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path: root/drivers/regulator/tps6507x-regulator.c
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Diffstat (limited to 'drivers/regulator/tps6507x-regulator.c')
-rw-r--r--drivers/regulator/tps6507x-regulator.c748
1 files changed, 288 insertions, 460 deletions
diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
index f8a6dfbef75..98e66ce2672 100644
--- a/drivers/regulator/tps6507x-regulator.c
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -22,67 +22,11 @@
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
-#include <linux/i2c.h>
-#include <linux/delay.h>
-
-/* Register definitions */
-#define TPS6507X_REG_PPATH1 0X01
-#define TPS6507X_REG_INT 0X02
-#define TPS6507X_REG_CHGCONFIG0 0X03
-#define TPS6507X_REG_CHGCONFIG1 0X04
-#define TPS6507X_REG_CHGCONFIG2 0X05
-#define TPS6507X_REG_CHGCONFIG3 0X06
-#define TPS6507X_REG_REG_ADCONFIG 0X07
-#define TPS6507X_REG_TSCMODE 0X08
-#define TPS6507X_REG_ADRESULT_1 0X09
-#define TPS6507X_REG_ADRESULT_2 0X0A
-#define TPS6507X_REG_PGOOD 0X0B
-#define TPS6507X_REG_PGOODMASK 0X0C
-#define TPS6507X_REG_CON_CTRL1 0X0D
-#define TPS6507X_REG_CON_CTRL2 0X0E
-#define TPS6507X_REG_CON_CTRL3 0X0F
-#define TPS6507X_REG_DEFDCDC1 0X10
-#define TPS6507X_REG_DEFDCDC2_LOW 0X11
-#define TPS6507X_REG_DEFDCDC2_HIGH 0X12
-#define TPS6507X_REG_DEFDCDC3_LOW 0X13
-#define TPS6507X_REG_DEFDCDC3_HIGH 0X14
-#define TPS6507X_REG_DEFSLEW 0X15
-#define TPS6507X_REG_LDO_CTRL1 0X16
-#define TPS6507X_REG_DEFLDO2 0X17
-#define TPS6507X_REG_WLED_CTRL1 0X18
-#define TPS6507X_REG_WLED_CTRL2 0X19
-
-/* CON_CTRL1 bitfields */
-#define TPS6507X_CON_CTRL1_DCDC1_ENABLE BIT(4)
-#define TPS6507X_CON_CTRL1_DCDC2_ENABLE BIT(3)
-#define TPS6507X_CON_CTRL1_DCDC3_ENABLE BIT(2)
-#define TPS6507X_CON_CTRL1_LDO1_ENABLE BIT(1)
-#define TPS6507X_CON_CTRL1_LDO2_ENABLE BIT(0)
-
-/* DEFDCDC1 bitfields */
-#define TPS6507X_DEFDCDC1_DCDC1_EXT_ADJ_EN BIT(7)
-#define TPS6507X_DEFDCDC1_DCDC1_MASK 0X3F
-
-/* DEFDCDC2_LOW bitfields */
-#define TPS6507X_DEFDCDC2_LOW_DCDC2_MASK 0X3F
-
-/* DEFDCDC2_HIGH bitfields */
-#define TPS6507X_DEFDCDC2_HIGH_DCDC2_MASK 0X3F
-
-/* DEFDCDC3_LOW bitfields */
-#define TPS6507X_DEFDCDC3_LOW_DCDC3_MASK 0X3F
-
-/* DEFDCDC3_HIGH bitfields */
-#define TPS6507X_DEFDCDC3_HIGH_DCDC3_MASK 0X3F
-
-/* TPS6507X_REG_LDO_CTRL1 bitfields */
-#define TPS6507X_REG_LDO_CTRL1_LDO1_MASK 0X0F
-
-/* TPS6507X_REG_DEFLDO2 bitfields */
-#define TPS6507X_REG_DEFLDO2_LDO2_MASK 0X3F
-
-/* VDCDC MASK */
-#define TPS6507X_DEFDCDCX_DCDC_MASK 0X3F
+#include <linux/regulator/tps6507x.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/mfd/tps6507x.h>
+#include <linux/regulator/of_regulator.h>
/* DCDC's */
#define TPS6507X_DCDC_1 0
@@ -101,187 +45,183 @@
/* Number of total regulators available */
#define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
-/* Supported voltage values for regulators (in milliVolts) */
-static const u16 VDCDCx_VSEL_table[] = {
- 725, 750, 775, 800,
- 825, 850, 875, 900,
- 925, 950, 975, 1000,
- 1025, 1050, 1075, 1100,
- 1125, 1150, 1175, 1200,
- 1225, 1250, 1275, 1300,
- 1325, 1350, 1375, 1400,
- 1425, 1450, 1475, 1500,
- 1550, 1600, 1650, 1700,
- 1750, 1800, 1850, 1900,
- 1950, 2000, 2050, 2100,
- 2150, 2200, 2250, 2300,
- 2350, 2400, 2450, 2500,
- 2550, 2600, 2650, 2700,
- 2750, 2800, 2850, 2900,
- 3000, 3100, 3200, 3300,
+/* Supported voltage values for regulators (in microVolts) */
+static const unsigned int VDCDCx_VSEL_table[] = {
+ 725000, 750000, 775000, 800000,
+ 825000, 850000, 875000, 900000,
+ 925000, 950000, 975000, 1000000,
+ 1025000, 1050000, 1075000, 1100000,
+ 1125000, 1150000, 1175000, 1200000,
+ 1225000, 1250000, 1275000, 1300000,
+ 1325000, 1350000, 1375000, 1400000,
+ 1425000, 1450000, 1475000, 1500000,
