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Diffstat (limited to 'drivers/regulator/sm5703-regulator.c')
-rw-r--r--drivers/regulator/sm5703-regulator.c167
1 files changed, 167 insertions, 0 deletions
diff --git a/drivers/regulator/sm5703-regulator.c b/drivers/regulator/sm5703-regulator.c
new file mode 100644
index 000000000..05ad28fc4
--- /dev/null
+++ b/drivers/regulator/sm5703-regulator.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/mfd/sm5703.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
+
+enum sm5703_regulators {
+ SM5703_BUCK,
+ SM5703_LDO1,
+ SM5703_LDO2,
+ SM5703_LDO3,
+ SM5703_USBLDO1,
+ SM5703_USBLDO2,
+ SM5703_VBUS,
+ SM5703_MAX_REGULATORS,
+};
+
+static const int sm5703_ldo_voltagemap[] = {
+ 1500000, 1800000, 2600000, 2800000, 3000000, 3300000,
+};
+
+static const int sm5703_buck_voltagemap[] = {
+ 1000000, 1000000, 1000000, 1000000,
+ 1000000, 1000000, 1000000, 1000000,
+ 1000000, 1000000, 1000000, 1100000,
+ 1200000, 1300000, 1400000, 1500000,
+ 1600000, 1700000, 1800000, 1900000,
+ 2000000, 2100000, 2200000, 2300000,
+ 2400000, 2500000, 2600000, 2700000,
+ 2800000, 2900000, 3000000, 3000000,
+};
+
+#define SM5703USBLDO(_name, _id) \
+ [SM5703_USBLDO ## _id] = { \
+ .name = _name, \
+ .of_match = _name, \
+ .regulators_node = "regulators", \
+ .type = REGULATOR_VOLTAGE, \
+ .id = SM5703_USBLDO ## _id, \
+ .ops = &sm5703_regulator_ops_fixed, \
+ .fixed_uV = SM5703_USBLDO_MICROVOLT, \
+ .enable_reg = SM5703_REG_USBLDO12, \
+ .enable_mask = SM5703_REG_EN_USBLDO ##_id, \
+ .owner = THIS_MODULE, \
+ }
+
+#define SM5703VBUS(_name) \
+ [SM5703_VBUS] = { \
+ .name = _name, \
+ .of_match = _name, \
+ .regulators_node = "regulators", \
+ .type = REGULATOR_VOLTAGE, \
+ .id = SM5703_VBUS, \
+ .ops = &sm5703_regulator_ops_fixed, \
+ .fixed_uV = SM5703_VBUS_MICROVOLT, \
+ .enable_reg = SM5703_REG_CNTL, \
+ .enable_mask = SM5703_OPERATION_MODE_MASK, \
+ .enable_val = SM5703_OPERATION_MODE_USB_OTG_MODE, \
+ .disable_val = SM5703_OPERATION_MODE_CHARGING_ON, \
+ .owner = THIS_MODULE, \
+ }
+
+#define SM5703BUCK(_name) \
+ [SM5703_BUCK] = { \
+ .name = _name, \
+ .of_match = _name, \
+ .regulators_node = "regulators", \
+ .type = REGULATOR_VOLTAGE, \
+ .id = SM5703_BUCK, \
+ .ops = &sm5703_regulator_ops, \
+ .n_voltages = ARRAY_SIZE(sm5703_buck_voltagemap), \
+ .volt_table = sm5703_buck_voltagemap, \
+ .vsel_reg = SM5703_REG_BUCK, \
+ .vsel_mask = SM5703_BUCK_VOLT_MASK, \
+ .enable_reg = SM5703_REG_BUCK, \
+ .enable_mask = SM5703_REG_EN_BUCK, \
+ .owner = THIS_MODULE, \
+ }
+
+#define SM5703LDO(_name, _id) \
+ [SM5703_LDO ## _id] = { \
+ .name = _name, \
+ .of_match = _name, \
+ .regulators_node = "regulators", \
+ .type = REGULATOR_VOLTAGE, \
+ .id = SM5703_LDO ## _id, \
+ .ops = &sm5703_regulator_ops, \
+ .n_voltages = ARRAY_SIZE(sm5703_ldo_voltagemap), \
+ .volt_table = sm5703_ldo_voltagemap, \
+ .vsel_reg = SM5703_REG_LDO ##_id, \
+ .vsel_mask = SM5703_LDO_VOLT_MASK, \
+ .enable_reg = SM5703_REG_LDO ##_id, \
+ .enable_mask = SM5703_LDO_EN, \
+ .owner = THIS_MODULE, \
+ }
+
+static const struct regulator_ops sm5703_regulator_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_table,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+};
+
+static const struct regulator_ops sm5703_regulator_ops_fixed = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+};
+
+static struct regulator_desc sm5703_regulators_desc[SM5703_MAX_REGULATORS] = {
+ SM5703BUCK("buck"),
+ SM5703LDO("ldo1", 1),
+ SM5703LDO("ldo2", 2),
+ SM5703LDO("ldo3", 3),
+ SM5703USBLDO("usbldo1", 1),
+ SM5703USBLDO("usbldo2", 2),
+ SM5703VBUS("vbus"),
+};
+
+static int sm5703_regulator_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct regulator_config config = { NULL, };
+ struct regulator_dev *rdev;
+ struct sm5703_dev *sm5703 = dev_get_drvdata(pdev->dev.parent);
+ int i;
+
+ config.dev = dev->parent;
+ config.regmap = sm5703->regmap;
+
+ for (i = 0; i < SM5703_MAX_REGULATORS; i++) {
+ rdev = devm_regulator_register(dev,
+ &sm5703_regulators_desc[i],
+ &config);
+ if (IS_ERR(rdev))
+ return dev_err_probe(dev, PTR_ERR(rdev),
+ "Failed to register a regulator\n");
+ }
+
+ return 0;
+}
+
+static const struct platform_device_id sm5703_regulator_id[] = {
+ { "sm5703-regulator", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(platform, sm5703_regulator_id);
+
+static struct platform_driver sm5703_regulator_driver = {
+ .driver = {
+ .name = "sm5703-regulator",
+ },
+ .probe = sm5703_regulator_probe,
+ .id_table = sm5703_regulator_id,
+};
+
+module_platform_driver(sm5703_regulator_driver);
+
+MODULE_DESCRIPTION("Silicon Mitus SM5703 LDO/Buck/USB regulator driver");
+MODULE_AUTHOR("Markuss Broks <markuss.broks@gmail.com>");
+MODULE_LICENSE("GPL");