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-rw-r--r--drivers/regulator/Kconfig2
-rw-r--r--drivers/regulator/act8865-regulator.c113
-rw-r--r--drivers/regulator/as3722-regulator.c65
-rw-r--r--drivers/regulator/axp20x-regulator.c15
-rw-r--r--drivers/regulator/core.c279
-rw-r--r--drivers/regulator/da9063-regulator.c2
-rw-r--r--drivers/regulator/gpio-regulator.c2
-rw-r--r--drivers/regulator/helpers.c2
-rw-r--r--drivers/regulator/of_regulator.c6
-rw-r--r--drivers/regulator/s2mps11.c28
-rw-r--r--drivers/regulator/tps65912-regulator.c613
11 files changed, 476 insertions, 651 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 91040ec8e242..c77dc08b1202 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -788,7 +788,7 @@ config REGULATOR_TPS65910
config REGULATOR_TPS65912
tristate "TI TPS65912 Power regulator"
- depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
+ depends on MFD_TPS65912
help
This driver supports TPS65912 voltage regulator chip.
diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c
index 000d566e32a4..a1cd0d4f8257 100644
--- a/drivers/regulator/act8865-regulator.c
+++ b/drivers/regulator/act8865-regulator.c
@@ -139,6 +139,74 @@ struct act8865 {
int off_mask;
};
+static const struct regmap_range act8600_reg_ranges[] = {
+ regmap_reg_range(0x00, 0x01),
+ regmap_reg_range(0x10, 0x10),
+ regmap_reg_range(0x12, 0x12),
+ regmap_reg_range(0x20, 0x20),
+ regmap_reg_range(0x22, 0x22),
+ regmap_reg_range(0x30, 0x30),
+ regmap_reg_range(0x32, 0x32),
+ regmap_reg_range(0x40, 0x41),
+ regmap_reg_range(0x50, 0x51),
+ regmap_reg_range(0x60, 0x61),
+ regmap_reg_range(0x70, 0x71),
+ regmap_reg_range(0x80, 0x81),
+ regmap_reg_range(0x91, 0x91),
+ regmap_reg_range(0xA1, 0xA1),
+ regmap_reg_range(0xA8, 0xAA),
+ regmap_reg_range(0xB0, 0xB0),
+ regmap_reg_range(0xB2, 0xB2),
+ regmap_reg_range(0xC1, 0xC1),
+};
+
+static const struct regmap_range act8600_reg_ro_ranges[] = {
+ regmap_reg_range(0xAA, 0xAA),
+ regmap_reg_range(0xC1, 0xC1),
+};
+
+static const struct regmap_range act8600_reg_volatile_ranges[] = {
+ regmap_reg_range(0x00, 0x01),
+ regmap_reg_range(0x12, 0x12),
+ regmap_reg_range(0x22, 0x22),
+ regmap_reg_range(0x32, 0x32),
+ regmap_reg_range(0x41, 0x41),
+ regmap_reg_range(0x51, 0x51),
+ regmap_reg_range(0x61, 0x61),
+ regmap_reg_range(0x71, 0x71),
+ regmap_reg_range(0x81, 0x81),
+ regmap_reg_range(0xA8, 0xA8),
+ regmap_reg_range(0xAA, 0xAA),
+ regmap_reg_range(0xB0, 0xB0),
+ regmap_reg_range(0xC1, 0xC1),
+};
+
+static const struct regmap_access_table act8600_write_ranges_table = {
+ .yes_ranges = act8600_reg_ranges,
+ .n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges),
+ .no_ranges = act8600_reg_ro_ranges,
+ .n_no_ranges = ARRAY_SIZE(act8600_reg_ro_ranges),
+};
+
+static const struct regmap_access_table act8600_read_ranges_table = {
+ .yes_ranges = act8600_reg_ranges,
+ .n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges),
+};
+
+static const struct regmap_access_table act8600_volatile_ranges_table = {
+ .yes_ranges = act8600_reg_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(act8600_reg_volatile_ranges),
+};
+
+static const struct regmap_config act8600_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0xFF,
+ .wr_table = &act8600_write_ranges_table,
+ .rd_table = &act8600_read_ranges_table,
+ .volatile_table = &act8600_volatile_ranges_table,
+};
+
static const struct regmap_config act8865_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -319,7 +387,6 @@ static struct of_regulator_match act8600_matches[] = {
};
static int act8865_pdata_from_dt(struct device *dev,
- struct device_node **of_node,
struct act8865_platform_data *pdata,
unsigned long type)
{
@@ -370,7 +437,7 @@ static int act8865_pdata_from_dt(struct device *dev,
regulator->id = i;
regulator->name = matches[i].name;
regulator->init_data = matches[i].init_data;
- of_node[i] = matches[i].of_node;
+ regulator->of_node = matches[i].of_node;
regulator++;
}
@@ -378,7 +445,6 @@ static int act8865_pdata_from_dt(struct device *dev,
}
#else
static inline int act8865_pdata_from_dt(struct device *dev,
- struct device_node **of_node,
struct act8865_platform_data *pdata,
unsigned long type)
{
@@ -386,8 +452,8 @@ static inline int act8865_pdata_from_dt(struct device *dev,
}
#endif
-static struct regulator_init_data
-*act8865_get_init_data(int id, struct act8865_platform_data *pdata)
+static struct act8865_regulator_data *act8865_get_regulator_data(
+ int id, struct act8865_platform_data *pdata)
{
int i;
@@ -396,7 +462,7 @@ static struct regulator_init_data
for (i = 0; i < pdata->num_regulators; i++) {
if (pdata->regulators[i].id == id)
- return pdata->regulators[i].init_data;
+ return &pdata->regulators[i];
}
return NULL;
@@ -418,9 +484,9 @@ static int act8865_pmic_probe(struct i2c_client *client,
const struct regulator_desc *regulators;
struct act8865_platform_data pdata_of, *pdata;
struct device *dev = &client->dev;
- struct device_node **of_node;
int i, ret, num_regulators;
struct act8865 *act8865;
+ const struct regmap_config *regmap_config;
unsigned long type;
int off_reg, off_mask;
int voltage_select = 0;
@@ -447,12 +513,14 @@ static int act8865_pmic_probe(struct i2c_client *client,
case ACT8600:
regulators = act8600_regulators;
num_regulators = ARRAY_SIZE(act8600_regulators);
+ regmap_config = &act8600_regmap_config;
off_reg = -1;
off_mask = -1;
break;
case ACT8846:
regulators = act8846_regulators;
num_regulators = ARRAY_SIZE(act8846_regulators);
+ regmap_config = &act8865_regmap_config;
off_reg = ACT8846_GLB_OFF_CTRL;
off_mask = ACT8846_OFF_SYSMASK;
break;
@@ -464,6 +532,7 @@ static int act8865_pmic_probe(struct i2c_client *client,
regulators = act8865_regulators;
num_regulators = ARRAY_SIZE(act8865_regulators);
}
+ regmap_config = &act8865_regmap_config;
off_reg = ACT8865_SYS_CTRL;
off_mask = ACT8865_MSTROFF;
break;
@@ -472,34 +541,22 @@ static int act8865_pmic_probe(struct i2c_client *client,
return -EINVAL;
}
- of_node = devm_kzalloc(dev, sizeof(struct device_node *) *
- num_regulators, GFP_KERNEL);
- if (!of_node)
- return -ENOMEM;
-
if (dev->of_node && !pdata) {
- ret = act8865_pdata_from_dt(dev, of_node, &pdata_of, type);
+ ret = act8865_pdata_from_dt(dev, &pdata_of, type);
if (ret < 0)
return ret;
pdata = &pdata_of;
}
- if (pdata->num_regulators > num_regulators) {
- dev_err(dev, "too many regulators: %d\n",
- pdata->num_regulators);
- return -EINVAL;
- }
-
act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
