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path: root/drivers/base/regmap/regcache.c
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Diffstat (limited to 'drivers/base/regmap/regcache.c')
-rw-r--r--drivers/base/regmap/regcache.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index b1f8508c3966..c7650fa434ad 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -21,6 +21,26 @@ static const struct regcache_ops *cache_types[] = {
&regcache_flat_ops,
};
+static int regcache_defaults_cmp(const void *a, const void *b)
+{
+ const struct reg_default *x = a;
+ const struct reg_default *y = b;
+
+ if (x->reg > y->reg)
+ return 1;
+ else if (x->reg < y->reg)
+ return -1;
+ else
+ return 0;
+}
+
+void regcache_sort_defaults(struct reg_default *defaults, unsigned int ndefaults)
+{
+ sort(defaults, ndefaults, sizeof(*defaults),
+ regcache_defaults_cmp, NULL);
+}
+EXPORT_SYMBOL_GPL(regcache_sort_defaults);
+
static int regcache_hw_init(struct regmap *map)
{
int i, j;