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()
452 hwspin_lock_timeout(map->hwlock, UINT_MAX); in regmap_lock_hwlock()
459 hwspin_lock_timeout_irq(map->hwlock, UINT_MAX); in regmap_lock_hwlock_irq()
466 hwspin_lock_timeout_irqsave(map->hwlock, UINT_MAX, in regmap_lock_hwlock_irqsave()
467 &map->spinlock_flags); in regmap_lock_hwlock_irqsave()
474 hwspin_unlock(map->hwlock); in regmap_unlock_hwlock()
481 hwspin_unlock_irq(map->hwlock); in regmap_unlock_hwlock_irq()
488 hwspin_unlock_irqrestore(map->hwlock, &map->spinlock_flags); in regmap_unlock_hwlock_irqrestore()
499 mutex_lock(&map->mutex); in regmap_lock_mutex()
505 mutex_unlock(&map->mutex); in regmap_unlock_mutex()
509 __acquires(&map->spinlock) in regmap_lock_spinlock()
514 spin_lock_irqsave(&map->spinlock, flags); in regmap_lock_spinlock()
515 map->spinlock_flags = flags; in regmap_lock_spinlock()
519 __releases(&map->spinlock) in regmap_unlock_spinlock()
522 spin_unlock_irqrestore(&map->spinlock, map->spinlock_flags); in regmap_unlock_spinlock()
526 __acquires(&map->raw_spinlock) in regmap_lock_raw_spinlock()
531 raw_spin_lock_irqsave(&map->raw_spinlock, flags); in regmap_lock_raw_spinlock()
532 map->raw_spinlock_flags = flags; in regmap_lock_raw_spinlock()
536 __releases(&map->raw_spinlock) in regmap_unlock_raw_spinlock()
539 raw_spin_unlock_irqrestore(&map->raw_spinlock, map->raw_spinlock_flags); in regmap_unlock_raw_spinlock()
554 struct rb_root *root = &map->range_tree; in _regmap_range_add()
555 struct rb_node **new = &(root->rb_node), *parent = NULL; in _regmap_range_add()
562 if (data->range_max < this->range_min) in _regmap_range_add()
563 new = &((*new)->rb_left); in _regmap_range_add()
564 else if (data->range_min > this->range_max) in _regmap_range_add()
565 new = &((*new)->rb_right); in _regmap_range_add()
570 rb_link_node(&data->node, parent, new); in _regmap_range_add()
571 rb_insert_color(&data->node, root); in _regmap_range_add()
579 struct rb_node *node = map->range_tree.rb_node; in _regmap_range_lookup()
585 if (reg < this->range_min) in _regmap_range_lookup()
586 node = node->rb_left; in _regmap_range_lookup()
587 else if (reg > this->range_max) in _regmap_range_lookup()
588 node = node->rb_right; in _regmap_range_lookup()
601 next = rb_first(&map->range_tree); in regmap_range_exit()
604 next = rb_next(&range_node->node); in regmap_range_exit()
605 rb_erase(&range_node->node, &map->range_tree); in regmap_range_exit()
609 kfree(map->selector_work_buf); in regmap_range_exit()
614 if (config->name) { in regmap_set_name()
615 const char *name = kstrdup_const(config->name, GFP_KERNEL); in regmap_set_name()
618 return -ENOMEM; in regmap_set_name()
620 kfree_const(map->name); in regmap_set_name()
621 map->name = name; in regmap_set_name()
633 map->dev = dev; in regmap_attach_dev()
646 return -ENOMEM; in regmap_attach_dev()
655 static enum regmap_endian regmap_get_reg_endian(const struct regmap_bus *bus, in regmap_get_reg_endian() argument
661 endian = config->reg_format_endian; in regmap_get_reg_endian()
663 /* If the regmap config specified a non-default value, use that */ in regmap_get_reg_endian()
667 /* Retrieve the endianness specification from the bus config */ in regmap_get_reg_endian()
668 if (bus && bus->reg_format_endian_default) in regmap_get_reg_endian()
669 endian = bus->reg_format_endian_default; in regmap_get_reg_endian()
671 /* If the bus specified a non-default value, use that */ in regmap_get_reg_endian()
680 const struct regmap_bus *bus, in regmap_get_val_endian() argument
687 endian = config->val_format_endian; in regmap_get_val_endian()
689 /* If the regmap config specified a non-default value, use that */ in regmap_get_val_endian()
694 if (fwnode_property_read_bool(fwnode, "big-endian")) in regmap_get_val_endian()
696 else if (fwnode_property_read_bool(fwnode, "little-endian")) in regmap_get_val_endian()
698 else if (fwnode_property_read_bool(fwnode, "native-endian")) in regmap_get_val_endian()
705 /* Retrieve the endianness specification from the bus config */ in regmap_get_val_endian()
706 if (bus && bus->val_format_endian_default) in regmap_get_val_endian()
707 endian = bus->val_format_endian_default; in regmap_get_val_endian()
709 /* If the bus specified a non-default value, use that */ in regmap_get_val_endian()
719 const struct regmap_bus *bus, in __regmap_init() argument
726 int ret = -EINVAL; in __regmap_init()
735 ret = -ENOMEM; in __regmap_init()
743 ret = -EINVAL; /* Later error paths rely on this */ in __regmap_init()
745 if (config->disable_locking) { in __regmap_init()
746 map->lock = map->unlock = regmap_lock_unlock_none; in __regmap_init()
747 map->can_sleep = config->can_sleep; in __regmap_init()
749 } else if (config->lock && config->unlock) { in __regmap_init()
750 map->lock = config->lock; in __regmap_init()
751 map->unlock = config->unlock; in __regmap_init()
752 map->lock_arg = config->lock_arg; in __regmap_init()
753 map->can_sleep = config->can_sleep; in __regmap_init()
754 } else if (config->use_hwlock) { in __regmap_init()
755 map->hwlock = hwspin_lock_request_specific(config->hwlock_id); in __regmap_init()
756 if (!map->hwlock) { in __regmap_init()
757 ret = -ENXIO; in __regmap_init()
761 switch (config->hwlock_mode) { in __regmap_init()
763 map->lock = regmap_lock_hwlock_irqsave; in __regmap_init()
764 map->unlock = regmap_unlock_hwlock_irqrestore; in __regmap_init()
767 map->lock = regmap_lock_hwlock_irq; in __regmap_init()
768 map->unlock = regmap_unlock_hwlock_irq; in __regmap_init()
771 map->lock = regmap_lock_hwlock; in __regmap_init()
772 map->unlock = regmap_unlock_hwlock; in __regmap_init()
