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path: root/drivers/base/regmap/regmap.c
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Diffstat (limited to 'drivers/base/regmap/regmap.c')
-rw-r--r--drivers/base/regmap/regmap.c49
1 files changed, 37 insertions, 12 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index fe3e38dd5324..21a0c2562ec0 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -533,6 +533,23 @@ __releases(&map->spinlock)
spin_unlock_irqrestore(&map->spinlock, map->spinlock_flags);
}
+static void regmap_lock_raw_spinlock(void *__map)
+__acquires(&map->raw_spinlock)
+{
+ struct regmap *map = __map;
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&map->raw_spinlock, flags);
+ map->raw_spinlock_flags = flags;
+}
+
+static void regmap_unlock_raw_spinlock(void *__map)
+__releases(&map->raw_spinlock)
+{
+ struct regmap *map = __map;
+ raw_spin_unlock_irqrestore(&map->raw_spinlock, map->raw_spinlock_flags);
+}
+
static void dev_get_regmap_release(struct device *dev, void *res)
{
/*
@@ -770,11 +787,19 @@ struct regmap *__regmap_init(struct device *dev,
} else {
if ((bus && bus->fast_io) ||
config->fast_io) {
- spin_lock_init(&map->spinlock);
- map->lock = regmap_lock_spinlock;
- map->unlock = regmap_unlock_spinlock;
- lockdep_set_class_and_name(&map->spinlock,
- lock_key, lock_name);
+ if (config->use_raw_spinlock) {
+ raw_spin_lock_init(&map->raw_spinlock);
+ map->lock = regmap_lock_raw_spinlock;
+ map->unlock = regmap_unlock_raw_spinlock;
+ lockdep_set_class_and_name(&map->raw_spinlock,
+ lock_key, lock_name);
+ } else {
+ spin_lock_init(&map->spinlock);
+ map->lock = regmap_lock_spinlock;
+ map->unlock = regmap_unlock_spinlock;
+ lockdep_set_class_and_name(&map->spinlock,
+ lock_key, lock_name);
+ }
} else {
mutex_init(&map->mutex);
map->lock = regmap_lock_mutex;
@@ -1126,10 +1151,10 @@ skip_format_initialization:
/* Make sure, that this register range has no selector
or data window within its boundary */
for (j = 0; j < config->num_ranges; j++) {
- unsigned sel_reg = config->ranges[j].selector_reg;
- unsigned win_min = config->ranges[j].window_start;
- unsigned win_max = win_min +
- config->ranges[j].window_len - 1;
+ unsigned int sel_reg = config->ranges[j].selector_reg;
+ unsigned int win_min = config->ranges[j].window_start;
+ unsigned int win_max = win_min +
+ config->ranges[j].window_len - 1;
/* Allow data window inside its own virtual range */
if (j == i)
@@ -1298,7 +1323,7 @@ EXPORT_SYMBOL_GPL(devm_regmap_field_alloc);
*/
int regmap_field_bulk_alloc(struct regmap *regmap,
struct regmap_field **rm_field,
- struct reg_field *reg_field,
+ const struct reg_field *reg_field,
int num_fields)
{
struct regmap_field *rf;
@@ -1334,7 +1359,7 @@ EXPORT_SYMBOL_GPL(regmap_field_bulk_alloc);
int devm_regmap_field_bulk_alloc(struct device *dev,
struct regmap *regmap,
struct regmap_field **rm_field,
- struct reg_field *reg_field,
+ const struct reg_field *reg_field,
int num_fields)
{
struct regmap_field *rf;
@@ -1667,7 +1692,7 @@ static int _regmap_raw_write_impl(struct regmap *map, unsigned int reg,
if (ret) {
dev_err(map->dev,
"Error in caching of register: %x ret: %d\n",
- reg + i, ret);
+ reg + regmap_get_offset(map, i), ret);
return ret;
}
}