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()
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()
601 static enum regmap_endian regmap_get_reg_endian(const struct regmap_bus *bus, in regmap_get_reg_endian() argument
607 endian = config->reg_format_endian; in regmap_get_reg_endian()
609 /* If the regmap config specified a non-default value, use that */ in regmap_get_reg_endian()
613 /* Retrieve the endianness specification from the bus config */ in regmap_get_reg_endian()
614 if (bus && bus->reg_format_endian_default) in regmap_get_reg_endian()
615 endian = bus->reg_format_endian_default; in regmap_get_reg_endian()
617 /* If the bus specified a non-default value, use that */ in regmap_get_reg_endian()
626 const struct regmap_bus *bus, in regmap_get_val_endian() argument
633 endian = config->val_format_endian; in regmap_get_val_endian()
635 /* If the regmap config specified a non-default value, use that */ in regmap_get_val_endian()
640 if (fwnode_property_read_bool(fwnode, "big-endian")) in regmap_get_val_endian()
642 else if (fwnode_property_read_bool(fwnode, "little-endian")) in regmap_get_val_endian()
644 else if (fwnode_property_read_bool(fwnode, "native-endian")) in regmap_get_val_endian()
651 /* Retrieve the endianness specification from the bus config */ in regmap_get_val_endian()
652 if (bus && bus->val_format_endian_default) in regmap_get_val_endian()
653 endian = bus->val_format_endian_default; in regmap_get_val_endian()
655 /* If the bus specified a non-default value, use that */ in regmap_get_val_endian()
665 const struct regmap_bus *bus, in __regmap_init() argument
672 int ret = -EINVAL; in __regmap_init()
681 ret = -ENOMEM; in __regmap_init()
689 ret = -EINVAL; /* Later error paths rely on this */ in __regmap_init()
691 if (config->disable_locking) { in __regmap_init()
692 map->lock = map->unlock = regmap_lock_unlock_none; in __regmap_init()
693 map->can_sleep = config->can_sleep; in __regmap_init()
695 } else if (config->lock && config->unlock) { in __regmap_init()
696 map->lock = config->lock; in __regmap_init()
697 map->unlock = config->unlock; in __regmap_init()
698 map->lock_arg = config->lock_arg; in __regmap_init()
699 map->can_sleep = config->can_sleep; in __regmap_init()
700 } else if (config->use_hwlock) { in __regmap_init()
701 map->hwlock = hwspin_lock_request_specific(config->hwlock_id); in __regmap_init()
702 if (!map->hwlock) { in __regmap_init()
703 ret = -ENXIO; in __regmap_init()
707 switch (config->hwlock_mode) { in __regmap_init()
709 map->lock = regmap_lock_hwlock_irqsave; in __regmap_init()
710 map->unlock = regmap_unlock_hwlock_irqrestore; in __regmap_init()
713 map->lock = regmap_lock_hwlock_irq; in __regmap_init()
714 map->unlock = regmap_unlock_hwlock_irq; in __regmap_init()
717 map->lock = regmap_lock_hwlock; in __regmap_init()
718 map->unlock = regmap_unlock_hwlock; in __regmap_init()
722 map->lock_arg = map; in __regmap_init()
724 if ((bus && bus->fast_io) || in __regmap_init()
725 config->fast_io) { in __regmap_init()
726 if (config->use_raw_spinlock) { in __regmap_init()
727 raw_spin_lock_init(&map->raw_spinlock); in __regmap_init()
728 map->lock = regmap_lock_raw_spinlock; in __regmap_init()
729 map->unlock = regmap_unlock_raw_spinlock; in __regmap_init()
730 lockdep_set_class_and_name(&map->raw_spinlock, in __regmap_init()
733 spin_lock_init(&map->spinlock); in __regmap_init()
734 map->lock = regmap_lock_spinlock; in __regmap_init()
735 map->unlock = regmap_unlock_spinlock; in __regmap_init()
736 lockdep_set_class_and_name(&map->spinlock, in __regmap_init()
740 mutex_init(&map->mutex); in __regmap_init()
741 map->lock = regmap_lock_mutex; in __regmap_init()
742 map->unlock = regmap_unlock_mutex; in __regmap_init()
743 map->can_sleep = true; in __regmap_init()
744 lockdep_set_class_and_name(&map->mutex, in __regmap_init()
747 map->lock_arg = map; in __regmap_init()
751 * When we write in fast-paths with regmap_bulk_write() don't allocate in __regmap_init()
754 if ((bus && bus->fast_io) || config->fast_io) in __regmap_init()
755 map->alloc_flags = GFP_ATOMIC; in __regmap_init()
757 map->alloc_flags = GFP_KERNEL; in __regmap_init()
759 map->reg_base = config->reg_base; in __regmap_init()
761 map->format.reg_bytes = DIV_ROUND_UP(config->reg_bits, 8); in __regmap_init()
762 map->format.pad_bytes = config->pad_bits / 8; in __regmap_init()
763 map->format.reg_shift = config->reg_shift; in __regmap_init()
764 map->format.val_bytes = DIV_ROUND_UP(config->val_bits, 8); in __regmap_init()
765 map->format.buf_size = DIV_ROUND_UP(config->reg_bits + in __regmap_init()
766 config->val_bits + config->pad_bits, 8); in __regmap_init()
767 map->reg_shift = config->pad_bits % 8; in __regmap_init()
768 if (config->reg_stride) in __regmap_init()
769 map->reg_stride = config->reg_stride; in __regmap_init()
771 map->reg_stride = 1; in __regmap_init()
772 if (is_power_of_2(map->reg_stride)) in __regmap_init()
773 map->reg_stride_order = ilog2(map->reg_stride); in __regmap_init()
775 map->reg_stride_order = -1; in __regmap_init()
776 map->use_single_read = config->use_single_read || !(config->read || (bus && bus->read)); in __regmap_init()
777 map->use_single_write = config->use_single_write || !(config->write || (bus && bus->write)); in __regmap_init()
778 map->can_multi_write = config->can_multi_write && (config->write || (bus && bus->write)); in __regmap_init()
779 if (bus) { in __regmap_init()
780 map->max_raw_read = bus->max_raw_read; in __regmap_init()
781 map->max_raw_write = bus->max_raw_write; in __regmap_init()
782 } else if (config->max_raw_read && config->max_raw_write) { in __regmap_init()
783 map->max_raw_read = config->max_raw_read; in __regmap_init()
