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Diffstat (limited to 'drivers/base/regmap')
-rw-r--r--drivers/base/regmap/internal.h6
-rw-r--r--drivers/base/regmap/regcache.c2
-rw-r--r--drivers/base/regmap/regmap-irq.c4
-rw-r--r--drivers/base/regmap/regmap.c9
4 files changed, 12 insertions, 9 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index b2b2849fc6d3..d744ae3926dd 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -139,8 +139,10 @@ struct regmap {
struct reg_default *patch;
int patch_regs;
- /* if set, converts bulk rw to single rw */
- bool use_single_rw;
+ /* if set, converts bulk read to single read */
+ bool use_single_read;
+ /* if set, converts bulk read to single read */
+ bool use_single_write;
/* if set, the device supports multi write mode */
bool can_multi_write;
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index b9862d741a56..6f8a13ec32a4 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -729,7 +729,7 @@ int regcache_sync_block(struct regmap *map, void *block,
unsigned int block_base, unsigned int start,
unsigned int end)
{
- if (regmap_can_raw_write(map) && !map->use_single_rw)
+ if (regmap_can_raw_write(map) && !map->use_single_write)
return regcache_sync_block_raw(map, block, cache_present,
block_base, start, end);
else
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 2597600a5d26..38d1f72d869c 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -209,7 +209,7 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
* Read in the statuses, using a single bulk read if possible
* in order to reduce the I/O overheads.
*/
- if (!map->use_single_rw && map->reg_stride == 1 &&
+ if (!map->use_single_read && map->reg_stride == 1 &&
data->irq_reg_stride == 1) {
u8 *buf8 = data->status_reg_buf;
u16 *buf16 = data->status_reg_buf;
@@ -398,7 +398,7 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
else
d->irq_reg_stride = 1;
- if (!map->use_single_rw && map->reg_stride == 1 &&
+ if (!map->use_single_read && map->reg_stride == 1 &&
d->irq_reg_stride == 1) {
d->status_reg_buf = kmalloc(map->format.val_bytes *
chip->num_regs, GFP_KERNEL);
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 90bf5ea34c47..bc82fd34483b 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -576,7 +576,8 @@ struct regmap *regmap_init(struct device *dev,
map->reg_stride = config->reg_stride;
else
map->reg_stride = 1;
- map->use_single_rw = config->use_single_rw;
+ map->use_single_read = config->use_single_rw || !bus || !bus->read;
+ map->use_single_write = config->use_single_rw || !bus || !bus->write;
map->can_multi_write = config->can_multi_write;
map->dev = dev;
map->bus = bus;
@@ -766,7 +767,7 @@ struct regmap *regmap_init(struct device *dev,
if ((reg_endian != REGMAP_ENDIAN_BIG) ||
(val_endian != REGMAP_ENDIAN_BIG))
goto err_map;
- map->use_single_rw = true;
+ map->use_single_write = true;
}
if (!map->format.format_write &&
@@ -1720,7 +1721,7 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
}
out:
map->unlock(map->lock_arg);
- } else if (map->use_single_rw) {
+ } else if (map->use_single_write) {
map->lock(map->lock_arg);
for (i = 0; i < val_count; i++) {
ret = _regmap_raw_write(map,
@@ -2312,7 +2313,7 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
* Some devices does not support bulk read, for
* them we have a series of single read operations.
*/
- if (map->use_single_rw) {
+ if (map->use_single_read) {
for (i = 0; i < val_count; i++) {
ret = regmap_raw_read(map,
reg + (i * map->reg_stride),