776 map->lock_arg = map; in __regmap_init()
778 if ((bus && bus->fast_io) || in __regmap_init()
779 config->fast_io) { in __regmap_init()
780 if (config->use_raw_spinlock) { in __regmap_init()
781 raw_spin_lock_init(&map->raw_spinlock); in __regmap_init()
782 map->lock = regmap_lock_raw_spinlock; in __regmap_init()
783 map->unlock = regmap_unlock_raw_spinlock; in __regmap_init()
784 lockdep_set_class_and_name(&map->raw_spinlock, in __regmap_init()
787 spin_lock_init(&map->spinlock); in __regmap_init()
788 map->lock = regmap_lock_spinlock; in __regmap_init()
789 map->unlock = regmap_unlock_spinlock; in __regmap_init()
790 lockdep_set_class_and_name(&map->spinlock, in __regmap_init()
794 mutex_init(&map->mutex); in __regmap_init()
795 map->lock = regmap_lock_mutex; in __regmap_init()
796 map->unlock = regmap_unlock_mutex; in __regmap_init()
797 map->can_sleep = true; in __regmap_init()
798 lockdep_set_class_and_name(&map->mutex, in __regmap_init()
801 map->lock_arg = map; in __regmap_init()
805 * When we write in fast-paths with regmap_bulk_write() don't allocate in __regmap_init()
808 if ((bus && bus->fast_io) || config->fast_io) in __regmap_init()
809 map->alloc_flags = GFP_ATOMIC; in __regmap_init()
811 map->alloc_flags = GFP_KERNEL; in __regmap_init()
813 map->reg_base = config->reg_base; in __regmap_init()
815 map->format.reg_bytes = DIV_ROUND_UP(config->reg_bits, 8); in __regmap_init()
816 map->format.pad_bytes = config->pad_bits / 8; in __regmap_init()
817 map->format.reg_downshift = config->reg_downshift; in __regmap_init()
818 map->format.val_bytes = DIV_ROUND_UP(config->val_bits, 8); in __regmap_init()
819 map->format.buf_size = DIV_ROUND_UP(config->reg_bits + in __regmap_init()
820 config->val_bits + config->pad_bits, 8); in __regmap_init()
821 map->reg_shift = config->pad_bits % 8; in __regmap_init()
822 if (config->reg_stride) in __regmap_init()
823 map->reg_stride = config->reg_stride; in __regmap_init()
825 map->reg_stride = 1; in __regmap_init()
826 if (is_power_of_2(map->reg_stride)) in __regmap_init()
827 map->reg_stride_order = ilog2(map->reg_stride); in __regmap_init()
829 map->reg_stride_order = -1; in __regmap_init()
830 map->use_single_read = config->use_single_read || !(config->read || (bus && bus->read)); in __regmap_init()
831 map->use_single_write = config->use_single_write || !(config->write || (bus && bus->write)); in __regmap_init()
832 map->can_multi_write = config->can_multi_write && (config->write || (bus && bus->write)); in __regmap_init()
833 if (bus) { in __regmap_init()
834 map->max_raw_read = bus->max_raw_read; in __regmap_init()
835 map->max_raw_write = bus->max_raw_write; in __regmap_init()
836 } else if (config->max_raw_read && config->max_raw_write) { in __regmap_init()
837 map->max_raw_read = config->max_raw_read; in __regmap_init()
838 map->max_raw_write = config->max_raw_write; in __regmap_init()
840 map->dev = dev; in __regmap_init()
841 map->bus = bus; in __regmap_init()
842 map->bus_context = bus_context; in __regmap_init()
843 map->max_register = config->max_register; in __regmap_init()
844 map->wr_table = config->wr_table; in __regmap_init()
845 map->rd_table = config->rd_table; in __regmap_init()
846 map->volatile_table = config->volatile_table; in __regmap_init()
847 map->precious_table = config->precious_table; in __regmap_init()
848 map->wr_noinc_table = config->wr_noinc_table; in __regmap_init()
849 map->rd_noinc_table = config->rd_noinc_table; in __regmap_init()
850 map->writeable_reg = config->writeable_reg; in __regmap_init()
851 map->readable_reg = config->readable_reg; in __regmap_init()
852 map->volatile_reg = config->volatile_reg; in __regmap_init()
853 map->precious_reg = config->precious_reg; in __regmap_init()
854 map->writeable_noinc_reg = config->writeable_noinc_reg; in __regmap_init()
855 map->readable_noinc_reg = config->readable_noinc_reg; in __regmap_init()
856 map->cache_type = config->cache_type; in __regmap_init()
858 spin_lock_init(&map->async_lock); in __regmap_init()
859 INIT_LIST_HEAD(&map->async_list); in __regmap_init()
860 INIT_LIST_HEAD(&map->async_free); in __regmap_init()
861 init_waitqueue_head(&map->async_waitq); in __regmap_init()
863 if (config->read_flag_mask || in __regmap_init()
864 config->write_flag_mask || in __regmap_init()
865 config->zero_flag_mask) { in __regmap_init()
866 map->read_flag_mask = config->read_flag_mask; in __regmap_init()
867 map->write_flag_mask = config->write_flag_mask; in __regmap_init()
868 } else if (bus) { in __regmap_init()
869 map->read_flag_mask = bus->read_flag_mask; in __regmap_init()
872 if (config && config->read && config->write) { in __regmap_init()
873 map->reg_read = _regmap_bus_read; in __regmap_init()
874 if (config->reg_update_bits) in __regmap_init()
875 map->reg_update_bits = config->reg_update_bits; in __regmap_init()
878 map->read = config->read; in __regmap_init()
879 map->write = config->write; in __regmap_init()
883 } else if (!bus) { in __regmap_init()
884 map->reg_read = config->reg_read; in __regmap_init()
885 map->reg_write = config->reg_write; in __regmap_init()
886 map->reg_update_bits = config->reg_update_bits; in __regmap_init()
888 map->defer_caching = false; in __regmap_init()
890 } else if (!bus->read || !bus->write) { in __regmap_init()
891 map->reg_read = _regmap_bus_reg_read; in __regmap_init()
892 map->reg_write = _regmap_bus_reg_write; in __regmap_init()
893 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
895 map->defer_caching = false; in __regmap_init()
898 map->reg_read = _regmap_bus_read; in __regmap_init()
