diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/core.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index cc8b337b9119..7bb9c003db39 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -25,6 +25,9 @@ #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> +#define CREATE_TRACE_POINTS +#include <trace/events/regulator.h> + #include "dummy.h" #define REGULATOR_VERSION "0.5" @@ -1299,6 +1302,8 @@ static int _regulator_enable(struct regulator_dev *rdev) delay = 0; } + trace_regulator_enable(rdev_get_name(rdev)); + /* Allow the regulator to ramp; it would be useful * to extend this for bulk operations so that the * regulators can ramp together. */ @@ -1306,11 +1311,15 @@ static int _regulator_enable(struct regulator_dev *rdev) if (ret < 0) return ret; + trace_regulator_enable_delay(rdev_get_name(rdev)); + if (delay >= 1000) mdelay(delay / 1000); else if (delay) udelay(delay); + trace_regulator_enable_complete(rdev_get_name(rdev)); + } else if (ret < 0) { printk(KERN_ERR "%s: is_enabled() failed for %s: %d\n", __func__, rdev_get_name(rdev), ret); @@ -1364,6 +1373,8 @@ static int _regulator_disable(struct regulator_dev *rdev) /* we are last user */ if (_regulator_can_change_status(rdev) && rdev->desc->ops->disable) { + trace_regulator_disable(rdev_get_name(rdev)); + ret = rdev->desc->ops->disable(rdev); if (ret < 0) { printk(KERN_ERR "%s: failed to disable %s\n", @@ -1371,6 +1382,8 @@ static int _regulator_disable(struct regulator_dev *rdev) return ret; } + trace_regulator_disable_complete(rdev_get_name(rdev)); + _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE, NULL); } @@ -1613,8 +1626,13 @@ int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV) goto out; regulator->min_uV = min_uV; regulator->max_uV = max_uV; + + trace_regulator_set_voltage(rdev_get_name(rdev), min_uV, max_uV); + ret = rdev->desc->ops->set_voltage(rdev, min_uV, max_uV); + trace_regulator_set_voltage_complete(rdev_get_name(rdev), -1); + out: _notifier_call_chain(rdev, REGULATOR_EVENT_VOLTAGE_CHANGE, NULL); mutex_unlock(&rdev->mutex); |