784 map->max_raw_write = config->max_raw_write; in __regmap_init()
786 map->dev = dev; in __regmap_init()
787 map->bus = bus; in __regmap_init()
788 map->bus_context = bus_context; in __regmap_init()
789 map->max_register = config->max_register; in __regmap_init()
790 map->wr_table = config->wr_table; in __regmap_init()
791 map->rd_table = config->rd_table; in __regmap_init()
792 map->volatile_table = config->volatile_table; in __regmap_init()
793 map->precious_table = config->precious_table; in __regmap_init()
794 map->wr_noinc_table = config->wr_noinc_table; in __regmap_init()
795 map->rd_noinc_table = config->rd_noinc_table; in __regmap_init()
796 map->writeable_reg = config->writeable_reg; in __regmap_init()
797 map->readable_reg = config->readable_reg; in __regmap_init()
798 map->volatile_reg = config->volatile_reg; in __regmap_init()
799 map->precious_reg = config->precious_reg; in __regmap_init()
800 map->writeable_noinc_reg = config->writeable_noinc_reg; in __regmap_init()
801 map->readable_noinc_reg = config->readable_noinc_reg; in __regmap_init()
802 map->cache_type = config->cache_type; in __regmap_init()
804 spin_lock_init(&map->async_lock); in __regmap_init()
805 INIT_LIST_HEAD(&map->async_list); in __regmap_init()
806 INIT_LIST_HEAD(&map->async_free); in __regmap_init()
807 init_waitqueue_head(&map->async_waitq); in __regmap_init()
809 if (config->read_flag_mask || in __regmap_init()
810 config->write_flag_mask || in __regmap_init()
811 config->zero_flag_mask) { in __regmap_init()
812 map->read_flag_mask = config->read_flag_mask; in __regmap_init()
813 map->write_flag_mask = config->write_flag_mask; in __regmap_init()
814 } else if (bus) { in __regmap_init()
815 map->read_flag_mask = bus->read_flag_mask; in __regmap_init()
818 if (config && config->read && config->write) { in __regmap_init()
819 map->reg_read = _regmap_bus_read; in __regmap_init()
820 if (config->reg_update_bits) in __regmap_init()
821 map->reg_update_bits = config->reg_update_bits; in __regmap_init()
824 map->read = config->read; in __regmap_init()
825 map->write = config->write; in __regmap_init()
829 } else if (!bus) { in __regmap_init()
830 map->reg_read = config->reg_read; in __regmap_init()
831 map->reg_write = config->reg_write; in __regmap_init()
832 map->reg_update_bits = config->reg_update_bits; in __regmap_init()
834 map->defer_caching = false; in __regmap_init()
836 } else if (!bus->read || !bus->write) { in __regmap_init()
837 map->reg_read = _regmap_bus_reg_read; in __regmap_init()
838 map->reg_write = _regmap_bus_reg_write; in __regmap_init()
839 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
841 map->defer_caching = false; in __regmap_init()
844 map->reg_read = _regmap_bus_read; in __regmap_init()
845 map->reg_update_bits = bus->reg_update_bits; in __regmap_init()
847 map->read = bus->read; in __regmap_init()
848 map->write = bus->write; in __regmap_init()
850 reg_endian = regmap_get_reg_endian(bus, config); in __regmap_init()
851 val_endian = regmap_get_val_endian(dev, bus, config); in __regmap_init()
854 switch (config->reg_bits + map->reg_shift) { in __regmap_init()
856 switch (config->val_bits) { in __regmap_init()
858 map->format.format_write = regmap_format_2_6_write; in __regmap_init()
866 switch (config->val_bits) { in __regmap_init()
868 map->format.format_write = regmap_format_4_12_write; in __regmap_init()
876 switch (config->val_bits) { in __regmap_init()
878 map->format.format_write = regmap_format_7_9_write; in __regmap_init()
881 map->format.format_write = regmap_format_7_17_write; in __regmap_init()
889 switch (config->val_bits) { in __regmap_init()
891 map->format.format_write = regmap_format_10_14_write; in __regmap_init()
899 switch (config->val_bits) { in __regmap_init()
901 map->format.format_write = regmap_format_12_20_write; in __regmap_init()
909 map->format.format_reg = regmap_format_8; in __regmap_init()
915 map->format.format_reg = regmap_format_16_be; in __regmap_init()
918 map->format.format_reg = regmap_format_16_le; in __regmap_init()
921 map->format.format_reg = regmap_format_16_native; in __regmap_init()
931 map->format.format_reg = regmap_format_24_be; in __regmap_init()
941 map->format.format_reg = regmap_format_32_be; in __regmap_init()
944 map->format.format_reg = regmap_format_32_le; in __regmap_init()
947 map->format.format_reg = regmap_format_32_native; in __regmap_init()
959 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
961 switch (config->val_bits) { in __regmap_init()
963 map->format.format_val = regmap_format_8; in __regmap_init()
964 map->format.parse_val = regmap_parse_8; in __regmap_init()
965 map->format.parse_inplace = regmap_parse_inplace_noop; in __regmap_init()
970 map->format.format_val = regmap_format_16_be; in __regmap_init()
971 map->format.parse_val = regmap_parse_16_be; in __regmap_init()
972 map->format.parse_inplace = regmap_parse_16_be_inplace; in __regmap_init()
975 map->format.format_val = regmap_format_16_le; in __regmap_init()
976 map->format.parse_val = regmap_parse_16_le; in __regmap_init()
977 map->format.parse_inplace = regmap_parse_16_le_inplace; in __regmap_init()
980 map->format.format_val = regmap_format_16_native; in __regmap_init()
981 map->format.parse_val = regmap_parse_16_native; in __regmap_init()
990 map->format.format_val = regmap_format_24_be; in __regmap_init()
991 map->format.parse_val = regmap_parse_24_be; in __regmap_init()
1000 map->format.format_val = regmap_format_32_be; in __regmap_init()
1001 map->format.parse_val = regmap_parse_32_be; in __regmap_init()
1002 map->format.parse_inplace = regmap_parse_32_be_inplace; in __regmap_init()
1005 map->format.format_val = regmap_format_32_le; in __regmap_init()
