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Merge remote-tracking branch 'regmap/for-5.10' into regmap-next

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This commit is contained in:
Mark Brown
2020-10-05 18:53:24 +01:00
parent 549738f15d 3a6f0fb7b8
commit 6e0545c4f0
9 changed files with 954 additions and 8 deletions
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145
drivers/base/regmap/regmap.c
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@@ -209,6 +209,18 @@ static bool regmap_volatile_range(struct regmap *map, unsigned int reg,
return true;
}
static void regmap_format_12_20_write(struct regmap *map,
unsigned int reg, unsigned int val)
{
u8 *out = map->work_buf;
out[0] = reg >> 4;
out[1] = (reg << 4) | (val >> 16);
out[2] = val >> 8;
out[3] = val;
}
static void regmap_format_2_6_write(struct regmap *map,
unsigned int reg, unsigned int val)
{
@@ -711,13 +723,17 @@ struct regmap *__regmap_init(struct device *dev,
if (ret)
goto err_map;
ret = -EINVAL; /* Later error paths rely on this */
if (config->disable_locking) {
map->lock = map->unlock = regmap_lock_unlock_none;
map->can_sleep = config->can_sleep;
regmap_debugfs_disable(map);
} else if (config->lock && config->unlock) {
map->lock = config->lock;
map->unlock = config->unlock;
map->lock_arg = config->lock_arg;
map->can_sleep = config->can_sleep;
} else if (config->use_hwlock) {
map->hwlock = hwspin_lock_request_specific(config->hwlock_id);
if (!map->hwlock) {
@@ -753,6 +769,7 @@ struct regmap *__regmap_init(struct device *dev,
mutex_init(&map->mutex);
map->lock = regmap_lock_mutex;
map->unlock = regmap_unlock_mutex;
map->can_sleep = true;
lockdep_set_class_and_name(&map->mutex,
lock_key, lock_name);
}
@@ -883,6 +900,16 @@ struct regmap *__regmap_init(struct device *dev,
}
break;
case 12:
switch (config->val_bits) {
case 20:
map->format.format_write = regmap_format_12_20_write;
break;
default:
goto err_hwlock;
}
break;
case 8:
map->format.format_reg = regmap_format_8;
break;
@@ -1243,6 +1270,106 @@ struct regmap_field *devm_regmap_field_alloc(struct device *dev,
}
EXPORT_SYMBOL_GPL(devm_regmap_field_alloc);
/**
* regmap_field_bulk_alloc() - Allocate and initialise a bulk register field.
*
* @regmap: regmap bank in which this register field is located.
* @rm_field: regmap register fields within the bank.
* @reg_field: Register fields within the bank.
* @num_fields: Number of register fields.
*
* The return value will be an -ENOMEM on error or zero for success.
* Newly allocated regmap_fields should be freed by calling
* regmap_field_bulk_free()
*/
int regmap_field_bulk_alloc(struct regmap *regmap,
struct regmap_field **rm_field,
struct reg_field *reg_field,
int num_fields)
{
struct regmap_field *rf;
int i;
rf = kcalloc(num_fields, sizeof(*rf), GFP_KERNEL);
if (!rf)
return -ENOMEM;
for (i = 0; i < num_fields; i++) {
regmap_field_init(&rf[i], regmap, reg_field[i]);
rm_field[i] = &rf[i];
}
return 0;
}
EXPORT_SYMBOL_GPL(regmap_field_bulk_alloc);
/**
* devm_regmap_field_bulk_alloc() - Allocate and initialise a bulk register
* fields.
*
* @dev: Device that will be interacted with
* @regmap: regmap bank in which this register field is located.
* @rm_field: regmap register fields within the bank.
* @reg_field: Register fields within the bank.
* @num_fields: Number of register fields.
*
* The return value will be an -ENOMEM on error or zero for success.
* Newly allocated regmap_fields will be automatically freed by the
* device management code.
*/
int devm_regmap_field_bulk_alloc(struct device *dev,
struct regmap *regmap,
struct regmap_field **rm_field,
struct reg_field *reg_field,
int num_fields)
{
struct regmap_field *rf;
int i;
rf = devm_kcalloc(dev, num_fields, sizeof(*rf), GFP_KERNEL);
if (!rf)
return -ENOMEM;
for (i = 0; i < num_fields; i++) {
regmap_field_init(&rf[i], regmap, reg_field[i]);
rm_field[i] = &rf[i];
}
return 0;
}
EXPORT_SYMBOL_GPL(devm_regmap_field_bulk_alloc);
/**
* regmap_field_bulk_free() - Free register field allocated using
* regmap_field_bulk_alloc.
*
* @field: regmap fields which should be freed.
*/
void regmap_field_bulk_free(struct regmap_field *field)
{
kfree(field);
}
EXPORT_SYMBOL_GPL(regmap_field_bulk_free);
/**
* devm_regmap_field_bulk_free() - Free a bulk register field allocated using
* devm_regmap_field_bulk_alloc.
*
* @dev: Device that will be interacted with
* @field: regmap field which should be freed.
*
* Free register field allocated using devm_regmap_field_bulk_alloc(). Usually
* drivers need not call this function, as the memory allocated via devm
* will be freed as per device-driver life-cycle.
*/
void devm_regmap_field_bulk_free(struct device *dev,
struct regmap_field *field)
{
devm_kfree(dev, field);
}
EXPORT_SYMBOL_GPL(devm_regmap_field_bulk_free);
/**
* devm_regmap_field_free() - Free a register field allocated using
* devm_regmap_field_alloc.
@@ -1365,6 +1492,8 @@ void regmap_exit(struct regmap *map)
}
if (map->hwlock)
hwspin_lock_free(map->hwlock);
if (map->lock == regmap_lock_mutex)
mutex_destroy(&map->mutex);
kfree_const(map->name);
kfree(map->patch);
kfree(map);
@@ -2253,8 +2382,12 @@ static int _regmap_range_multi_paged_reg_write(struct regmap *map,
if (ret != 0)
return ret;
if (regs[i].delay_us)
udelay(regs[i].delay_us);
if (regs[i].delay_us) {
if (map->can_sleep)
fsleep(regs[i].delay_us);
else
udelay(regs[i].delay_us);
}
base += n;
n = 0;
@@ -2290,8 +2423,12 @@ static int _regmap_multi_reg_write(struct regmap *map,
if (ret != 0)
return ret;
if (regs[i].delay_us)
udelay(regs[i].delay_us);
if (regs[i].delay_us) {
if (map->can_sleep)
fsleep(regs[i].delay_us);
else
udelay(regs[i].delay_us);
}
}
return 0;
}