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regmap: Support paging for buses with reg_read()/reg_write()

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We don't currently support paging for regmaps where the I/O happens through
bus provided reg_read() and reg_write() operatons, we simply ignore the
range since nothing is wired up properly. Wire things up.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230324-regmap-reg-read-write-page-v1-1-1fbc0dac67ae@kernel.org
This commit is contained in:
Mark Brown 2023-03-24 22:58:42 +00:00
parent 2d38e8615a
commit f18ee501e2
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GPG Key ID: 24D68B725D5487D0
1 changed files with 18 additions and 0 deletions
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18
drivers/base/regmap/regmap.c
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@ -1945,6 +1945,15 @@ static int _regmap_bus_reg_write(void *context, unsigned int reg,
unsigned int val)
{
struct regmap *map = context;
struct regmap_range_node *range;
int ret;
range = _regmap_range_lookup(map, reg);
if (range) {
ret = _regmap_select_page(map, &reg, range, 1);
if (ret != 0)
return ret;
}
reg = regmap_reg_addr(map, reg);
return map->bus->reg_write(map->bus_context, reg, val);
@ -2842,6 +2851,15 @@ static int _regmap_bus_reg_read(void *context, unsigned int reg,
unsigned int *val)
{
struct regmap *map = context;
struct regmap_range_node *range;
int ret;
range = _regmap_range_lookup(map, reg);
if (range) {
ret = _regmap_select_page(map, &reg, range, 1);
if (ret != 0)
return ret;
}
reg = regmap_reg_addr(map, reg);
return map->bus->reg_read(map->bus_context, reg, val);