1006 map->format.parse_val = regmap_parse_32_le; in __regmap_init()
1007 map->format.parse_inplace = regmap_parse_32_le_inplace; in __regmap_init()
1010 map->format.format_val = regmap_format_32_native; in __regmap_init()
1011 map->format.parse_val = regmap_parse_32_native; in __regmap_init()
1019 if (map->format.format_write) { in __regmap_init()
1023 map->use_single_write = true; in __regmap_init()
1026 if (!map->format.format_write && in __regmap_init()
1027 !(map->format.format_reg && map->format.format_val)) in __regmap_init()
1030 map->work_buf = kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1031 if (map->work_buf == NULL) { in __regmap_init()
1032 ret = -ENOMEM; in __regmap_init()
1036 if (map->format.format_write) { in __regmap_init()
1037 map->defer_caching = false; in __regmap_init()
1038 map->reg_write = _regmap_bus_formatted_write; in __regmap_init()
1039 } else if (map->format.format_val) { in __regmap_init()
1040 map->defer_caching = true; in __regmap_init()
1041 map->reg_write = _regmap_bus_raw_write; in __regmap_init()
1046 map->range_tree = RB_ROOT; in __regmap_init()
1047 for (i = 0; i < config->num_ranges; i++) { in __regmap_init()
1048 const struct regmap_range_cfg *range_cfg = &config->ranges[i]; in __regmap_init()
1052 if (range_cfg->range_max < range_cfg->range_min) { in __regmap_init()
1053 dev_err(map->dev, "Invalid range %d: %d < %d\n", i, in __regmap_init()
1054 range_cfg->range_max, range_cfg->range_min); in __regmap_init()
1058 if (range_cfg->range_max > map->max_register) { in __regmap_init()
1059 dev_err(map->dev, "Invalid range %d: %d > %d\n", i, in __regmap_init()
1060 range_cfg->range_max, map->max_register); in __regmap_init()
1064 if (range_cfg->selector_reg > map->max_register) { in __regmap_init()
1065 dev_err(map->dev, in __regmap_init()
1066 "Invalid range %d: selector out of map\n", i); in __regmap_init()
1070 if (range_cfg->window_len == 0) { in __regmap_init()
1071 dev_err(map->dev, "Invalid range %d: window_len 0\n", in __regmap_init()
1076 /* Make sure, that this register range has no selector in __regmap_init()
1078 for (j = 0; j < config->num_ranges; j++) { in __regmap_init()
1079 unsigned int sel_reg = config->ranges[j].selector_reg; in __regmap_init()
1080 unsigned int win_min = config->ranges[j].window_start; in __regmap_init()
1082 config->ranges[j].window_len - 1; in __regmap_init()
1084 /* Allow data window inside its own virtual range */ in __regmap_init()
1088 if (range_cfg->range_min <= sel_reg && in __regmap_init()
1089 sel_reg <= range_cfg->range_max) { in __regmap_init()
1090 dev_err(map->dev, in __regmap_init()
1091 "Range %d: selector for %d in window\n", in __regmap_init()
1096 if (!(win_max < range_cfg->range_min || in __regmap_init()
1097 win_min > range_cfg->range_max)) { in __regmap_init()
1098 dev_err(map->dev, in __regmap_init()
1099 "Range %d: window for %d in window\n", in __regmap_init()
1107 ret = -ENOMEM; in __regmap_init()
1111 new->map = map; in __regmap_init()
1112 new->name = range_cfg->name; in __regmap_init()
1113 new->range_min = range_cfg->range_min; in __regmap_init()
1114 new->range_max = range_cfg->range_max; in __regmap_init()
1115 new->selector_reg = range_cfg->selector_reg; in __regmap_init()
1116 new->selector_mask = range_cfg->selector_mask; in __regmap_init()
1117 new->selector_shift = range_cfg->selector_shift; in __regmap_init()
1118 new->window_start = range_cfg->window_start; in __regmap_init()
1119 new->window_len = range_cfg->window_len; in __regmap_init()
1122 dev_err(map->dev, "Failed to add range %d\n", i); in __regmap_init()
1127 if (map->selector_work_buf == NULL) { in __regmap_init()
1128 map->selector_work_buf = in __regmap_init()
1129 kzalloc(map->format.buf_size, GFP_KERNEL); in __regmap_init()
1130 if (map->selector_work_buf == NULL) { in __regmap_init()
1131 ret = -ENOMEM; in __regmap_init()
1155 kfree(map->work_buf); in __regmap_init()
1157 if (map->hwlock) in __regmap_init()
1158 hwspin_lock_free(map->hwlock); in __regmap_init()
1160 kfree_const(map->name); in __regmap_init()
1174 const struct regmap_bus *bus, in __devm_regmap_init() argument
1184 return ERR_PTR(-ENOMEM); in __devm_regmap_init()
1186 regmap = __regmap_init(dev, bus, bus_context, config, in __devm_regmap_init()
1202 rm_field->regmap = regmap; in regmap_field_init()
1203 rm_field->reg = reg_field.reg; in regmap_field_init()
1204 rm_field->shift = reg_field.lsb; in regmap_field_init()
1205 rm_field->mask = GENMASK(reg_field.msb, reg_field.lsb); in regmap_field_init()
1207 WARN_ONCE(rm_field->mask == 0, "invalid empty mask defined\n"); in regmap_field_init()
1209 rm_field->id_size = reg_field.id_size; in regmap_field_init()
1210 rm_field->id_offset = reg_field.id_offset; in regmap_field_init()
1214 * devm_regmap_field_alloc() - Allocate and initialise a register field.
1230 return ERR_PTR(-ENOMEM); in devm_regmap_field_alloc()
1241 * regmap_field_bulk_alloc() - Allocate and initialise a bulk register field.
1248 * The return value will be an -ENOMEM on error or zero for success.
1262 return -ENOMEM; in regmap_field_bulk_alloc()
1274 * devm_regmap_field_bulk_alloc() - Allocate and initialise a bulk register
1283 * The return value will be an -ENOMEM on error or zero for success.
1298 return -ENOMEM; in devm_regmap_field_bulk_alloc()
1310 * regmap_field_bulk_free() - Free register field allocated using
1322 * devm_regmap_field_bulk_free() - Free a bulk register field allocated using
1330 * will be freed as per device-driver life-cycle.
1340 * devm_regmap_field_free() - Free a register field allocated using
1348 * will be freed as per device-driver life-cyle.
1358 * regmap_field_alloc() - Allocate and initialise a register field.
