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path: root/drivers/core/regmap.c
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Diffstat (limited to 'drivers/core/regmap.c')
-rw-r--r--drivers/core/regmap.c31
1 files changed, 9 insertions, 22 deletions
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index a5e4e748256..0f787ab4e13 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -17,22 +17,13 @@
DECLARE_GLOBAL_DATA_PTR;
-static struct regmap *regmap_alloc_count(int count)
+static struct regmap *regmap_alloc(int count)
{
struct regmap *map;
- map = malloc(sizeof(struct regmap));
+ map = malloc(sizeof(*map) + sizeof(map->ranges[0]) * count);
if (!map)
return NULL;
- if (count <= 1) {
- map->range = &map->base_range;
- } else {
- map->range = malloc(count * sizeof(struct regmap_range));
- if (!map->range) {
- free(map);
- return NULL;
- }
- }
map->range_count = count;
return map;
@@ -45,12 +36,11 @@ int regmap_init_mem_platdata(struct udevice *dev, fdt_val_t *reg, int count,
struct regmap_range *range;
struct regmap *map;
- map = regmap_alloc_count(count);
+ map = regmap_alloc(count);
if (!map)
return -ENOMEM;
- map->base = *reg;
- for (range = map->range; count > 0; reg += 2, range++, count--) {
+ for (range = map->ranges; count > 0; reg += 2, range++, count--) {
range->start = *reg;
range->size = reg[1];
}
@@ -83,11 +73,11 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
if (!count)
return -EINVAL;
- map = regmap_alloc_count(count);
+ map = regmap_alloc(count);
if (!map)
return -ENOMEM;
- for (range = map->range, index = 0; count > 0;
+ for (range = map->ranges, index = 0; count > 0;
count--, range++, index++) {
fdt_size_t sz;
if (of_live_active()) {
@@ -101,7 +91,6 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
range->size = sz;
}
}
- map->base = map->range[0].start;
*mapp = map;
@@ -115,15 +104,13 @@ void *regmap_get_range(struct regmap *map, unsigned int range_num)
if (range_num >= map->range_count)
return NULL;
- range = &map->range[range_num];
+ range = &map->ranges[range_num];
return map_sysmem(range->start, range->size);
}
int regmap_uninit(struct regmap *map)
{
- if (map->range_count > 1)
- free(map->range);
free(map);
return 0;
@@ -131,7 +118,7 @@ int regmap_uninit(struct regmap *map)
int regmap_read(struct regmap *map, uint offset, uint *valp)
{
- uint32_t *ptr = map_physmem(map->base + offset, 4, MAP_NOCACHE);
+ u32 *ptr = map_physmem(map->ranges[0].start + offset, 4, MAP_NOCACHE);
*valp = le32_to_cpu(readl(ptr));
@@ -140,7 +127,7 @@ int regmap_read(struct regmap *map, uint offset, uint *valp)
int regmap_write(struct regmap *map, uint offset, uint val)
{
- uint32_t *ptr = map_physmem(map->base + offset, 4, MAP_NOCACHE);
+ u32 *ptr = map_physmem(map->ranges[0].start + offset, 4, MAP_NOCACHE);
writel(cpu_to_le32(val), ptr);