mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2026-06-13 15:03:58 +03:00
power: regulator: tps65941: Add TPS65224 PMIC regulator support
Reuse TPS65941 regulator driver to adds support for TPS65224 PMIC's regulators. 4 BUCKs and 3 LDOs, where BUCK1 and BUCK2 can be configured in dual phase mode. Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Bhargav Raviprakash
committed by
Jaehoon Chung
Jaehoon Chung
parent
5d7dbd22cf
commit
98e7e51fb1
@@ -37,6 +37,8 @@
|
||||
|
||||
#define TPS65941_BUCK_CONV_OPS_IDX 0
|
||||
#define TPS65941_LDO_CONV_OPS_IDX 0
|
||||
#define TPS65224_LDO_CONV_OPS_IDX 1
|
||||
#define TPS65224_BUCK_CONV_OPS_IDX 1
|
||||
|
||||
struct tps65941_reg_conv_ops {
|
||||
int volt_mask;
|
||||
@@ -55,6 +57,11 @@ static const char tps65941_ldo_ctrl[TPS65941_BUCK_NUM] = {0x1D, 0x1E, 0x1F,
|
||||
static const char tps65941_ldo_vout[TPS65941_BUCK_NUM] = {0x23, 0x24, 0x25,
|
||||
0x26};
|
||||
|
||||
static inline int tps65941_get_chip_id(struct udevice *dev)
|
||||
{
|
||||
return dev->parent->driver_data;
|
||||
}
|
||||
|
||||
static int tps65941_buck_enable(struct udevice *dev, int op, bool *enable)
|
||||
{
|
||||
int ret;
|
||||
@@ -146,6 +153,112 @@ int tps65941_lookup_slew(int id)
|
||||
}
|
||||
}
|
||||
|
||||
static int tps65224_buck_volt2val(int idx, int uV)
|
||||
{
|
||||
/* This functions maps a value which is in micro Volts to the VSET value.
|
||||
* The mapping is as per the datasheet of TPS65224.
|
||||
*/
|
||||
|
||||
if (uV > TPS65224_BUCK_VOLT_MAX)
|
||||
return -EINVAL;
|
||||
|
||||
if (idx > 0) {
|
||||
/* Buck2, Buck3 and Buck4 of TPS65224 has a different schema in
|
||||
* converting b/w micro_volt and VSET hex values
|
||||
*
|
||||
* VSET value starts from 0x00 for 0.5V, and for every increment
|
||||
* in VSET value the output voltage increases by 25mV. This is upto
|
||||
* 1.15V where VSET is 0x1A.
|
||||
*
|
||||
* For 0x1B the output voltage is 1.2V, and for every increment of
|
||||
* VSET the output voltage increases by 50mV upto the max voltage of
|
||||
* 3.3V
|
||||
*
|
||||
* | Voltage Ranges | VSET Ranges | Voltage Step |
|
||||
* +-----------------+--------------+--------------+
|
||||
* | 0.5V to 1.50V | 0x00 to 0x1A | 25mV |
|
||||
* | 1.2V to 3.3V | 0x1B to 0x45 | 50mV |
|
||||
*/
|
||||
if (uV >= 1200000)
|
||||
return (uV - 1200000) / 50000 + 0x1B;
|
||||
else if (uV >= 500000)
|
||||
return (uV - 500000) / 25000;
|
||||
else
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Buck1 and Buck12(dual phase) has a different mapping b/w output
|
||||
* voltage and VSET value.
|
||||
*
|
||||
* | Voltage Ranges | VSET Ranges | Voltage Step |
|
||||
* +-----------------+--------------+--------------+
|
||||
* | 0.5V to 0.58V | 0xA to 0xE | 20mV |
|
||||
* | 0.6V to 1.095V | 0xF to 0x72 | 5mV |
|
||||
* | 1.1V to 1.65V | 0x73 to 0xAA | 10mV |
|
||||
* | 1.6V to 3.3V | 0xAB to 0xFD | 20mV |
|
||||
*
|
||||
*/
|
||||
if (uV >= 1660000)
|
||||
return (uV - 1660000) / 20000 + 0xAB;
|
||||
else if (uV >= 1100000)
|
||||
return (uV - 1100000) / 10000 + 0x73;
|
||||
else if (uV >= 600000)
|
||||
return (uV - 600000) / 5000 + 0x0F;
|
||||
else if (uV >= 500000)
|
||||
return (uV - 500000) / 20000 + 0x0A;
|
||||
else
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int tps65224_buck_val2volt(int idx, int val)
|
||||
{
|
||||
/* This function does the opposite to the tps65224_buck_volt2val function
|
||||
* described above.