1373 return ERR_PTR(-ENOMEM); in regmap_field_alloc()
1382 * regmap_field_free() - Free register field allocated using
1394 * regmap_reinit_cache() - Reinitialise the current register cache
1414 map->max_register = config->max_register; in regmap_reinit_cache()
1415 map->writeable_reg = config->writeable_reg; in regmap_reinit_cache()
1416 map->readable_reg = config->readable_reg; in regmap_reinit_cache()
1417 map->volatile_reg = config->volatile_reg; in regmap_reinit_cache()
1418 map->precious_reg = config->precious_reg; in regmap_reinit_cache()
1419 map->writeable_noinc_reg = config->writeable_noinc_reg; in regmap_reinit_cache()
1420 map->readable_noinc_reg = config->readable_noinc_reg; in regmap_reinit_cache()
1421 map->cache_type = config->cache_type; in regmap_reinit_cache()
1429 map->cache_bypass = false; in regmap_reinit_cache()
1430 map->cache_only = false; in regmap_reinit_cache()
1437 * regmap_exit() - Free a previously allocated register map
1448 if (map->bus && map->bus->free_context) in regmap_exit()
1449 map->bus->free_context(map->bus_context); in regmap_exit()
1450 kfree(map->work_buf); in regmap_exit()
1451 while (!list_empty(&map->async_free)) { in regmap_exit()
1452 async = list_first_entry_or_null(&map->async_free, in regmap_exit()
1455 list_del(&async->list); in regmap_exit()
1456 kfree(async->work_buf); in regmap_exit()
1459 if (map->hwlock) in regmap_exit()
1460 hwspin_lock_free(map->hwlock); in regmap_exit()
1461 if (map->lock == regmap_lock_mutex) in regmap_exit()
1462 mutex_destroy(&map->mutex); in regmap_exit()
1463 kfree_const(map->name); in regmap_exit()
1464 kfree(map->patch); in regmap_exit()
1465 if (map->bus && map->bus->free_on_exit) in regmap_exit()
1466 kfree(map->bus); in regmap_exit()
1481 return (*r)->name && !strcmp((*r)->name, data); in dev_get_regmap_match()
1487 * dev_get_regmap() - Obtain the regmap (if any) for a device
1510 * regmap_get_device() - Obtain the device from a regmap
1518 return map->dev; in regmap_get_device()
1523 struct regmap_range_node *range, in _regmap_select_page() argument
1532 win_offset = (*reg - range->range_min) % range->window_len; in _regmap_select_page()
1533 win_page = (*reg - range->range_min) / range->window_len; in _regmap_select_page()
1536 /* Bulk write shouldn't cross range boundary */ in _regmap_select_page()
1537 if (*reg + val_num - 1 > range->range_max) in _regmap_select_page()
1538 return -EINVAL; in _regmap_select_page()
1541 if (val_num > range->window_len - win_offset) in _regmap_select_page()
1542 return -EINVAL; in _regmap_select_page()
1549 range->window_start + win_offset != range->selector_reg) { in _regmap_select_page()
1551 orig_work_buf = map->work_buf; in _regmap_select_page()
1552 map->work_buf = map->selector_work_buf; in _regmap_select_page()
1554 ret = _regmap_update_bits(map, range->selector_reg, in _regmap_select_page()
1555 range->selector_mask, in _regmap_select_page()
1556 win_page << range->selector_shift, in _regmap_select_page()
1559 map->work_buf = orig_work_buf; in _regmap_select_page()
1565 *reg = range->window_start + win_offset; in _regmap_select_page()
1576 if (!mask || !map->work_buf) in regmap_set_work_buf_flag_mask()
1579 buf = map->work_buf; in regmap_set_work_buf_flag_mask()
1587 reg += map->reg_base; in regmap_reg_addr()
1589 if (map->format.reg_shift > 0) in regmap_reg_addr()
1590 reg >>= map->format.reg_shift; in regmap_reg_addr()
1591 else if (map->format.reg_shift < 0) in regmap_reg_addr()
1592 reg <<= -(map->format.reg_shift); in regmap_reg_addr()
1600 struct regmap_range_node *range; in _regmap_raw_write_impl() local
1602 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_raw_write_impl()
1603 map->format.pad_bytes; in _regmap_raw_write_impl()
1605 int ret = -ENOTSUPP; in _regmap_raw_write_impl()
1609 /* Check for unwritable or noinc registers in range in _regmap_raw_write_impl()
1613 for (i = 0; i < val_len / map->format.val_bytes; i++) { in _regmap_raw_write_impl()
1618 return -EINVAL; in _regmap_raw_write_impl()
1622 if (!map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1624 int val_bytes = map->format.val_bytes; in _regmap_raw_write_impl()
1627 i = noinc ? val_len - val_bytes : 0; in _regmap_raw_write_impl()
1629 ival = map->format.parse_val(val + i); in _regmap_raw_write_impl()
1633 dev_err(map->dev, in _regmap_raw_write_impl()
1639 if (map->cache_only) { in _regmap_raw_write_impl()
1640 map->cache_dirty = true; in _regmap_raw_write_impl()
1645 range = _regmap_range_lookup(map, reg); in _regmap_raw_write_impl()
1646 if (range) { in _regmap_raw_write_impl()
1647 int val_num = val_len / map->format.val_bytes; in _regmap_raw_write_impl()
1648 int win_offset = (reg - range->range_min) % range->window_len; in _regmap_raw_write_impl()
1649 int win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1653 dev_dbg(map->dev, "Writing window %d/%zu\n", in _regmap_raw_write_impl()
1654 win_residue, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1657 map->format.val_bytes, noinc); in _regmap_raw_write_impl()
1662 val_num -= win_residue; in _regmap_raw_write_impl()
1663 val += win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1664 val_len -= win_residue * map->format.val_bytes; in _regmap_raw_write_impl()
1666 win_offset = (reg - range->range_min) % in _regmap_raw_write_impl()
1667 range->window_len; in _regmap_raw_write_impl()
1668 win_residue = range->window_len - win_offset; in _regmap_raw_write_impl()
1671 ret = _regmap_select_page(map, ®, range, noinc ? 1 : val_num); in _regmap_raw_write_impl()
1677 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_write_impl()
1678 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_write_impl()
1679 map->write_flag_mask); in _regmap_raw_write_impl()
1686 if (val != work_val && val_len == map->format.val_bytes) { in _regmap_raw_write_impl()
1687 memcpy(work_val, val, map->format.val_bytes); in _regmap_raw_write_impl()
1691 if (map->async && map->bus && map->bus->async_write) { in _regmap_raw_write_impl()
1696 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1697 async = list_first_entry_or_null(&map->async_free, in _regmap_raw_write_impl()
1701 list_del(&async->list); in _regmap_raw_write_impl()
1702 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1705 async = map->bus->async_alloc(); in _regmap_raw_write_impl()
