xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Merge remote-tracking branches 'regmap/topic/const', 'regmap/topic/flat', 'regmap/topic/hwspinlock' and 'regmap/topic/nolock' into regmap-next

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This commit is contained in:
Mark Brown
2018-01-12 20:03:57 +00:00
parent 86e41a2978 8253bb3f82 46318b9784 3bafc09e77 078711d7f8
commit 757b65285f
8 changed files with 88 additions and 22 deletions
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37
drivers/base/regmap/regmap.c
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@@ -414,7 +414,6 @@ static unsigned int regmap_parse_64_native(const void *buf)
}
#endif
#ifdef REGMAP_HWSPINLOCK
static void regmap_lock_hwlock(void *__map)
{
struct regmap *map = __map;
@@ -457,7 +456,11 @@ static void regmap_unlock_hwlock_irqrestore(void *__map)
hwspin_unlock_irqrestore(map->hwlock, &map->spinlock_flags);
}
#endif
static void regmap_lock_unlock_none(void *__map)
{
}
static void regmap_lock_mutex(void *__map)
{
@@ -669,16 +672,26 @@ struct regmap *__regmap_init(struct device *dev,
goto err;
}
if (config->lock && config->unlock) {
if (config->name) {
map->name = kstrdup_const(config->name, GFP_KERNEL);
if (!map->name) {
ret = -ENOMEM;
goto err_map;
}
}
if (config->disable_locking) {
map->lock = map->unlock = regmap_lock_unlock_none;
regmap_debugfs_disable(map);
} else if (config->lock && config->unlock) {
map->lock = config->lock;
map->unlock = config->unlock;
map->lock_arg = config->lock_arg;
} else if (config->hwlock_id) {
#ifdef REGMAP_HWSPINLOCK
} else if (config->use_hwlock) {
map->hwlock = hwspin_lock_request_specific(config->hwlock_id);
if (!map->hwlock) {
ret = -ENXIO;
goto err_map;
goto err_name;
}
switch (config->hwlock_mode) {
@@ -697,10 +710,6 @@ struct regmap *__regmap_init(struct device *dev,
}
map->lock_arg = map;
#else
ret = -EINVAL;
goto err_map;
#endif
} else {
if ((bus && bus->fast_io) ||
config->fast_io) {
@@ -762,7 +771,6 @@ struct regmap *__regmap_init(struct device *dev,
map->volatile_reg = config->volatile_reg;
map->precious_reg = config->precious_reg;
map->cache_type = config->cache_type;
map->name = config->name;
spin_lock_init(&map->async_lock);
INIT_LIST_HEAD(&map->async_list);
@@ -1116,8 +1124,10 @@ err_range:
regmap_range_exit(map);
kfree(map->work_buf);
err_hwlock:
if (IS_ENABLED(REGMAP_HWSPINLOCK) && map->hwlock)
if (map->hwlock)
hwspin_lock_free(map->hwlock);
err_name:
kfree_const(map->name);
err_map:
kfree(map);
err:
@@ -1305,8 +1315,9 @@ void regmap_exit(struct regmap *map)
kfree(async->work_buf);
kfree(async);
}
if (IS_ENABLED(REGMAP_HWSPINLOCK) && map->hwlock)
if (map->hwlock)
hwspin_lock_free(map->hwlock);
kfree_const(map->name);
kfree(map);
}
EXPORT_SYMBOL_GPL(regmap_exit);