|
||||
* This maps the VSET value to micro volts. Please refer to the ranges
|
||||
* mentioned the comments of tps65224_buck_volt2val.
|
||||
*/
|
||||
|
||||
if (idx > 0) {
|
||||
if (val > TPS65224_BUCK234_VOLT_MAX_HEX)
|
||||
return -EINVAL;
|
||||
else if (val >= 0x1B)
|
||||
return 1200000 + (val - 0x1B) * 50000;
|
||||
else if (val >= 0x00)
|
||||
return 500000 + (val - 0x00) * 25000;
|
||||
else
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (val > TPS65224_BUCK1_VOLT_MAX_HEX)
|
||||
return -EINVAL;
|
||||
else if (val >= 0xAB)
|
||||
return 1660000 + (val - 0xAB) * 20000;
|
||||
else if (val >= 0x73)
|
||||
return 1100000 + (val - 0x73) * 10000;
|
||||
else if (val >= 0xF)
|
||||
return 600000 + (val - 0xF) * 5000;
|
||||
else if (val >= 0xA)
|
||||
return 500000 + (val - 0xA) * 20000;
|
||||
else
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
int tps65224_lookup_slew(int id)
|
||||
{
|
||||
switch (id) {
|
||||
case 0:
|
||||
return 10000;
|
||||
case 1:
|
||||
return 5000;
|
||||
case 2:
|
||||
return 2500;
|
||||
case 3:
|
||||
return 1250;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
static const struct tps65941_reg_conv_ops buck_conv_ops[] = {
|
||||
[TPS65941_BUCK_CONV_OPS_IDX] = {
|
||||
.volt_mask = TPS65941_BUCK_VOLT_MASK,
|
||||
@@ -154,6 +267,13 @@ static const struct tps65941_reg_conv_ops buck_conv_ops[] = {
|
||||
.slew_mask = TP65941_BUCK_CONF_SLEW_MASK,
|
||||
.lookup_slew = tps65941_lookup_slew,
|
||||
},
|
||||
[TPS65224_BUCK_CONV_OPS_IDX] = {
|
||||
.volt_mask = TPS65941_BUCK_VOLT_MASK,
|
||||
.volt2val = tps65224_buck_volt2val,
|
||||
.val2volt = tps65224_buck_val2volt,
|
||||
.slew_mask = TPS65224_BUCK_CONF_SLEW_MASK,
|
||||
.lookup_slew = tps65224_lookup_slew,
|
||||
},
|
||||
};
|
||||
|
||||
static int tps65941_buck_val(struct udevice *dev, int op, int *uV)
|
||||
@@ -162,9 +282,23 @@ static int tps65941_buck_val(struct udevice *dev, int op, int *uV)
|
||||
int ret, delta, uwait, slew, idx;
|
||||
struct dm_regulator_uclass_plat *uc_pdata;
|
||||
const struct tps65941_reg_conv_ops *conv_ops;
|
||||
ulong chip_id;
|
||||
|
||||
idx = dev->driver_data;
|
||||
conv_ops = &buck_conv_ops[TPS65941_BUCK_CONV_OPS_IDX];
|
||||
chip_id = tps65941_get_chip_id(dev);
|
||||
if (chip_id == TPS65224) {
|
||||
/* idx is the buck id number as per devicetree node which will be same
|
||||
* as the regulator name in the datasheet.
|
||||
* The idx for buck1. buck2, buck3, buck4, buck12 will be 1, 2, 3, 4
|
||||
* and 12 respectively.
|
||||
* In the driver the numbering is from 0. Hence the -1.
|
||||
*/
|
||||
idx = (idx == TPS65941_BUCK_ID_12) ? 0 : (idx - 1);
|
||||
conv_ops = &buck_conv_ops[TPS65224_BUCK_CONV_OPS_IDX];
|
||||
} else {
|
||||
conv_ops = &buck_conv_ops[TPS65941_BUCK_CONV_OPS_IDX];
|
||||
}
|
||||
|
||||
uc_pdata = dev_get_uclass_plat(dev);
|
||||
|
||||
if (op == PMIC_OP_GET)
|
||||
@@ -265,23 +399,99 @@ static int tps65941_ldo_val2volt(__maybe_unused int idx, int val)
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int tps65224_ldo_volt2val(int idx, int uV)
|
||||
{
|
||||
int base = TPS65224_LDO1_VOLT_MIN;
|
||||
int max = TPS65224_LDO1_VOLT_MAX;
|
||||
int offset = TPS65224_LDO1_VOLT_MIN_HEX;
|
||||
int step = TPS65224_LDO_STEP;
|
||||
|
||||
if (idx > 0) {
|
||||
base = TPS65224_LDO23_VOLT_MIN;
|
||||
max = TPS65224_LDO23_VOLT_MAX;
|
||||
offset = TPS65224_LDO23_VOLT_MIN_HEX;
|
||||
}
|
||||
|
||||
if (uV > max)
|
||||
return -EINVAL;
|
||||
else if (uV >= base)
|
||||
return (uV - base) / step + offset;
|
||||
else
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int tps65224_ldo_val2volt(int idx, int val)
|
||||
{
|
||||
int reg_base = TPS65224_LDO1_VOLT_MIN_HEX;
|
||||
int reg_max = TPS65224_LDO1_VOLT_MAX_HEX;
|
||||
int base = TPS65224_LDO1_VOLT_MIN;
|
||||
int max = TPS65224_LDO1_VOLT_MAX;
|
||||
int step = TPS65224_LDO_STEP;
|
||||
/* In LDOx_VOUT reg the BIT0 is reserved and the
|
||||
* vout value is stored from BIT1 to BIT7.
