap_init()
1131 new->window_len = range_cfg->window_len; in __regmap_init()
1134 dev_err(map->dev, "Failed to add range %d\n", i); in __regmap_init()
1139 if (map->selector_work_buf == NULL) { in __regmap_init()
1140 map->selector_work_buf = in __regmap_init()
1141 kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1142 if (map->selector_work_buf == NULL) { in __regmap_init()
1143 ret = -ENOMEM; in __regmap_init()
1167 kfree(map->work_buf); in __regmap_init()
1169 if (map->hwlock) in __regmap_init()
1170 hwspin_lock_free(map->hwlock); in __regmap_init()
1172 kfree_const(map->name); in __regmap_init()
1186 const struct regmap_bus *bus, in __devm_regmap_init() argument
1196 return ERR_PTR(-ENOMEM); in __devm_regmap_init()
1198 regmap = __regmap_init(dev, bus, bus_context, config, in __devm_regmap_init()
1214 rm_field->regmap = regmap; in regmap_field_init()
1215 rm_field->reg = reg_field.reg; in regmap_field_init()
1216 rm_field->shift = reg_field.lsb; in regmap_field_init()
1217 rm_field->mask = GENMASK(reg_field.msb, reg_field.lsb); in regmap_field_init()
1219 WARN_ONCE(rm_field->mask == 0, "invalid empty mask defined\n"); in regmap_field_init()
1221 rm_field->id_size = reg_field.id_size; in regmap_field_init()
1222 rm_field->id_offset = reg_field.id_offset; in regmap_field_init()
1226 * devm_regmap_field_alloc() - Allocate and initialise a register field.
1242 return ERR_PTR(-ENOMEM); in devm_regmap_field_alloc()
1253 * regmap_field_bulk_alloc() - Allocate and initialise a bulk register field.
1260 * The return value will be an -ENOMEM on error or zero for success.
1274 return -ENOMEM; in regmap_field_bulk_alloc()
1286 * devm_regmap_field_bulk_alloc() - Allocate and initialise a bulk register
1295 * The return value will be an -ENOMEM on error or zero for success.
1310 return -ENOMEM; in devm_regmap_field_bulk_alloc()
1322 * regmap_field_bulk_free() - Free register field allocated using
1334 * devm_regmap_field_bulk_free() - Free a bulk register field allocated using
1342 * will be freed as per device-driver life-cycle.
1352 * devm_regmap_field_free() - Free a register field allocated using
1360 * will be freed as per device-driver life-cyle.
1370 * regmap_field_alloc() - Allocate and initialise a register field.
1385 return ERR_PTR(-ENOMEM); in regmap_field_alloc()
1394 * regmap_field_free() - Free register field allocated using
1406 * regmap_reinit_cache() - Reinitialise the current register cache
1426 map->max_register = config->max_register; in regmap_reinit_cache()
1427 map->max_register_is_set = map->max_register ?: config->max_register_is_0; in regmap_reinit_cache()
1428 map->writeable_reg = config->writeable_reg; in regmap_reinit_cache()
1429 map->readable_reg = config->readable_reg; in regmap_reinit_cache()
1430 map->volatile_reg = config->volatile_reg; in regmap_reinit_cache()
1431 map->precious_reg = config->precious_reg; in regmap_reinit_cache()
1432 map->writeable_noinc_reg = config->writeable_noinc_reg; in regmap_reinit_cache()
1433 map->readable_noinc_reg = config->readable_noinc_reg; in regmap_reinit_cache()
1434 map->cache_type = config->cache_type; in regmap_reinit_cache()
1442 map->cache_bypass = false; in regmap_reinit_cache()
1443 map->cache_only = false; in regmap_reinit_cache()
1450 * regmap_exit() - Free a previously allocated register map
1458 regmap_detach_dev(map->dev, map); in regmap_exit()
1463 if (map->bus && map->bus->free_context) in regmap_exit()
1464 map->bus->free_context(map->bus_context); in regmap_exit()
1465 kfree(map->work_buf); in regmap_exit()
1466 while (!list_empty(&map->async_free)) { in regmap_exit()
1467 async = list_first_entry_or_null(&map->async_free, in regmap_exit()
1470 list_del(&async->list); in regmap_exit()
1471 kfree(async->work_buf); in regmap_exit()
1474 if (map->hwlock) in regmap_exit()
1475 hwspin_lock_free(map->hwlock); in regmap_exit()
1476 if (map->lock == regmap_lock_mutex) in regmap_exit()
1477 mutex_destroy(&map->mutex); in regmap_exit()
1478 kfree_const(map->name); in regmap_exit()
1479 kfree(map->patch); in regmap_exit()
1480 if (map->bus && map->bus->free_on_exit) in regmap_exit()
1481 kfree(map->bus); in regmap_exit()
1496 return (*r)->name && !strcmp((*r)->name, data); in dev_get_regmap_match()
