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Code

regulator: da903x: Convert to set_voltage_sel and map_voltage

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Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2012-05-15 10:06:27 +08:00 committed by Mark Brown
parent 70b4e7862d
commit c972a02948
1 changed files with 54 additions and 56 deletions
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110
drivers/regulator/da903x.c
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@ -101,21 +101,14 @@ static inline int check_range(struct da903x_regulator_info *info,
} }
/* DA9030/DA9034 common operations */ /* DA9030/DA9034 common operations */
static int da903x_set_ldo_voltage(struct regulator_dev *rdev, static int da903x_set_ldo_voltage_sel(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned *selector) unsigned selector)
{ {
struct da903x_regulator_info *info = rdev_get_drvdata(rdev); struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev); struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask; uint8_t val, mask;
if (check_range(info, min_uV, max_uV)) { val = selector << info->vol_shift;
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
return -EINVAL;
}
val = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
*selector = val;
val <<= info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
return da903x_update(da9034_dev, info->vol_reg, val, mask); return da903x_update(da9034_dev, info->vol_reg, val, mask);
@ -171,23 +164,15 @@ static int da903x_is_enabled(struct regulator_dev *rdev)
} }
/* DA9030 specific operations */ /* DA9030 specific operations */
static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev, static int da9030_set_ldo1_15_voltage_sel(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned selector)
unsigned *selector)
{ {
struct da903x_regulator_info *info = rdev_get_drvdata(rdev); struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da903x_dev = to_da903x_dev(rdev); struct device *da903x_dev = to_da903x_dev(rdev);
uint8_t val, mask; uint8_t val, mask;
int ret; int ret;
if (check_range(info, min_uV, max_uV)) { val = selector << info->vol_shift;
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
return -EINVAL;
}
val = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
*selector = val;
val <<= info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
val |= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */ val |= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
mask |= DA9030_LDO_UNLOCK_MASK; mask |= DA9030_LDO_UNLOCK_MASK;
@ -200,14 +185,24 @@ static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
return da903x_update(da903x_dev, info->vol_reg, val, mask); return da903x_update(da903x_dev, info->vol_reg, val, mask);
} }
static int da9030_set_ldo14_voltage(struct regulator_dev *rdev, static int da9030_set_ldo14_voltage_sel(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned selector)
unsigned *selector)
{ {
struct da903x_regulator_info *info = rdev_get_drvdata(rdev); struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da903x_dev = to_da903x_dev(rdev); struct device *da903x_dev = to_da903x_dev(rdev);
uint8_t val, mask; uint8_t val, mask;
int thresh;
val = selector << info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
return da903x_update(da903x_dev, info->vol_reg, val, mask);
}
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);
int thresh, sel;
if (check_range(info, min_uV, max_uV)) { if (check_range(info, min_uV, max_uV)) {
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
@ -216,17 +211,13 @@ static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
thresh = (info->max_uV + info->desc.min_uV) / 2; thresh = (info->max_uV + info->desc.min_uV) / 2;
if (min_uV < thresh) { if (min_uV < thresh) {
val = DIV_ROUND_UP(thresh - min_uV, info->desc.uV_step); sel = DIV_ROUND_UP(thresh - min_uV, info->desc.uV_step);
val |= 0x4; sel |= 0x4;
} else { } else {
val = DIV_ROUND_UP(min_uV - thresh, info->desc.uV_step); sel = DIV_ROUND_UP(min_uV - thresh, info->desc.uV_step);
} }
*selector = val; return sel;
val <<= info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
return da903x_update(da903x_dev, info->vol_reg, val, mask);
} }
static int da9030_get_ldo14_voltage_sel(struct regulator_dev *rdev) static int da9030_get_ldo14_voltage_sel(struct regulator_dev *rdev)
@ -266,22 +257,15 @@ static int da9030_list_ldo14_voltage(struct regulator_dev *rdev,
} }
/* DA9034 specific operations */ /* DA9034 specific operations */
static int da9034_set_dvc_voltage(struct regulator_dev *rdev, static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned *selector) unsigned selector)
{ {
struct da903x_regulator_info *info = rdev_get_drvdata(rdev); struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev); struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask; uint8_t val, mask;
int ret; int ret;
if (check_range(info, min_uV, max_uV)) { val = selector << info->vol_shift;
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
return -EINVAL;