|
||||
* Hence the below bit shit is done.
|
||||
*/
|
||||
int mask = TPS65224_LDO_VOLT_MASK >> 1;
|
||||
|
||||
if (idx > 0) {
|
||||
base = TPS65224_LDO23_VOLT_MIN;
|
||||
max = TPS65224_LDO23_VOLT_MAX;
|
||||
reg_base = TPS65224_LDO23_VOLT_MIN_HEX;
|
||||
reg_max = TPS65224_LDO23_VOLT_MAX_HEX;
|
||||
}
|
||||
|
||||
/* The VSET register of LDO has its 0th bit as reserved
|
||||
* hence shifting the value to right by 1 bit.
|
||||
*/
|
||||
val = val >> 1;
|
||||
|
||||
if (val < 0 || val > mask)
|
||||
return -EINVAL;
|
||||
|
||||
if (val <= reg_base)
|
||||
return base;
|
||||
|
||||
if (val >= reg_max)
|
||||
return max;
|
||||
|
||||
return base + (step * (val - reg_base));
|
||||
}
|
||||
|
||||
static const struct tps65941_reg_conv_ops ldo_conv_ops[] = {
|
||||
[TPS65941_LDO_CONV_OPS_IDX] = {
|
||||
.volt_mask = TPS65941_LDO_VOLT_MASK,
|
||||
.volt2val = tps65941_buck_volt2val,
|
||||
.val2volt = tps65941_ldo_val2volt,
|
||||
},
|
||||
[TPS65224_LDO_CONV_OPS_IDX] = {
|
||||
.volt_mask = TPS65224_LDO_VOLT_MASK,
|
||||
.volt2val = tps65224_ldo_volt2val,
|
||||
.val2volt = tps65224_ldo_val2volt,
|
||||
},
|
||||
};
|
||||
|
||||
static int tps65941_ldo_val(struct udevice *dev, int op, int *uV)
|
||||
{
|
||||
unsigned int hex, adr;
|
||||
int ret, idx;
|
||||
int ret, ret_volt, idx;
|
||||
struct dm_regulator_uclass_plat *uc_pdata;
|
||||
const struct tps65941_reg_conv_ops *conv_ops;
|
||||
ulong chip_id;
|
||||
|
||||
chip_id = tps65941_get_chip_id(dev);
|
||||
idx = dev->driver_data;
|
||||
conv_ops = &ldo_conv_ops[TPS65941_LDO_CONV_OPS_IDX];
|
||||
if (chip_id == TPS65224) {
|
||||
/* idx is the ldo id number as per devicetree node which will be same
|
||||
* as the regulator name in the datasheet.
|
||||
* The idx for ldo1, ldo2, ldo3 will be 1, 2 & 3 respectively.
|
||||
* In the driver the numbering is from 0. Hence the -1.