if (!act8865)
return -ENOMEM;
- act8865->regmap = devm_regmap_init_i2c(client, &act8865_regmap_config);
+ act8865->regmap = devm_regmap_init_i2c(client, regmap_config);
if (IS_ERR(act8865->regmap)) {
ret = PTR_ERR(act8865->regmap);
- dev_err(&client->dev, "Failed to allocate register map: %d\n",
- ret);
+ dev_err(dev, "Failed to allocate register map: %d\n", ret);
return ret;
}
@@ -518,15 +575,20 @@ static int act8865_pmic_probe(struct i2c_client *client,
for (i = 0; i < num_regulators; i++) {
const struct regulator_desc *desc = &regulators[i];
struct regulator_config config = { };
+ struct act8865_regulator_data *rdata;
struct regulator_dev *rdev;
config.dev = dev;
- config.init_data = act8865_get_init_data(desc->id, pdata);
- config.of_node = of_node[i];
config.driver_data = act8865;
config.regmap = act8865->regmap;
- rdev = devm_regulator_register(&client->dev, desc, &config);
+ rdata = act8865_get_regulator_data(desc->id, pdata);
+ if (rdata) {
+ config.init_data = rdata->init_data;
+ config.of_node = rdata->of_node;
+ }
+
+ rdev = devm_regulator_register(dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(dev, "failed to register %s\n", desc->name);
return PTR_ERR(rdev);
@@ -534,7 +596,6 @@ static int act8865_pmic_probe(struct i2c_client *client,
}
i2c_set_clientdata(client, act8865);
- devm_kfree(dev, of_node);
return 0;
}
diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
index 8b046eec6ae0..66337e12719b 100644
--- a/drivers/regulator/as3722-regulator.c
+++ b/drivers/regulator/as3722-regulator.c
@@ -372,7 +372,7 @@ static int as3722_ldo_set_current_limit(struct regulator_dev *rdev,
AS3722_LDO_ILIMIT_MASK, reg);
}
-static struct regulator_ops as3722_ldo0_ops = {
+static const struct regulator_ops as3722_ldo0_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@@ -383,7 +383,7 @@ static struct regulator_ops as3722_ldo0_ops = {
.set_current_limit = as3722_ldo_set_current_limit,
};
-static struct regulator_ops as3722_ldo0_extcntrl_ops = {
+static const struct regulator_ops as3722_ldo0_extcntrl_ops = {
.list_voltage = regulator_list_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
@@ -415,7 +415,7 @@ static int as3722_ldo3_get_current_limit(struct regulator_dev *rdev)
return 150000;
}
-static struct regulator_ops as3722_ldo3_ops = {
+static const struct regulator_ops as3722_ldo3_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@@ -425,20 +425,45 @@ static struct regulator_ops as3722_ldo3_ops = {
.get_current_limit = as3722_ldo3_get_current_limit,
};
-static struct regulator_ops as3722_ldo3_extcntrl_ops = {
+static const struct regulator_ops as3722_ldo3_extcntrl_ops = {
.list_voltage = regulator_list_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_current_limit = as3722_ldo3_get_current_limit,
};
+static const struct regulator_ops as3722_ldo6_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .get_current_limit = as3722_ldo_get_current_limit,
+ .set_current_limit = as3722_ldo_set_current_limit,
+ .get_bypass = regulator_get_bypass_regmap,
+ .set_bypass = regulator_set_bypass_regmap,
+};
+
+static const struct regulator_ops as3722_ldo6_extcntrl_ops = {
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .get_current_limit = as3722_ldo_get_current_limit,
+ .set_current_limit = as3722_ldo_set_current_limit,
+ .get_bypass = regulator_get_bypass_regmap,
+ .set_bypass = regulator_set_bypass_regmap,
+};
+
static const struct regulator_linear_range as3722_ldo_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0),
REGULATOR_LINEAR_RANGE(825000, 0x01, 0x24, 25000),
REGULATOR_LINEAR_RANGE(1725000, 0x40, 0x7F, 25000),
};
-static struct regulator_ops as3722_ldo_ops = {
+static const struct regulator_ops as3722_ldo_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@@ -450,7 +475,7 @@ static struct regulator_ops as3722_ldo_ops = {
.set_current_limit = as3722_ldo_set_current_limit,
};
-static struct regulator_ops as3722_ldo_extcntrl_ops = {
+static const struct regulator_ops as3722_ldo_extcntrl_ops = {
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -616,7 +641,7 @@ static const struct regulator_linear_range as3722_sd2345_ranges[] = {
REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7F, 50000),
};
-static struct regulator_ops as3722_sd016_ops = {
+static const struct regulator_ops as3722_sd016_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@@ -630,7 +655,7 @@ static struct regulator_ops as3722_sd016_ops = {
.set_mode = as3722_sd_set_mode,
};
-static struct regulator_ops as3722_sd016_extcntrl_ops = {
+static const struct regulator_ops as3722_sd016_extcntrl_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -641,7 +666,7 @@ static struct regulator_ops as3722_sd016_extcntrl_ops = {
.set_mode = as3722_sd_set_mode,
};
-static struct regulator_ops as3722_sd2345_ops = {
+static const struct regulator_ops as3722_sd2345_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@@ -653,7 +678,7 @@ static struct regulator_ops as3722_sd2345_ops = {
.set_mode = as3722_sd_set_mode,
};
-static struct regulator_ops as3722_sd2345_extcntrl_ops = {
+static const struct regulator_ops as3722_sd2345_extcntrl_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
@@ -760,7 +785,7 @@ static int as3722_regulator_probe(struct platform_device *pdev)
struct as3722_regulator_config_data *reg_config;
struct regulator_dev *rdev;
struct regulator_config config = { };
- struct regulator_ops *ops;
+ const struct regulator_ops *ops;
int id;
int ret;
@@ -829,6 +854,24 @@ static int as3722_regulator_probe(struct platform_device *pdev)
}
}
break;
+ case AS3722_REGULATOR_ID_LDO6:
+ if (reg_config->ext_control)
+ ops = &as3722_ldo6_extcntrl_ops;
+ else
+ ops = &as3722_ldo6_ops;
+ as3722_regs->desc[id].enable_time = 500;
+ as3722_regs->desc[id].bypass_reg =
+ AS3722_LDO6_VOLTAGE_REG;
+ as3722_regs->desc[id].bypass_mask =
+ AS3722_LDO_VSEL_MASK;
+ as3722_regs->desc[id].bypass_val_on =
+ AS3722_LDO6_VSEL_BYPASS;
+ as3722_regs->desc[id].bypass_val_off =
+ AS3722_LDO6_VSEL_BYPASS;
+ as3722_regs->desc[id].linear_ranges = as3722_ldo_ranges;
+ as3722_regs->desc[id].n_linear_ranges =
+ ARRAY_SIZE(as3722_ldo_ranges);
+ break;
case AS3722_REGULATOR_ID_SD0:
case AS3722_REGULATOR_ID_SD1:
case AS3722_REGULATOR_ID_SD6:
diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index 214e815e98eb..514a5e8fdbab 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -157,7 +157,9 @@ static struct regulator_ops axp20x_ops_sw = {