1502 * dev_get_regmap() - Obtain the regmap (if any) for a device
1525 * regmap_get_device() - Obtain the device from a regmap
1533 return map->dev; in regmap_get_device()
1538 struct regmap_range_node *range, in _regmap_select_page() argument
1547 win_offset = (*reg - range->range_min) % range->window_len; in _regmap_select_page()
1548 win_page = (*reg - range->range_min) / range->window_len; in _regmap_select_page()
1551 /* Bulk write shouldn't cross range boundary */ in _regmap_select_page()
1552 if (*reg + val_num - 1 > range->range_max) in _regmap_select_page()
1553 return -EINVAL; in _regmap_select_page()
1556 if (val_num > range->window_len - win_offset) in _regmap_select_page()
1557 return -EINVAL; in _regmap_select_page()
1564 range->window_start + win_offset != range->selector_reg) { in _regmap_select_page()
1566 orig_work_buf = map->work_buf; in _regmap_select_page()
1567 map->work_buf = map->selector_work_buf; in _regmap_select_page()
1569 ret = _regmap_update_bits(map, range->selector_reg, in _regmap_select_page()
1570 range->selector_mask, in _regmap_select_page()
1571 win_page << range->selector_shift, in _regmap_select_page()
1574 map->work_buf = orig_work_buf; in _regmap_select_page()
1580 *reg = range->window_start + win_offset; in _regmap_select_page()
1591 if (!mask || !map->work_buf) in regmap_set_work_buf_flag_mask()
1594 buf = map->work_buf; in regmap_set_work_buf_flag_mask()
1602 reg += map->reg_base; in regmap_reg_addr()
1604 if (map->format.reg_shift > 0) in regmap_reg_addr()
1605 reg >>= map->format.reg_shift; in regmap_reg_addr()
1606 else if (map->format.reg_shift < 0) in regmap_reg_addr()
1607 reg <<= -(map->format.reg_shift); in regmap_reg_addr()
1615 struct regmap_range_node *range; in _regmap_raw_write_impl() local
1617 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_raw_write_impl()
1618 map->format.pad_bytes; in _regmap_raw_write_impl()
1620 int ret = -ENOTSUPP; in _regmap_raw_write_impl()
1624 /* Check for unwritable or noinc registers in range in _regmap_raw_write_impl()
1628 for (i = 0; i < val_len / map->format.val_bytes; i++) { in _regmap_raw_write_impl()
1633 return -EINVAL; in _regmap_raw_write_impl()
1637 if (!map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1639 int val_bytes = map->format.val_bytes; in _regmap_raw_write_impl()
1642 i = noinc ? val_len - val_bytes : 0; in _regmap_raw_write_impl()
1644 ival = map->format.parse_val(val + i); in _regmap_raw_write_impl()
1648 dev_err(map->dev, in _regmap_raw_write_impl()
1654 if (map->cache_only) { in _regmap_raw_write_impl()
1655 map->cache_dirty = true; in _regmap_raw_write_impl()
1660 range = _regmap_range_lookup(map, reg); in _regmap_raw_write_impl()
1661 if (range) { in _regmap_raw_write_impl()
1662 int val_num = val_len / map->format.val_bytes; in _regmap_raw_write_impl()
1663 int win_offset = (reg - range->range_min) % range->window_len; in _regmap_raw_write_impl()
1664 int win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1668 dev_dbg(map->dev, "Writing window %d/%zu\n", in _regmap_raw_write_impl()
1669 win_residue, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1672 map->format.val_bytes, noinc); in _regmap_raw_write_impl()
1677 val_num -= win_residue; in _regmap_raw_write_impl()
1678 val += win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1679 val_len -= win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1681 win_offset = (reg - range->range_min) % in _regmap_raw_write_impl()
1682 range->window_len; in _regmap_raw_write_impl()
1683 win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1686 ret = _regmap_select_page(map, ®, range, noinc ? 1 : val_num); in _regmap_raw_write_impl()
1692 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_write_impl()
1693 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_write_impl()
1694 map->write_flag_mask); in _regmap_raw_write_impl()
1701 if (val != work_val && val_len == map->format.val_bytes) { in _regmap_raw_write_impl()
1702 memcpy(work_val, val, map->format.val_bytes); in _regmap_raw_write_impl()
1706 if (map->async && map->bus && map->bus->async_write) { in _regmap_raw_write_impl()
1711 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1712 async = list_first_entry_or_null(&map->async_free, in _regmap_raw_write_impl()
