regmap: Use reg_sequence for multi_reg_write / register_patch
Separate the functionality using sequences of register writes from the
functions that take register defaults. This change renames the arguments
in order to support the extension of reg_sequence to take an optional
delay to be applied after any given register in a sequence is written.
This avoids adding an int to all register defaults, which could
substantially increase memory usage for regmaps with large default tables.
This also updates all the clients of multi_reg_write/register_patch.
Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 7111d04..2cbb450 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1743,7 +1743,7 @@
* relative. The page register has been written if that was neccessary.
*/
static int _regmap_raw_multi_reg_write(struct regmap *map,
- const struct reg_default *regs,
+ const struct reg_sequence *regs,
size_t num_regs)
{
int ret;
@@ -1800,12 +1800,12 @@
}
static int _regmap_range_multi_paged_reg_write(struct regmap *map,
- struct reg_default *regs,
+ struct reg_sequence *regs,
size_t num_regs)
{
int ret;
int i, n;
- struct reg_default *base;
+ struct reg_sequence *base;
unsigned int this_page = 0;
/*
* the set of registers are not neccessarily in order, but
@@ -1843,7 +1843,7 @@
}
static int _regmap_multi_reg_write(struct regmap *map,
- const struct reg_default *regs,
+ const struct reg_sequence *regs,
size_t num_regs)
{
int i;
@@ -1895,8 +1895,8 @@
struct regmap_range_node *range;
range = _regmap_range_lookup(map, reg);
if (range) {
- size_t len = sizeof(struct reg_default)*num_regs;
- struct reg_default *base = kmemdup(regs, len,
+ size_t len = sizeof(struct reg_sequence)*num_regs;
+ struct reg_sequence *base = kmemdup(regs, len,
GFP_KERNEL);
if (!base)
return -ENOMEM;
@@ -1929,7 +1929,7 @@
* A value of zero will be returned on success, a negative errno will be
* returned in error cases.
*/
-int regmap_multi_reg_write(struct regmap *map, const struct reg_default *regs,
+int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs,
int num_regs)
{
int ret;
@@ -1962,7 +1962,7 @@
* be returned in error cases.
*/
int regmap_multi_reg_write_bypassed(struct regmap *map,
- const struct reg_default *regs,
+ const struct reg_sequence *regs,
int num_regs)
{
int ret;
@@ -2552,10 +2552,10 @@
* The caller must ensure that this function cannot be called
* concurrently with either itself or regcache_sync().
*/
-int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
+int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs,
int num_regs)
{
- struct reg_default *p;
+ struct reg_sequence *p;
int ret;
bool bypass;
@@ -2564,7 +2564,7 @@
return 0;
p = krealloc(map->patch,
- sizeof(struct reg_default) * (map->patch_regs + num_regs),
+ sizeof(struct reg_sequence) * (map->patch_regs + num_regs),
GFP_KERNEL);
if (p) {
memcpy(p + map->patch_regs, regs, num_regs * sizeof(*regs));