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path: root/drivers/regulator/tps65023-regulator.c
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Diffstat (limited to 'drivers/regulator/tps65023-regulator.c')
-rw-r--r--drivers/regulator/tps65023-regulator.c183
1 files changed, 158 insertions, 25 deletions
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index 701a5900f83..9fb4c7b8175 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -63,6 +63,13 @@
#define TPS65023_REG_CTRL_LDO2_EN BIT(2)
#define TPS65023_REG_CTRL_LDO1_EN BIT(1)
+/* REG_CTRL2 bitfields */
+#define TPS65023_REG_CTRL2_GO BIT(7)
+#define TPS65023_REG_CTRL2_CORE_ADJ BIT(6)
+#define TPS65023_REG_CTRL2_DCDC2 BIT(2)
+#define TPS65023_REG_CTRL2_DCDC1 BIT(1)
+#define TPS65023_REG_CTRL2_DCDC3 BIT(0)
+
/* LDO_CTRL bitfields */
#define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4)
#define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4))
@@ -85,7 +92,7 @@
#define TPS65023_MAX_REG_ID TPS65023_LDO_2
/* Supported voltage values for regulators */
-static const u16 VDCDC1_VSEL_table[] = {
+static const u16 VCORE_VSEL_table[] = {
800, 825, 850, 875,
900, 925, 950, 975,
1000, 1025, 1050, 1075,
@@ -96,20 +103,29 @@ static const u16 VDCDC1_VSEL_table[] = {
1500, 1525, 1550, 1600,
};
-static const u16 LDO1_VSEL_table[] = {
+/* Supported voltage values for LDO regulators for tps65020 */
+static const u16 TPS65020_LDO1_VSEL_table[] = {
+ 1000, 1050, 1100, 1300,
+ 1800, 2500, 3000, 3300,
+};
+
+static const u16 TPS65020_LDO2_VSEL_table[] = {
+ 1000, 1050, 1100, 1300,
+ 1800, 2500, 3000, 3300,
+};
+
+/* Supported voltage values for LDO regulators
+ * for tps65021 and tps65023 */
+static const u16 TPS65023_LDO1_VSEL_table[] = {
1000, 1100, 1300, 1800,
2200, 2600, 2800, 3150,
};
-static const u16 LDO2_VSEL_table[] = {
+static const u16 TPS65023_LDO2_VSEL_table[] = {
1050, 1200, 1300, 1800,
2500, 2800, 3000, 3300,
};
-static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDC1_VSEL_table),
- 0, 0, ARRAY_SIZE(LDO1_VSEL_table),
- ARRAY_SIZE(LDO2_VSEL_table)};
-
/* Regulator specific details */
struct tps_info {
const char *name;
@@ -127,6 +143,13 @@ struct tps_pmic {
struct regulator_dev *rdev[TPS65023_NUM_REGULATOR];
const struct tps_info *info[TPS65023_NUM_REGULATOR];
struct regmap *regmap;
+ u8 core_regulator;
+};
+
+/* Struct passed as driver data */
+struct tps_driver_data {
+ const struct tps_info *info;
+ u8 core_regulator;
};
static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
@@ -253,7 +276,7 @@ static int tps65023_dcdc_get_voltage(struct regulator_dev *dev)
if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
return -EINVAL;
- if (dcdc == TPS65023_DCDC_1) {
+ if (dcdc == tps->core_regulator) {
data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE);
if (data < 0)
return data;
@@ -270,10 +293,10 @@ static int tps65023_dcdc_set_voltage(struct regulator_dev *dev,
struct tps_pmic *tps = rdev_get_drvdata(dev);
int dcdc = rdev_get_id(dev);
int vsel;
+ int ret;
- if (dcdc != TPS65023_DCDC_1)
+ if (dcdc != tps->core_regulator)
return -EINVAL;
-
if (min_uV < tps->info[dcdc]->min_uV
|| min_uV > tps->info[dcdc]->max_uV)
return -EINVAL;
@@ -292,11 +315,21 @@ static int tps65023_dcdc_set_voltage(struct regulator_dev *dev,
*selector = vsel;
- /* write to the register in case we found a match */
if (vsel == tps->info[dcdc]->table_len)
- return -EINVAL;
- else
- return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel);
+ goto failed;
+
+ ret = tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel);
+
+ /* Tell the chip that we have changed the value in DEFCORE
+ * and its time to update the core voltage
+ */
+ tps_65023_set_bits(tps, TPS65023_REG_CON_CTRL2,
+ TPS65023_REG_CTRL2_GO);
+
+ return ret;
+
+failed:
+ return -EINVAL;
}
static int tps65023_ldo_get_voltage(struct regulator_dev *dev)
