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Diffstat (limited to 'drivers/regulator/da903x.c')
-rw-r--r--drivers/regulator/da903x.c209
1 files changed, 77 insertions, 132 deletions
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index 1851f0929ef0..1005f5f7e603 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -76,9 +76,7 @@
struct da903x_regulator_info {
struct regulator_desc desc;
- int min_uV;
int max_uV;
- int step_uV;
int vol_reg;
int vol_shift;
int vol_nbits;
@@ -88,10 +86,6 @@ struct da903x_regulator_info {
int enable_bit;
};
-static int da9034_ldo12_data[] = { 1700, 1750, 1800, 1850, 1900, 1950,
- 2000, 2050, 2700, 2750, 2800, 2850,
- 2900, 2950, 3000, 3050 };
-
static inline struct device *to_da903x_dev(struct regulator_dev *rdev)
{
return rdev_get_dev(rdev)->parent->parent;
@@ -100,34 +94,26 @@ static inline struct device *to_da903x_dev(struct regulator_dev *rdev)
static inline int check_range(struct da903x_regulator_info *info,
int min_uV, int max_uV)
{
- if (min_uV < info->min_uV || min_uV > info->max_uV)
+ if (min_uV < info->desc.min_uV || min_uV > info->max_uV)
return -EINVAL;
return 0;
}
/* DA9030/DA9034 common operations */
-static int da903x_set_ldo_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *selector)
+static int da903x_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
- if (check_range(info, min_uV, max_uV)) {
- pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
- return -EINVAL;
- }
-
- val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
- *selector = val;
- val <<= info->vol_shift;
+ val = selector << info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
return da903x_update(da9034_dev, info->vol_reg, val, mask);
}
-static int da903x_get_voltage(struct regulator_dev *rdev)
+static int da903x_get_voltage_sel(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev);
@@ -141,7 +127,7 @@ static int da903x_get_voltage(struct regulator_dev *rdev)
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
val = (val & mask) >> info->vol_shift;
- return info->min_uV + info->step_uV * val;
+ return val;
}
static int da903x_enable(struct regulator_dev *rdev)
@@ -176,35 +162,16 @@ static int da903x_is_enabled(struct regulator_dev *rdev)
return !!(reg_val & (1 << info->enable_bit));
}
-static int da903x_list_voltage(struct regulator_dev *rdev, unsigned selector)
-{
- struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- int ret;
-
- ret = info->min_uV + info->step_uV * selector;
- if (ret > info->max_uV)
- return -EINVAL;
- return ret;
-}
-
/* DA9030 specific operations */
-static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV,
- unsigned *selector)
+static int da9030_set_ldo1_15_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da903x_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
- if (check_range(info, min_uV, max_uV)) {
- pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
- return -EINVAL;
- }
-
- val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
- *selector = val;
- val <<= info->vol_shift;
+ val = selector << info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
val |= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
mask |= DA9030_LDO_UNLOCK_MASK;
@@ -217,73 +184,57 @@ static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
return da903x_update(da903x_dev, info->vol_reg, val, mask);
}
-static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV,
- unsigned *selector)
+static int da9030_map_ldo14_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da903x_dev = to_da903x_dev(rdev);
- uint8_t val, mask;
- int thresh;
+ int thresh, sel;
if (check_range(info, min_uV, max_uV)) {
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
return -EINVAL;
}
- thresh = (info->max_uV + info->min_uV) / 2;
+ thresh = (info->max_uV + info->desc.min_uV) / 2;
if (min_uV < thresh) {