1716 list_del(&async->list); in _regmap_raw_write_impl()
1717 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1720 async = map->bus->async_alloc(); in _regmap_raw_write_impl()
1722 return -ENOMEM; in _regmap_raw_write_impl()
1724 async->work_buf = kzalloc(map->format.buf_size, in _regmap_raw_write_impl()
1726 if (!async->work_buf) { in _regmap_raw_write_impl()
1728 return -ENOMEM; in _regmap_raw_write_impl()
1732 async->map = map; in _regmap_raw_write_impl()
1735 memcpy(async->work_buf, map->work_buf, map->format.pad_bytes + in _regmap_raw_write_impl()
1736 map->format.reg_bytes + map->format.val_bytes); in _regmap_raw_write_impl()
1738 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1739 list_add_tail(&async->list, &map->async_list); in _regmap_raw_write_impl()
1740 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1743 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1744 async->work_buf, in _regmap_raw_write_impl()
1745 map->format.reg_bytes + in _regmap_raw_write_impl()
1746 map->format.pad_bytes, in _regmap_raw_write_impl()
1749 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1750 async->work_buf, in _regmap_raw_write_impl()
1751 map->format.reg_bytes + in _regmap_raw_write_impl()
1752 map->format.pad_bytes + in _regmap_raw_write_impl()
1756 dev_err(map->dev, "Failed to schedule write: %d\n", in _regmap_raw_write_impl()
1759 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1760 list_move(&async->list, &map->async_free); in _regmap_raw_write_impl()
1761 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1767 trace_regmap_hw_write_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1774 ret = map->write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1775 map->format.reg_bytes + in _regmap_raw_write_impl()
1776 map->format.pad_bytes + in _regmap_raw_write_impl()
1778 else if (map->bus && map->bus->gather_write) in _regmap_raw_write_impl()
1779 ret = map->bus->gather_write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1780 map->format.reg_bytes + in _regmap_raw_write_impl()
1781 map->format.pad_bytes, in _regmap_raw_write_impl()
1784 ret = -ENOTSUPP; in _regmap_raw_write_impl()
1787 if (ret == -ENOTSUPP) { in _regmap_raw_write_impl()
1788 len = map->format.reg_bytes + map->format.pad_bytes + val_len; in _regmap_raw_write_impl()
1791 return -ENOMEM; in _regmap_raw_write_impl()
1793 memcpy(buf, map->work_buf, map->format.reg_bytes); in _regmap_raw_write_impl()
1794 memcpy(buf + map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_write_impl()
1796 ret = map->write(map->bus_context, buf, len); in _regmap_raw_write_impl()
1799 } else if (ret != 0 && !map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1801 * thus call map->cache_ops->drop() directly in _regmap_raw_write_impl()
1803 if (map->cache_ops && map->cache_ops->drop) in _regmap_raw_write_impl()
1804 map->cache_ops->drop(map, reg, reg + 1); in _regmap_raw_write_impl()
1807 trace_regmap_hw_write_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1813 * regmap_can_raw_write - Test if regmap_raw_write() is supported
1819 return map->write && map->format.format_val && map->format.format_reg; in regmap_can_raw_write()
1824 * regmap_get_raw_read_max - Get the maximum size we can read
1830 return map->max_raw_read; in regmap_get_raw_read_max()
1835 * regmap_get_raw_write_max - Get the maximum size we can read
1841 return map->max_raw_write; in regmap_get_raw_write_max()
1849 struct regmap_range_node *range; in _regmap_bus_formatted_write() local
1852 WARN_ON(!map->format.format_write); in _regmap_bus_formatted_write()
1854 range = _regmap_range_lookup(map, reg); in _regmap_bus_formatted_write()
1855 if (range) { in _regmap_bus_formatted_write()
1856 ret = _regmap_select_page(map, ®, range, 1); in _regmap_bus_formatted_write()
1862 map->format.format_write(map, reg, val); in _regmap_bus_formatted_write()
1866 ret = map->write(map->bus_context, map->work_buf, map->format.buf_size); in _regmap_bus_formatted_write()
1877 struct regmap_range_node *range; in _regmap_bus_reg_write() local
1880 range = _regmap_range_lookup(map, reg); in _regmap_bus_reg_write()
1881 if (range) { in _regmap_bus_reg_write()
