[PATCH v2] regulator: mt6358: split ops for buck and linear range LDO regulators

From: Chen-Yu Tsai
Date: Wed Sep 20 2023 - 04:54:56 EST


The buck and linear range LDO (VSRAM_*) regulators share one set of ops.
This set includes support for get/set mode. However this only makes
sense for buck regulators, not LDOs. The callbacks were not checking
whether the register offset and/or mask for mode setting was valid or
not. This ends up making the kernel report "normal" mode operation for
the LDOs.

Create a new set of ops without the get/set mode callbacks for the
linear range LDO regulators.

Fixes: f67ff1bd58f0 ("regulator: mt6358: Add support for MT6358 regulator")
Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
---
Changes since v1:
- Create a new set of ops for the LDOs, as suggested by Mark
- Patch subject updated to match

drivers/regulator/mt6358-regulator.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c
index b9cda2210c33..65fbd95f1dbb 100644
--- a/drivers/regulator/mt6358-regulator.c
+++ b/drivers/regulator/mt6358-regulator.c
@@ -43,7 +43,7 @@ struct mt6358_regulator_info {
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
- .ops = &mt6358_volt_range_ops, \
+ .ops = &mt6358_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##vreg, \
.owner = THIS_MODULE, \
@@ -139,7 +139,7 @@ struct mt6358_regulator_info {
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
- .ops = &mt6358_volt_range_ops, \
+ .ops = &mt6358_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6366_ID_##vreg, \
.owner = THIS_MODULE, \
@@ -450,7 +450,7 @@ static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev)
}
}

-static const struct regulator_ops mt6358_volt_range_ops = {
+static const struct regulator_ops mt6358_buck_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
@@ -464,6 +464,18 @@ static const struct regulator_ops mt6358_volt_range_ops = {
.get_mode = mt6358_regulator_get_mode,
};

+static const struct regulator_ops mt6358_volt_range_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = mt6358_get_buck_voltage_sel,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .get_status = mt6358_get_status,
+};
+
static const struct regulator_ops mt6358_volt_table_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
--
2.42.0.459.ge4e396fd5e-goog