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path: root/drivers/regulator/tps65912-regulator.c
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Diffstat (limited to 'drivers/regulator/tps65912-regulator.c')
-rw-r--r--drivers/regulator/tps65912-regulator.c340
1 files changed, 64 insertions, 276 deletions
diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index da00d88f94b7..b36799b1f530 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -114,10 +114,7 @@ struct tps65912_reg {
struct mutex io_lock;
int mode;
int (*get_ctrl_reg)(int);
- int dcdc1_range;
- int dcdc2_range;
- int dcdc3_range;
- int dcdc4_range;
+ int dcdc_range[TPS65912_NUM_DCDC];
int pwm_mode_reg;
int eco_reg;
};
@@ -125,46 +122,31 @@ struct tps65912_reg {
static int tps65912_get_range(struct tps65912_reg *pmic, int id)
{
struct tps65912 *mfd = pmic->mfd;
-
- if (id > TPS65912_REG_DCDC4)
- return 0;
+ int range;
switch (id) {
case TPS65912_REG_DCDC1:
- pmic->dcdc1_range = tps65912_reg_read(mfd,
- TPS65912_DCDC1_LIMIT);
- if (pmic->dcdc1_range < 0)
- return pmic->dcdc1_range;
- pmic->dcdc1_range = (pmic->dcdc1_range &
- DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
- return pmic->dcdc1_range;
+ range = tps65912_reg_read(mfd, TPS65912_DCDC1_LIMIT);
+ break;
case TPS65912_REG_DCDC2:
- pmic->dcdc2_range = tps65912_reg_read(mfd,
- TPS65912_DCDC2_LIMIT);
- if (pmic->dcdc2_range < 0)
- return pmic->dcdc2_range;
- pmic->dcdc2_range = (pmic->dcdc2_range &
- DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
- return pmic->dcdc2_range;
+ range = tps65912_reg_read(mfd, TPS65912_DCDC2_LIMIT);
+ break;
case TPS65912_REG_DCDC3:
- pmic->dcdc3_range = tps65912_reg_read(mfd,
- TPS65912_DCDC3_LIMIT);
- if (pmic->dcdc3_range < 0)
- return pmic->dcdc3_range;
- pmic->dcdc3_range = (pmic->dcdc3_range &
- DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
- return pmic->dcdc3_range;
+ range = tps65912_reg_read(mfd, TPS65912_DCDC3_LIMIT);
+ break;
case TPS65912_REG_DCDC4:
- pmic->dcdc4_range = tps65912_reg_read(mfd,
- TPS65912_DCDC4_LIMIT);
- if (pmic->dcdc4_range < 0)
- return pmic->dcdc4_range;
- pmic->dcdc4_range = (pmic->dcdc4_range &
- DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
- return pmic->dcdc4_range;
+ 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)
@@ -219,146 +201,30 @@ static unsigned long tps65912_vsel_to_uv_ldo(u8 vsel)
static int tps65912_get_ctrl_register(int id)
{
- switch (id) {
- case TPS65912_REG_DCDC1:
- return TPS65912_DCDC1_AVS;
- case TPS65912_REG_DCDC2:
- return TPS65912_DCDC2_AVS;
- case TPS65912_REG_DCDC3:
- return TPS65912_DCDC3_AVS;
- case TPS65912_REG_DCDC4:
- return TPS65912_DCDC4_AVS;
- case TPS65912_REG_LDO1:
- return TPS65912_LDO1_AVS;
- case TPS65912_REG_LDO2:
- return TPS65912_LDO2_AVS;
- case TPS65912_REG_LDO3:
- return TPS65912_LDO3_AVS;
- case TPS65912_REG_LDO4:
- return TPS65912_LDO4_AVS;
- case TPS65912_REG_LDO5:
- return TPS65912_LDO5;
- case TPS65912_REG_LDO6:
- return TPS65912_LDO6;
- case TPS65912_REG_LDO7:
- return TPS65912_LDO7;
- case TPS65912_REG_LDO8:
- return TPS65912_LDO8;
- case TPS65912_REG_LDO9:
- return TPS65912_LDO9;
- case TPS65912_REG_LDO10:
- return TPS65912_LDO10;
- default:
+ 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_dcdc_sel_register(struct tps65912_reg *pmic, int id)
+static int tps65912_get_sel_register(struct tps65912_reg *pmic, int id)
{
struct tps65912 *mfd = pmic->mfd;
- int opvsel = 0, sr = 0;
+ int opvsel;
u8 reg = 0;
- if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_DCDC4)
- return -EINVAL;
-
- switch (id) {
- case TPS65912_REG_DCDC1:
- opvsel = tps65912_reg_read(mfd, TPS65912_DCDC1_OP);
- sr = ((opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT);
- if (sr)
- reg = TPS65912_DCDC1_AVS;