1882 ret = _regmap_select_page(map, ®, range, 1); in _regmap_bus_reg_write()
1888 return map->bus->reg_write(map->bus_context, reg, val); in _regmap_bus_reg_write()
1896 WARN_ON(!map->format.format_val); in _regmap_bus_raw_write()
1898 map->format.format_val(map->work_buf + map->format.reg_bytes in _regmap_bus_raw_write()
1899 + map->format.pad_bytes, val, 0); in _regmap_bus_raw_write()
1901 map->work_buf + in _regmap_bus_raw_write()
1902 map->format.reg_bytes + in _regmap_bus_raw_write()
1903 map->format.pad_bytes, in _regmap_bus_raw_write()
1904 map->format.val_bytes, in _regmap_bus_raw_write()
1910 return (map->bus || (!map->bus && map->read)) ? map : map->bus_context; in _regmap_map_get_context()
1920 return -EIO; in _regmap_write()
1922 if (!map->cache_bypass && !map->defer_caching) { in _regmap_write()
1926 if (map->cache_only) { in _regmap_write()
1927 map->cache_dirty = true; in _regmap_write()
1932 ret = map->reg_write(context, reg, val); in _regmap_write()
1935 dev_info(map->dev, "%x <= %x\n", reg, val); in _regmap_write()
1944 * regmap_write() - Write a value to a single register
1957 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write()
1958 return -EINVAL; in regmap_write()
1960 map->lock(map->lock_arg); in regmap_write()
1964 map->unlock(map->lock_arg); in regmap_write()
1971 * regmap_write_async() - Write a value to a single register asynchronously
1984 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write_async()
1985 return -EINVAL; in regmap_write_async()
1987 map->lock(map->lock_arg); in regmap_write_async()
1989 map->async = true; in regmap_write_async()
1993 map->async = false; in regmap_write_async()
1995 map->unlock(map->lock_arg); in regmap_write_async()
2004 size_t val_bytes = map->format.val_bytes; in _regmap_raw_write()
2011 return -EINVAL; in _regmap_raw_write()
2013 if (map->use_single_write) in _regmap_raw_write()
2015 else if (map->max_raw_write && val_len > map->max_raw_write) in _regmap_raw_write()
2016 chunk_regs = map->max_raw_write / val_bytes; in _regmap_raw_write()
2029 val_len -= chunk_bytes; in _regmap_raw_write()
2040 * regmap_raw_write() - Write raw values to one or more registers
2061 return -EINVAL; in regmap_raw_write()
2062 if (val_len % map->format.val_bytes) in regmap_raw_write()
2063 return -EINVAL; in regmap_raw_write()
2065 map->lock(map->lock_arg); in regmap_raw_write()
2069 map->unlock(map->lock_arg); in regmap_raw_write()
2078 size_t val_bytes = map->format.val_bytes; in regmap_noinc_readwrite()
2091 lastval = (unsigned int)u8p[val_count - 1]; in regmap_noinc_readwrite()
2096 lastval = (unsigned int)u16p[val_count - 1]; in regmap_noinc_readwrite()
2101 lastval = (unsigned int)u32p[val_count - 1]; in regmap_noinc_readwrite()
2104 return -EINVAL; in regmap_noinc_readwrite()
2113 if (!map->cache_bypass && !map->defer_caching) { in regmap_noinc_readwrite()
2117 if (map->cache_only) { in regmap_noinc_readwrite()
2118 map->cache_dirty = true; in regmap_noinc_readwrite()
2122 ret = map->bus->reg_noinc_write(map->bus_context, reg, val, val_count); in regmap_noinc_readwrite()
2124 ret = map->bus->reg_noinc_read(map->bus_context, reg, val, val_count); in regmap_noinc_readwrite()
2128 dev_info(map->dev, "%x %s [", reg, write ? "<=" : "=>"); in regmap_noinc_readwrite()
2143 if (i == (val_count - 1)) in regmap_noinc_readwrite()
2162 * The regmap API usually assumes that bulk bus write operations will write a
2163 * range of registers. Some devices have certain registers for which a write
2180 if (!map->write && !(map->bus && map->bus->reg_noinc_write)) in regmap_noinc_write()
2181 return -EINVAL; in regmap_noinc_write()
2182 if (val_len % map->format.val_bytes) in regmap_noinc_write()
2183 return -EINVAL; in regmap_noinc_write()
2184 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_write()
2185 return -EINVAL; in regmap_noinc_write()
2187 return -EINVAL; in regmap_noinc_write()
2189 map->lock(map->lock_arg); in regmap_noinc_write()
2192 ret = -EINVAL; in regmap_noinc_write()
2200 if (map->bus->reg_noinc_write) { in regmap_noinc_write()
2206 if (map->max_raw_write && map->max_raw_write < val_len) in regmap_noinc_write()
2207 write_len = map->max_raw_write; in regmap_noinc_write()
2214 val_len -= write_len; in regmap_noinc_write()
