diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/core.c | 23 | ||||
| -rw-r--r-- | drivers/regulator/of_regulator.c | 6 |
2 files changed, 24 insertions, 5 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 6ffca9b32388..b615ae6606db 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -967,6 +967,14 @@ static int set_machine_constraints(struct regulator_dev *rdev, } } + if (rdev->constraints->ramp_delay && ops->set_ramp_delay) { + ret = ops->set_ramp_delay(rdev, rdev->constraints->ramp_delay); + if (ret < 0) { + rdev_err(rdev, "failed to set ramp_delay\n"); + goto out; + } + } + print_constraints(rdev); return 0; out: @@ -2296,10 +2304,17 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int old_selector, unsigned int new_selector) { - if (rdev->desc->ramp_delay && rdev->desc->uV_step) - return DIV_ROUND_UP(rdev->desc->uV_step * - abs(new_selector - old_selector), - rdev->desc->ramp_delay * 1000); + if (rdev->desc->uV_step) { + if (rdev->constraints->ramp_delay) + return DIV_ROUND_UP(rdev->desc->uV_step * + abs(new_selector - old_selector), + rdev->constraints->ramp_delay * 1000); + if (rdev->desc->ramp_delay) + return DIV_ROUND_UP(rdev->desc->uV_step * + abs(new_selector - old_selector), + rdev->desc->ramp_delay * 1000); + rdev_warn(rdev, "ramp_delay not set\n"); + } return 0; } diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 56593b75168a..e2a731079066 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -20,7 +20,7 @@ static void of_get_regulation_constraints(struct device_node *np, struct regulator_init_data **init_data) { const __be32 *min_uV, *max_uV, *uV_offset; - const __be32 *min_uA, *max_uA; + const __be32 *min_uA, *max_uA, *ramp_delay; struct regulation_constraints *constraints = &(*init_data)->constraints; constraints->name = of_get_property(np, "regulator-name", NULL); @@ -60,6 +60,10 @@ static void of_get_regulation_constraints(struct device_node *np, constraints->always_on = true; else /* status change should be possible if not always on. */ constraints->valid_ops_mask |= REGULATOR_CHANGE_STATUS; + + ramp_delay = of_get_property(np, "regulator-ramp-delay", NULL); + if (ramp_delay) + constraints->min_uV = be32_to_cpu(*ramp_delay); } /** |