regmap: Remove indexed cache type
There should be no situation where it offers any advantage over rbtree and there are no current users so remove the code for simplicity. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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5 changed files with 1 additions and 89 deletions
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@ -1,4 +1,4 @@
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obj-$(CONFIG_REGMAP) += regmap.o regcache.o regcache-indexed.o
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obj-$(CONFIG_REGMAP) += regmap.o regcache.o
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obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o
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obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
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obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
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@ -119,10 +119,7 @@ unsigned int regcache_get_val(const void *base, unsigned int idx,
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bool regcache_set_val(void *base, unsigned int idx,
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unsigned int val, unsigned int word_size);
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int regcache_lookup_reg(struct regmap *map, unsigned int reg);
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int regcache_insert_reg(struct regmap *map, unsigned int reg,
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unsigned int val);
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extern struct regcache_ops regcache_indexed_ops;
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extern struct regcache_ops regcache_rbtree_ops;
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extern struct regcache_ops regcache_lzo_ops;
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@ -1,64 +0,0 @@
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/*
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* Register cache access API - indexed caching support
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*
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* Copyright 2011 Wolfson Microelectronics plc
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*
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* Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/slab.h>
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#include "internal.h"
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static int regcache_indexed_read(struct regmap *map, unsigned int reg,
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unsigned int *value)
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{
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int ret;
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ret = regcache_lookup_reg(map, reg);
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if (ret >= 0)
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*value = map->reg_defaults[ret].def;
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return ret;
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}
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static int regcache_indexed_write(struct regmap *map, unsigned int reg,
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unsigned int value)
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{
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int ret;
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ret = regcache_lookup_reg(map, reg);
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if (ret < 0)
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return regcache_insert_reg(map, reg, value);
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map->reg_defaults[ret].def = value;
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return 0;
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}
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static int regcache_indexed_sync(struct regmap *map)
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{
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unsigned int i;
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int ret;
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for (i = 0; i < map->num_reg_defaults; i++) {
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ret = _regmap_write(map, map->reg_defaults[i].reg,
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map->reg_defaults[i].def);
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if (ret < 0)
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return ret;
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dev_dbg(map->dev, "Synced register %#x, value %#x\n",
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map->reg_defaults[i].reg,
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map->reg_defaults[i].def);
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}
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return 0;
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}
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struct regcache_ops regcache_indexed_ops = {
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.type = REGCACHE_INDEXED,
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.name = "indexed",
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.read = regcache_indexed_read,
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.write = regcache_indexed_write,
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.sync = regcache_indexed_sync
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};
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@ -19,7 +19,6 @@
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#include "internal.h"
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static const struct regcache_ops *cache_types[] = {
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®cache_indexed_ops,
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®cache_rbtree_ops,
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®cache_lzo_ops,
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};
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@ -420,22 +419,3 @@ int regcache_lookup_reg(struct regmap *map, unsigned int reg)
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else
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return -ENOENT;
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}
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int regcache_insert_reg(struct regmap *map, unsigned int reg,
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unsigned int val)
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{
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void *tmp;
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tmp = krealloc(map->reg_defaults,
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(map->num_reg_defaults + 1) * sizeof(struct reg_default),
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GFP_KERNEL);
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if (!tmp)
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return -ENOMEM;
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map->reg_defaults = tmp;
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map->num_reg_defaults++;
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map->reg_defaults[map->num_reg_defaults - 1].reg = reg;
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map->reg_defaults[map->num_reg_defaults - 1].def = val;
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sort(map->reg_defaults, map->num_reg_defaults,
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sizeof(struct reg_default), regcache_default_cmp, NULL);
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return 0;
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}
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@ -23,7 +23,6 @@ struct spi_device;
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/* An enum of all the supported cache types */
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enum regcache_type {
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REGCACHE_NONE,
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REGCACHE_INDEXED,
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REGCACHE_RBTREE,
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REGCACHE_COMPRESSED
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};
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