2218 map->unlock(map->lock_arg); in regmap_noinc_write()
2224 * regmap_field_update_bits_base() - Perform a read/modify/write cycle a
2244 mask = (mask << field->shift) & field->mask; in regmap_field_update_bits_base()
2246 return regmap_update_bits_base(field->regmap, field->reg, in regmap_field_update_bits_base()
2247 mask, val << field->shift, in regmap_field_update_bits_base()
2253 * regmap_field_test_bits() - Check if all specified bits are set in a
2259 * Returns -1 if the underlying regmap_field_read() fails, 0 if at least one of the
2275 * regmap_fields_update_bits_base() - Perform a read/modify/write cycle a
2293 if (id >= field->id_size) in regmap_fields_update_bits_base()
2294 return -EINVAL; in regmap_fields_update_bits_base()
2296 mask = (mask << field->shift) & field->mask; in regmap_fields_update_bits_base()
2298 return regmap_update_bits_base(field->regmap, in regmap_fields_update_bits_base()
2299 field->reg + (field->id_offset * id), in regmap_fields_update_bits_base()
2300 mask, val << field->shift, in regmap_fields_update_bits_base()
2306 * regmap_bulk_write() - Write multiple registers to the device
2323 size_t val_bytes = map->format.val_bytes; in regmap_bulk_write()
2325 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_write()
2326 return -EINVAL; in regmap_bulk_write()
2332 if (!map->write || !map->format.parse_inplace) { in regmap_bulk_write()
2333 map->lock(map->lock_arg); in regmap_bulk_write()
2348 ret = -EINVAL; in regmap_bulk_write()
2359 map->unlock(map->lock_arg); in regmap_bulk_write()
2363 wval = kmemdup_array(val, val_count, val_bytes, map->alloc_flags); in regmap_bulk_write()
2365 return -ENOMEM; in regmap_bulk_write()
2368 map->format.parse_inplace(wval + i); in regmap_bulk_write()
2397 size_t val_bytes = map->format.val_bytes; in _regmap_raw_multi_reg_write()
2398 size_t reg_bytes = map->format.reg_bytes; in _regmap_raw_multi_reg_write()
2399 size_t pad_bytes = map->format.pad_bytes; in _regmap_raw_multi_reg_write()
2404 return -EINVAL; in _regmap_raw_multi_reg_write()
2408 return -ENOMEM; in _regmap_raw_multi_reg_write()
2419 map->format.format_reg(u8, reg, map->reg_shift); in _regmap_raw_multi_reg_write()
2421 map->format.format_val(u8, val, 0); in _regmap_raw_multi_reg_write()
2425 *u8 |= map->write_flag_mask; in _regmap_raw_multi_reg_write()
2427 ret = map->write(map->bus_context, buf, len); in _regmap_raw_multi_reg_write()
2440 struct regmap_range_node *range) in _regmap_register_page() argument
2442 unsigned int win_page = (reg - range->range_min) / range->window_len; in _regmap_register_page()
2465 struct regmap_range_node *range; in _regmap_range_multi_paged_reg_write() local
2467 range = _regmap_range_lookup(map, reg); in _regmap_range_multi_paged_reg_write()
2468 if (range) { in _regmap_range_multi_paged_reg_write()
2470 range); in _regmap_range_multi_paged_reg_write()
2501 if (map->can_sleep) in _regmap_range_multi_paged_reg_write()
2513 range, 1); in _regmap_range_multi_paged_reg_write()
2535 if (!map->can_multi_write) { in _regmap_multi_reg_write()
2542 if (map->can_sleep) in _regmap_multi_reg_write()
2551 if (!map->format.parse_inplace) in _regmap_multi_reg_write()
2552 return -EINVAL; in _regmap_multi_reg_write()
2554 if (map->writeable_reg) in _regmap_multi_reg_write()
2557 if (!map->writeable_reg(map->dev, reg)) in _regmap_multi_reg_write()
2558 return -EINVAL; in _regmap_multi_reg_write()
2559 if (!IS_ALIGNED(reg, map->reg_stride)) in _regmap_multi_reg_write()
2560 return -EINVAL; in _regmap_multi_reg_write()
2563 if (!map->cache_bypass) { in _regmap_multi_reg_write()
2569 dev_err(map->dev, in _regmap_multi_reg_write()
2575 if (map->cache_only) { in _regmap_multi_reg_write()
2576 map->cache_dirty = true; in _regmap_multi_reg_write()
2581 WARN_ON(!map->bus); in _regmap_multi_reg_write()
2585 struct regmap_range_node *range; in _regmap_multi_reg_write() local
2590 range = _regmap_range_lookup(map, reg); in _regmap_multi_reg_write()
2591 if (range || regs[i].delay_us) { in _regmap_multi_reg_write()
2596 return -ENOMEM; in _regmap_multi_reg_write()
2608 * regmap_multi_reg_write() - Write multiple registers to the device
2615 * pairs are supplied in any order, possibly not all in a single range.
