static int regcache_default_sync(struct regmap *map, unsigned int min,
unsigned int max)
{
unsigned int reg;
for (reg = min; reg <= max; reg += map->reg_stride) {
unsigned int val;
int ret;
if (regmap_volatile(map, reg) ||
!regmap_writeable(map, reg))
continue;
ret = regcache_read(map, reg, &val);
if (ret)
return ret;
if (!regcache_reg_needs_sync(map, reg, val))
continue;
map->cache_bypass = true;
ret = _regmap_write(map, reg, val);
map->cache_bypass = false;
if (ret) {
dev_err(map->dev, "Unable to sync register %#x. %d\n",
reg, ret);
return ret;
}
dev_dbg(map->dev, "Synced register %#x, value %#x\n", reg, val);
}
return 0;
}
static int regcache_sync_block_single(struct regmap *map, void *block,
unsigned long *cache_present,
unsigned int block_base,
unsigned int start, unsigned int end)
{
unsigned int i, regtmp, val;
int ret;
for (i = start; i < end; i++) {
regtmp = block_base + (i * map->reg_stride);
if (!regcache_reg_present(cache_present, i) ||
!regmap_writeable(map, regtmp))
continue;
val = regcache_get_val(map, block, i);
if (!regcache_reg_needs_sync(map, regtmp, val))
continue;
map->cache_bypass = true;
ret = _regmap_write(map, regtmp, val);
map->cache_bypass = false;
if (ret != 0) {
dev_err(map->dev, "Unable to sync register %#x. %d\n",
regtmp, ret);
return ret;
}
dev_dbg(map->dev, "Synced register %#x, value %#x\n",
regtmp, val);
}
return 0;
}
static int regcache_default_sync(struct regmap *map, unsigned int min,
unsigned int max)
{
unsigned int reg;
for (reg = min; reg <= max; reg++) {
unsigned int val;
int ret;
if (regmap_volatile(map, reg))
continue;
ret = regcache_read(map, reg, &val);
if (ret)
return ret;
if (!regcache_reg_needs_sync(map, reg, val))
continue;
map->cache_bypass = 1;
ret = _regmap_write(map, reg, val);
map->cache_bypass = 0;
if (ret)
return ret;
dev_dbg(map->dev, "Synced register %#x, value %#x\n", reg, val);
}
return 0;
}
static int regcache_sync_block_raw(struct regmap *map, void *block,
unsigned long *cache_present,
unsigned int block_base, unsigned int start,
unsigned int end)
{
unsigned int i, val;
unsigned int regtmp = 0;
unsigned int base = 0;
const void *data = NULL;
int ret;
for (i = start; i < end; i++) {
regtmp = block_base + (i * map->reg_stride);
if (!regcache_reg_present(cache_present, i) ||
!regmap_writeable(map, regtmp)) {
ret = regcache_sync_block_raw_flush(map, &data,
base, regtmp);
if (ret != 0)
return ret;
continue;
}
val = regcache_get_val(map, block, i);
if (!regcache_reg_needs_sync(map, regtmp, val)) {
ret = regcache_sync_block_raw_flush(map, &data,
base, regtmp);
if (ret != 0)
return ret;
continue;
}
if (!data) {
data = regcache_get_val_addr(map, block, i);
base = regtmp;
}
}
return regcache_sync_block_raw_flush(map, &data, base, regtmp +
map->reg_stride);
}