@@ -362,7 +395,7 @@ static int tps65023_dcdc_list_voltage(struct regulator_dev *dev,
if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
return -EINVAL;
- if (dcdc == TPS65023_DCDC_1) {
+ if (dcdc == tps->core_regulator) {
if (selector >= tps->info[dcdc]->table_len)
return -EINVAL;
else
@@ -414,7 +447,8 @@ static struct regmap_config tps65023_regmap_config = {
static int __devinit tps_65023_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- const struct tps_info *info = (void *)id->driver_data;
+ const struct tps_driver_data *drv_data = (void *)id->driver_data;
+ const struct tps_info *info = drv_data->info;
struct regulator_init_data *init_data;
struct regulator_dev *rdev;
struct tps_pmic *tps;
@@ -446,6 +480,7 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
/* common for all regulators */
tps->client = client;
+ tps->core_regulator = drv_data->core_regulator;
for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) {
/* Store regulator specific information */
@@ -453,7 +488,7 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
tps->desc[i].name = info->name;
tps->desc[i].id = i;
- tps->desc[i].n_voltages = num_voltages[i];
+ tps->desc[i].n_voltages = info->table_len;
tps->desc[i].ops = (i > TPS65023_DCDC_3 ?
&tps65023_ldo_ops : &tps65023_dcdc_ops);
tps->desc[i].type = REGULATOR_VOLTAGE;
@@ -475,6 +510,14 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
i2c_set_clientdata(client, tps);
+ /* Enable setting output voltage by I2C */
+ tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2,
+ TPS65023_REG_CTRL2_CORE_ADJ);
+
+ /* Enable setting output voltage by I2C */
+ tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2,
+ TPS65023_REG_CTRL2_CORE_ADJ);
+
return 0;
fail:
@@ -507,13 +550,86 @@ static int __devexit tps_65023_remove(struct i2c_client *client)
return 0;
}
+static const struct tps_info tps65020_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65020_LDO1_VSEL_table),
+ .table = TPS65020_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65020_LDO2_VSEL_table),
+ .table = TPS65020_LDO2_VSEL_table,
+ },
+};
+
+static const struct tps_info tps65021_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
+ .table = TPS65023_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
+ .table = TPS65023_LDO2_VSEL_table,
+ },
+};
+
static const struct tps_info tps65023_regs[] = {
{
.name = "VDCDC1",
.min_uV = 800000,
.max_uV = 1600000,
- .table_len = ARRAY_SIZE(VDCDC1_VSEL_table),
- .table = VDCDC1_VSEL_table,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
},
{
.name = "VDCDC2",
@@ -531,23 +647,40 @@ static const struct tps_info tps65023_regs[] = {
.name = "LDO1",
.min_uV = 1000000,
.max_uV = 3150000,
- .table_len = ARRAY_SIZE(LDO1_VSEL_table),
- .table = LDO1_VSEL_table,
+ .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
+ .table = TPS65023_LDO1_VSEL_table,
},
{
.name = "LDO2",
.min_uV = 1050000,
.max_uV = 3300000,
- .table_len = ARRAY_SIZE(LDO2_VSEL_table),
- .table = LDO2_VSEL_table,
+ .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
+ .table = TPS65023_LDO2_VSEL_table,
},
};
+static struct tps_driver_data tps65020_drv_data = {
+ .info = tps65020_regs,
+ .core_regulator = TPS65023_DCDC_3,
+};
+
+static struct tps_driver_data tps65021_drv_data = {
+ .info = tps65021_regs,
+ .core_regulator = TPS65023_DCDC_3,
+};
+
+static struct tps_driver_data tps65023_drv_data = {
+ .info = tps65023_regs,
+ .core_regulator = TPS65023_DCDC_1,
+};
+
static const struct i2c_device_id tps_65023_id[] = {
{.name = "tps65023",
- .driver_data = (unsigned long) tps65023_regs,},
+ .driver_data = (unsigned long) &tps65023_drv_data},
{.name = "tps65021",
- .driver_data = (unsigned long) tps65023_regs,},
+ .driver_data = (unsigned long) &tps65021_drv_data,},
+ {.name = "tps65020",
+ .driver_data = (unsigned long) &tps65020_drv_data},
{ },
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-25 06:01:11 +0000