+ 1550000, 1600000, 1650000, 1700000,
+ 1750000, 1800000, 1850000, 1900000,
+ 1950000, 2000000, 2050000, 2100000,
+ 2150000, 2200000, 2250000, 2300000,
+ 2350000, 2400000, 2450000, 2500000,
+ 2550000, 2600000, 2650000, 2700000,
+ 2750000, 2800000, 2850000, 2900000,
+ 3000000, 3100000, 3200000, 3300000,
};
-static const u16 LDO1_VSEL_table[] = {
- 1000, 1100, 1200, 1250,
- 1300, 1350, 1400, 1500,
- 1600, 1800, 2500, 2750,
- 2800, 3000, 3100, 3300,
+static const unsigned int LDO1_VSEL_table[] = {
+ 1000000, 1100000, 1200000, 1250000,
+ 1300000, 1350000, 1400000, 1500000,
+ 1600000, 1800000, 2500000, 2750000,
+ 2800000, 3000000, 3100000, 3300000,
};
-static const u16 LDO2_VSEL_table[] = {
- 725, 750, 775, 800,
- 825, 850, 875, 900,
- 925, 950, 975, 1000,
- 1025, 1050, 1075, 1100,
- 1125, 1150, 1175, 1200,
- 1225, 1250, 1275, 1300,
- 1325, 1350, 1375, 1400,
- 1425, 1450, 1475, 1500,
- 1550, 1600, 1650, 1700,
- 1750, 1800, 1850, 1900,
- 1950, 2000, 2050, 2100,
- 2150, 2200, 2250, 2300,
- 2350, 2400, 2450, 2500,
- 2550, 2600, 2650, 2700,
- 2750, 2800, 2850, 2900,
- 3000, 3100, 3200, 3300,
-};
-
-static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDCx_VSEL_table),
- ARRAY_SIZE(VDCDCx_VSEL_table),
- ARRAY_SIZE(VDCDCx_VSEL_table),
- ARRAY_SIZE(LDO1_VSEL_table),
- ARRAY_SIZE(LDO2_VSEL_table)};
+/* The voltage mapping table for LDO2 is the same as VDCDCx */
+#define LDO2_VSEL_table VDCDCx_VSEL_table
struct tps_info {
const char *name;
- unsigned min_uV;
- unsigned max_uV;
u8 table_len;
- const u16 *table;
+ const unsigned int *table;
+
+ /* Does DCDC high or the low register defines output voltage? */
+ bool defdcdc_default;
+};
+
+static struct tps_info tps6507x_pmic_regs[] = {
+ {
+ .name = "VDCDC1",
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "VDCDC2",
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "VDCDC3",
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "LDO1",
+ .table_len = ARRAY_SIZE(LDO1_VSEL_table),
+ .table = LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .table_len = ARRAY_SIZE(LDO2_VSEL_table),
+ .table = LDO2_VSEL_table,
+ },
};
-struct tps_pmic {
+struct tps6507x_pmic {
struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
- struct i2c_client *client;
+ struct tps6507x_dev *mfd;
struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR];
- const struct tps_info *info[TPS6507X_NUM_REGULATOR];
+ struct tps_info *info[TPS6507X_NUM_REGULATOR];
struct mutex io_lock;
};
-
-static inline int tps_6507x_read(struct tps_pmic *tps, u8 reg)
+static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg)
{
- return i2c_smbus_read_byte_data(tps->client, reg);
+ u8 val;
+ int err;
+
+ err = tps->mfd->read_dev(tps->mfd, reg, 1, &val);
+
+ if (err)
+ return err;
+
+ return val;
}
-static inline int tps_6507x_write(struct tps_pmic *tps, u8 reg, u8 val)
+static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
{
- return i2c_smbus_write_byte_data(tps->client, reg, val);
+ return tps->mfd->write_dev(tps->mfd, reg, 1, &val);
}
-static int tps_6507x_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
+static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
{
int err, data;
mutex_lock(&tps->io_lock);
- data = tps_6507x_read(tps, reg);
+ data = tps6507x_pmic_read(tps, reg);
if (data < 0) {
- dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
err = data;
goto out;
}
data |= mask;
- err = tps_6507x_write(tps, reg, data);
+ err = tps6507x_pmic_write(tps, reg, data);
if (err)
- dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
out:
mutex_unlock(&tps->io_lock);
return err;
}
-static int tps_6507x_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask)
+static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
{
int err, data;
mutex_lock(&tps->io_lock);
- data = tps_6507x_read(tps, reg);