2618 * target bus as R,V1,V2,V3,..,Vn where successively higher registers are
2620 * the data as R1,V1,R2,V2,..,Rn,Vn on the target bus. The target device
2631 map->lock(map->lock_arg); in regmap_multi_reg_write()
2635 map->unlock(map->lock_arg); in regmap_multi_reg_write()
2642 * regmap_multi_reg_write_bypassed() - Write multiple registers to the
2666 map->lock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2668 bypass = map->cache_bypass; in regmap_multi_reg_write_bypassed()
2669 map->cache_bypass = true; in regmap_multi_reg_write_bypassed()
2673 map->cache_bypass = bypass; in regmap_multi_reg_write_bypassed()
2675 map->unlock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2682 * regmap_raw_write_async() - Write raw values to one or more registers
2695 * If supported by the underlying bus the write will be scheduled
2708 if (val_len % map->format.val_bytes) in regmap_raw_write_async()
2709 return -EINVAL; in regmap_raw_write_async()
2710 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_write_async()
2711 return -EINVAL; in regmap_raw_write_async()
2713 map->lock(map->lock_arg); in regmap_raw_write_async()
2715 map->async = true; in regmap_raw_write_async()
2719 map->async = false; in regmap_raw_write_async()
2721 map->unlock(map->lock_arg); in regmap_raw_write_async()
2730 struct regmap_range_node *range; in _regmap_raw_read() local
2733 if (!map->read) in _regmap_raw_read()
2734 return -EINVAL; in _regmap_raw_read()
2736 range = _regmap_range_lookup(map, reg); in _regmap_raw_read()
2737 if (range) { in _regmap_raw_read()
2738 ret = _regmap_select_page(map, ®, range, in _regmap_raw_read()
2739 noinc ? 1 : val_len / map->format.val_bytes); in _regmap_raw_read()
2745 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_read()
2746 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_read()
2747 map->read_flag_mask); in _regmap_raw_read()
2748 trace_regmap_hw_read_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2750 ret = map->read(map->bus_context, map->work_buf, in _regmap_raw_read()
2751 map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_read()
2754 trace_regmap_hw_read_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2763 struct regmap_range_node *range; in _regmap_bus_reg_read() local
2766 range = _regmap_range_lookup(map, reg); in _regmap_bus_reg_read()
2767 if (range) { in _regmap_bus_reg_read()
2768 ret = _regmap_select_page(map, ®, range, 1); in _regmap_bus_reg_read()
2774 return map->bus->reg_read(map->bus_context, reg, val); in _regmap_bus_reg_read()
2782 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_bus_read()
2783 map->format.pad_bytes; in _regmap_bus_read()
2785 if (!map->format.parse_val) in _regmap_bus_read()
2786 return -EINVAL; in _regmap_bus_read()
2788 ret = _regmap_raw_read(map, reg, work_val, map->format.val_bytes, false); in _regmap_bus_read()
2790 *val = map->format.parse_val(work_val); in _regmap_bus_read()
2801 if (!map->cache_bypass) { in _regmap_read()
2807 if (map->cache_only) in _regmap_read()
2808 return -EBUSY; in _regmap_read()
2811 return -EIO; in _regmap_read()
2813 ret = map->reg_read(context, reg, val); in _regmap_read()
2816 dev_info(map->dev, "%x => %x\n", reg, *val); in _regmap_read()
2820 if (!map->cache_bypass) in _regmap_read()
2828 * regmap_read() - Read a value from a single register
2841 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_read()
2842 return -EINVAL; in regmap_read()
2844 map->lock(map->lock_arg); in regmap_read()
2848 map->unlock(map->lock_arg); in regmap_read()
2855 * regmap_read_bypassed() - Read a value from a single register direct
2870 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_read_bypassed()
2871 return -EINVAL; in regmap_read_bypassed()
2873 map->lock(map->lock_arg); in regmap_read_bypassed()
2875 bypass = map->cache_bypass; in regmap_read_bypassed()
2876 cache_only = map->cache_only; in regmap_read_bypassed()
2877 map->cache_bypass = true; in regmap_read_bypassed()
2878 map->cache_only = false; in regmap_read_bypassed()
2882 map->cache_bypass = bypass; in regmap_read_bypassed()
2883 map->cache_only = cache_only; in regmap_read_bypassed()
2885 map->unlock(map->lock_arg); in regmap_read_bypassed()
2892 * regmap_raw_read() - Read raw data from the device