static const struct regulator_linear_range axp20x_ldo4_ranges[] = {
REGULATOR_LINEAR_RANGE(1250000, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(1300000, 0x1, 0x8, 100000),
- REGULATOR_LINEAR_RANGE(2500000, 0x9, 0xf, 100000),
+ REGULATOR_LINEAR_RANGE(2500000, 0x9, 0x9, 0),
+ REGULATOR_LINEAR_RANGE(2700000, 0xa, 0xb, 100000),
+ REGULATOR_LINEAR_RANGE(3000000, 0xc, 0xf, 100000),
};
static const struct regulator_desc axp20x_regulators[] = {
@@ -215,10 +217,14 @@ static const struct regulator_desc axp22x_regulators[] = {
AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
AXP_DESC(AXP22X, ELDO3, "eldo3", "eldoin", 700, 3300, 100,
AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
- AXP_DESC_IO(AXP22X, LDO_IO0, "ldo_io0", "ips", 1800, 3300, 100,
+ /* Note the datasheet only guarantees reliable operation up to
+ * 3.3V, this needs to be enforced via dts provided constraints */
+ AXP_DESC_IO(AXP22X, LDO_IO0, "ldo_io0", "ips", 700, 3800, 100,
AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
- AXP_DESC_IO(AXP22X, LDO_IO1, "ldo_io1", "ips", 1800, 3300, 100,
+ /* Note the datasheet only guarantees reliable operation up to
+ * 3.3V, this needs to be enforced via dts provided constraints */
+ AXP_DESC_IO(AXP22X, LDO_IO1, "ldo_io1", "ips", 700, 3800, 100,
AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
AXP_DESC_FIXED(AXP22X, RTC_LDO, "rtc_ldo", "ips", 3000),
@@ -238,6 +244,7 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
step = 75;
break;
case AXP221_ID:
+ case AXP223_ID:
min = 1800;
max = 4050;
def = 3000;
@@ -316,6 +323,7 @@ static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 work
break;
case AXP221_ID:
+ case AXP223_ID:
if (id < AXP22X_DCDC1 || id > AXP22X_DCDC5)
return -EINVAL;
@@ -354,6 +362,7 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
nregulators = AXP20X_REG_ID_MAX;
break;
case AXP221_ID:
+ case AXP223_ID:
regulators = axp22x_regulators;
nregulators = AXP22X_REG_ID_MAX;
break;
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index e0b764284773..ec8184d53f13 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -132,6 +132,19 @@ static bool have_full_constraints(void)
return has_full_constraints || of_have_populated_dt();
}
+static bool regulator_ops_is_valid(struct regulator_dev *rdev, int ops)
+{
+ if (!rdev->constraints) {
+ rdev_err(rdev, "no constraints\n");
+ return false;
+ }
+
+ if (rdev->constraints->valid_ops_mask & ops)
+ return true;
+
+ return false;
+}
+
static inline struct regulator_dev *rdev_get_supply(struct regulator_dev *rdev)
{
if (rdev && rdev->supply)
@@ -198,28 +211,13 @@ static struct device_node *of_get_regulator(struct device *dev, const char *supp
return regnode;
}
-static int _regulator_can_change_status(struct regulator_dev *rdev)
-{
- if (!rdev->constraints)
- return 0;
-
- if (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_STATUS)
- return 1;
- else
- return 0;
-}
-
/* Platform voltage constraint check */
static int regulator_check_voltage(struct regulator_dev *rdev,
int *min_uV, int *max_uV)
{
BUG_ON(*min_uV > *max_uV);
- if (!rdev->constraints) {
- rdev_err(rdev, "no constraints\n");
- return -ENODEV;
- }
- if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE)) {
rdev_err(rdev, "voltage operation not allowed\n");
return -EPERM;
}
@@ -275,11 +273,7 @@ static int regulator_check_current_limit(struct regulator_dev *rdev,
{
BUG_ON(*min_uA > *max_uA);
- if (!rdev->constraints) {
- rdev_err(rdev, "no constraints\n");
- return -ENODEV;
- }
- if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_CURRENT)) {
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_CURRENT)) {
rdev_err(rdev, "current operation not allowed\n");
return -EPERM;
}
@@ -312,11 +306,7 @@ static int regulator_mode_constrain(struct regulator_dev *rdev, int *mode)
return -EINVAL;
}
- if (!rdev->constraints) {
- rdev_err(rdev, "no constraints\n");
- return -ENODEV;
- }
- if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_MODE)) {
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_MODE)) {
rdev_err(rdev, "mode operation not allowed\n");
return -EPERM;
}
@@ -333,20 +323,6 @@ static int regulator_mode_constrain(struct regulator_dev *rdev, int *mode)
return -EINVAL;
}
-/* dynamic regulator mode switching constraint check */
-static int regulator_check_drms(struct regulator_dev *rdev)
-{
- if (!rdev->constraints) {
- rdev_err(rdev, "no constraints\n");
- return -ENODEV;
- }
- if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_DRMS)) {
- rdev_dbg(rdev, "drms operation not allowed\n");
- return -EPERM;
- }
- return 0;
-}
-
static ssize_t regulator_uV_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -692,8 +668,7 @@ static int drms_uA_update(struct regulator_dev *rdev)
* first check to see if we can set modes at all, otherwise just
* tell the consumer everything is OK.
*/
- err = regulator_check_drms(rdev);
- if (err < 0)
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_DRMS))
return 0;
if (!rdev->desc->ops->get_optimum_mode &&
@@ -808,8 +783,6 @@ static int suspend_set_state(struct regulator_dev *rdev,
/* locks held by caller */
static int suspend_prepare(struct regulator_dev *rdev, suspend_state_t state)
{
- lockdep_assert_held_once(&rdev->mutex);
-
if (!rdev->constraints)
return -EINVAL;
@@ -893,7 +866,7 @@ static void print_constraints(struct regulator_dev *rdev)
rdev_dbg(rdev, "%s\n", buf);
if ((constraints->min_uV != constraints->max_uV) &&
- !(constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE))
+ !regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE))
rdev_warn(rdev,
"Voltage range but no REGULATOR_CHANGE_VOLTAGE\n");
}
@@ -906,7 +879,8 @@ static int machine_constraints_voltage(struct regulator_dev *rdev,
/* do we need to apply the constraint voltage */
if (rdev->constraints->apply_uV &&
- rdev->constraints->min_uV == rdev->constraints->max_uV) {
+ rdev->constraints->min_uV && rdev->constraints->max_uV) {
+ int target_min, target_max;
int current_uV = _regulator_get_voltage(rdev);
if (current_uV < 0) {
rdev_err(rdev,
@@ -914,15 +888,34 @@ static int machine_constraints_voltage(struct regulator_dev *rdev,
current_uV);
return current_uV;
}
- if (current_uV < rdev->constraints->min_uV ||
- current_uV > rdev->constraints->max_uV) {
+
+ /*
+ * If we're below the minimum voltage move up to the
+ * minimum voltage, if we're above the maximum voltage
+ * then move down to the maximum.