+ data = tps6507x_pmic_read(tps, reg);
if (data < 0) {
- dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
err = data;
goto out;
}
data &= ~mask;
- err = tps_6507x_write(tps, reg, data);
+ err = tps6507x_pmic_write(tps, reg, data);
if (err)
- dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
out:
mutex_unlock(&tps->io_lock);
return err;
}
-static int tps_6507x_reg_read(struct tps_pmic *tps, u8 reg)
+static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg)
{
int data;
mutex_lock(&tps->io_lock);
- data = tps_6507x_read(tps, reg);
+ data = tps6507x_pmic_read(tps, reg);
if (data < 0)
- dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
mutex_unlock(&tps->io_lock);
return data;
}
-static int tps_6507x_reg_write(struct tps_pmic *tps, u8 reg, u8 val)
+static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
{
int err;
mutex_lock(&tps->io_lock);
- err = tps_6507x_write(tps, reg, val);
+ err = tps6507x_pmic_write(tps, reg, val);
if (err < 0)
- dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
mutex_unlock(&tps->io_lock);
return err;
}
-static int tps6507x_dcdc_is_enabled(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, dcdc = rdev_get_id(dev);
- u8 shift;
-
- if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
- return -EINVAL;
-
- shift = TPS6507X_MAX_REG_ID - dcdc;
- data = tps_6507x_reg_read(tps, TPS6507X_REG_CON_CTRL1);
-
- if (data < 0)
- return data;
- else
- return (data & 1<<shift) ? 1 : 0;
-}
-
-static int tps6507x_ldo_is_enabled(struct regulator_dev *dev)
+static int tps6507x_pmic_is_enabled(struct regulator_dev *dev)
{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, ldo = rdev_get_id(dev);
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
u8 shift;
- if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
return -EINVAL;
- shift = TPS6507X_MAX_REG_ID - ldo;
- data = tps_6507x_reg_read(tps, TPS6507X_REG_CON_CTRL1);
+ shift = TPS6507X_MAX_REG_ID - rid;
+ data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
if (data < 0)
return data;
@@ -289,314 +229,280 @@ static int tps6507x_ldo_is_enabled(struct regulator_dev *dev)
return (data & 1<<shift) ? 1 : 0;
}
-static int tps6507x_dcdc_enable(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int dcdc = rdev_get_id(dev);
- u8 shift;
-
- if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
- return -EINVAL;
-
- shift = TPS6507X_MAX_REG_ID - dcdc;
- return tps_6507x_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
-}
-
-static int tps6507x_dcdc_disable(struct regulator_dev *dev)
+static int tps6507x_pmic_enable(struct regulator_dev *dev)
{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int dcdc = rdev_get_id(dev);
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int rid = rdev_get_id(dev);
u8 shift;
- if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
return -EINVAL;
- shift = TPS6507X_MAX_REG_ID - dcdc;
- return tps_6507x_clear_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
+ shift = TPS6507X_MAX_REG_ID - rid;
+ return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
}
-static int tps6507x_ldo_enable(struct regulator_dev *dev)
+static int tps6507x_pmic_disable(struct regulator_dev *dev)
{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int ldo = rdev_get_id(dev);
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int rid = rdev_get_id(dev);
u8 shift;
- if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
return -EINVAL;
- shift = TPS6507X_MAX_REG_ID - ldo;
- return tps_6507x_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
+ shift = TPS6507X_MAX_REG_ID - rid;
+ return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
+ 1 << shift);
}
-static int tps6507x_ldo_disable(struct regulator_dev *dev)
+static int tps6507x_pmic_get_voltage_sel(struct regulator_dev *dev)