- val = DIV_ROUND_UP(thresh - min_uV, info->step_uV);
- val |= 0x4;
+ sel = DIV_ROUND_UP(thresh - min_uV, info->desc.uV_step);
+ sel |= 0x4;
} else {
- val = DIV_ROUND_UP(min_uV - thresh, info->step_uV);
+ sel = DIV_ROUND_UP(min_uV - thresh, info->desc.uV_step);
}
- *selector = val;
- val <<= info->vol_shift;
- mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
-
- return da903x_update(da903x_dev, info->vol_reg, val, mask);
+ return sel;
}
-static int da9030_get_ldo14_voltage(struct regulator_dev *rdev)
+static int da9030_list_ldo14_voltage(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da903x_dev = to_da903x_dev(rdev);
- uint8_t val, mask;
- int ret;
+ int volt;
- ret = da903x_read(da903x_dev, info->vol_reg, &val);
- if (ret)
- return ret;
+ if (selector & 0x4)
+ volt = rdev->desc->min_uV +
+ rdev->desc->uV_step * (3 - (selector & ~0x4));
+ else
+ volt = (info->max_uV + rdev->desc->min_uV) / 2 +
+ rdev->desc->uV_step * (selector & ~0x4);
- mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
- val = (val & mask) >> info->vol_shift;
+ if (volt > info->max_uV)
+ return -EINVAL;
- if (val & 0x4)
- return info->min_uV + info->step_uV * (3 - (val & ~0x4));
- else
- return (info->max_uV + info->min_uV) / 2 +
- info->step_uV * (val & ~0x4);
+ return volt;
}
/* DA9034 specific operations */
-static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *selector)
+static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
- if (check_range(info, min_uV, max_uV)) {
- pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
- return -EINVAL;
- }
-
- val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
- *selector = val;
- val <<= info->vol_shift;
+ val = selector << info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
@@ -295,59 +246,45 @@ static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
return ret;
}
-static int da9034_set_ldo12_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *selector)
+static int da9034_map_ldo12_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = to_da903x_dev(rdev);
- uint8_t val, mask;
+ int sel;
if (check_range(info, min_uV, max_uV)) {
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
return -EINVAL;
}
- val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
- val = (val >= 20) ? val - 12 : ((val > 7) ? 8 : val);
- *selector = val;
- val <<= info->vol_shift;
- mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+ sel = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
+ sel = (sel >= 20) ? sel - 12 : ((sel > 7) ? 8 : sel);
- return da903x_update(da9034_dev, info->vol_reg, val, mask);
+ return sel;
}
-static int da9034_get_ldo12_voltage(struct regulator_dev *rdev)
+static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
- struct device *da9034_dev = to_da903x_dev(rdev);
- uint8_t val, mask;
- int ret;
-
- ret = da903x_read(da9034_dev, info->vol_reg, &val);
- if (ret)
- return ret;
-
- mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
- val = (val & mask) >> info->vol_shift;
+ int volt;
- if (val >= 8)
- return 2700000 + info->step_uV * (val - 8);
-
- return info->min_uV + info->step_uV * val;
-}
+ if (selector >= 8)
+ volt = 2700000 + rdev->desc->uV_step * (selector - 8);
+ else
+ volt = rdev->desc->min_uV + rdev->desc->uV_step * selector;
-static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
- unsigned selector)
-{
- if (selector >= ARRAY_SIZE(da9034_ldo12_data))
+ if (volt > info->max_uV)
return -EINVAL;
- return da9034_ldo12_data[selector] * 1000;
+
+ return volt;
}
static struct regulator_ops da903x_regulator_ldo_ops = {
- .set_voltage = da903x_set_ldo_voltage,
- .get_voltage = da903x_get_voltage,
- .list_voltage = da903x_list_voltage,
+ .set_voltage_sel = da903x_set_voltage_sel,
+ .get_voltage_sel = da903x_get_voltage_sel,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