|
||||
*/
|
||||
idx = idx - 1;
|
||||
conv_ops = &ldo_conv_ops[TPS65224_LDO_CONV_OPS_IDX];
|
||||
} else {
|
||||
conv_ops = &ldo_conv_ops[TPS65941_LDO_CONV_OPS_IDX];
|
||||
}
|
||||
|
||||
uc_pdata = dev_get_uclass_plat(dev);
|
||||
|
||||
if (op == PMIC_OP_GET)
|
||||
@@ -294,21 +504,36 @@ static int tps65941_ldo_val(struct udevice *dev, int op, int *uV)
|
||||
return ret;
|
||||
|
||||
ret &= conv_ops->volt_mask;
|
||||
ret = conv_ops->val2volt(idx, ret);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
ret_volt = conv_ops->val2volt(idx, ret);
|
||||
if (ret_volt < 0)
|
||||
return ret_volt;
|
||||
|
||||
if (op == PMIC_OP_GET) {
|
||||
*uV = ret;
|
||||
*uV = ret_volt;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* TPS65224 LDO1 in BYPASS mode only supports 2.2V min to 3.6V max */
|
||||
if (chip_id == TPS65224 && idx == 0 && (ret & BIT(TPS65224_LDO_BYP_CONFIG)) &&
|
||||
*uV < TPS65224_LDO1_VOLT_BYP_MIN)
|
||||
return -EINVAL;
|
||||
|
||||
/* TPS65224 LDO2 & LDO3 in BYPASS mode supports 1.5V min to 5.5V max */
|
||||
if (chip_id == TPS65224 && idx > 0 && (ret & BIT(TPS65224_LDO_BYP_CONFIG)) &&
|
||||
*uV < TPS65224_LDO23_VOLT_BYP_MIN)
|
||||
return -EINVAL;
|
||||
|
||||
hex = conv_ops->volt2val(idx, *uV);
|
||||
if (hex < 0)
|
||||
return hex;
|
||||
|
||||
ret &= 0x0;
|
||||
ret = hex;
|
||||
if (chip_id == TPS65224) {
|
||||
hex = hex << TPS65941_LDO_MODE_MASK;
|
||||
ret &= ~TPS65224_LDO_VOLT_MASK;
|
||||
ret |= hex;
|
||||
} else {
|
||||
ret = hex;
|
||||
}
|
||||
|
||||
ret = pmic_reg_write(dev->parent, adr, ret);
|
||||
|
||||
@@ -319,6 +544,9 @@ static int tps65941_ldo_probe(struct udevice *dev)
|
||||
{
|
||||
struct dm_regulator_uclass_plat *uc_pdata;
|
||||
int idx;
|
||||
ulong chip_id;
|
||||
|
||||
chip_id = tps65941_get_chip_id(dev);
|
||||
|
||||
uc_pdata = dev_get_uclass_plat(dev);
|
||||
uc_pdata->type = REGULATOR_TYPE_LDO;
|
||||
@@ -328,9 +556,13 @@ static int tps65941_ldo_probe(struct udevice *dev)
|
||||
case TPS65941_LDO_ID_1:
|
||||
case TPS65941_LDO_ID_2:
|
||||
case TPS65941_LDO_ID_3:
|
||||
case TPS65941_LDO_ID_4:
|
||||
debug("Single phase regulator\n");
|
||||
break;
|
||||
case TPS65941_LDO_ID_4:
|
||||
if (chip_id != TPS65224) {
|
||||
debug("Single phase regulator\n");
|
||||
break;
|
||||
}
|
||||
default:
|
||||
pr_err("Wrong ID for regulator\n");
|
||||
return -EINVAL;
|
||||
@@ -346,6 +578,9 @@ static int tps65941_buck_probe(struct udevice *dev)
|
||||
{
|
||||
struct dm_regulator_uclass_plat *uc_pdata;
|
||||
int idx;
|
||||
ulong chip_id;
|
||||
|
||||
chip_id = tps65941_get_chip_id(dev);
|
||||
|
||||
uc_pdata = dev_get_uclass_plat(dev);
|
||||
uc_pdata->type = REGULATOR_TYPE_BUCK;
|
||||
@@ -356,16 +591,35 @@ static int tps65941_buck_probe(struct udevice *dev)
|
||||
case TPS65941_BUCK_ID_2:
|
||||
case TPS65941_BUCK_ID_3:
|
||||
case TPS65941_BUCK_ID_4:
|
||||
case TPS65941_BUCK_ID_5:
|
||||
debug("Single phase regulator\n");
|
||||
break;
|
||||
case TPS65941_BUCK_ID_5:
|
||||
if (chip_id != TPS65224) {
|
||||
debug("Single phase regulator\n");
|
||||
} else {
|
||||
pr_err("Wrong ID for regulator\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
break;
|
||||
case TPS65941_BUCK_ID_12:
|
||||
case TPS65941_BUCK_ID_123:
|
||||
case TPS65941_BUCK_ID_1234:
|
||||
idx = 1;
|
||||
break;
|
||||
case TPS65941_BUCK_ID_123:
|
||||
case TPS65941_BUCK_ID_1234:
|
||||
if (chip_id != TPS65224) {
|
||||
idx = 1;
|
||||
} else {
|
||||
pr_err("Wrong ID for regulator\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
break;
|
||||
case TPS65941_BUCK_ID_34:
|
||||
idx = 3;
|
||||
if (chip_id != TPS65224) {
|
||||
idx = 3;
|
||||
} else {
|
||||
pr_err("Wrong ID for regulator\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
pr_err("Wrong ID for regulator\n");
|
||||
|
||||
Reference in New Issue
Block a user