{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int ldo = rdev_get_id(dev);
- u8 shift;
-
- if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
- return -EINVAL;
-
- shift = TPS6507X_MAX_REG_ID - ldo;
- return tps_6507x_clear_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
-}
-
-static int tps6507x_dcdc_get_voltage(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, dcdc = rdev_get_id(dev);
- u8 reg;
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
+ u8 reg, mask;
- switch (dcdc) {
+ switch (rid) {
case TPS6507X_DCDC_1:
reg = TPS6507X_REG_DEFDCDC1;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_DCDC_2:
- reg = TPS6507X_REG_DEFDCDC2_LOW;
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC2_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC2_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_DCDC_3:
- reg = TPS6507X_REG_DEFDCDC3_LOW;
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC3_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC3_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_LDO_1:
+ reg = TPS6507X_REG_LDO_CTRL1;
+ mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
+ break;
+ case TPS6507X_LDO_2:
+ reg = TPS6507X_REG_DEFLDO2;
+ mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
break;
default:
return -EINVAL;
}
- data = tps_6507x_reg_read(tps, reg);
+ data = tps6507x_pmic_reg_read(tps, reg);
if (data < 0)
return data;
- data &= TPS6507X_DEFDCDCX_DCDC_MASK;
- return tps->info[dcdc]->table[data] * 1000;
+ data &= mask;
+ return data;
}
-static int tps6507x_dcdc_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV)
+static int tps6507x_pmic_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, vsel, dcdc = rdev_get_id(dev);
- u8 reg;
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
+ u8 reg, mask;
- switch (dcdc) {
+ switch (rid) {
case TPS6507X_DCDC_1:
reg = TPS6507X_REG_DEFDCDC1;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_DCDC_2:
- reg = TPS6507X_REG_DEFDCDC2_LOW;
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC2_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC2_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_DCDC_3:
- reg = TPS6507X_REG_DEFDCDC3_LOW;
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC3_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC3_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_LDO_1:
+ reg = TPS6507X_REG_LDO_CTRL1;
+ mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
+ break;
+ case TPS6507X_LDO_2:
+ reg = TPS6507X_REG_DEFLDO2;
+ mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
break;
default:
return -EINVAL;
}
- if (min_uV < tps->info[dcdc]->min_uV
- || min_uV > tps->info[dcdc]->max_uV)
- return -EINVAL;
- if (max_uV < tps->info[dcdc]->min_uV
- || max_uV > tps->info[dcdc]->max_uV)
- return -EINVAL;
-
- for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) {
- int mV = tps->info[dcdc]->table[vsel];
- int uV = mV * 1000;
-
- /* Break at the first in-range value */
- if (min_uV <= uV && uV <= max_uV)
- break;
- }
-
- /* write to the register in case we found a match */
- if (vsel == tps->info[dcdc]->table_len)
- return -EINVAL;
-
- data = tps_6507x_reg_read(tps, reg);
+ data = tps6507x_pmic_reg_read(tps, reg);
if (data < 0)
return data;
- data &= ~TPS6507X_DEFDCDCX_DCDC_MASK;
- data |= vsel;
+ data &= ~mask;
+ data |= selector;
- return tps_6507x_reg_write(tps, reg, data);
+ return tps6507x_pmic_reg_write(tps, reg, data);
}
-static int tps6507x_ldo_get_voltage(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, ldo = rdev_get_id(dev);
- u8 reg, mask;
-
- if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
- return -EINVAL;
- else {
- reg = (ldo == TPS6507X_LDO_1 ?
- TPS6507X_REG_LDO_CTRL1 : TPS6507X_REG_DEFLDO2);
- mask = (ldo == TPS6507X_LDO_1 ?