1707 return -ENOMEM; in _regmap_raw_write_impl()
1709 async->work_buf = kzalloc(map->format.buf_size, in _regmap_raw_write_impl()
1711 if (!async->work_buf) { in _regmap_raw_write_impl()
1713 return -ENOMEM; in _regmap_raw_write_impl()
1717 async->map = map; in _regmap_raw_write_impl()
1720 memcpy(async->work_buf, map->work_buf, map->format.pad_bytes + in _regmap_raw_write_impl()
1721 map->format.reg_bytes + map->format.val_bytes); in _regmap_raw_write_impl()
1723 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1724 list_add_tail(&async->list, &map->async_list); in _regmap_raw_write_impl()
1725 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1728 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1729 async->work_buf, in _regmap_raw_write_impl()
1730 map->format.reg_bytes + in _regmap_raw_write_impl()
1731 map->format.pad_bytes, in _regmap_raw_write_impl()
1734 ret = map->bus->async_write(map->bus_context, in _regmap_raw_write_impl()
1735 async->work_buf, in _regmap_raw_write_impl()
1736 map->format.reg_bytes + in _regmap_raw_write_impl()
1737 map->format.pad_bytes + in _regmap_raw_write_impl()
1741 dev_err(map->dev, "Failed to schedule write: %d\n", in _regmap_raw_write_impl()
1744 spin_lock_irqsave(&map->async_lock, flags); in _regmap_raw_write_impl()
1745 list_move(&async->list, &map->async_free); in _regmap_raw_write_impl()
1746 spin_unlock_irqrestore(&map->async_lock, flags); in _regmap_raw_write_impl()
1752 trace_regmap_hw_write_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1759 ret = map->write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1760 map->format.reg_bytes + in _regmap_raw_write_impl()
1761 map->format.pad_bytes + in _regmap_raw_write_impl()
1763 else if (map->bus && map->bus->gather_write) in _regmap_raw_write_impl()
1764 ret = map->bus->gather_write(map->bus_context, map->work_buf, in _regmap_raw_write_impl()
1765 map->format.reg_bytes + in _regmap_raw_write_impl()
1766 map->format.pad_bytes, in _regmap_raw_write_impl()
1769 ret = -ENOTSUPP; in _regmap_raw_write_impl()
1772 if (ret == -ENOTSUPP) { in _regmap_raw_write_impl()
1773 len = map->format.reg_bytes + map->format.pad_bytes + val_len; in _regmap_raw_write_impl()
1776 return -ENOMEM; in _regmap_raw_write_impl()
1778 memcpy(buf, map->work_buf, map->format.reg_bytes); in _regmap_raw_write_impl()
1779 memcpy(buf + map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_write_impl()
1781 ret = map->write(map->bus_context, buf, len); in _regmap_raw_write_impl()
1784 } else if (ret != 0 && !map->cache_bypass && map->format.parse_val) { in _regmap_raw_write_impl()
1786 * thus call map->cache_ops->drop() directly in _regmap_raw_write_impl()
1788 if (map->cache_ops && map->cache_ops->drop) in _regmap_raw_write_impl()
1789 map->cache_ops->drop(map, reg, reg + 1); in _regmap_raw_write_impl()
1792 trace_regmap_hw_write_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_write_impl()
1798 * regmap_can_raw_write - Test if regmap_raw_write() is supported
1804 return map->write && map->format.format_val && map->format.format_reg; in regmap_can_raw_write()
1809 * regmap_get_raw_read_max - Get the maximum size we can read
1815 return map->max_raw_read; in regmap_get_raw_read_max()
1820 * regmap_get_raw_write_max - Get the maximum size we can read
1826 return map->max_raw_write; in regmap_get_raw_write_max()
1834 struct regmap_range_node *range; in _regmap_bus_formatted_write() local
1837 WARN_ON(!map->format.format_write); in _regmap_bus_formatted_write()
1839 range = _regmap_range_lookup(map, reg); in _regmap_bus_formatted_write()
1840 if (range) { in _regmap_bus_formatted_write()
1841 ret = _regmap_select_page(map, ®, range, 1); in _regmap_bus_formatted_write()
1847 map->format.format_write(map, reg, val); in _regmap_bus_formatted_write()
1851 ret = map->write(map->bus_context, map->work_buf, map->format.buf_size); in _regmap_bus_formatted_write()
1862 struct regmap_range_node *range; in _regmap_bus_reg_write() local
1865 range = _regmap_range_lookup(map, reg); in _regmap_bus_reg_write()
1866 if (range) { in _regmap_bus_reg_write()
1867 ret = _regmap_select_page(map, ®, range, 1); in _regmap_bus_reg_write()
1873 return map->bus->reg_write(map->bus_context, reg, val); in _regmap_bus_reg_write()
1881 WARN_ON(!map->format.format_val); in _regmap_bus_raw_write()
1883 map->format.format_val(map->work_buf + map->format.reg_bytes in _regmap_bus_raw_write()
1884 + map->format.pad_bytes, val, 0); in _regmap_bus_raw_write()
1886 map->work_buf + in _regmap_bus_raw_write()
1887 map->format.reg_bytes + in _regmap_bus_raw_write()
1888 map->format.pad_bytes, in _regmap_bus_raw_write()
1889 map->format.val_bytes, in _regmap_bus_raw_write()
1895 return (map->bus || (!map->bus && map->read)) ? map : map->bus_context; in _regmap_map_get_context()
1905 return -EIO; in _regmap_write()
1907 if (!map->cache_bypass && !map->defer_caching) { in _regmap_write()
1911 if (map->cache_only) { in _regmap_write()
1912 map->cache_dirty = true; in _regmap_write()
1917 ret = map->reg_write(context, reg, val); in _regmap_write()
1920 dev_info(map->dev, "%x <= %x\n", reg, val); in _regmap_write()
1929 * regmap_write() - Write a value to a single register
1942 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write()
1943 return -EINVAL; in regmap_write()
1945 map->lock(map->lock_arg); in regmap_write()
1949 map->unlock(map->lock_arg); in regmap_write()
1956 * regmap_write_async() - Write a value to a single register asynchronously
1969 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_write_async()
1970 return -EINVAL; in regmap_write_async()
1972 map->lock(map->lock_arg); in regmap_write_async()
1974 map->async = true; in regmap_write_async()
1978 map->async = false; in regmap_write_async()
1980 map->unlock(map->lock_arg); in regmap_write_async()
1989 size_t val_bytes = map->format.val_bytes; in _regmap_raw_write()
1996 return -EINVAL; in _regmap_raw_write()
1998 if (map->use_single_write) in _regmap_raw_write()
2000 else if (map->max_raw_write && val_len > map->max_raw_write) in _regmap_raw_write()
2001 chunk_regs = map->max_raw_write / val_bytes; in _regmap_raw_write()
2014 val_len -= chunk_bytes; in _regmap_raw_write()
2025 * regmap_raw_write() - Write raw values to one or more registers