- else
- reg = TPS65912_DCDC1_OP;
- break;
- case TPS65912_REG_DCDC2:
- opvsel = tps65912_reg_read(mfd, TPS65912_DCDC2_OP);
- sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
- if (sr)
- reg = TPS65912_DCDC2_AVS;
- else
- reg = TPS65912_DCDC2_OP;
- break;
- case TPS65912_REG_DCDC3:
- opvsel = tps65912_reg_read(mfd, TPS65912_DCDC3_OP);
- sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
- if (sr)
- reg = TPS65912_DCDC3_AVS;
- else
- reg = TPS65912_DCDC3_OP;
- break;
- case TPS65912_REG_DCDC4:
- opvsel = tps65912_reg_read(mfd, TPS65912_DCDC4_OP);
- sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
- if (sr)
- reg = TPS65912_DCDC4_AVS;
+ 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 = TPS65912_DCDC4_OP;
- break;
- }
- return reg;
-}
-
-static int tps65912_get_ldo_sel_register(struct tps65912_reg *pmic, int id)
-{
- struct tps65912 *mfd = pmic->mfd;
- int opvsel = 0, sr = 0;
- u8 reg = 0;
-
- if (id < TPS65912_REG_LDO1 || id > TPS65912_REG_LDO10)
+ 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;
-
- switch (id) {
- case TPS65912_REG_LDO1:
- opvsel = tps65912_reg_read(mfd, TPS65912_LDO1_OP);
- sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
- if (sr)
- reg = TPS65912_LDO1_AVS;
- else
- reg = TPS65912_LDO1_OP;
- break;
- case TPS65912_REG_LDO2:
- opvsel = tps65912_reg_read(mfd, TPS65912_LDO2_OP);
- sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
- if (sr)
- reg = TPS65912_LDO2_AVS;
- else
- reg = TPS65912_LDO2_OP;
- break;
- case TPS65912_REG_LDO3:
- opvsel = tps65912_reg_read(mfd, TPS65912_LDO3_OP);
- sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
- if (sr)
- reg = TPS65912_LDO3_AVS;
- else
- reg = TPS65912_LDO3_OP;
- break;
- case TPS65912_REG_LDO4:
- opvsel = tps65912_reg_read(mfd, TPS65912_LDO4_OP);
- sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
- if (sr)
- reg = TPS65912_LDO4_AVS;
- else
- reg = TPS65912_LDO4_OP;
- break;
- case TPS65912_REG_LDO5:
- reg = TPS65912_LDO5;
- break;
- case TPS65912_REG_LDO6:
- reg = TPS65912_LDO6;
- break;
- case TPS65912_REG_LDO7:
- reg = TPS65912_LDO7;
- break;
- case TPS65912_REG_LDO8:
- reg = TPS65912_LDO8;
- break;
- case TPS65912_REG_LDO9:
- reg = TPS65912_LDO9;
- break;
- case TPS65912_REG_LDO10:
- reg = TPS65912_LDO10;
- break;
}
return reg;
@@ -506,151 +372,83 @@ static unsigned int tps65912_get_mode(struct regulator_dev *dev)
return mode;
}
-static int tps65912_get_voltage_dcdc(struct regulator_dev *dev)
+static int tps65912_list_voltage_dcdc(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), voltage = 0, range;
- int opvsel = 0, avsel = 0, sr, vsel;
+ int range, voltage = 0, id = rdev_get_id(dev);
- switch (id) {
- case TPS65912_REG_DCDC1:
- opvsel = tps65912_reg_read(mfd, TPS65912_DCDC1_OP);
- avsel = tps65912_reg_read(mfd, TPS65912_DCDC1_AVS);
- range = pmic->dcdc1_range;
- break;
- case TPS65912_REG_DCDC2:
- opvsel = tps65912_reg_read(mfd, TPS65912_DCDC2_OP);
- avsel = tps65912_reg_read(mfd, TPS65912_DCDC2_AVS);
- range = pmic->dcdc2_range;
- break;
- case TPS65912_REG_DCDC3:
- opvsel = tps65912_reg_read(mfd, TPS65912_DCDC3_OP);
- avsel = tps65912_reg_read(mfd, TPS65912_DCDC3_AVS);
- range = pmic->dcdc3_range;
- break;
- case TPS65912_REG_DCDC4:
- opvsel = tps65912_reg_read(mfd, TPS65912_DCDC4_OP);
- avsel = tps65912_reg_read(mfd, TPS65912_DCDC4_AVS);
- range = pmic->dcdc4_range;
- break;
- default:
+ if (id > TPS65912_REG_DCDC4)
return -EINVAL;
- }
- sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
- if (sr)
- vsel = avsel;
- else
- vsel = opvsel;
- vsel &= 0x3F;
+ range = pmic->dcdc_range[id];
switch (range) {
case 0:
/* 0.5 - 1.2875V in 12.5mV steps */
- voltage = tps65912_vsel_to_uv_range0(vsel);
+ voltage = tps65912_vsel_to_uv_range0(selector);