2905 size_t val_bytes = map->format.val_bytes; in regmap_raw_read()
2910 if (val_len % map->format.val_bytes) in regmap_raw_read()
2911 return -EINVAL; in regmap_raw_read()
2912 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_read()
2913 return -EINVAL; in regmap_raw_read()
2915 return -EINVAL; in regmap_raw_read()
2917 map->lock(map->lock_arg); in regmap_raw_read()
2919 if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || in regmap_raw_read()
2920 map->cache_type == REGCACHE_NONE) { in regmap_raw_read()
2924 if (!map->cache_bypass && map->cache_only) { in regmap_raw_read()
2925 ret = -EBUSY; in regmap_raw_read()
2929 if (!map->read) { in regmap_raw_read()
2930 ret = -ENOTSUPP; in regmap_raw_read()
2934 if (map->use_single_read) in regmap_raw_read()
2936 else if (map->max_raw_read && val_len > map->max_raw_read) in regmap_raw_read()
2937 chunk_regs = map->max_raw_read / val_bytes; in regmap_raw_read()
2950 val_len -= chunk_bytes; in regmap_raw_read()
2969 map->format.format_val(val + (i * val_bytes), v, 0); in regmap_raw_read()
2974 map->unlock(map->lock_arg); in regmap_raw_read()
2990 * range of registers. Some devices have certain registers for which a read
3007 if (!map->read) in regmap_noinc_read()
3008 return -ENOTSUPP; in regmap_noinc_read()
3010 if (val_len % map->format.val_bytes) in regmap_noinc_read()
3011 return -EINVAL; in regmap_noinc_read()
3012 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_read()
3013 return -EINVAL; in regmap_noinc_read()
3015 return -EINVAL; in regmap_noinc_read()
3017 map->lock(map->lock_arg); in regmap_noinc_read()
3020 ret = -EINVAL; in regmap_noinc_read()
3030 if (!map->cache_bypass && map->cache_only) { in regmap_noinc_read()
3031 ret = -EBUSY; in regmap_noinc_read()
3036 if (map->bus->reg_noinc_read) { in regmap_noinc_read()
3042 if (map->max_raw_read && map->max_raw_read < val_len) in regmap_noinc_read()
3043 read_len = map->max_raw_read; in regmap_noinc_read()
3050 val_len -= read_len; in regmap_noinc_read()
3054 map->unlock(map->lock_arg); in regmap_noinc_read()
3072 ret = regmap_read(field->regmap, field->reg, ®_val); in regmap_field_read()
3076 reg_val &= field->mask; in regmap_field_read()
3077 reg_val >>= field->shift; in regmap_field_read()
3085 * regmap_fields_read() - Read a value to a single register field with port ID
3100 if (id >= field->id_size) in regmap_fields_read()
3101 return -EINVAL; in regmap_fields_read()
3103 ret = regmap_read(field->regmap, in regmap_fields_read()
3104 field->reg + (field->id_offset * id), in regmap_fields_read()
3109 reg_val &= field->mask; in regmap_fields_read()
3110 reg_val >>= field->shift; in regmap_fields_read()
3125 map->lock(map->lock_arg); in _regmap_bulk_read()
3131 if (!IS_ALIGNED(regs[i], map->reg_stride)) { in _regmap_bulk_read()
3132 ret = -EINVAL; in _regmap_bulk_read()
3142 switch (map->format.val_bytes) { in _regmap_bulk_read()
3153 ret = -EINVAL; in _regmap_bulk_read()
3158 map->unlock(map->lock_arg); in _regmap_bulk_read()
3163 * regmap_bulk_read() - Read multiple sequential registers from the device
3177 size_t val_bytes = map->format.val_bytes; in regmap_bulk_read()
3180 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_read()
3181 return -EINVAL; in regmap_bulk_read()
3183 return -EINVAL; in regmap_bulk_read()
3185 if (map->read && map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) { in regmap_bulk_read()
3191 map->format.parse_inplace(val + i); in regmap_bulk_read()
3202 * regmap_multi_reg_read() - Read multiple non-sequential registers from the device
3216 return -EINVAL; in regmap_multi_reg_read()
3232 if (regmap_volatile(map, reg) && map->reg_update_bits) { in _regmap_update_bits()
3234 ret = map->reg_update_bits(map->bus_context, reg, mask, val); in _regmap_update_bits()
3245 if (force_write || (tmp != orig) || map->force_write_field) { in _regmap_update_bits()
3256 * regmap_update_bits_base() - Perform a read/modify/write cycle on a register
3283 map->lock(map->lock_arg); in regmap_update_bits_base()
3285 map->async = async; in regmap_update_bits_base()
3289 map->async = false; in regmap_update_bits_base()
3291 map->unlock(map->lock_arg); in regmap_update_bits_base()
3298 * regmap_test_bits() - Check if all specified bits are set in a register.