2046 return -EINVAL; in regmap_raw_write()
2047 if (val_len % map->format.val_bytes) in regmap_raw_write()
2048 return -EINVAL; in regmap_raw_write()
2050 map->lock(map->lock_arg); in regmap_raw_write()
2054 map->unlock(map->lock_arg); in regmap_raw_write()
2063 size_t val_bytes = map->format.val_bytes; in regmap_noinc_readwrite()
2076 lastval = (unsigned int)u8p[val_count - 1]; in regmap_noinc_readwrite()
2081 lastval = (unsigned int)u16p[val_count - 1]; in regmap_noinc_readwrite()
2086 lastval = (unsigned int)u32p[val_count - 1]; in regmap_noinc_readwrite()
2089 return -EINVAL; in regmap_noinc_readwrite()
2098 if (!map->cache_bypass && !map->defer_caching) { in regmap_noinc_readwrite()
2102 if (map->cache_only) { in regmap_noinc_readwrite()
2103 map->cache_dirty = true; in regmap_noinc_readwrite()
2107 ret = map->bus->reg_noinc_write(map->bus_context, reg, val, val_count); in regmap_noinc_readwrite()
2109 ret = map->bus->reg_noinc_read(map->bus_context, reg, val, val_count); in regmap_noinc_readwrite()
2113 dev_info(map->dev, "%x %s [", reg, write ? "<=" : "=>"); in regmap_noinc_readwrite()
2128 if (i == (val_count - 1)) in regmap_noinc_readwrite()
2147 * The regmap API usually assumes that bulk bus write operations will write a
2148 * range of registers. Some devices have certain registers for which a write
2165 if (!map->write && !(map->bus && map->bus->reg_noinc_write)) in regmap_noinc_write()
2166 return -EINVAL; in regmap_noinc_write()
2167 if (val_len % map->format.val_bytes) in regmap_noinc_write()
2168 return -EINVAL; in regmap_noinc_write()
2169 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_write()
2170 return -EINVAL; in regmap_noinc_write()
2172 return -EINVAL; in regmap_noinc_write()
2174 map->lock(map->lock_arg); in regmap_noinc_write()
2177 ret = -EINVAL; in regmap_noinc_write()
2185 if (map->bus->reg_noinc_write) { in regmap_noinc_write()
2191 if (map->max_raw_write && map->max_raw_write < val_len) in regmap_noinc_write()
2192 write_len = map->max_raw_write; in regmap_noinc_write()
2199 val_len -= write_len; in regmap_noinc_write()
2203 map->unlock(map->lock_arg); in regmap_noinc_write()
2209 * regmap_field_update_bits_base() - Perform a read/modify/write cycle a
2229 mask = (mask << field->shift) & field->mask; in regmap_field_update_bits_base()
2231 return regmap_update_bits_base(field->regmap, field->reg, in regmap_field_update_bits_base()
2232 mask, val << field->shift, in regmap_field_update_bits_base()
2238 * regmap_field_test_bits() - Check if all specified bits are set in a
2244 * Returns -1 if the underlying regmap_field_read() fails, 0 if at least one of the
2260 * regmap_fields_update_bits_base() - Perform a read/modify/write cycle a
2278 if (id >= field->id_size) in regmap_fields_update_bits_base()
2279 return -EINVAL; in regmap_fields_update_bits_base()
2281 mask = (mask << field->shift) & field->mask; in regmap_fields_update_bits_base()
2283 return regmap_update_bits_base(field->regmap, in regmap_fields_update_bits_base()
2284 field->reg + (field->id_offset * id), in regmap_fields_update_bits_base()
2285 mask, val << field->shift, in regmap_fields_update_bits_base()
2291 * regmap_bulk_write() - Write multiple registers to the device
2308 size_t val_bytes = map->format.val_bytes; in regmap_bulk_write()
2310 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_write()
2311 return -EINVAL; in regmap_bulk_write()
2317 if (!map->write || !map->format.parse_inplace) { in regmap_bulk_write()
2318 map->lock(map->lock_arg); in regmap_bulk_write()
2333 ret = -EINVAL; in regmap_bulk_write()
2344 map->unlock(map->lock_arg); in regmap_bulk_write()
2348 wval = kmemdup(val, val_count * val_bytes, map->alloc_flags); in regmap_bulk_write()
2350 return -ENOMEM; in regmap_bulk_write()
2353 map->format.parse_inplace(wval + i); in regmap_bulk_write()
2382 size_t val_bytes = map->format.val_bytes; in _regmap_raw_multi_reg_write()
2383 size_t reg_bytes = map->format.reg_bytes; in _regmap_raw_multi_reg_write()
2384 size_t pad_bytes = map->format.pad_bytes; in _regmap_raw_multi_reg_write()
2389 return -EINVAL; in _regmap_raw_multi_reg_write()
2393 return -ENOMEM; in _regmap_raw_multi_reg_write()
2404 map->format.format_reg(u8, reg, map->reg_shift); in _regmap_raw_multi_reg_write()
2406 map->format.format_val(u8, val, 0); in _regmap_raw_multi_reg_write()
2410 *u8 |= map->write_flag_mask; in _regmap_raw_multi_reg_write()
2412 ret = map->write(map->bus_context, buf, len); in _regmap_raw_multi_reg_write()
2425 struct regmap_range_node *range) in _regmap_register_page() argument
2427 unsigned int win_page = (reg - range->range_min) / range->window_len; in _regmap_register_page()
2450 struct regmap_range_node *range; in _regmap_range_multi_paged_reg_write() local
2452 range = _regmap_range_lookup(map, reg); in _regmap_range_multi_paged_reg_write()
2453 if (range) { in _regmap_range_multi_paged_reg_write()
2455 range); in _regmap_range_multi_paged_reg_write()
2486 if (map->can_sleep) in _regmap_range_multi_paged_reg_write()
2498 range, 1); in _regmap_range_multi_paged_reg_write()
2520 if (!map->can_multi_write) { in _regmap_multi_reg_write()
2527 if (map->can_sleep) in _regmap_multi_reg_write()
2536 if (!map->format.parse_inplace) in _regmap_multi_reg_write()
2537 return -EINVAL; in _regmap_multi_reg_write()
2539 if (map->writeable_reg) in _regmap_multi_reg_write()
2542 if (!map->writeable_reg(map->dev, reg)) in _regmap_multi_reg_write()
2543 return -EINVAL; in _regmap_multi_reg_write()
2544 if (!IS_ALIGNED(reg, map->reg_stride)) in _regmap_multi_reg_write()
2545 return -EINVAL; in _regmap_multi_reg_write()
2548 if (!map->cache_bypass) { in _regmap_multi_reg_write()
2554 dev_err(map->dev, in _regmap_multi_reg_write()
2560 if (map->cache_only) { in _regmap_multi_reg_write()
2561 map->cache_dirty = true; in _regmap_multi_reg_write()
2566 WARN_ON(!map->bus); in _regmap_multi_reg_write()
2570 struct regmap_range_node *range; in _regmap_multi_reg_write() local
2575 range = _regmap_range_lookup(map, reg); in _regmap_multi_reg_write()
2576 if (range || regs[i].delay_us) { in _regmap_multi_reg_write()
2581 return -ENOMEM; in _regmap_multi_reg_write()
2593 * regmap_multi_reg_write() - Write multiple registers to the device
2600 * pairs are supplied in any order, possibly not all in a single range.
