diff options
Diffstat (limited to 'drivers/regulator/core.c')
-rw-r--r-- | drivers/regulator/core.c | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 1034e05..01d9675 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1904,77 +1904,6 @@ int regulator_disable_deferred(struct regulator *regulator, int ms) } EXPORT_SYMBOL_GPL(regulator_disable_deferred); -/** - * regulator_is_enabled_regmap - standard is_enabled() for regmap users - * - * @rdev: regulator to operate on - * - * Regulators that use regmap for their register I/O can set the - * enable_reg and enable_mask fields in their descriptor and then use - * this as their is_enabled operation, saving some code. - */ -int regulator_is_enabled_regmap(struct regulator_dev *rdev) -{ - unsigned int val; - int ret; - - ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); - if (ret != 0) - return ret; - - if (rdev->desc->enable_is_inverted) - return (val & rdev->desc->enable_mask) == 0; - else - return (val & rdev->desc->enable_mask) != 0; -} -EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap); - -/** - * regulator_enable_regmap - standard enable() for regmap users - * - * @rdev: regulator to operate on - * - * Regulators that use regmap for their register I/O can set the - * enable_reg and enable_mask fields in their descriptor and then use - * this as their enable() operation, saving some code. - */ -int regulator_enable_regmap(struct regulator_dev *rdev) -{ - unsigned int val; - - if (rdev->desc->enable_is_inverted) - val = 0; - else - val = rdev->desc->enable_mask; - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, val); -} -EXPORT_SYMBOL_GPL(regulator_enable_regmap); - -/** - * regulator_disable_regmap - standard disable() for regmap users - * - * @rdev: regulator to operate on - * - * Regulators that use regmap for their register I/O can set the - * enable_reg and enable_mask fields in their descriptor and then use - * this as their disable() operation, saving some code. - */ -int regulator_disable_regmap(struct regulator_dev *rdev) -{ - unsigned int val; - - if (rdev->desc->enable_is_inverted) - val = rdev->desc->enable_mask; - else - val = 0; - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, val); -} -EXPORT_SYMBOL_GPL(regulator_disable_regmap); - static int _regulator_is_enabled(struct regulator_dev *rdev) { /* A GPIO control always takes precedence */ @@ -2239,235 +2168,6 @@ int regulator_is_supported_voltage(struct regulator *regulator, } EXPORT_SYMBOL_GPL(regulator_is_supported_voltage); -/** - * regulator_get_voltage_sel_regmap - standard get_voltage_sel for regmap users - * - * @rdev: regulator to operate on - * - * Regulators that use regmap for their register I/O can set the - * vsel_reg and vsel_mask fields in their descriptor and then use this - * as their get_voltage_vsel operation, saving some code. - */ -int regulator_get_voltage_sel_regmap(struct regulator_dev *rdev) -{ - unsigned int val; - int ret; - - ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val); - if (ret != 0) - return ret; - - val &= rdev->desc->vsel_mask; - val >>= ffs(rdev->desc->vsel_mask) - 1; - - return val; -} -EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_regmap); - -/** - * regulator_set_voltage_sel_regmap - standard set_voltage_sel for regmap users - * - * @rdev: regulator to operate on - * @sel: Selector to set - * - * Regulators that use regmap for their register I/O can set the - * vsel_reg and vsel_mask fields in their descriptor and then use this - * as their set_voltage_vsel operation, saving some code. - */ -int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel) -{ - int ret; - - sel <<= ffs(rdev->desc->vsel_mask) - 1; - - ret = regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg, - rdev->desc->vsel_mask, sel); - if (ret) - return ret; - - if (rdev->desc->apply_bit) - ret = regmap_update_bits(rdev->regmap, rdev->desc->apply_reg, - rdev->desc->apply_bit, - rdev->desc->apply_bit); - return ret; -} -EXPORT_SYMBOL_GPL(regulator_set_voltage_sel_regmap); - -/** - * regulator_map_voltage_iterate - map_voltage() based on list_voltage() - * - * @rdev: Regulator to operate on - * @min_uV: Lower bound for voltage - * @max_uV: Upper bound for voltage - * - * Drivers implementing set_voltage_sel() and list_voltage() can use - * this as their map_voltage() operation. It will find a suitable - * voltage by calling list_voltage() until it gets something in bounds - * for the requested voltages. - */ -int regulator_map_voltage_iterate(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int best_val = INT_MAX; - int selector = 0; - int i, ret; - - /* Find the smallest voltage that falls within the specified - * range. - */ - for (i = 0; i < rdev->desc->n_voltages; i++) { - ret = rdev->desc->ops->list_voltage(rdev, i); - if (ret < 0) - continue; - - if (ret < best_val && ret >= min_uV && ret <= max_uV) { - best_val = ret; - selector = i; - } - } - - if (best_val != INT_MAX) - return selector; - else - return -EINVAL; -} -EXPORT_SYMBOL_GPL(regulator_map_voltage_iterate); - -/** - * regulator_map_voltage_ascend - map_voltage() for ascendant voltage list - * - * @rdev: Regulator to operate on - * @min_uV: Lower bound for voltage - * @max_uV: Upper bound for voltage - * - * Drivers that have ascendant voltage list can use this as their - * map_voltage() operation. - */ -int regulator_map_voltage_ascend(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int i, ret; - - for (i = 0; i < rdev->desc->n_voltages; i++) { - ret = rdev->desc->ops->list_voltage(rdev, i); - if (ret < 0) - continue; - - if (ret > max_uV) - break; - - if (ret >= min_uV && ret <= max_uV) - return i; - } - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(regulator_map_voltage_ascend); - -/** - * regulator_map_voltage_linear - map_voltage() for simple linear mappings - * - * @rdev: Regulator to operate on - * @min_uV: Lower bound for voltage - * @max_uV: Upper bound for voltage - * - * Drivers providing min_uV and uV_step in their regulator_desc can - * use this as their map_voltage() operation. - */ -int regulator_map_voltage_linear(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int ret, voltage; - - /* Allow uV_step to be 0 for fixed voltage */ - if (rdev->desc->n_voltages == 1 && rdev->desc->uV_step == 0) { - if (min_uV <= rdev->desc->min_uV && rdev->desc->min_uV <= max_uV) - return 0; - else - return -EINVAL; - } - - if (!rdev->desc->uV_step) { - BUG_ON(!rdev->desc->uV_step); - return -EINVAL; - } - - if (min_uV < rdev->desc->min_uV) - min_uV = rdev->desc->min_uV; - - ret = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step); - if (ret < 0) - return ret; - - ret += rdev->desc->linear_min_sel; - - /* Map back into a voltage to verify we're still in bounds */ - voltage = rdev->desc->ops->list_voltage(rdev, ret); - if (voltage < min_uV || voltage > max_uV) - return -EINVAL; - - return ret; -} -EXPORT_SYMBOL_GPL(regulator_map_voltage_linear); - -/** - * regulator_map_voltage_linear - map_voltage() for multiple linear ranges - * - * @rdev: Regulator to operate on - * @min_uV: Lower bound for voltage - * @max_uV: Upper bound for voltage - * - * Drivers providing linear_ranges in their descriptor can use this as - * their map_voltage() callback. - */ -int regulator_map_voltage_linear_range(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - const struct regulator_linear_range *range; - int ret = -EINVAL; - int voltage, i; - - if (!rdev->desc->n_linear_ranges) { - BUG_ON(!rdev->desc->n_linear_ranges); - return -EINVAL; - } - - for (i = 0; i < rdev->desc->n_linear_ranges; i++) { - range = &rdev->desc->linear_ranges[i]; - - if (!(min_uV <= range->max_uV && max_uV >= range->min_uV)) - continue; - - if (min_uV <= range->min_uV) - min_uV = range->min_uV; - - /* range->uV_step == 0 means fixed voltage range */ - if (range->uV_step == 0) { - ret = 0; - } else { - ret = DIV_ROUND_UP(min_uV - range->min_uV, - range->uV_step); - if (ret < 0) - return ret; - } - - ret += range->min_sel; - - break; - } - - if (i == rdev->desc->n_linear_ranges) - return -EINVAL; - - /* Map back into a voltage to verify we're still in bounds */ - voltage = rdev->desc->ops->list_voltage(rdev, ret); - if (voltage < min_uV || voltage > max_uV) - return -EINVAL; - - return ret; -} -EXPORT_SYMBOL_GPL(regulator_map_voltage_linear_range); - static int _regulator_do_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { @@ -3071,47 +2771,6 @@ out: EXPORT_SYMBOL_GPL(regulator_set_optimum_mode); /** - * regulator_set_bypass_regmap - Default set_bypass() using regmap - * - * @rdev: device to operate on. - * @enable: state to set. - */ -int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable) -{ - unsigned int val; - - if (enable) - val = rdev->desc->bypass_mask; - else - val = 0; - - return regmap_update_bits(rdev->regmap, rdev->desc->bypass_reg, - rdev->desc->bypass_mask, val); -} -EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap); - -/** - * regulator_get_bypass_regmap - Default get_bypass() using regmap - * - * @rdev: device to operate on. - * @enable: current state. - */ -int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable) -{ - unsigned int val; - int ret; - - ret = regmap_read(rdev->regmap, rdev->desc->bypass_reg, &val); - if (ret != 0) - return ret; - - *enable = val & rdev->desc->bypass_mask; - - return 0; -} -EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap); - -/** * regulator_allow_bypass - allow the regulator to go into bypass mode * * @regulator: Regulator to configure |