3322 struct regmap *map = async->map; in regmap_async_complete_cb()
3327 spin_lock(&map->async_lock); in regmap_async_complete_cb()
3328 list_move(&async->list, &map->async_free); in regmap_async_complete_cb()
3329 wake = list_empty(&map->async_list); in regmap_async_complete_cb()
3332 map->async_ret = ret; in regmap_async_complete_cb()
3334 spin_unlock(&map->async_lock); in regmap_async_complete_cb()
3337 wake_up(&map->async_waitq); in regmap_async_complete_cb()
3346 spin_lock_irqsave(&map->async_lock, flags); in regmap_async_is_done()
3347 ret = list_empty(&map->async_list); in regmap_async_is_done()
3348 spin_unlock_irqrestore(&map->async_lock, flags); in regmap_async_is_done()
3354 * regmap_async_complete - Ensure all asynchronous I/O has completed.
3367 if (!map->bus || !map->bus->async_write) in regmap_async_complete()
3372 wait_event(map->async_waitq, regmap_async_is_done(map)); in regmap_async_complete()
3374 spin_lock_irqsave(&map->async_lock, flags); in regmap_async_complete()
3375 ret = map->async_ret; in regmap_async_complete()
3376 map->async_ret = 0; in regmap_async_complete()
3377 spin_unlock_irqrestore(&map->async_lock, flags); in regmap_async_complete()
3386 * regmap_register_patch - Register and apply register updates to be applied
3413 p = krealloc(map->patch, in regmap_register_patch()
3414 sizeof(struct reg_sequence) * (map->patch_regs + num_regs), in regmap_register_patch()
3417 memcpy(p + map->patch_regs, regs, num_regs * sizeof(*regs)); in regmap_register_patch()
3418 map->patch = p; in regmap_register_patch()
3419 map->patch_regs += num_regs; in regmap_register_patch()
3421 return -ENOMEM; in regmap_register_patch()
3424 map->lock(map->lock_arg); in regmap_register_patch()
3426 bypass = map->cache_bypass; in regmap_register_patch()
3428 map->cache_bypass = true; in regmap_register_patch()
3429 map->async = true; in regmap_register_patch()
3433 map->async = false; in regmap_register_patch()
3434 map->cache_bypass = bypass; in regmap_register_patch()
3436 map->unlock(map->lock_arg); in regmap_register_patch()
3445 * regmap_get_val_bytes() - Report the size of a register value
3454 if (map->format.format_write) in regmap_get_val_bytes()
3455 return -EINVAL; in regmap_get_val_bytes()
3457 return map->format.val_bytes; in regmap_get_val_bytes()
3462 * regmap_get_max_register() - Report the max register value
3471 return map->max_register_is_set ? map->max_register : -EINVAL; in regmap_get_max_register()
3476 * regmap_get_reg_stride() - Report the register address stride
3485 return map->reg_stride; in regmap_get_reg_stride()
3490 * regmap_might_sleep() - Returns whether a regmap access might sleep.
3498 return map->can_sleep; in regmap_might_sleep()
3505 if (!map->format.parse_val) in regmap_parse_val()
3506 return -EINVAL; in regmap_parse_val()
3508 *val = map->format.parse_val(buf); in regmap_parse_val()