2603 * target bus as R,V1,V2,V3,..,Vn where successively higher registers are
2605 * the data as R1,V1,R2,V2,..,Rn,Vn on the target bus. The target device
2616 map->lock(map->lock_arg); in regmap_multi_reg_write()
2620 map->unlock(map->lock_arg); in regmap_multi_reg_write()
2627 * regmap_multi_reg_write_bypassed() - Write multiple registers to the
2651 map->lock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2653 bypass = map->cache_bypass; in regmap_multi_reg_write_bypassed()
2654 map->cache_bypass = true; in regmap_multi_reg_write_bypassed()
2658 map->cache_bypass = bypass; in regmap_multi_reg_write_bypassed()
2660 map->unlock(map->lock_arg); in regmap_multi_reg_write_bypassed()
2667 * regmap_raw_write_async() - Write raw values to one or more registers
2680 * If supported by the underlying bus the write will be scheduled
2693 if (val_len % map->format.val_bytes) in regmap_raw_write_async()
2694 return -EINVAL; in regmap_raw_write_async()
2695 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_write_async()
2696 return -EINVAL; in regmap_raw_write_async()
2698 map->lock(map->lock_arg); in regmap_raw_write_async()
2700 map->async = true; in regmap_raw_write_async()
2704 map->async = false; in regmap_raw_write_async()
2706 map->unlock(map->lock_arg); in regmap_raw_write_async()
2715 struct regmap_range_node *range; in _regmap_raw_read() local
2718 if (!map->read) in _regmap_raw_read()
2719 return -EINVAL; in _regmap_raw_read()
2721 range = _regmap_range_lookup(map, reg); in _regmap_raw_read()
2722 if (range) { in _regmap_raw_read()
2723 ret = _regmap_select_page(map, ®, range, in _regmap_raw_read()
2724 noinc ? 1 : val_len / map->format.val_bytes); in _regmap_raw_read()
2730 map->format.format_reg(map->work_buf, reg, map->reg_shift); in _regmap_raw_read()
2731 regmap_set_work_buf_flag_mask(map, map->format.reg_bytes, in _regmap_raw_read()
2732 map->read_flag_mask); in _regmap_raw_read()
2733 trace_regmap_hw_read_start(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2735 ret = map->read(map->bus_context, map->work_buf, in _regmap_raw_read()
2736 map->format.reg_bytes + map->format.pad_bytes, in _regmap_raw_read()
2739 trace_regmap_hw_read_done(map, reg, val_len / map->format.val_bytes); in _regmap_raw_read()
2748 struct regmap_range_node *range; in _regmap_bus_reg_read() local
2751 range = _regmap_range_lookup(map, reg); in _regmap_bus_reg_read()
2752 if (range) { in _regmap_bus_reg_read()
2753 ret = _regmap_select_page(map, ®, range, 1); in _regmap_bus_reg_read()
2759 return map->bus->reg_read(map->bus_context, reg, val); in _regmap_bus_reg_read()
2767 void *work_val = map->work_buf + map->format.reg_bytes + in _regmap_bus_read()
2768 map->format.pad_bytes; in _regmap_bus_read()
2770 if (!map->format.parse_val) in _regmap_bus_read()
2771 return -EINVAL; in _regmap_bus_read()
2773 ret = _regmap_raw_read(map, reg, work_val, map->format.val_bytes, false); in _regmap_bus_read()
2775 *val = map->format.parse_val(work_val); in _regmap_bus_read()
2786 if (!map->cache_bypass) { in _regmap_read()
2792 if (map->cache_only) in _regmap_read()
2793 return -EBUSY; in _regmap_read()
2796 return -EIO; in _regmap_read()
2798 ret = map->reg_read(context, reg, val); in _regmap_read()
2801 dev_info(map->dev, "%x => %x\n", reg, *val); in _regmap_read()
2805 if (!map->cache_bypass) in _regmap_read()
2813 * regmap_read() - Read a value from a single register
2826 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_read()
2827 return -EINVAL; in regmap_read()
2829 map->lock(map->lock_arg); in regmap_read()
2833 map->unlock(map->lock_arg); in regmap_read()
2840 * regmap_raw_read() - Read raw data from the device
2853 size_t val_bytes = map->format.val_bytes; in regmap_raw_read()
2858 if (val_len % map->format.val_bytes) in regmap_raw_read()
2859 return -EINVAL; in regmap_raw_read()
2860 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_raw_read()
2861 return -EINVAL; in regmap_raw_read()
2863 return -EINVAL; in regmap_raw_read()
2865 map->lock(map->lock_arg); in regmap_raw_read()
2867 if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || in regmap_raw_read()
2868 map->cache_type == REGCACHE_NONE) { in regmap_raw_read()
2872 if (!map->cache_bypass && map->cache_only) { in regmap_raw_read()
2873 ret = -EBUSY; in regmap_raw_read()
2877 if (!map->read) { in regmap_raw_read()
2878 ret = -ENOTSUPP; in regmap_raw_read()
2882 if (map->use_single_read) in regmap_raw_read()
2884 else if (map->max_raw_read && val_len > map->max_raw_read) in regmap_raw_read()
2885 chunk_regs = map->max_raw_read / val_bytes; in regmap_raw_read()
2898 val_len -= chunk_bytes; in regmap_raw_read()
2917 map->format.format_val(val + (i * val_bytes), v, 0); in regmap_raw_read()
2922 map->unlock(map->lock_arg); in regmap_raw_read()
2938 * range of registers. Some devices have certain registers for which a read
2955 if (!map->read) in regmap_noinc_read()
2956 return -ENOTSUPP; in regmap_noinc_read()
2958 if (val_len % map->format.val_bytes) in regmap_noinc_read()
2959 return -EINVAL; in regmap_noinc_read()
2960 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_noinc_read()
2961 return -EINVAL; in regmap_noinc_read()
2963 return -EINVAL; in regmap_noinc_read()
2965 map->lock(map->lock_arg); in regmap_noinc_read()