899 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
901 map->read = bus->read; in __regmap_init()
902 map->write = bus->write; in __regmap_init()
904 reg_endian = regmap_get_reg_endian(bus, config); in __regmap_init()
905 val_endian = regmap_get_val_endian(dev, bus, config); in __regmap_init()
908 switch (config->reg_bits + map->reg_shift) { in __regmap_init()
910 switch (config->val_bits) { in __regmap_init()
912 map->format.format_write = regmap_format_2_6_write; in __regmap_init()
920 switch (config->val_bits) { in __regmap_init()
922 map->format.format_write = regmap_format_4_12_write; in __regmap_init()
930 switch (config->val_bits) { in __regmap_init()
932 map->format.format_write = regmap_format_7_9_write; in __regmap_init()
935 map->format.format_write = regmap_format_7_17_write; in __regmap_init()
943 switch (config->val_bits) { in __regmap_init()
945 map->format.format_write = regmap_format_10_14_write; in __regmap_init()
953 switch (config->val_bits) { in __regmap_init()
955 map->format.format_write = regmap_format_12_20_write; in __regmap_init()
963 map->format.format_reg = regmap_format_8; in __regmap_init()
969 map->format.format_reg = regmap_format_16_be; in __regmap_init()
972 map->format.format_reg = regmap_format_16_le; in __regmap_init()
975 map->format.format_reg = regmap_format_16_native; in __regmap_init()
985 map->format.format_reg = regmap_format_24_be; in __regmap_init()
995 map->format.format_reg = regmap_format_32_be; in __regmap_init()
998 map->format.format_reg = regmap_format_32_le; in __regmap_init()
1001 map->format.format_reg = regmap_format_32_native; in __regmap_init()
1012 map->format.format_reg = regmap_format_64_be; in __regmap_init()
1015 map->format.format_reg = regmap_format_64_le; in __regmap_init()
1018 map->format.format_reg = regmap_format_64_native; in __regmap_init()
1031 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
1033 switch (config->val_bits) { in __regmap_init()
1035 map->format.format_val = regmap_format_8; in __regmap_init()
1036 map->format.parse_val = regmap_parse_8; in __regmap_init()
1037 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
1042 map->format.format_val = regmap_format_16_be; in __regmap_init()
1043 map->format.parse_val = regmap_parse_16_be; in __regmap_init()
1044 map->format.parse_inplace = regmap_parse_16_be_inplace; in __regmap_init()
1047 map->format.format_val = regmap_format_16_le; in __regmap_init()
1048 map->format.parse_val = regmap_parse_16_le; in __regmap_init()
1049 map->format.parse_inplace = regmap_parse_16_le_inplace; in __regmap_init()
1052 map->format.format_val = regmap_format_16_native; in __regmap_init()
1053 map->format.parse_val = regmap_parse_16_native; in __regmap_init()
1062 map->format.format_val = regmap_format_24_be; in __regmap_init()
1063 map->format.parse_val = regmap_parse_24_be; in __regmap_init()
1072 map->format.format_val = regmap_format_32_be; in __regmap_init()
1073 map->format.parse_val = regmap_parse_32_be; in __regmap_init()
1074 map->format.parse_inplace = regmap_parse_32_be_inplace; in __regmap_init()
1077 map->format.format_val = regmap_format_32_le; in __regmap_init()
1078 map->format.parse_val = regmap_parse_32_le; in __regmap_init()
1079 map->format.parse_inplace = regmap_parse_32_le_inplace; in __regmap_init()
1082 map->format.format_val = regmap_format_32_native; in __regmap_init()
1083 map->format.parse_val = regmap_parse_32_native; in __regmap_init()
1093 map->format.format_val = regmap_format_64_be; in __regmap_init()
1094 map->format.parse_val = regmap_parse_64_be; in __regmap_init()
1095 map->format.parse_inplace = regmap_parse_64_be_inplace; in __regmap_init()
1098 map->format.format_val = regmap_format_64_le; in __regmap_init()
1099 map->format.parse_val = regmap_parse_64_le; in __regmap_init()
1100 map->format.parse_inplace = regmap_parse_64_le_inplace; in __regmap_init()
1103 map->format.format_val = regmap_format_64_native; in __regmap_init()
1104 map->format.parse_val = regmap_parse_64_native; in __regmap_init()
1113 if (map->format.format_write) { in __regmap_init()
1117 map->use_single_write = true; in __regmap_init()
1120 if (!map->format.format_write && in __regmap_init()
1121 !(map->format.format_reg && map->format.format_val)) in __regmap_init()
1124 map->work_buf = kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1125 if (map->work_buf == NULL) { in __regmap_init()
1126 ret = -ENOMEM; in __regmap_init()
1130 if (map->format.format_write) { in __regmap_init()
1131 map->defer_caching = false; in __regmap_init()
1132 map->reg_write = _regmap_bus_formatted_write; in __regmap_init()
1133 } else if (map->format.format_val) { in __regmap_init()
1134 map->defer_caching = true; in __regmap_init()
1135 map->reg_write = _regmap_bus_raw_write; in __regmap_init()
1140 map->range_tree = RB_ROOT; in __regmap_init()
1141 for (i = 0; i < config->num_ranges; i++) { in __regmap_init()
1142 const struct regmap_range_cfg *range_cfg = &config->ranges[i]; in __regmap_init()
1146 if (range_cfg->range_max < range_cfg->range_min) { in __regmap_init()
1147 dev_err(map->dev, "Invalid range %d: %d < %d\n", i, in __regmap_init()
1148 range_cfg->range_max, range_cfg->range_min); in __regmap_init()
1152 if (range_cfg->range_max > map->max_register) { in __regmap_init()
1153 dev_err(map->dev, "Invalid range %d: %d > %d\n", i, in __regmap_init()
1154 range_cfg->range_max, map->max_register); in __regmap_init()
1158 if (range_cfg->selector_reg > map->max_register) { in __regmap_init()
1159 dev_err(map->dev, in __regmap_init()
1160 "Invalid range %d: selector out of map\n", i); in __regmap_init()