}
val = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
*selector = val;
val <<= info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
ret = da903x_update(da9034_dev, info->vol_reg, val, mask); ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
@ -293,25 +277,34 @@ static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
return ret; return ret;
} }
static int da9034_set_ldo12_voltage(struct regulator_dev *rdev, static int da9034_set_ldo12_voltage_sel(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned *selector) unsigned selector)
{ {
struct da903x_regulator_info *info = rdev_get_drvdata(rdev); struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev); struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask; uint8_t val, mask;
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 da9034_map_ldo12_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
int sel;
if (check_range(info, min_uV, max_uV)) { if (check_range(info, min_uV, max_uV)) {
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
return -EINVAL; return -EINVAL;
} }
val = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step); sel = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
val = (val >= 20) ? val - 12 : ((val > 7) ? 8 : val); sel = (sel >= 20) ? sel - 12 : ((sel > 7) ? 8 : sel);
*selector = val;
val <<= info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
return da903x_update(da9034_dev, info->vol_reg, val, mask); return sel;
} }
static int da9034_get_ldo12_voltage_sel(struct regulator_dev *rdev) static int da9034_get_ldo12_voltage_sel(struct regulator_dev *rdev)
@ -349,9 +342,10 @@ static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
} }
static struct regulator_ops da903x_regulator_ldo_ops = { static struct regulator_ops da903x_regulator_ldo_ops = {
.set_voltage = da903x_set_ldo_voltage, .set_voltage_sel = da903x_set_ldo_voltage_sel,
.get_voltage_sel = da903x_get_voltage_sel, .get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear, .list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable, .enable = da903x_enable,
.disable = da903x_disable, .disable = da903x_disable,
.is_enabled = da903x_is_enabled, .is_enabled = da903x_is_enabled,
@ -359,9 +353,10 @@ static struct regulator_ops da903x_regulator_ldo_ops = {
/* NOTE: this is dedicated for the insane DA9030 LDO14 */ /* NOTE: this is dedicated for the insane DA9030 LDO14 */
static struct regulator_ops da9030_regulator_ldo14_ops = { static struct regulator_ops da9030_regulator_ldo14_ops = {
.set_voltage = da9030_set_ldo14_voltage, .set_voltage_sel = da9030_set_ldo14_voltage_sel,
.get_voltage_sel = da9030_get_ldo14_voltage_sel, .get_voltage_sel = da9030_get_ldo14_voltage_sel,
.list_voltage = da9030_list_ldo14_voltage, .list_voltage = da9030_list_ldo14_voltage,
.map_voltage = da9030_map_ldo14_voltage,
.enable = da903x_enable, .enable = da903x_enable,
.disable = da903x_disable, .disable = da903x_disable,
.is_enabled = da903x_is_enabled, .is_enabled = da903x_is_enabled,
@ -369,18 +364,20 @@ static struct regulator_ops da9030_regulator_ldo14_ops = {
/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */ /* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */
static struct regulator_ops da9030_regulator_ldo1_15_ops = { static struct regulator_ops da9030_regulator_ldo1_15_ops = {
.set_voltage = da9030_set_ldo1_15_voltage, .set_voltage_sel = da9030_set_ldo1_15_voltage_sel,
.get_voltage_sel = da903x_get_voltage_sel, .get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear, .list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable, .enable = da903x_enable,
.disable = da903x_disable, .disable = da903x_disable,
.is_enabled = da903x_is_enabled, .is_enabled = da903x_is_enabled,
}; };
static struct regulator_ops da9034_regulator_dvc_ops = { static struct regulator_ops da9034_regulator_dvc_ops = {
.set_voltage = da9034_set_dvc_voltage, .set_voltage_sel = da9034_set_dvc_voltage_sel,
.get_voltage_sel = da903x_get_voltage_sel, .get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear, .list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable, .enable = da903x_enable,
.disable = da903x_disable, .disable = da903x_disable,
.is_enabled = da903x_is_enabled, .is_enabled = da903x_is_enabled,
@ -388,9 +385,10 @@ static struct regulator_ops da9034_regulator_dvc_ops = {
/* NOTE: this is dedicated for the insane LDO12 */ /* NOTE: this is dedicated for the insane LDO12 */
static struct regulator_ops da9034_regulator_ldo12_ops = { static struct regulator_ops da9034_regulator_ldo12_ops = {
.set_voltage = da9034_set_ldo12_voltage, .set_voltage_sel = da9034_set_ldo12_voltage_sel,
.get_voltage_sel = da9034_get_ldo12_voltage_sel, .get_voltage_sel = da9034_get_ldo12_voltage_sel,
.list_voltage = da9034_list_ldo12_voltage, .list_voltage = da9034_list_ldo12_voltage,
.map_voltage = da9034_map_ldo12_voltage,
.enable = da903x_enable, .enable = da903x_enable,
.disable = da903x_disable, .disable = da903x_disable,
.is_enabled = da903x_is_enabled, .is_enabled = da903x_is_enabled,