+ */
+ target_min = current_uV;
+ target_max = current_uV;
+
+ if (current_uV < rdev->constraints->min_uV) {
+ target_min = rdev->constraints->min_uV;
+ target_max = rdev->constraints->min_uV;
+ }
+
+ if (current_uV > rdev->constraints->max_uV) {
+ target_min = rdev->constraints->max_uV;
+ target_max = rdev->constraints->max_uV;
+ }
+
+ if (target_min != current_uV || target_max != current_uV) {
+ rdev_info(rdev, "Bringing %duV into %d-%duV\n",
+ current_uV, target_min, target_max);
ret = _regulator_do_set_voltage(
- rdev, rdev->constraints->min_uV,
- rdev->constraints->max_uV);
+ rdev, target_min, target_max);
if (ret < 0) {
rdev_err(rdev,
- "failed to apply %duV constraint(%d)\n",
- rdev->constraints->min_uV, ret);
+ "failed to apply %d-%duV constraint(%d)\n",
+ target_min, target_max, ret);
return ret;
}
}
@@ -1150,17 +1143,6 @@ static int set_machine_constraints(struct regulator_dev *rdev,
}
}
- if (rdev->constraints->active_discharge && ops->set_active_discharge) {
- bool ad_state = (rdev->constraints->active_discharge ==
- REGULATOR_ACTIVE_DISCHARGE_ENABLE) ? true : false;
-
- ret = ops->set_active_discharge(rdev, ad_state);
- if (ret < 0) {
- rdev_err(rdev, "failed to set active discharge\n");
- return ret;
- }
- }
-
print_constraints(rdev);
return 0;
}
@@ -1272,6 +1254,55 @@ static void unset_regulator_supplies(struct regulator_dev *rdev)
}
}
+#ifdef CONFIG_DEBUG_FS
+static ssize_t constraint_flags_read_file(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ const struct regulator *regulator = file->private_data;
+ const struct regulation_constraints *c = regulator->rdev->constraints;
+ char *buf;
+ ssize_t ret;
+
+ if (!c)
+ return 0;
+
+ buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = snprintf(buf, PAGE_SIZE,
+ "always_on: %u\n"
+ "boot_on: %u\n"
+ "apply_uV: %u\n"
+ "ramp_disable: %u\n"
+ "soft_start: %u\n"
+ "pull_down: %u\n"
+ "over_current_protection: %u\n",
+ c->always_on,
+ c->boot_on,
+ c->apply_uV,
+ c->ramp_disable,
+ c->soft_start,
+ c->pull_down,
+ c->over_current_protection);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+ kfree(buf);
+
+ return ret;
+}
+
+#endif
+
+static const struct file_operations constraint_flags_fops = {
+#ifdef CONFIG_DEBUG_FS
+ .open = simple_open,
+ .read = constraint_flags_read_file,
+ .llseek = default_llseek,
+#endif
+};
+
#define REG_STR_SIZE 64
static struct regulator *create_regulator(struct regulator_dev *rdev,
@@ -1327,6 +1358,9 @@ static struct regulator *create_regulator(struct regulator_dev *rdev,
&regulator->min_uV);
debugfs_create_u32("max_uV", 0444, regulator->debugfs,
&regulator->max_uV);
+ debugfs_create_file("constraint_flags", 0444,
+ regulator->debugfs, regulator,
+ &constraint_flags_fops);
}
/*
@@ -1334,7 +1368,7 @@ static struct regulator *create_regulator(struct regulator_dev *rdev,
* it is then we don't need to do nearly so much work for
* enable/disable calls.
*/
- if (!_regulator_can_change_status(rdev) &&
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_STATUS) &&
_regulator_is_enabled(rdev))
regulator->always_on = true;
@@ -1532,10 +1566,11 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
}
/* Cascade always-on state to supply */
- if (_regulator_is_enabled(rdev) && rdev->supply) {
+ if (_regulator_is_enabled(rdev)) {
ret = regulator_enable(rdev->supply);
if (ret < 0) {
_regulator_put(rdev->supply);
+ rdev->supply = NULL;
return ret;
}
}
@@ -2111,15 +2146,15 @@ static int _regulator_enable(struct regulator_dev *rdev)
lockdep_assert_held_once(&rdev->mutex);
/* check voltage and requested load before enabling */
- if (rdev->constraints &&
- (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_DRMS))
+ if (regulator_ops_is_valid(rdev, REGULATOR_CHANGE_DRMS))
drms_uA_update(rdev);
if (rdev->use_count == 0) {
/* The regulator may on if it's not switchable or left on */
ret = _regulator_is_enabled(rdev);
if (ret == -EINVAL || ret == 0) {
- if (!_regulator_can_change_status(rdev))
+ if (!regulator_ops_is_valid(rdev,
+ REGULATOR_CHANGE_STATUS))
return -EPERM;
ret = _regulator_do_enable(rdev);
@@ -2221,7 +2256,7 @@ static int _regulator_disable(struct regulator_dev *rdev)
(rdev->constraints && !rdev->constraints->always_on)) {
/* we are last user */
- if (_regulator_can_change_status(rdev)) {
+ if (regulator_ops_is_valid(rdev, REGULATOR_CHANGE_STATUS)) {
ret = _notifier_call_chain(rdev,
REGULATOR_EVENT_PRE_DISABLE,
NULL);
@@ -2242,10 +2277,7 @@ static int _regulator_disable(struct regulator_dev *rdev)
rdev->use_count = 0;
} else if (rdev->use_count > 1) {
-
- if (rdev->constraints &&
- (rdev->constraints->valid_ops_mask &
- REGULATOR_CHANGE_DRMS))
+ if (regulator_ops_is_valid(rdev, REGULATOR_CHANGE_DRMS))
drms_uA_update(rdev);
rdev->use_count--;
@@ -2489,8 +2521,7 @@ int regulator_can_change_voltage(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
- if (rdev->constraints &&
- (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
+ if (regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE)) {
if (rdev->desc->n_voltages - rdev->desc->linear_min_sel > 1)
return 1;
@@ -2644,7 +2675,7 @@ int regulator_is_supported_voltage(struct regulator *regulator,
int i, voltages, ret;
/* If we can't change voltage check the current voltage */
- if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE)) {
ret = regulator_get_voltage(regulator);
if (ret >= 0)
return min_uV <= ret && ret <= max_uV;
@@ -2850,7 +2881,7 @@ static int regulator_set_voltage_unlocked(struct regulator *regulator,
* return successfully even though the regulator does not support
* changing the voltage.