1164 if (range_cfg->window_len == 0) { in __regmap_init()
1165 dev_err(map->dev, "Invalid range %d: window_len 0\n", in __regmap_init()
1170 /* Make sure, that this register range has no selector in __regmap_init()
1172 for (j = 0; j < config->num_ranges; j++) { in __regmap_init()
1173 unsigned int sel_reg = config->ranges[j].selector_reg; in __regmap_init()
1174 unsigned int win_min = config->ranges[j].window_start; in __regmap_init()
1176 config->ranges[j].window_len - 1; in __regmap_init()
1178 /* Allow data window inside its own virtual range */ in __regmap_init()
1182 if (range_cfg->range_min <= sel_reg && in __regmap_init()
1183 sel_reg <= range_cfg->range_max) { in __regmap_init()
1184 dev_err(map->dev, in __regmap_init()
1185 "Range %d: selector for %d in window\n", in __regmap_init()
1190 if (!(win_max < range_cfg->range_min || in __regmap_init()
1191 win_min > range_cfg->range_max)) { in __regmap_init()
1192 dev_err(map->dev, in __regmap_init()
1193 "Range %d: window for %d in window\n", in __regmap_init()
1201 ret = -ENOMEM; in __regmap_init()
1205 new->map = map; in __regmap_init()
1206 new->name = range_cfg->name; in __regmap_init()
1207 new->range_min = range_cfg->range_min; in __regmap_init()
1208 new->range_max = range_cfg->range_max; in __regmap_init()
1209 new->selector_reg = range_cfg->selector_reg; in __regmap_init()
1210 new->selector_mask = range_cfg->selector_mask; in __regmap_init()
1211 new->selector_shift = range_cfg->selector_shift; in __regmap_init()
1212 new->window_start = range_cfg->window_start; in __regmap_init()
1213 new->window_len = range_cfg->window_len; in __regmap_init()
1216 dev_err(map->dev, "Failed to add range %d\n", i); in __regmap_init()
1221 if (map->selector_work_buf == NULL) { in __regmap_init()
1222 map->selector_work_buf = in __regmap_init()
1223 kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1224 if (map->selector_work_buf == NULL) { in __regmap_init()
1225 ret = -ENOMEM; in __regmap_init()
1249 kfree(map->work_buf); in __regmap_init()
1251 if (map->hwlock) in __regmap_init()
1252 hwspin_lock_free(map->hwlock); in __regmap_init()
1254 kfree_const(map->name); in __regmap_init()
1268 const struct regmap_bus *bus, in __devm_regmap_init() argument
1278 return ERR_PTR(-ENOMEM); in __devm_regmap_init()
1280 regmap = __regmap_init(dev, bus, bus_context, config, in __devm_regmap_init()
1296 rm_field->regmap = regmap; in regmap_field_init()
1297 rm_field->reg = reg_field.reg; in regmap_field_init()
1298 rm_field->shift = reg_field.lsb; in regmap_field_init()
1299 rm_field->mask = GENMASK(reg_field.msb, reg_field.lsb); in regmap_field_init()
1301 WARN_ONCE(rm_field->mask == 0, "invalid empty mask defined\n"); in regmap_field_init()
1303 rm_field->id_size = reg_field.id_size; in regmap_field_init()
1304 rm_field->id_offset = reg_field.id_offset; in regmap_field_init()
1308 * devm_regmap_field_alloc() - Allocate and initialise a register field.
1324 return ERR_PTR(-ENOMEM); in devm_regmap_field_alloc()
1335 * regmap_field_bulk_alloc() - Allocate and initialise a bulk register field.
1342 * The return value will be an -ENOMEM on error or zero for success.
1356 return -ENOMEM; in regmap_field_bulk_alloc()
1368 * devm_regmap_field_bulk_alloc() - Allocate and initialise a bulk register
1377 * The return value will be an -ENOMEM on error or zero for success.
1392 return -ENOMEM; in devm_regmap_field_bulk_alloc()
1404 * regmap_field_bulk_free() - Free register field allocated using
1416 * devm_regmap_field_bulk_free() - Free a bulk register field allocated using
1424 * will be freed as per device-driver life-cycle.
1434 * devm_regmap_field_free() - Free a register field allocated using
1442 * will be freed as per device-driver life-cyle.
1452 * regmap_field_alloc() - Allocate and initialise a register field.
1467 return ERR_PTR(-ENOMEM); in regmap_field_alloc()
1476 * regmap_field_free() - Free register field allocated using
1488 * regmap_reinit_cache() - Reinitialise the current register cache
1508 map->max_register = config->max_register; in regmap_reinit_cache()
1509 map->writeable_reg = config->writeable_reg; in regmap_reinit_cache()
1510 map->readable_reg = config->readable_reg; in regmap_reinit_cache()
1511 map->volatile_reg = config->volatile_reg; in regmap_reinit_cache()
1512 map->precious_reg = config->precious_reg; in regmap_reinit_cache()
1513 map->writeable_noinc_reg = config->writeable_noinc_reg; in regmap_reinit_cache()
1514 map->readable_noinc_reg = config->readable_noinc_reg; in regmap_reinit_cache()
1515 map->cache_type = config->cache_type; in regmap_reinit_cache()
1523 map->cache_bypass = false; in regmap_reinit_cache()
1524 map->cache_only = false; in regmap_reinit_cache()
1531 * regmap_exit() - Free a previously allocated register map
1542 if (map->bus && map->bus->free_context) in regmap_exit()
1543 map->bus->free_context(map->bus_context); in regmap_exit()
1544 kfree(map->work_buf); in regmap_exit()
1545 while (!list_empty(&map->async_free)) { in regmap_exit()
1546 async = list_first_entry_or_null(&map->async_free, in regmap_exit()
1549 list_del(&async->list); in regmap_exit()
1550 kfree(async->work_buf); in regmap_exit()
1553 if (map->hwlock) in regmap_exit()
1554 hwspin_lock_free(map->hwlock); in regmap_exit()
1555 if (map->lock == regmap_lock_mutex) in regmap_exit()
1556 mutex_destroy(&map->mutex); in regmap_exit()
1557 kfree_const(map->name); in regmap_exit()
1558 kfree(map->patch); in regmap_exit()
1559 if (map->bus && map->bus->free_on_exit) in regmap_exit()
1560 kfree(map->bus); in regmap_exit()
1575 return !strcmp((*r)->name, data); in dev_get_regmap_match()