- TPS6507X_REG_LDO_CTRL1_LDO1_MASK :
- TPS6507X_REG_DEFLDO2_LDO2_MASK);
- }
-
- data = tps_6507x_reg_read(tps, reg);
- if (data < 0)
- return data;
+static struct regulator_ops tps6507x_pmic_ops = {
+ .is_enabled = tps6507x_pmic_is_enabled,
+ .enable = tps6507x_pmic_enable,
+ .disable = tps6507x_pmic_disable,
+ .get_voltage_sel = tps6507x_pmic_get_voltage_sel,
+ .set_voltage_sel = tps6507x_pmic_set_voltage_sel,
+ .list_voltage = regulator_list_voltage_table,
+ .map_voltage = regulator_map_voltage_ascend,
+};
- data &= mask;
- return tps->info[ldo]->table[data] * 1000;
-}
+static struct of_regulator_match tps6507x_matches[] = {
+ { .name = "VDCDC1"},
+ { .name = "VDCDC2"},
+ { .name = "VDCDC3"},
+ { .name = "LDO1"},
+ { .name = "LDO2"},
+};
-static int tps6507x_ldo_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV)
+static struct tps6507x_board *tps6507x_parse_dt_reg_data(
+ struct platform_device *pdev,
+ struct of_regulator_match **tps6507x_reg_matches)
{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, vsel, ldo = rdev_get_id(dev);
- u8 reg, mask;
-
- if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
- return -EINVAL;
- else {
- reg = (ldo == TPS6507X_LDO_1 ?
- TPS6507X_REG_LDO_CTRL1 : TPS6507X_REG_DEFLDO2);
- mask = (ldo == TPS6507X_LDO_1 ?
- TPS6507X_REG_LDO_CTRL1_LDO1_MASK :
- TPS6507X_REG_DEFLDO2_LDO2_MASK);
+ struct tps6507x_board *tps_board;
+ struct device_node *np = pdev->dev.parent->of_node;
+ struct device_node *regulators;
+ struct of_regulator_match *matches;
+ static struct regulator_init_data *reg_data;
+ int idx = 0, count, ret;
+
+ tps_board = devm_kzalloc(&pdev->dev, sizeof(*tps_board),
+ GFP_KERNEL);
+ if (!tps_board)
+ return NULL;
+
+ regulators = of_get_child_by_name(np, "regulators");
+ if (!regulators) {
+ dev_err(&pdev->dev, "regulator node not found\n");
+ return NULL;
}
- if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV)
- return -EINVAL;
- if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV)
- return -EINVAL;
-
- for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) {
- int mV = tps->info[ldo]->table[vsel];
- int uV = mV * 1000;
+ count = ARRAY_SIZE(tps6507x_matches);
+ matches = tps6507x_matches;
- /* Break at the first in-range value */
- if (min_uV <= uV && uV <= max_uV)
- break;
+ ret = of_regulator_match(&pdev->dev, regulators, matches, count);
+ of_node_put(regulators);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
+ ret);
+ return NULL;
}
- if (vsel == tps->info[ldo]->table_len)
- return -EINVAL;
-
- data = tps_6507x_reg_read(tps, reg);
- if (data < 0)
- return data;
-
- data &= ~mask;
- data |= vsel;
+ *tps6507x_reg_matches = matches;
- return tps_6507x_reg_write(tps, reg, data);
-}
+ reg_data = devm_kzalloc(&pdev->dev, (sizeof(struct regulator_init_data)
+ * TPS6507X_NUM_REGULATOR), GFP_KERNEL);
+ if (!reg_data)
+ return NULL;
-static int tps6507x_dcdc_list_voltage(struct regulator_dev *dev,
- unsigned selector)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int dcdc = rdev_get_id(dev);
+ tps_board->tps6507x_pmic_init_data = reg_data;
- if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
- return -EINVAL;
-
- if (selector >= tps->info[dcdc]->table_len)
- return -EINVAL;
- else
