iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

regulator: core: Add support for disabling ramp delay

Browse Source 
Some hardwares support disabling ramp delay, so adding ramp_disable flag to
constraints. It will be used to figure out whether ramp_delay in constraints
is explicitly set to zero or its unintialized (zero by default).
And we don't need to call set_voltage_time_sel() for regulators for whom ramp
delay is disabled in constraints.

Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Yadwinder Singh Brar
2013-06-29 18:21:15 +05:30
committed by Mark Brown
parent ad81f0545e
commit 1653ccf4c5
4 changed files with 16 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/regulator/core.c
View File

@ -984,7 +984,8 @@ static int set_machine_constraints(struct regulator_dev *rdev,
}
}
if (rdev->constraints->ramp_delay && ops->set_ramp_delay) {
if ((rdev->constraints->ramp_delay || rdev->constraints->ramp_disable)
&& 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");
@ -2438,7 +2439,8 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
}
/* Call set_voltage_time_sel if successfully obtained old_selector */
if (ret == 0 && _regulator_is_enabled(rdev) && old_selector >= 0 &&
if (ret == 0 && !rdev->constraints->ramp_disable &&
_regulator_is_enabled(rdev) && old_selector >= 0 &&
old_selector != selector && rdev->desc->ops->set_voltage_time_sel) {
delay = rdev->desc->ops->set_voltage_time_sel(rdev,