1581 * dev_get_regmap() - Obtain the regmap (if any) for a device
1604 * regmap_get_device() - Obtain the device from a regmap
1612 return map->dev; in regmap_get_device()
1617 struct regmap_range_node *range, in _regmap_select_page() argument
1626 win_offset = (*reg - range->range_min) % range->window_len; in _regmap_select_page()
1627 win_page = (*reg - range->range_min) / range->window_len; in _regmap_select_page()
1630 /* Bulk write shouldn't cross range boundary */ in _regmap_select_page()
1631 if (*reg + val_num - 1 > range->range_max) in _regmap_select_page()
1632 return -EINVAL; in _regmap_select_page()
1635 if (val_num > range->window_len - win_offset) in _regmap_select_page()
1636 return -EINVAL; in _regmap_select_page()
1643 range->window_start + win_offset != range->selector_reg) { in _regmap_select_page()
1645 orig_work_buf = map->work_buf; in _regmap_select_page()
1646 map->work_buf = map->selector_work_buf; in _regmap_select_page()
1648 ret = _regmap_update_bits(map, range->selector_reg, in _regmap_select_page()
1649 range->selector_mask, in _regmap_select_page()
1650 win_page << range->selector_shift, in _regmap_select_page()
1653 map->work_buf = orig_work_buf; in _regmap_select_page()
1659 *reg = range->window_start + win_offset; in _regmap_select_page()
1670 if (!mask || !map->work_buf) in regmap_set_work_buf_flag_mask()
1673 buf = map->work_buf; in regmap_set_work_buf_flag_mask()
1682 struct regmap_range_node *range; in _regmap_raw_write_impl() local
1684 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_raw_write_impl()
1685 map->format.pad_bytes; in _regmap_raw_write_impl()
1687 int ret = -ENOTSUPP; in _regmap_raw_write_impl()
1691 /* Check for unwritable or noinc registers in range in _regmap_raw_write_impl()
1695 for (i = 0; i < val_len / map->format.val_bytes; i++) { in _regmap_raw_write_impl()
1700 return -EINVAL; in _regmap_raw_write_impl()
1704 if (!map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1706 int val_bytes = map->format.val_bytes; in _regmap_raw_write_impl()
1708 ival = map->format.parse_val(val + (i * val_bytes)); in _regmap_raw_write_impl()
1713 dev_err(map->dev, in _regmap_raw_write_impl()
1719 if (map->cache_only) { in _regmap_raw_write_impl()
1720 map->cache_dirty = true; in _regmap_raw_write_impl()
1725 range = _regmap_range_lookup(map, reg); in _regmap_raw_write_impl()
1726 if (range) { in _regmap_raw_write_impl()
1727 int val_num = val_len / map->format.val_bytes; in _regmap_raw_write_impl()
1728 int win_offset = (reg - range->range_min) % range->window_len; in _regmap_raw_write_impl()
1729 int win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1733 dev_dbg(map->dev, "Writing window %d/%zu\n", in _regmap_raw_write_impl()
1734 win_residue, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1737 map->format.val_bytes, noinc); in _regmap_raw_write_impl()
1742 val_num -= win_residue; in _regmap_raw_write_impl()
1743 val += win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1744 val_len -= win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1746 win_offset = (reg - range->range_min) % in _regmap_raw_write_impl()
1747 range->window_len; in _regmap_raw_write_impl()
1748 win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1751 ret = _regmap_select_page(map, ®, range, noinc ? 1 : val_num); in _regmap_raw_write_impl()
1756 reg += map->reg_base; in _regmap_raw_write_impl()
1757 reg >>= map->format.reg_downshift; in _regmap_raw_write_impl()
1758 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_write_impl()
1759 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_write_impl()
1760 map->write_flag_mask); in _regmap_raw_write_impl()
1767 if (val != work_val && val_len == map->format.val_bytes) { in _regmap_raw_write_impl()
1768 memcpy(work_val, val, map->format.val_bytes); in _regmap_raw_write_impl()
1772 if (map->async && map->bus && map->bus->async_write) { in _regmap_raw_write_impl()
1777 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1778 async = list_first_entry_or_null(&map->async_free, in _regmap_raw_write_impl()
1782 list_del(&async->list); in _regmap_raw_write_impl()
1783 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1786 async = map->bus->async_alloc(); in _regmap_raw_write_impl()
1788 return -ENOMEM; in _regmap_raw_write_impl()
1790 async->work_buf = kzalloc(map->format.buf_size, in _regmap_raw_write_impl()
1792 if (!async->work_buf) { in _regmap_raw_write_impl()
1794 return -ENOMEM; in _regmap_raw_write_impl()
1798 async->map = map; in _regmap_raw_write_impl()
1801 memcpy(async->work_buf, map->work_buf, map->format.pad_bytes + in _regmap_raw_write_impl()
1802 map->format.reg_bytes + map->format.val_bytes); in _regmap_raw_write_impl()
1804 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1805 list_add_tail(&async->list, &map->async_list); in _regmap_raw_write_impl()
1806 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1809 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1810 async->work_buf, in _regmap_raw_write_impl()
1811 map->format.reg_bytes + in _regmap_raw_write_impl()
1812 map->format.pad_bytes, in _regmap_raw_write_impl()
1815 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1816 async->work_buf, in _regmap_raw_write_impl()
1817 map->format.reg_bytes + in _regmap_raw_write_impl()
1818 map->format.pad_bytes + in _regmap_raw_write_impl()
1822 dev_err(map->dev, "Failed to schedule write: %d\n", in _regmap_raw_write_impl()
1825 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1826 list_move(&async->list, &map->async_free); in _regmap_raw_write_impl()