*/
- if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE)) {
current_uV = _regulator_get_voltage(rdev);
if (min_uV <= current_uV && current_uV <= max_uV) {
regulator->min_uV = min_uV;
@@ -3109,6 +3140,23 @@ EXPORT_SYMBOL_GPL(regulator_sync_voltage);
static int _regulator_get_voltage(struct regulator_dev *rdev)
{
int sel, ret;
+ bool bypassed;
+
+ if (rdev->desc->ops->get_bypass) {
+ ret = rdev->desc->ops->get_bypass(rdev, &bypassed);
+ if (ret < 0)
+ return ret;
+ if (bypassed) {
+ /* if bypassed the regulator must have a supply */
+ if (!rdev->supply) {
+ rdev_err(rdev,
+ "bypassed regulator has no supply!\n");
+ return -EPROBE_DEFER;
+ }
+
+ return _regulator_get_voltage(rdev->supply->rdev);
+ }
+ }
if (rdev->desc->ops->get_voltage_sel) {
sel = rdev->desc->ops->get_voltage_sel(rdev);
@@ -3365,8 +3413,7 @@ int regulator_allow_bypass(struct regulator *regulator, bool enable)
if (!rdev->desc->ops->set_bypass)
return 0;
- if (rdev->constraints &&
- !(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_BYPASS))
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_BYPASS))
return 0;
mutex_lock(&rdev->mutex);
@@ -3840,6 +3887,16 @@ static void rdev_init_debugfs(struct regulator_dev *rdev)
&rdev->bypass_count);
}
+static int regulator_register_resolve_supply(struct device *dev, void *data)
+{
+ struct regulator_dev *rdev = dev_to_rdev(dev);
+
+ if (regulator_resolve_supply(rdev))
+ rdev_dbg(rdev, "unable to resolve supply\n");
+
+ return 0;
+}
+
/**
* regulator_register - register regulator
* @regulator_desc: regulator to register
@@ -3911,8 +3968,6 @@ regulator_register(const struct regulator_desc *regulator_desc,
rdev->dev.of_node = of_node_get(config->of_node);
}
- mutex_lock(&regulator_list_mutex);
-
mutex_init(&rdev->mutex);
rdev->reg_data = config->driver_data;
rdev->owner = regulator_desc->owner;
@@ -3937,7 +3992,9 @@ regulator_register(const struct regulator_desc *regulator_desc,
if ((config->ena_gpio || config->ena_gpio_initialized) &&
gpio_is_valid(config->ena_gpio)) {
+ mutex_lock(&regulator_list_mutex);
ret = regulator_ena_gpio_request(rdev, config);
+ mutex_unlock(&regulator_list_mutex);
if (ret != 0) {
rdev_err(rdev, "Failed to request enable GPIO%d: %d\n",
config->ena_gpio, ret);
@@ -3950,63 +4007,73 @@ regulator_register(const struct regulator_desc *regulator_desc,
rdev->dev.parent = dev;
dev_set_name(&rdev->dev, "regulator.%lu",
(unsigned long) atomic_inc_return(&regulator_no));
- ret = device_register(&rdev->dev);
- if (ret != 0) {
- put_device(&rdev->dev);
- goto wash;
- }
-
- dev_set_drvdata(&rdev->dev, rdev);
/* set regulator constraints */
if (init_data)
constraints = &init_data->constraints;
- ret = set_machine_constraints(rdev, constraints);
- if (ret < 0)
- goto scrub;
-
if (init_data && init_data->supply_regulator)
rdev->supply_name = init_data->supply_regulator;
else if (regulator_desc->supply_name)
rdev->supply_name = regulator_desc->supply_name;
+ /*
+ * Attempt to resolve the regulator supply, if specified,
+ * but don't return an error if we fail because we will try
+ * to resolve it again later as more regulators are added.
+ */
+ if (regulator_resolve_supply(rdev))
+ rdev_dbg(rdev, "unable to resolve supply\n");
+
+ ret = set_machine_constraints(rdev, constraints);
+ if (ret < 0)
+ goto wash;
+
/* add consumers devices */
if (init_data) {
+ mutex_lock(&regulator_list_mutex);
for (i = 0; i < init_data->num_consumer_supplies; i++) {
ret = set_consumer_device_supply(rdev,
init_data->consumer_supplies[i].dev_name,
init_data->consumer_supplies[i].supply);
if (ret < 0) {
+ mutex_unlock(&regulator_list_mutex);
dev_err(dev, "Failed to set supply %s\n",
init_data->consumer_supplies[i].supply);
goto unset_supplies;
}
}
+ mutex_unlock(&regulator_list_mutex);
+ }
+
+ ret = device_register(&rdev->dev);
+ if (ret != 0) {
+ put_device(&rdev->dev);
+ goto unset_supplies;
}
+ dev_set_drvdata(&rdev->dev, rdev);
rdev_init_debugfs(rdev);
-out:
- mutex_unlock(&regulator_list_mutex);
+
+ /* try to resolve regulators supply since a new one was registered */
+ class_for_each_device(&regulator_class, NULL, NULL,
+ regulator_register_resolve_supply);
kfree(config);
return rdev;
unset_supplies:
+ mutex_lock(&regulator_list_mutex);
unset_regulator_supplies(rdev);
-
-scrub:
- regulator_ena_gpio_free(rdev);
- device_unregister(&rdev->dev);
- /* device core frees rdev */
- rdev = ERR_PTR(ret);
- goto out;
-
+ mutex_unlock(&regulator_list_mutex);
wash:
+ kfree(rdev->constraints);
+ mutex_lock(&regulator_list_mutex);
regulator_ena_gpio_free(rdev);
+ mutex_unlock(&regulator_list_mutex);
clean:
kfree(rdev);
- rdev = ERR_PTR(ret);
- goto out;
+ kfree(config);
+ return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(regulator_register);
@@ -4032,8 +4099,8 @@ void regulator_unregister(struct regulator_dev *rdev)
WARN_ON(rdev->open_count);
unset_regulator_supplies(rdev);
list_del(&rdev->list);
- mutex_unlock(&regulator_list_mutex);
regulator_ena_gpio_free(rdev);
+ mutex_unlock(&regulator_list_mutex);
device_unregister(&rdev->dev);
}
EXPORT_SYMBOL_GPL(regulator_unregister);
@@ -4386,7 +4453,7 @@ static int __init regulator_late_cleanup(struct device *dev, void *data)
if (c && c->always_on)
return 0;
- if (c && !(c->valid_ops_mask & REGULATOR_CHANGE_STATUS))
+ if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_STATUS))
return 0;
mutex_lock(&rdev->mutex);
diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c
index ed9e7e96f877..c6af343f54ea 100644
--- a/drivers/regulator/da9063-regulator.c
+++ b/drivers/regulator/da9063-regulator.c
@@ -900,4 +900,4 @@ module_exit(da9063_regulator_cleanup);
MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>");
MODULE_DESCRIPTION("DA9063 regulators driver");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("paltform:" DA9063_DRVNAME_REGULATORS);
+MODULE_ALIAS("platform:" DA9063_DRVNAME_REGULATORS);
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index a8718e98674a..83e89e5d4752 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -162,6 +162,8 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np,
of_property_read_u32(np, "startup-delay-us", &config->startup_delay);
config->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0);
+ if (config->enable_gpio == -EPROBE_DEFER)
+ return ERR_PTR(-EPROBE_DEFER);
/* Fetch GPIOs. - optional property*/
ret = of_gpio_count(np);
diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c
index b1e32e7482e9..bcf38fd5106a 100644