break;
case 1:
/* 0.7 - 1.4875V in 12.5mV steps */
- voltage = tps65912_vsel_to_uv_range1(vsel);
+ voltage = tps65912_vsel_to_uv_range1(selector);
break;
case 2:
/* 0.5 - 2.075V in 25mV steps */
- voltage = tps65912_vsel_to_uv_range2(vsel);
+ voltage = tps65912_vsel_to_uv_range2(selector);
break;
case 3:
/* 0.5 - 3.8V in 50mV steps */
- voltage = tps65912_vsel_to_uv_range3(vsel);
+ voltage = tps65912_vsel_to_uv_range3(selector);
break;
}
return voltage;
}
-static int tps65912_set_voltage_dcdc(struct regulator_dev *dev,
- unsigned selector)
+static int tps65912_get_voltage_dcdc(struct regulator_dev *dev)
{
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_dcdc_sel_register(pmic, id);
- value = tps65912_reg_read(mfd, reg);
- value &= 0xC0;
- return tps65912_reg_write(mfd, reg, selector | value);
-}
+ int reg, vsel;
-static int tps65912_get_voltage_ldo(struct regulator_dev *dev)
-{
- struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- struct tps65912 *mfd = pmic->mfd;
- int id = rdev_get_id(dev);
- int vsel = 0;
- u8 reg;
+ reg = tps65912_get_sel_register(pmic, id);
+ if (reg < 0)
+ return reg;
- reg = tps65912_get_ldo_sel_register(pmic, id);
vsel = tps65912_reg_read(mfd, reg);
vsel &= 0x3F;
- return tps65912_vsel_to_uv_ldo(vsel);
+ return tps65912_list_voltage_dcdc(dev, vsel);
}
-static int tps65912_set_voltage_ldo(struct regulator_dev *dev,
- unsigned selector)
+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), reg, value;
+ int id = rdev_get_id(dev);
+ int value;
+ u8 reg;
- reg = tps65912_get_ldo_sel_register(pmic, id);
+ reg = tps65912_get_sel_register(pmic, id);
value = tps65912_reg_read(mfd, reg);
value &= 0xC0;
return tps65912_reg_write(mfd, reg, selector | value);
}
-static int tps65912_list_voltage_dcdc(struct regulator_dev *dev,
- unsigned selector)
+static int tps65912_get_voltage_ldo(struct regulator_dev *dev)
{
struct tps65912_reg *pmic = rdev_get_drvdata(dev);
- int range, voltage = 0, id = rdev_get_id(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int vsel = 0;
+ u8 reg;
- switch (id) {
- case TPS65912_REG_DCDC1:
- range = pmic->dcdc1_range;
- break;
- case TPS65912_REG_DCDC2:
- range = pmic->dcdc2_range;
- break;
- case TPS65912_REG_DCDC3:
- range = pmic->dcdc3_range;
- break;
- case TPS65912_REG_DCDC4:
- range = pmic->dcdc4_range;
- break;
- default:
- return -EINVAL;
- }
+ reg = tps65912_get_sel_register(pmic, id);
+ vsel = tps65912_reg_read(mfd, reg);
+ vsel &= 0x3F;
- 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;
+ return tps65912_vsel_to_uv_ldo(vsel);
}
static int tps65912_list_voltage_ldo(struct regulator_dev *dev,
@@ -672,7 +470,7 @@ static struct regulator_ops tps65912_ops_dcdc = {
.set_mode = tps65912_set_mode,
.get_mode = tps65912_get_mode,
.get_voltage = tps65912_get_voltage_dcdc,
- .set_voltage_sel = tps65912_set_voltage_dcdc,
+ .set_voltage_sel = tps65912_set_voltage_sel,
.list_voltage = tps65912_list_voltage_dcdc,
};
@@ -682,7 +480,7 @@ static struct regulator_ops tps65912_ops_ldo = {
.enable = tps65912_reg_enable,
.disable = tps65912_reg_disable,
.get_voltage = tps65912_get_voltage_ldo,
- .set_voltage_sel = tps65912_set_voltage_ldo,
+ .set_voltage_sel = tps65912_set_voltage_sel,
.list_voltage = tps65912_list_voltage_ldo,
};
@@ -770,22 +568,12 @@ static struct platform_driver tps65912_driver = {
.remove = __devexit_p(tps65912_remove),
};
-/**
- * tps65912_init
- *
- * Module init function
- */
static int __init tps65912_init(void)
{
return platform_driver_register(&tps65912_driver);
}
subsys_initcall(tps65912_init);
-/**
- * tps65912_cleanup
- *
- * Module exit function
- */
static void __exit tps65912_cleanup(void)
{
platform_driver_unregister(&tps65912_driver);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.