1827 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1833 trace_regmap_hw_write_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1840 ret = map->write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1841 map->format.reg_bytes + in _regmap_raw_write_impl()
1842 map->format.pad_bytes + in _regmap_raw_write_impl()
1844 else if (map->bus && map->bus->gather_write) in _regmap_raw_write_impl()
1845 ret = map->bus->gather_write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1846 map->format.reg_bytes + in _regmap_raw_write_impl()
1847 map->format.pad_bytes, in _regmap_raw_write_impl()
1850 ret = -ENOTSUPP; in _regmap_raw_write_impl()
1853 if (ret == -ENOTSUPP) { in _regmap_raw_write_impl()
1854 len = map->format.reg_bytes + map->format.pad_bytes + val_len; in _regmap_raw_write_impl()
1857 return -ENOMEM; in _regmap_raw_write_impl()
1859 memcpy(buf, map->work_buf, map->format.reg_bytes); in _regmap_raw_write_impl()
1860 memcpy(buf + map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_write_impl()
1862 ret = map->write(map->bus_context, buf, len); in _regmap_raw_write_impl()
1865 } else if (ret != 0 && !map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1867 * thus call map->cache_ops->drop() directly in _regmap_raw_write_impl()
1869 if (map->cache_ops && map->cache_ops->drop) in _regmap_raw_write_impl()
1870 map->cache_ops->drop(map, reg, reg + 1); in _regmap_raw_write_impl()
1873 trace_regmap_hw_write_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1879 * regmap_can_raw_write - Test if regmap_raw_write() is supported
1885 return map->write && map->format.format_val && map->format.format_reg; in regmap_can_raw_write()
1890 * regmap_get_raw_read_max - Get the maximum size we can read
1896 return map->max_raw_read; in regmap_get_raw_read_max()
1901 * regmap_get_raw_write_max - Get the maximum size we can read
1907 return map->max_raw_write; in regmap_get_raw_write_max()
1915 struct regmap_range_node *range; in _regmap_bus_formatted_write() local
1918 WARN_ON(!map->format.format_write); in _regmap_bus_formatted_write()
1920 range = _regmap_range_lookup(map, reg); in _regmap_bus_formatted_write()
1921 if (range) { in _regmap_bus_formatted_write()
1922 ret = _regmap_select_page(map, ®, range, 1); in _regmap_bus_formatted_write()
1927 reg += map->reg_base; in _regmap_bus_formatted_write()
1928 reg >>= map->format.reg_downshift; in _regmap_bus_formatted_write()
1929 map->format.format_write(map, reg, val); in _regmap_bus_formatted_write()
1933 ret = map->write(map->bus_context, map->work_buf, map->format.buf_size); in _regmap_bus_formatted_write()
1945 return map->bus->reg_write(map->bus_context, reg, val); in _regmap_bus_reg_write()
1953 WARN_ON(!map->format.format_val); in _regmap_bus_raw_write()
1955 map->format.format_val(map->work_buf + map->format.reg_bytes in _regmap_bus_raw_write()
1956 + map->format.pad_bytes, val, 0); in _regmap_bus_raw_write()
1958 map->work_buf + in _regmap_bus_raw_write()
1959 map->format.reg_bytes + in _regmap_bus_raw_write()
1960 map->format.pad_bytes, in _regmap_bus_raw_write()
1961 map->format.val_bytes, in _regmap_bus_raw_write()
1967 return (map->bus || (!map->bus && map->read)) ? map : map->bus_context; in _regmap_map_get_context()
1977 return -EIO; in _regmap_write()
1979 if (!map->cache_bypass && !map->defer_caching) { in _regmap_write()
1983 if (map->cache_only) { in _regmap_write()
1984 map->cache_dirty = true; in _regmap_write()
1989 ret = map->reg_write(context, reg, val); in _regmap_write()
1992 dev_info(map->dev, "%x <= %x\n", reg, val); in _regmap_write()
2001 * regmap_write() - Write a value to a single register
2014 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write()
2015 return -EINVAL; in regmap_write()
2017 map->lock(map->lock_arg); in regmap_write()
2021 map->unlock(map->lock_arg); in regmap_write()
2028 * regmap_write_async() - Write a value to a single register asynchronously
2041 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write_async()
2042 return -EINVAL; in regmap_write_async()
2044 map->lock(map->lock_arg); in regmap_write_async()
2046 map->async = true; in regmap_write_async()
2050 map->async = false; in regmap_write_async()
2052 map->unlock(map->lock_arg); in regmap_write_async()
2061 size_t val_bytes = map->format.val_bytes; in _regmap_raw_write()
2068 return -EINVAL; in _regmap_raw_write()
2070 if (map->use_single_write) in _regmap_raw_write()
2072 else if (map->max_raw_write && val_len > map->max_raw_write) in _regmap_raw_write()
2073 chunk_regs = map->max_raw_write / val_bytes; in _regmap_raw_write()
2086 val_len -= chunk_bytes; in _regmap_raw_write()
2097 * regmap_raw_write() - Write raw values to one or more registers
2118 return -EINVAL; in regmap_raw_write()
2119 if (val_len % map->format.val_bytes) in regmap_raw_write()
2120 return -EINVAL; in regmap_raw_write()
2122 map->lock(map->lock_arg); in regmap_raw_write()
2126 map->unlock(map->lock_arg); in regmap_raw_write()
2135 size_t val_bytes = map->format.val_bytes; in regmap_noinc_readwrite()
2151 lastval = (unsigned int)u8p[val_count - 1]; in regmap_noinc_readwrite()
2156 lastval = (unsigned int)u16p[val_count - 1]; in regmap_noinc_readwrite()
2161 lastval = (unsigned int)u32p[val_count - 1]; in regmap_noinc_readwrite()
2167 lastval = (unsigned int)u64p[val_count - 1]; in regmap_noinc_readwrite()
2171 return -EINVAL; in regmap_noinc_readwrite()
2180 if (!map->cache_bypass && !map->defer_caching) { in regmap_noinc_readwrite()
2184 if (map->cache_only) { in regmap_noinc_readwrite()
2185 map->cache_dirty = true; in regmap_noinc_readwrite()