--- a/drivers/regulator/helpers.c
+++ b/drivers/regulator/helpers.c
@@ -460,7 +460,7 @@ int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable)
if (ret != 0)
return ret;
- *enable = val & rdev->desc->bypass_mask;
+ *enable = (val & rdev->desc->bypass_mask) == rdev->desc->bypass_val_on;
return 0;
}
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 6b0aa80b22fd..cd828dbf9d52 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -45,9 +45,9 @@ static void of_get_regulation_constraints(struct device_node *np,
/* Voltage change possible? */
if (constraints->min_uV != constraints->max_uV)
constraints->valid_ops_mask |= REGULATOR_CHANGE_VOLTAGE;
- /* Only one voltage? Then make sure it's set. */
- if (constraints->min_uV && constraints->max_uV &&
- constraints->min_uV == constraints->max_uV)
+
+ /* Do we have a voltage range, if so try to apply it? */
+ if (constraints->min_uV && constraints->max_uV)
constraints->apply_uV = true;
if (!of_property_read_u32(np, "regulator-microvolt-offset", &pval))
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index d24e2c783dc5..6dfa3502e1f1 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -308,7 +308,7 @@ static struct regulator_ops s2mps11_buck_ops = {
.enable_mask = S2MPS11_ENABLE_MASK \
}
-#define regulator_desc_s2mps11_buck6_10(num, min, step) { \
+#define regulator_desc_s2mps11_buck67810(num, min, step) { \
.name = "BUCK"#num, \
.id = S2MPS11_BUCK##num, \
.ops = &s2mps11_buck_ops, \
@@ -324,6 +324,22 @@ static struct regulator_ops s2mps11_buck_ops = {
.enable_mask = S2MPS11_ENABLE_MASK \
}
+#define regulator_desc_s2mps11_buck9 { \
+ .name = "BUCK9", \
+ .id = S2MPS11_BUCK9, \
+ .ops = &s2mps11_buck_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .min_uV = MIN_3000_MV, \
+ .uV_step = STEP_25_MV, \
+ .n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \
+ .ramp_delay = S2MPS11_RAMP_DELAY, \
+ .vsel_reg = S2MPS11_REG_B9CTRL2, \
+ .vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \
+ .enable_reg = S2MPS11_REG_B9CTRL1, \
+ .enable_mask = S2MPS11_ENABLE_MASK \
+}
+
static const struct regulator_desc s2mps11_regulators[] = {
regulator_desc_s2mps11_ldo(1, STEP_25_MV),
regulator_desc_s2mps11_ldo(2, STEP_50_MV),
@@ -368,11 +384,11 @@ static const struct regulator_desc s2mps11_regulators[] = {
regulator_desc_s2mps11_buck1_4(3),
regulator_desc_s2mps11_buck1_4(4),
regulator_desc_s2mps11_buck5,
- regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV),
- regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV),
- regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV),
- regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV),
- regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV),
+ regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV),
+ regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_6_25_MV),
+ regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_6_25_MV),
+ regulator_desc_s2mps11_buck9,
+ regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV),
};
static struct regulator_ops s2mps14_reg_ops;
diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index 9503d5481a52..a4921a70da55 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -1,541 +1,168 @@
/*
- * tps65912.c -- TI tps65912
+ * Regulator driver for TI TPS65912x PMICs
*
- * Copyright 2011 Texas Instruments Inc.
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ * Andrew F. Davis <afd@ti.com>
*
- * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
*
- * This driver is based on wm8350 implementation.
+ * Based on the TPS65218 driver and the previous TPS65912 driver by
+ * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
*/
-#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
-#include <linux/regulator/machine.h>
-#include <linux/slab.h>
-#include <linux/gpio.h>
-#include <linux/mfd/tps65912.h>
-
-/* DCDC's */
-#define TPS65912_REG_DCDC1 0
-#define TPS65912_REG_DCDC2 1
-#define TPS65912_REG_DCDC3 2
-#define TPS65912_REG_DCDC4 3
-
-/* LDOs */
-#define TPS65912_REG_LDO1 4
-#define TPS65912_REG_LDO2 5
-#define TPS65912_REG_LDO3 6
-#define TPS65912_REG_LDO4 7
-#define TPS65912_REG_LDO5 8
-#define TPS65912_REG_LDO6 9
-#define TPS65912_REG_LDO7 10
-#define TPS65912_REG_LDO8 11
-#define TPS65912_REG_LDO9 12
-#define TPS65912_REG_LDO10 13
-
-/* Number of step-down converters available */
-#define TPS65912_NUM_DCDC 4
-
-/* Number of LDO voltage regulators available */
-#define TPS65912_NUM_LDO 10
-/* Number of total regulators available */
-#define TPS65912_NUM_REGULATOR (TPS65912_NUM_DCDC + TPS65912_NUM_LDO)
-
-#define TPS65912_REG_ENABLED 0x80
-#define OP_SELREG_MASK 0x40
-#define OP_SELREG_SHIFT 6
-
-struct tps_info {
- const char *name;
-};
+#include <linux/mfd/tps65912.h>
-static struct tps_info tps65912_regs[] = {
- {
- .name = "DCDC1",
- },
- {
- .name = "DCDC2",
- },
- {
- .name = "DCDC3",
- },
- {
- .name = "DCDC4",
- },
- {
- .name = "LDO1",
- },
- {
- .name = "LDO2",
- },
- {
- .name = "LDO3",
- },
- {
- .name = "LDO4",
- },
- {
- .name = "LDO5",
- },
- {
- .name = "LDO6",
- },
- {
- .name = "LDO7",
- },
- {
- .name = "LDO8",
- },
- {
- .name = "LDO9",
- },
- {
- .name = "LDO10",
- },
-};
+enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,
+ LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };
+
+#define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \
+ [_id] = { \
+ .name = _name, \
+ .of_match = _of_match, \
+ .regulators_node = "regulators", \
+ .id = _id, \
+ .ops = &_ops, \
+ .n_voltages = 64, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .vsel_reg = _vr, \
+ .vsel_mask = 0x3f, \
+ .enable_reg = _er, \
+ .enable_mask = BIT(7), \
+ .volt_table = NULL, \
+ .linear_ranges = _lr, \
+ .n_linear_ranges = ARRAY_SIZE(_lr), \
+ }
-struct tps65912_reg {
- struct regulator_desc desc[TPS65912_NUM_REGULATOR];
- struct tps65912 *mfd;
- struct regulator_dev *rdev[TPS65912_NUM_REGULATOR];
- struct tps_info *info[TPS65912_NUM_REGULATOR];
- /* for read/write access */
- struct mutex io_lock;
- int mode;
- int (*get_ctrl_reg)(int);
- int dcdc_range[TPS65912_NUM_DCDC];
- int pwm_mode_reg;
- int eco_reg;
+static const struct regulator_linear_range tps65912_dcdc_ranges[] = {
+ REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),
};
static const struct regulator_linear_range tps65912_ldo_ranges[] = {
- REGULATOR_LINEAR_RANGE(800000, 0, 32, 25000),
- REGULATOR_LINEAR_RANGE(1650000, 33, 60, 50000),
- REGULATOR_LINEAR_RANGE(3100000, 61, 63, 100000),
+ REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),
+ REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),
+ REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),
};
-static int tps65912_get_range(struct tps65912_reg *pmic, int id)
-{
- struct tps65912 *mfd = pmic->mfd;
- int range;
-
- switch (id) {
- case TPS65912_REG_DCDC1:
- range = tps65912_reg_read(mfd, TPS65912_DCDC1_LIMIT);
- break;
- case TPS65912_REG_DCDC2:
- range = tps65912_reg_read(mfd, TPS65912_DCDC2_LIMIT);
- break;
- case TPS65912_REG_DCDC3:
- range = tps65912_reg_read(mfd, TPS65912_DCDC3_LIMIT);
- break;
- case TPS65912_REG_DCDC4:
- range = tps65912_reg_read(mfd, TPS65912_DCDC4_LIMIT);
- break;
- default:
- return 0;
- }
-
- if (range >= 0)
- range = (range & DCDC_LIMIT_RANGE_MASK)
- >> DCDC_LIMIT_RANGE_SHIFT;
-
- pmic->dcdc_range[id] = range;
- return range;
-}
-
-static unsigned long tps65912_vsel_to_uv_range0(u8 vsel)
-{
- unsigned long uv;
-
- uv = ((vsel * 12500) + 500000);
- return uv;
-}
-
-static unsigned long tps65912_vsel_to_uv_range1(u8 vsel)
-{
- unsigned long uv;
-
- uv = ((vsel * 12500) + 700000);
- return uv;
-}
-
-static unsigned long tps65912_vsel_to_uv_range2(u8 vsel)
-{
- unsigned long uv;
-
- uv = ((vsel * 25000) + 500000);
- return uv;
-}
-
-static unsigned long tps65912_vsel_to_uv_range3(u8 vsel)
-{
- unsigned long uv;
-
- if (vsel == 0x3f)
- uv = 3800000;
- else
- uv = ((vsel * 50000) + 500000);
-
- return uv;
-}
-
-static int tps65912_get_ctrl_register(int id)
-{
- if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4)
- return id * 3 + TPS65912_DCDC1_AVS;
- else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10)
- return id - TPS65912_REG_LDO5 + TPS65912_LDO5;
- else
- return -EINVAL;
-}
-
-static int tps65912_get_sel_register(struct tps65912_reg *pmic, int id)
-{
- struct tps65912 *mfd = pmic->mfd;
- int opvsel;
- u8 reg = 0;
-
- if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4) {
- opvsel = tps65912_reg_read(mfd, id * 3 + TPS65912_DCDC1_OP);
- if (opvsel & OP_SELREG_MASK)
- reg = id * 3 + TPS65912_DCDC1_AVS;
- else
- reg = id * 3 + TPS65912_DCDC1_OP;
- } else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10) {
- reg = id - TPS65912_REG_LDO5 + TPS65912_LDO5;
- } else {
- return -EINVAL;
- }
-
- return reg;
-}
-
-static int tps65912_get_mode_regiters(struct tps65912_reg *pmic, int id)
-{
- switch (id) {
- case TPS65912_REG_DCDC1:
- pmic->pwm_mode_reg = TPS65912_DCDC1_CTRL;
- pmic->eco_reg = TPS65912_DCDC1_AVS;
- break;
- case TPS65912_REG_DCDC2:
- pmic->pwm_mode_reg = TPS65912_DCDC2_CTRL;
- pmic->eco_reg = TPS65912_DCDC2_AVS;
- break;
- case TPS65912_REG_DCDC3:
- pmic->pwm_mode_reg = TPS65912_DCDC3_CTRL;
- pmic->eco_reg = TPS65912_DCDC3_AVS;
- break;
- case TPS65912_REG_DCDC4:
- pmic->pwm_mode_reg = TPS65912_DCDC4_CTRL;
- pmic->eco_reg = TPS65912_DCDC4_AVS;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int tps65912_reg_is_enabled(struct regulator_dev *dev)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- struct tps65912 *mfd = pmic->mfd;
- int reg, value, id = rdev_get_id(dev);
-
- if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10)
- return -EINVAL;
-
- reg = pmic->get_ctrl_reg(id);
- if (reg < 0)
- return reg;
-
- value = tps65912_reg_read(mfd, reg);
- if (value < 0)
- return value;
-
- return value & TPS65912_REG_ENABLED;
-}
-
-static int tps65912_reg_enable(struct regulator_dev *dev)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- struct tps65912 *mfd = pmic->mfd;
- int id = rdev_get_id(dev);
- int reg;
-
- if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10)
- return -EINVAL;
-
- reg = pmic->get_ctrl_reg(id);
- if (reg < 0)
- return reg;
-
- return tps65912_set_bits(mfd, reg, TPS65912_REG_ENABLED);
-}
-
-static int tps65912_reg_disable(struct regulator_dev *dev)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- struct tps65912 *mfd = pmic->mfd;
- int id = rdev_get_id(dev), reg;
-
- reg = pmic->get_ctrl_reg(id);
- if (reg < 0)
- return reg;
-
- return tps65912_clear_bits(mfd, reg, TPS65912_REG_ENABLED);
-}
-
-static int tps65912_set_mode(struct regulator_dev *dev, unsigned int mode)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- struct tps65912 *mfd = pmic->mfd;
- int pwm_mode, eco, id = rdev_get_id(dev);
-
- tps65912_get_mode_regiters(pmic, id);
-
- pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg);
- eco = tps65912_reg_read(mfd, pmic->eco_reg);
-
- pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
- eco &= DCDC_AVS_ECO_MASK;
-
- switch (mode) {
- case REGULATOR_MODE_FAST:
- /* Verify if mode alredy set */
- if (pwm_mode && !eco)
- break;
- tps65912_set_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
- tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
- break;
- case REGULATOR_MODE_NORMAL:
- case REGULATOR_MODE_IDLE:
- if (!pwm_mode && !eco)
- break;
- tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
- tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
- break;
- case REGULATOR_MODE_STANDBY:
- if (!pwm_mode && eco)
- break;
- tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
- tps65912_set_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static unsigned int tps65912_get_mode(struct regulator_dev *dev)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- struct tps65912 *mfd = pmic->mfd;
- int pwm_mode, eco, mode = 0, id = rdev_get_id(dev);
-
- tps65912_get_mode_regiters(pmic, id);
-
- pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg);
- eco = tps65912_reg_read(mfd, pmic->eco_reg);
-
- pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
- eco &= DCDC_AVS_ECO_MASK;
-
- if (pwm_mode && !eco)
- mode = REGULATOR_MODE_FAST;
- else if (!pwm_mode && !eco)
- mode = REGULATOR_MODE_NORMAL;
- else if (!pwm_mode && eco)
- mode = REGULATOR_MODE_STANDBY;
-
- return mode;
-}
-
-static int tps65912_list_voltage(struct regulator_dev *dev, unsigned selector)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- int range, voltage = 0, id = rdev_get_id(dev);
-
- if (id > TPS65912_REG_DCDC4)
- return -EINVAL;
-
- range = pmic->dcdc_range[id];
-
- switch (range) {
- case 0:
- /* 0.5 - 1.2875V in 12.5mV steps */
- voltage = tps65912_vsel_to_uv_range0(selector);
- break;
- case 1:
- /* 0.7 - 1.4875V in 12.5mV steps */
- voltage = tps65912_vsel_to_uv_range1(selector);
- break;
- case 2:
- /* 0.5 - 2.075V in 25mV steps */
- voltage = tps65912_vsel_to_uv_range2(selector);
- break;
- case 3:
- /* 0.5 - 3.8V in 50mV steps */
- voltage = tps65912_vsel_to_uv_range3(selector);
- break;
- }
- return voltage;
-}
-
-static int tps65912_get_voltage_sel(struct regulator_dev *dev)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- struct tps65912 *mfd = pmic->mfd;
- int id = rdev_get_id(dev);
- int reg, vsel;
-
- reg = tps65912_get_sel_register(pmic, id);
- if (reg < 0)
- return reg;
-
- vsel = tps65912_reg_read(mfd, reg);
- vsel &= 0x3F;
-
- return vsel;
-}
-
-static int tps65912_set_voltage_sel(struct regulator_dev *dev,
- unsigned selector)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- struct tps65912 *mfd = pmic->mfd;
- int id = rdev_get_id(dev);
- int value;
- u8 reg;
-
- reg = tps65912_get_sel_register(pmic, id);
- value = tps65912_reg_read(mfd, reg);
- value &= 0xC0;
- return tps65912_reg_write(mfd, reg, selector | value);
-}
-
/* Operations permitted on DCDCx */
static struct regulator_ops tps65912_ops_dcdc = {
- .is_enabled = tps65912_reg_is_enabled,
- .enable = tps65912_reg_enable,
- .disable = tps65912_reg_disable,
- .set_mode = tps65912_set_mode,
- .get_mode = tps65912_get_mode,
- .get_voltage_sel = tps65912_get_voltage_sel,
- .set_voltage_sel = tps65912_set_voltage_sel,
- .list_voltage = tps65912_list_voltage,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
};
/* Operations permitted on LDOx */
static struct regulator_ops tps65912_ops_ldo = {
- .is_enabled = tps65912_reg_is_enabled,
- .enable = tps65912_reg_enable,
- .disable = tps65912_reg_disable,
- .get_voltage_sel = tps65912_get_voltage_sel,
- .set_voltage_sel = tps65912_set_voltage_sel,
- .list_voltage = regulator_list_voltage_linear_range,
- .map_voltage = regulator_map_voltage_linear_range,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+};
+
+static const struct regulator_desc regulators[] = {
+ TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,
+ TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,
+ tps65912_dcdc_ranges),
+ TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,
+ TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,
+ tps65912_dcdc_ranges),
+ TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,
+ TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,
+ tps65912_dcdc_ranges),
+ TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,
+ TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,
+ tps65912_dcdc_ranges),
+ TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,
+ TPS65912_LDO1_OP, TPS65912_LDO1_AVS,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,
+ TPS65912_LDO2_OP, TPS65912_LDO2_AVS,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,
+ TPS65912_LDO3_OP, TPS65912_LDO3_AVS,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,
+ TPS65912_LDO4_OP, TPS65912_LDO4_AVS,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,
+ TPS65912_LDO5, TPS65912_LDO5,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,
+ TPS65912_LDO6, TPS65912_LDO6,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,
+ TPS65912_LDO7, TPS65912_LDO7,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,
+ TPS65912_LDO8, TPS65912_LDO8,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,
+ TPS65912_LDO9, TPS65912_LDO9,
+ tps65912_ldo_ranges),
+ TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,
+ TPS65912_LDO10, TPS65912_LDO10,
+ tps65912_ldo_ranges),
};
-static int tps65912_probe(struct platform_device *pdev)
+static int tps65912_regulator_probe(struct platform_device *pdev)
{
- struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent);
+ struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = { };
- struct tps_info *info;
- struct regulator_init_data *reg_data;
struct regulator_dev *rdev;
- struct tps65912_reg *pmic;
- struct tps65912_board *pmic_plat_data;
int i;
- pmic_plat_data = dev_get_platdata(tps65912->dev);
- if (!pmic_plat_data)
- return -EINVAL;
+ platform_set_drvdata(pdev, tps);
- reg_data = pmic_plat_data->tps65912_pmic_init_data;
+ config.dev = &pdev->dev;
+ config.driver_data = tps;
+ config.dev->of_node = tps->dev->of_node;
+ config.regmap = tps->regmap;
- pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
- if (!pmic)
- return -ENOMEM;
-
- mutex_init(&pmic->io_lock);
- pmic->mfd = tps65912;
- platform_set_drvdata(pdev, pmic);
-
- pmic->get_ctrl_reg = &tps65912_get_ctrl_register;
- info = tps65912_regs;
-
- for (i = 0; i < TPS65912_NUM_REGULATOR; i++, info++, reg_data++) {
- int range = 0;
- /* Register the regulators */
- pmic->info[i] = info;
-
- pmic->desc[i].name = info->name;
- pmic->desc[i].id = i;
- pmic->desc[i].n_voltages = 64;
- if (i > TPS65912_REG_DCDC4) {
- pmic->desc[i].ops = &tps65912_ops_ldo;
- pmic->desc[i].linear_ranges = tps65912_ldo_ranges;
- pmic->desc[i].n_linear_ranges =
- ARRAY_SIZE(tps65912_ldo_ranges);
- } else {
- pmic->desc[i].ops = &tps65912_ops_dcdc;
- }
- pmic->desc[i].type = REGULATOR_VOLTAGE;
- pmic->desc[i].owner = THIS_MODULE;
- range = tps65912_get_range(pmic, i);
-
- config.dev = tps65912->dev;
- config.init_data = reg_data;
- config.driver_data = pmic;
-
- rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
+ for (i = 0; i < ARRAY_SIZE(regulators); i++) {
+ rdev = devm_regulator_register(&pdev->dev, &regulators[i],
&config);
if (IS_ERR(rdev)) {
- dev_err(tps65912->dev,
- "failed to register %s regulator\n",
+ dev_err(tps->dev, "failed to register %s regulator\n",
pdev->name);
return PTR_ERR(rdev);
}
-
- /* Save regulator for cleanup */
- pmic->rdev[i] = rdev;
}
+
return 0;
}
-static struct platform_driver tps65912_driver = {
+static const struct platform_device_id tps65912_regulator_id_table[] = {
+ { "tps65912-regulator", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);
+
+static struct platform_driver tps65912_regulator_driver = {
.driver = {
- .name = "tps65912-pmic",
+ .name = "tps65912-regulator",
},
- .probe = tps65912_probe,
+ .probe = tps65912_regulator_probe,
+ .id_table = tps65912_regulator_id_table,
};
+module_platform_driver(tps65912_regulator_driver);
-static int __init tps65912_init(void)
-{
- return platform_driver_register(&tps65912_driver);
-}
-subsys_initcall(tps65912_init);
-
-static void __exit tps65912_cleanup(void)
-{
- platform_driver_unregister(&tps65912_driver);
-}
-module_exit(tps65912_cleanup);
-
-MODULE_AUTHOR("Margarita Olaya Cabrera <magi@slimlogic.co.uk>");
+MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:tps65912-pmic");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 09:44:33 +0000