- return tps->info[dcdc]->table[selector] * 1000;
-}
+ for (idx = 0; idx < count; idx++) {
+ if (!matches[idx].init_data || !matches[idx].of_node)
+ continue;
-static int tps6507x_ldo_list_voltage(struct regulator_dev *dev,
- unsigned selector)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int ldo = rdev_get_id(dev);
+ memcpy(&reg_data[idx], matches[idx].init_data,
+ sizeof(struct regulator_init_data));
- if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
- return -EINVAL;
+ }
- if (selector >= tps->info[ldo]->table_len)
- return -EINVAL;
- else
- return tps->info[ldo]->table[selector] * 1000;
+ return tps_board;
}
-/* Operations permitted on VDCDCx */
-static struct regulator_ops tps6507x_dcdc_ops = {
- .is_enabled = tps6507x_dcdc_is_enabled,
- .enable = tps6507x_dcdc_enable,
- .disable = tps6507x_dcdc_disable,
- .get_voltage = tps6507x_dcdc_get_voltage,
- .set_voltage = tps6507x_dcdc_set_voltage,
- .list_voltage = tps6507x_dcdc_list_voltage,
-};
-
-/* Operations permitted on LDOx */
-static struct regulator_ops tps6507x_ldo_ops = {
- .is_enabled = tps6507x_ldo_is_enabled,
- .enable = tps6507x_ldo_enable,
- .disable = tps6507x_ldo_disable,
- .get_voltage = tps6507x_ldo_get_voltage,
- .set_voltage = tps6507x_ldo_set_voltage,
- .list_voltage = tps6507x_ldo_list_voltage,
-};
-
-static
-int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id)
+static int tps6507x_pmic_probe(struct platform_device *pdev)
{
- static int desc_id;
- const struct tps_info *info = (void *)id->driver_data;
+ struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
+ struct tps_info *info = &tps6507x_pmic_regs[0];
+ struct regulator_config config = { };
struct regulator_init_data *init_data;
struct regulator_dev *rdev;
- struct tps_pmic *tps;
+ struct tps6507x_pmic *tps;
+ struct tps6507x_board *tps_board;
+ struct of_regulator_match *tps6507x_reg_matches = NULL;
int i;
+ int error;
+ unsigned int prop;
+
+ /**
+ * tps_board points to pmic related constants
+ * coming from the board-evm file.
+ */
- if (!i2c_check_functionality(client->adapter,
- I2C_FUNC_SMBUS_BYTE_DATA))
- return -EIO;
+ tps_board = dev_get_platdata(tps6507x_dev->dev);
+ if (IS_ENABLED(CONFIG_OF) && !tps_board &&
+ tps6507x_dev->dev->of_node)
+ tps_board = tps6507x_parse_dt_reg_data(pdev,
+ &tps6507x_reg_matches);
+ if (!tps_board)
+ return -EINVAL;
/**
* init_data points to array of regulator_init structures
* coming from the board-evm file.
*/
- init_data = client->dev.platform_data;
-
+ init_data = tps_board->tps6507x_pmic_init_data;
if (!init_data)
- return -EIO;
+ return -EINVAL;
- tps = kzalloc(sizeof(*tps), GFP_KERNEL);
+ tps = devm_kzalloc(&pdev->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
mutex_init(&tps->io_lock);
/* common for all regulators */
- tps->client = client;
+ tps->mfd = tps6507x_dev;
for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) {
/* Register the regulators */
tps->info[i] = info;
+ if (init_data->driver_data) {
+ struct tps6507x_reg_platform_data *data =
+ init_data->driver_data;
+ tps->info[i]->defdcdc_default = data->defdcdc_default;
+ }
+
tps->desc[i].name = info->name;
- tps->desc[i].id = desc_id++;
- tps->desc[i].n_voltages = num_voltages[i];
- tps->desc[i].ops = (i > TPS6507X_DCDC_3 ?