2189 ret = map->bus->reg_noinc_write(map->bus_context, reg, val, val_count); in regmap_noinc_readwrite()
2191 ret = map->bus->reg_noinc_read(map->bus_context, reg, val, val_count); in regmap_noinc_readwrite()
2195 dev_info(map->dev, "%x %s [", reg, write ? "<=" : "=>"); in regmap_noinc_readwrite()
2215 if (i == (val_count - 1)) in regmap_noinc_readwrite()
2234 * The regmap API usually assumes that bulk bus write operations will write a
2235 * range of registers. Some devices have certain registers for which a write
2252 if (!map->write && !(map->bus && map->bus->reg_noinc_write)) in regmap_noinc_write()
2253 return -EINVAL; in regmap_noinc_write()
2254 if (val_len % map->format.val_bytes) in regmap_noinc_write()
2255 return -EINVAL; in regmap_noinc_write()
2256 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_write()
2257 return -EINVAL; in regmap_noinc_write()
2259 return -EINVAL; in regmap_noinc_write()
2261 map->lock(map->lock_arg); in regmap_noinc_write()
2264 ret = -EINVAL; in regmap_noinc_write()
2272 if (map->bus->reg_noinc_write) { in regmap_noinc_write()
2278 if (map->max_raw_write && map->max_raw_write < val_len) in regmap_noinc_write()
2279 write_len = map->max_raw_write; in regmap_noinc_write()
2286 val_len -= write_len; in regmap_noinc_write()
2290 map->unlock(map->lock_arg); in regmap_noinc_write()
2296 * regmap_field_update_bits_base() - Perform a read/modify/write cycle a
2316 mask = (mask << field->shift) & field->mask; in regmap_field_update_bits_base()
2318 return regmap_update_bits_base(field->regmap, field->reg, in regmap_field_update_bits_base()
2319 mask, val << field->shift, in regmap_field_update_bits_base()
2325 * regmap_field_test_bits() - Check if all specified bits are set in a
2331 * Returns -1 if the underlying regmap_field_read() fails, 0 if at least one of the
2347 * regmap_fields_update_bits_base() - Perform a read/modify/write cycle a
2365 if (id >= field->id_size) in regmap_fields_update_bits_base()
2366 return -EINVAL; in regmap_fields_update_bits_base()
2368 mask = (mask << field->shift) & field->mask; in regmap_fields_update_bits_base()
2370 return regmap_update_bits_base(field->regmap, in regmap_fields_update_bits_base()
2371 field->reg + (field->id_offset * id), in regmap_fields_update_bits_base()
2372 mask, val << field->shift, in regmap_fields_update_bits_base()
2378 * regmap_bulk_write() - Write multiple registers to the device
2395 size_t val_bytes = map->format.val_bytes; in regmap_bulk_write()
2397 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_write()
2398 return -EINVAL; in regmap_bulk_write()
2404 if (!map->write || !map->format.parse_inplace) { in regmap_bulk_write()
2405 map->lock(map->lock_arg); in regmap_bulk_write()
2425 ret = -EINVAL; in regmap_bulk_write()
2436 map->unlock(map->lock_arg); in regmap_bulk_write()
2440 wval = kmemdup(val, val_count * val_bytes, map->alloc_flags); in regmap_bulk_write()
2442 return -ENOMEM; in regmap_bulk_write()
2445 map->format.parse_inplace(wval + i); in regmap_bulk_write()
2474 size_t val_bytes = map->format.val_bytes; in _regmap_raw_multi_reg_write()
2475 size_t reg_bytes = map->format.reg_bytes; in _regmap_raw_multi_reg_write()
2476 size_t pad_bytes = map->format.pad_bytes; in _regmap_raw_multi_reg_write()
2481 return -EINVAL; in _regmap_raw_multi_reg_write()
2485 return -ENOMEM; in _regmap_raw_multi_reg_write()
2495 reg += map->reg_base; in _regmap_raw_multi_reg_write()
2496 reg >>= map->format.reg_downshift; in _regmap_raw_multi_reg_write()
2497 map->format.format_reg(u8, reg, map->reg_shift); in _regmap_raw_multi_reg_write()
2499 map->format.format_val(u8, val, 0); in _regmap_raw_multi_reg_write()
2503 *u8 |= map->write_flag_mask; in _regmap_raw_multi_reg_write()
2505 ret = map->write(map->bus_context, buf, len); in _regmap_raw_multi_reg_write()
2518 struct regmap_range_node *range) in _regmap_register_page() argument
2520 unsigned int win_page = (reg - range->range_min) / range->window_len; in _regmap_register_page()
2543 struct regmap_range_node *range; in _regmap_range_multi_paged_reg_write() local
2545 range = _regmap_range_lookup(map, reg); in _regmap_range_multi_paged_reg_write()
2546 if (range) { in _regmap_range_multi_paged_reg_write()
2548 range); in _regmap_range_multi_paged_reg_write()
2579 if (map->can_sleep) in _regmap_range_multi_paged_reg_write()
2591 range, 1); in _regmap_range_multi_paged_reg_write()
2613 if (!map->can_multi_write) { in _regmap_multi_reg_write()
2620 if (map->can_sleep) in _regmap_multi_reg_write()
2629 if (!map->format.parse_inplace) in _regmap_multi_reg_write()
2630 return -EINVAL; in _regmap_multi_reg_write()
2632 if (map->writeable_reg) in _regmap_multi_reg_write()
2635 if (!map->writeable_reg(map->dev, reg)) in _regmap_multi_reg_write()
2636 return -EINVAL; in _regmap_multi_reg_write()
2637 if (!IS_ALIGNED(reg, map->reg_stride)) in _regmap_multi_reg_write()
2638 return -EINVAL; in _regmap_multi_reg_write()
2641 if (!map->cache_bypass) { in _regmap_multi_reg_write()
2647 dev_err(map->dev, in _regmap_multi_reg_write()
2653 if (map->cache_only) { in _regmap_multi_reg_write()
2654 map->cache_dirty = true; in _regmap_multi_reg_write()
2659 WARN_ON(!map->bus); in _regmap_multi_reg_write()
2663 struct regmap_range_node *range; in _regmap_multi_reg_write() local
2668 range = _regmap_range_lookup(map, reg); in _regmap_multi_reg_write()
2669 if (range || regs[i].delay_us) { in _regmap_multi_reg_write()
2674 return -ENOMEM; in _regmap_multi_reg_write()
2686 * regmap_multi_reg_write() - Write multiple registers to the device
2693 * pairs are supplied in any order, possibly not all in a single range.
