Support the LDO and buck regulators of the Marvell 88PM886 PMIC.
Signed-off-by: Karel Balej
---
Notes:
v6:
- Remove all definitions (now present in the header).
v5:
- Add remaining regulators.
- Clean up includes.
- Address Mark's feedback:
- Use dedicated regmap config.
RFC v4:
- Initialize regulators regmap in the regulators driver.
- Register all regulators at once.
- Drop regulator IDs.
- Add missing '\n' to dev_err_probe message.
- Fix includes.
- Add ID table.
RFC v3:
- Do not have a variable for each regulator -- define them all in the
pm886_regulators array.
- Use new regulators regmap index name.
- Use dev_err_probe.
RFC v2:
- Drop of_compatible and related code.
- Drop unused include.
- Remove some abstraction: use only one regmap for all regulators and
only mention 88PM886 in Kconfig description.
- Reword commit message.
drivers/regulator/88pm886-regulator.c | 476 ++
drivers/regulator/Kconfig | 6 +
drivers/regulator/Makefile| 1 +
3 files changed, 483 insertions(+)
create mode 100644 drivers/regulator/88pm886-regulator.c
diff --git a/drivers/regulator/88pm886-regulator.c
b/drivers/regulator/88pm886-regulator.c
new file mode 100644
index ..7d6e113c93b3
--- /dev/null
+++ b/drivers/regulator/88pm886-regulator.c
@@ -0,0 +1,476 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include
+#include
+#include
+#include
+#include
+
+#include
+
+static const struct regmap_config pm886_regulator_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = PM886_REG_BUCK5_VOUT,
+};
+
+struct pm886_regulator {
+ struct regulator_desc desc;
+ int max_uA;
+};
+
+static int pm886_regulator_get_ilim(struct regulator_dev *rdev)
+{
+ struct pm886_regulator *data = rdev_get_drvdata(rdev);
+
+ if (!data) {
+ dev_err(>dev, "Failed to get regulator data\n");
+ return -EINVAL;
+ }
+ return data->max_uA;
+}
+
+static const struct regulator_ops pm886_ldo_ops = {
+ .list_voltage = regulator_list_voltage_table,
+ .map_voltage = regulator_map_voltage_iterate,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .get_current_limit = pm886_regulator_get_ilim,
+};
+
+static const struct regulator_ops pm886_buck_ops = {
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .get_current_limit = pm886_regulator_get_ilim,
+};
+
+static const unsigned int pm886_ldo_volt_table1[] = {
+ 170, 180, 190, 250, 280, 290, 310, 330,
+};
+
+static const unsigned int pm886_ldo_volt_table2[] = {
+ 120, 125, 170, 180, 185, 190, 250, 260,
+ 270, 275, 280, 285, 290, 300, 310, 330,
+};
+
+static const unsigned int pm886_ldo_volt_table3[] = {
+ 170, 180, 190, 200, 210, 250, 270, 280,
+};
+
+static const struct linear_range pm886_buck_volt_ranges1[] = {
+ REGULATOR_LINEAR_RANGE(60, 0, 79, 12500),
+ REGULATOR_LINEAR_RANGE(160, 80, 84, 5),
+};
+
+static const struct linear_range pm886_buck_volt_ranges2[] = {
+ REGULATOR_LINEAR_RANGE(60, 0, 79, 12500),
+ REGULATOR_LINEAR_RANGE(160, 80, 114, 5),
+};
+
+static struct pm886_regulator pm886_regulators[] = {
+ {
+ .desc = {
+ .name = "LDO1",
+ .regulators_node = "regulators",
+ .of_match = "ldo1",
+ .ops = _ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .enable_reg = PM886_REG_LDO_EN1,
+ .enable_mask = BIT(0),
+ .volt_table = pm886_ldo_volt_table1,
+ .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1),
+ .vsel_reg = PM886_REG_LDO1_VOUT,
+ .vsel_mask = PM886_LDO_VSEL_MASK,
+ },
+ .max_uA = 10,
+ },
+ {
+ .desc = {
+ .name = "LDO2",
+ .regulators_node = "regulators",
+ .of_match = "ldo2",
+ .ops = _ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .enable_reg =