@@ -355,9 +292,10 @@ static struct regulator_ops da903x_regulator_ldo_ops = {
/* NOTE: this is dedicated for the insane DA9030 LDO14 */
static struct regulator_ops da9030_regulator_ldo14_ops = {
- .set_voltage = da9030_set_ldo14_voltage,
- .get_voltage = da9030_get_ldo14_voltage,
- .list_voltage = da903x_list_voltage,
+ .set_voltage_sel = da903x_set_voltage_sel,
+ .get_voltage_sel = da903x_get_voltage_sel,
+ .list_voltage = da9030_list_ldo14_voltage,
+ .map_voltage = da9030_map_ldo14_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
@@ -365,18 +303,20 @@ static struct regulator_ops da9030_regulator_ldo14_ops = {
/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */
static struct regulator_ops da9030_regulator_ldo1_15_ops = {
- .set_voltage = da9030_set_ldo1_15_voltage,
- .get_voltage = da903x_get_voltage,
- .list_voltage = da903x_list_voltage,
+ .set_voltage_sel = da9030_set_ldo1_15_voltage_sel,
+ .get_voltage_sel = da903x_get_voltage_sel,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
};
static struct regulator_ops da9034_regulator_dvc_ops = {
- .set_voltage = da9034_set_dvc_voltage,
- .get_voltage = da903x_get_voltage,
- .list_voltage = da903x_list_voltage,
+ .set_voltage_sel = da9034_set_dvc_voltage_sel,
+ .get_voltage_sel = da903x_get_voltage_sel,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
@@ -384,9 +324,10 @@ static struct regulator_ops da9034_regulator_dvc_ops = {
/* NOTE: this is dedicated for the insane LDO12 */
static struct regulator_ops da9034_regulator_ldo12_ops = {
- .set_voltage = da9034_set_ldo12_voltage,
- .get_voltage = da9034_get_ldo12_voltage,
+ .set_voltage_sel = da903x_set_voltage_sel,
+ .get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = da9034_list_ldo12_voltage,
+ .map_voltage = da9034_map_ldo12_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
@@ -401,10 +342,10 @@ static struct regulator_ops da9034_regulator_ldo12_ops = {
.id = _pmic##_ID_LDO##_id, \
.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
.owner = THIS_MODULE, \
+ .min_uV = (min) * 1000, \
+ .uV_step = (step) * 1000, \
}, \
- .min_uV = (min) * 1000, \
.max_uV = (max) * 1000, \
- .step_uV = (step) * 1000, \
.vol_reg = _pmic##_##vreg, \
.vol_shift = (shift), \
.vol_nbits = (nbits), \
@@ -421,10 +362,10 @@ static struct regulator_ops da9034_regulator_ldo12_ops = {
.id = _pmic##_ID_##_id, \
.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
.owner = THIS_MODULE, \
+ .min_uV = (min) * 1000, \
+ .uV_step = (step) * 1000, \
}, \
- .min_uV = (min) * 1000, \
.max_uV = (max) * 1000, \
- .step_uV = (step) * 1000, \
.vol_reg = _pmic##_##vreg, \
.vol_shift = (0), \
.vol_nbits = (nbits), \
@@ -517,6 +458,7 @@ static int __devinit da903x_regulator_probe(struct platform_device *pdev)
{
struct da903x_regulator_info *ri = NULL;
struct regulator_dev *rdev;
+ struct regulator_config config = { };
ri = find_regulator_info(pdev->id);
if (ri == NULL) {
@@ -527,7 +469,7 @@ static int __devinit da903x_regulator_probe(struct platform_device *pdev)
/* Workaround for the weird LDO12 voltage setting */
if (ri->desc.id == DA9034_ID_LDO12) {
ri->desc.ops = &da9034_regulator_ldo12_ops;
- ri->desc.n_voltages = ARRAY_SIZE(da9034_ldo12_data);
+ ri->desc.n_voltages = 16;
}
if (ri->desc.id == DA9030_ID_LDO14)
@@ -536,8 +478,11 @@ static int __devinit da903x_regulator_probe(struct platform_device *pdev)
if (ri->desc.id == DA9030_ID_LDO1 || ri->desc.id == DA9030_ID_LDO15)
ri->desc.ops = &da9030_regulator_ldo1_15_ops;
- rdev = regulator_register(&ri->desc, &pdev->dev,
- pdev->dev.platform_data, ri, NULL);
+ config.dev = &pdev->dev;
+ config.init_data = pdev->dev.platform_data;
+ config.driver_data = ri;
+
+ rdev = regulator_register(&ri->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
ri->desc.name);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.