2696 * target bus as R,V1,V2,V3,..,Vn where successively higher registers are
2698 * the data as R1,V1,R2,V2,..,Rn,Vn on the target bus. The target device
2709 map->lock(map->lock_arg); in regmap_multi_reg_write()
2713 map->unlock(map->lock_arg); in regmap_multi_reg_write()
2720 * regmap_multi_reg_write_bypassed() - Write multiple registers to the
2744 map->lock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2746 bypass = map->cache_bypass; in regmap_multi_reg_write_bypassed()
2747 map->cache_bypass = true; in regmap_multi_reg_write_bypassed()
2751 map->cache_bypass = bypass; in regmap_multi_reg_write_bypassed()
2753 map->unlock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2760 * regmap_raw_write_async() - Write raw values to one or more registers
2773 * If supported by the underlying bus the write will be scheduled
2786 if (val_len % map->format.val_bytes) in regmap_raw_write_async()
2787 return -EINVAL; in regmap_raw_write_async()
2788 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_write_async()
2789 return -EINVAL; in regmap_raw_write_async()
2791 map->lock(map->lock_arg); in regmap_raw_write_async()
2793 map->async = true; in regmap_raw_write_async()
2797 map->async = false; in regmap_raw_write_async()
2799 map->unlock(map->lock_arg); in regmap_raw_write_async()
2808 struct regmap_range_node *range; in _regmap_raw_read() local
2811 if (!map->read) in _regmap_raw_read()
2812 return -EINVAL; in _regmap_raw_read()
2814 range = _regmap_range_lookup(map, reg); in _regmap_raw_read()
2815 if (range) { in _regmap_raw_read()
2816 ret = _regmap_select_page(map, ®, range, in _regmap_raw_read()
2817 noinc ? 1 : val_len / map->format.val_bytes); in _regmap_raw_read()
2822 reg += map->reg_base; in _regmap_raw_read()
2823 reg >>= map->format.reg_downshift; in _regmap_raw_read()
2824 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_read()
2825 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_read()
2826 map->read_flag_mask); in _regmap_raw_read()
2827 trace_regmap_hw_read_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2829 ret = map->read(map->bus_context, map->work_buf, in _regmap_raw_read()
2830 map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_read()
2833 trace_regmap_hw_read_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2843 return map->bus->reg_read(map->bus_context, reg, val); in _regmap_bus_reg_read()
2851 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_bus_read()
2852 map->format.pad_bytes; in _regmap_bus_read()
2854 if (!map->format.parse_val) in _regmap_bus_read()
2855 return -EINVAL; in _regmap_bus_read()
2857 ret = _regmap_raw_read(map, reg, work_val, map->format.val_bytes, false); in _regmap_bus_read()
2859 *val = map->format.parse_val(work_val); in _regmap_bus_read()
2870 if (!map->cache_bypass) { in _regmap_read()
2876 if (map->cache_only) in _regmap_read()
2877 return -EBUSY; in _regmap_read()
2880 return -EIO; in _regmap_read()
2882 ret = map->reg_read(context, reg, val); in _regmap_read()
2885 dev_info(map->dev, "%x => %x\n", reg, *val); in _regmap_read()
2889 if (!map->cache_bypass) in _regmap_read()
2897 * regmap_read() - Read a value from a single register
2910 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_read()
2911 return -EINVAL; in regmap_read()
2913 map->lock(map->lock_arg); in regmap_read()
2917 map->unlock(map->lock_arg); in regmap_read()
2924 * regmap_raw_read() - Read raw data from the device
2937 size_t val_bytes = map->format.val_bytes; in regmap_raw_read()
2942 if (val_len % map->format.val_bytes) in regmap_raw_read()
2943 return -EINVAL; in regmap_raw_read()
2944 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_read()
2945 return -EINVAL; in regmap_raw_read()
2947 return -EINVAL; in regmap_raw_read()
2949 map->lock(map->lock_arg); in regmap_raw_read()
2951 if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || in regmap_raw_read()
2952 map->cache_type == REGCACHE_NONE) { in regmap_raw_read()
2956 if (!map->read) { in regmap_raw_read()
2957 ret = -ENOTSUPP; in regmap_raw_read()
2961 if (map->use_single_read) in regmap_raw_read()
2963 else if (map->max_raw_read && val_len > map->max_raw_read) in regmap_raw_read()
2964 chunk_regs = map->max_raw_read / val_bytes; in regmap_raw_read()
2977 val_len -= chunk_bytes; in regmap_raw_read()
2996 map->format.format_val(val + (i * val_bytes), v, 0); in regmap_raw_read()
3001 map->unlock(map->lock_arg); in regmap_raw_read()
3017 * range of registers. Some devices have certain registers for which a read
3034 if (!map->read) in regmap_noinc_read()
3035 return -ENOTSUPP; in regmap_noinc_read()
3037 if (val_len % map->format.val_bytes) in regmap_noinc_read()
3038 return -EINVAL; in regmap_noinc_read()
3039 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_read()
3040 return -EINVAL; in regmap_noinc_read()
3042 return -EINVAL; in regmap_noinc_read()
3044 map->lock(map->lock_arg); in regmap_noinc_read()
3047 ret = -EINVAL; in regmap_noinc_read()
3052 if (map->bus->reg_noinc_read) { in regmap_noinc_read()
3059 if (map->cache_only) { in regmap_noinc_read()
3060 ret = -EBUSY; in regmap_noinc_read()
3068 if (map->max_raw_read && map->max_raw_read < val_len) in regmap_noinc_read()
3069 read_len = map->max_raw_read; in regmap_noinc_read()
3076 val_len -= read_len; in regmap_noinc_read()
3080 map->unlock(map->lock_arg); in regmap_noinc_read()
3098 ret = regmap_read(field->regmap, field->reg, ®_val); in regmap_field_read()
3102 reg_val &= field->mask; in regmap_field_read()
3103 reg_val >>= field->shift; in regmap_field_read()
3111 * regmap_fields_read() - Read a value to a single register field with port ID
3126 if (id >= field->id_size) in regmap_fields_read()
3127 return -EINVAL; in regmap_fields_read()
3129 ret = regmap_read(field->regmap, in regmap_fields_read()
3130 field->reg + (field->id_offset * id), in regmap_fields_read()
3135 reg_val &= field->mask; in regmap_fields_read()
3136 reg_val >>= field->shift; in regmap_fields_read()
3144 * regmap_bulk_read() - Read multiple registers from the device
3158 size_t val_bytes = map->format.val_bytes; in regmap_bulk_read()
3161 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_read()
3162 return -EINVAL; in regmap_bulk_read()
3164 return -EINVAL; in regmap_bulk_read()
3166 if (map->read && map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) { in regmap_bulk_read()
3172 map->format.parse_inplace(val + i); in regmap_bulk_read()
3181 map->lock(map->lock_arg); in regmap_bulk_read()
3191 switch (map->format.val_bytes) { in regmap_bulk_read()
3207 ret = -EINVAL; in regmap_bulk_read()
3213 map->unlock(map->lock_arg); in regmap_bulk_read()
3233 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()
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 ? 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()
3492 if (!map->format.parse_val) in regmap_parse_val()
3493 return -EINVAL; in regmap_parse_val()
3495 *val = map->format.parse_val(buf); in regmap_parse_val()