2968 ret = -EINVAL; in regmap_noinc_read()
2978 if (!map->cache_bypass && map->cache_only) { in regmap_noinc_read()
2979 ret = -EBUSY; in regmap_noinc_read()
2984 if (map->bus->reg_noinc_read) { in regmap_noinc_read()
2990 if (map->max_raw_read && map->max_raw_read < val_len) in regmap_noinc_read()
2991 read_len = map->max_raw_read; in regmap_noinc_read()
2998 val_len -= read_len; in regmap_noinc_read()
3002 map->unlock(map->lock_arg); in regmap_noinc_read()
3020 ret = regmap_read(field->regmap, field->reg, ®_val); in regmap_field_read()
3024 reg_val &= field->mask; in regmap_field_read()
3025 reg_val >>= field->shift; in regmap_field_read()
3033 * regmap_fields_read() - Read a value to a single register field with port ID
3048 if (id >= field->id_size) in regmap_fields_read()
3049 return -EINVAL; in regmap_fields_read()
3051 ret = regmap_read(field->regmap, in regmap_fields_read()
3052 field->reg + (field->id_offset * id), in regmap_fields_read()
3057 reg_val &= field->mask; in regmap_fields_read()
3058 reg_val >>= field->shift; in regmap_fields_read()
3066 * regmap_bulk_read() - Read multiple registers from the device
3080 size_t val_bytes = map->format.val_bytes; in regmap_bulk_read()
3083 if (!IS_ALIGNED(reg, map->reg_stride)) in regmap_bulk_read()
3084 return -EINVAL; in regmap_bulk_read()
3086 return -EINVAL; in regmap_bulk_read()
3088 if (map->read && map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) { in regmap_bulk_read()
3094 map->format.parse_inplace(val + i); in regmap_bulk_read()
3100 map->lock(map->lock_arg); in regmap_bulk_read()
3110 switch (map->format.val_bytes) { in regmap_bulk_read()
3121 ret = -EINVAL; in regmap_bulk_read()
3127 map->unlock(map->lock_arg); in regmap_bulk_read()
3147 if (regmap_volatile(map, reg) && map->reg_update_bits) { in _regmap_update_bits()
3149 ret = map->reg_update_bits(map->bus_context, reg, mask, val); in _regmap_update_bits()
3160 if (force_write || (tmp != orig) || map->force_write_field) { in _regmap_update_bits()
3171 * regmap_update_bits_base() - Perform a read/modify/write cycle on a register
3198 map->lock(map->lock_arg); in regmap_update_bits_base()
3200 map->async = async; in regmap_update_bits_base()
3204 map->async = false; in regmap_update_bits_base()
3206 map->unlock(map->lock_arg); in regmap_update_bits_base()
3213 * regmap_test_bits() - Check if all specified bits are set in a register.
3237 struct regmap *map = async->map; in regmap_async_complete_cb()
3242 spin_lock(&map->async_lock); in regmap_async_complete_cb()
3243 list_move(&async->list, &map->async_free); in regmap_async_complete_cb()
3244 wake = list_empty(&map->async_list); in regmap_async_complete_cb()
3247 map->async_ret = ret; in regmap_async_complete_cb()
3249 spin_unlock(&map->async_lock); in regmap_async_complete_cb()
3252 wake_up(&map->async_waitq); in regmap_async_complete_cb()
3261 spin_lock_irqsave(&map->async_lock, flags); in regmap_async_is_done()
3262 ret = list_empty(&map->async_list); in regmap_async_is_done()
3263 spin_unlock_irqrestore(&map->async_lock, flags); in regmap_async_is_done()
3269 * regmap_async_complete - Ensure all asynchronous I/O has completed.
3282 if (!map->bus || !map->bus->async_write) in regmap_async_complete()
3287 wait_event(map->async_waitq, regmap_async_is_done(map)); in regmap_async_complete()
3289 spin_lock_irqsave(&map->async_lock, flags); in regmap_async_complete()
3290 ret = map->async_ret; in regmap_async_complete()
3291 map->async_ret = 0; in regmap_async_complete()
3292 spin_unlock_irqrestore(&map->async_lock, flags); in regmap_async_complete()
3301 * regmap_register_patch - Register and apply register updates to be applied
3328 p = krealloc(map->patch, in regmap_register_patch()
3329 sizeof(struct reg_sequence) * (map->patch_regs + num_regs), in regmap_register_patch()
3332 memcpy(p + map->patch_regs, regs, num_regs * sizeof(*regs)); in regmap_register_patch()
3333 map->patch = p; in regmap_register_patch()
3334 map->patch_regs += num_regs; in regmap_register_patch()
3336 return -ENOMEM; in regmap_register_patch()
3339 map->lock(map->lock_arg); in regmap_register_patch()
3341 bypass = map->cache_bypass; in regmap_register_patch()
3343 map->cache_bypass = true; in regmap_register_patch()
3344 map->async = true; in regmap_register_patch()
3348 map->async = false; in regmap_register_patch()
3349 map->cache_bypass = bypass; in regmap_register_patch()
3351 map->unlock(map->lock_arg); in regmap_register_patch()
3360 * regmap_get_val_bytes() - Report the size of a register value
3369 if (map->format.format_write) in regmap_get_val_bytes()
3370 return -EINVAL; in regmap_get_val_bytes()
3372 return map->format.val_bytes; in regmap_get_val_bytes()
3377 * regmap_get_max_register() - Report the max register value
3386 return map->max_register ? map->max_register : -EINVAL; in regmap_get_max_register()
3391 * regmap_get_reg_stride() - Report the register address stride
3400 return map->reg_stride; in regmap_get_reg_stride()
3405 * regmap_might_sleep() - Returns whether a regmap access might sleep.
3413 return map->can_sleep; in regmap_might_sleep()
3420 if (!map->format.parse_val) in regmap_parse_val()
3421 return -EINVAL; in regmap_parse_val()
3423 *val = map->format.parse_val(buf); in regmap_parse_val()