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>

4 files changed, 1 insertions, 88 deletions

diff --git a/drivers/base/regmap/Makefile b/drivers/base/regmap/Makefile
index 3dbe5d3ff227..defd57963c84 100644
--- a/drivers/base/regmap/Makefile
+++ b/drivers/base/regmap/Makefile
@@ -1,4 +1,4 @@
-obj-$(CONFIG_REGMAP) += regmap.o regcache.o regcache-indexed.o
+obj-$(CONFIG_REGMAP) += regmap.o regcache.o
 obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o
 obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
 obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 954f7b73238f..1a02b7537c8b 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -119,10 +119,7 @@ unsigned int regcache_get_val(const void *base, unsigned int idx,
 bool regcache_set_val(void *base, unsigned int idx,
                       unsigned int val, unsigned int word_size);
 int regcache_lookup_reg(struct regmap *map, unsigned int reg);
-int regcache_insert_reg(struct regmap *map, unsigned int reg,
-                        unsigned int val);
 
-extern struct regcache_ops regcache_indexed_ops;
 extern struct regcache_ops regcache_rbtree_ops;
 extern struct regcache_ops regcache_lzo_ops;
 
diff --git a/drivers/base/regmap/regcache-indexed.c b/drivers/base/regmap/regcache-indexed.c
deleted file mode 100644
index 507731ad8ec1..000000000000
--- a/drivers/base/regmap/regcache-indexed.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Register cache access API - indexed caching support
- *
- * Copyright 2011 Wolfson Microelectronics plc
- *
- * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/slab.h>
-
-#include "internal.h"
-
-static int regcache_indexed_read(struct regmap *map, unsigned int reg,
-                                 unsigned int *value)
-{
-        int ret;
-
-        ret = regcache_lookup_reg(map, reg);
-        if (ret >= 0)
-                *value = map->reg_defaults[ret].def;
-
-        return ret;
-}
-
-static int regcache_indexed_write(struct regmap *map, unsigned int reg,
-                                  unsigned int value)
-{
-        int ret;
-
-        ret = regcache_lookup_reg(map, reg);
-        if (ret < 0)
-                return regcache_insert_reg(map, reg, value);
-        map->reg_defaults[ret].def = value;
-        return 0;
-}
-
-static int regcache_indexed_sync(struct regmap *map)
-{
-        unsigned int i;
-        int ret;
-
-        for (i = 0; i < map->num_reg_defaults; i++) {
-                ret = _regmap_write(map, map->reg_defaults[i].reg,
-                                    map->reg_defaults[i].def);
-                if (ret < 0)
-                        return ret;
-                dev_dbg(map->dev, "Synced register %#x, value %#x\n",
-                        map->reg_defaults[i].reg,
-                        map->reg_defaults[i].def);
-        }
-        return 0;
-}
-
-struct regcache_ops regcache_indexed_ops = {
-        .type = REGCACHE_INDEXED,
-        .name = "indexed",
-        .read = regcache_indexed_read,
-        .write = regcache_indexed_write,
-        .sync = regcache_indexed_sync
-};
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index e21eebd36afa..1ca2d7a1051f 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -19,7 +19,6 @@
 #include "internal.h"
 
 static const struct regcache_ops *cache_types[] = {
-        &regcache_indexed_ops,
         &regcache_rbtree_ops,
         &regcache_lzo_ops,
 };
@@ -420,22 +419,3 @@ int regcache_lookup_reg(struct regmap *map, unsigned int reg)
         else
                 return -ENOENT;
 }
-
-int regcache_insert_reg(struct regmap *map, unsigned int reg,
-                        unsigned int val)
-{
-        void *tmp;
-
-        tmp = krealloc(map->reg_defaults,
-                       (map->num_reg_defaults + 1) * sizeof(struct reg_default),
-                       GFP_KERNEL);
-        if (!tmp)
-                return -ENOMEM;
-        map->reg_defaults = tmp;
-        map->num_reg_defaults++;
-        map->reg_defaults[map->num_reg_defaults - 1].reg = reg;
-        map->reg_defaults[map->num_reg_defaults - 1].def = val;
-        sort(map->reg_defaults, map->num_reg_defaults,
-             sizeof(struct reg_default), regcache_default_cmp, NULL);
-        return 0;
-}