- &tps6507x_ldo_ops : &tps6507x_dcdc_ops);
+ tps->desc[i].id = i;
+ tps->desc[i].n_voltages = info->table_len;
+ tps->desc[i].volt_table = info->table;
+ tps->desc[i].ops = &tps6507x_pmic_ops;
tps->desc[i].type = REGULATOR_VOLTAGE;
tps->desc[i].owner = THIS_MODULE;
- rdev = regulator_register(&tps->desc[i],
- &client->dev, init_data, tps);
- if (IS_ERR(rdev)) {
- dev_err(&client->dev, "failed to register %s\n",
- id->name);
+ config.dev = tps6507x_dev->dev;
+ config.init_data = init_data;
+ config.driver_data = tps;
- /* Unregister */
- while (i)
- regulator_unregister(tps->rdev[--i]);
+ if (tps6507x_reg_matches) {
+ error = of_property_read_u32(
+ tps6507x_reg_matches[i].of_node,
+ "ti,defdcdc_default", &prop);
- tps->client = NULL;
+ if (!error)
+ tps->info[i]->defdcdc_default = prop;
- /* clear the client data in i2c */
- i2c_set_clientdata(client, NULL);
+ config.of_node = tps6507x_reg_matches[i].of_node;
+ }
- kfree(tps);
+ rdev = devm_regulator_register(&pdev->dev, &tps->desc[i],
+ &config);
+ if (IS_ERR(rdev)) {
+ dev_err(tps6507x_dev->dev,
+ "failed to register %s regulator\n",
+ pdev->name);
return PTR_ERR(rdev);
}
@@ -604,111 +510,33 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id)
tps->rdev[i] = rdev;
}
- i2c_set_clientdata(client, tps);
+ tps6507x_dev->pmic = tps;
+ platform_set_drvdata(pdev, tps6507x_dev);
return 0;
}
-/**
- * tps_6507x_remove - TPS6507x driver i2c remove handler
- * @client: i2c driver client device structure
- *
- * Unregister TPS driver as an i2c client device driver
- */
-static int __devexit tps_6507x_remove(struct i2c_client *client)
-{
- struct tps_pmic *tps = i2c_get_clientdata(client);
- int i;
-
- for (i = 0; i < TPS6507X_NUM_REGULATOR; i++)
- regulator_unregister(tps->rdev[i]);
-
- tps->client = NULL;
-
- /* clear the client data in i2c */
- i2c_set_clientdata(client, NULL);
- kfree(tps);
-
- return 0;
-}
-
-static const struct tps_info tps6507x_regs[] = {
- {
- .name = "VDCDC1",
- .min_uV = 725000,
- .max_uV = 3300000,
- .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
- .table = VDCDCx_VSEL_table,
- },
- {
- .name = "VDCDC2",
- .min_uV = 725000,
- .max_uV = 3300000,
- .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
- .table = VDCDCx_VSEL_table,
- },
- {
- .name = "VDCDC3",
- .min_uV = 725000,
- .max_uV = 3300000,
- .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
- .table = VDCDCx_VSEL_table,
- },
- {
- .name = "LDO1",
- .min_uV = 1000000,
- .max_uV = 3300000,
- .table_len = ARRAY_SIZE(LDO1_VSEL_table),
- .table = LDO1_VSEL_table,
- },
- {
- .name = "LDO2",
- .min_uV = 725000,
- .max_uV = 3300000,
- .table_len = ARRAY_SIZE(LDO2_VSEL_table),
- .table = LDO2_VSEL_table,
- },
-};
-
-static const struct i2c_device_id tps_6507x_id[] = {
- {.name = "tps6507x",
- .driver_data = (unsigned long) tps6507x_regs,},
- { },
-};
-MODULE_DEVICE_TABLE(i2c, tps_6507x_id);
-
-static struct i2c_driver tps_6507x_i2c_driver = {
+static struct platform_driver tps6507x_pmic_driver = {
.driver = {
- .name = "tps6507x",
+ .name = "tps6507x-pmic",
.owner = THIS_MODULE,
},
- .probe = tps_6507x_probe,
- .remove = __devexit_p(tps_6507x_remove),
- .id_table = tps_6507x_id,
+ .probe = tps6507x_pmic_probe,
};
-/**
- * tps_6507x_init
- *
- * Module init function
- */
-static int __init tps_6507x_init(void)
+static int __init tps6507x_pmic_init(void)
{
- return i2c_add_driver(&tps_6507x_i2c_driver);
+ return platform_driver_register(&tps6507x_pmic_driver);
}
-subsys_initcall(tps_6507x_init);
+subsys_initcall(tps6507x_pmic_init);
-/**
- * tps_6507x_cleanup
- *
- * Module exit function
- */
-static void __exit tps_6507x_cleanup(void)
+static void __exit tps6507x_pmic_cleanup(void)
{
- i2c_del_driver(&tps_6507x_i2c_driver);
+ platform_driver_unregister(&tps6507x_pmic_driver);
}
-module_exit(tps_6507x_cleanup);
+module_exit(tps6507x_pmic_cleanup);
MODULE_AUTHOR("Texas Instruments");
MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps6507x-pmic");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 02:16:30 +0000