+ map->range_tree = RB_ROOT;
+ for (i = 0; i < config->n_ranges; i++) {
+ const struct regmap_range_cfg *range_cfg = &config->ranges[i];
+ struct regmap_range_node *new;
+
+ /* Sanity check */
+ if (range_cfg->range_max < range_cfg->range_min ||
+ range_cfg->range_max > map->max_register ||
+ range_cfg->selector_reg > map->max_register ||
+ range_cfg->window_len == 0)
+ goto err_range;
+
+ /* Make sure, that this register range has no selector
+ or data window within its boundary */
+ for (j = 0; j < config->n_ranges; j++) {
+ unsigned sel_reg = config->ranges[j].selector_reg;
+ unsigned win_min = config->ranges[j].window_start;
+ unsigned win_max = win_min +
+ config->ranges[j].window_len - 1;
+
+ if (range_cfg->range_min <= sel_reg &&
+ sel_reg <= range_cfg->range_max) {
+ goto err_range;
+ }
+
+ if (!(win_max < range_cfg->range_min ||
+ win_min > range_cfg->range_max)) {
+ goto err_range;
+ }
+ }
+
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (new == NULL) {
+ ret = -ENOMEM;
+ goto err_range;
+ }
+
+ new->range_min = range_cfg->range_min;
+ new->range_max = range_cfg->range_max;
+ new->selector_reg = range_cfg->selector_reg;
+ new->selector_mask = range_cfg->selector_mask;
+ new->selector_shift = range_cfg->selector_shift;
+ new->window_start = range_cfg->window_start;
+ new->window_len = range_cfg->window_len;
+
+ if (_regmap_range_add(map, new) == false) {
+ kfree(new);
+ goto err_range;
+ }
+
+ if (map->selector_work_buf == NULL) {
+ map->selector_work_buf =
+ kzalloc(map->format.buf_size, GFP_KERNEL);
+ if (map->selector_work_buf == NULL) {
+ ret = -ENOMEM;
+ goto err_range;
+ }
+ }
+ }