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authorLaxman Dewangan <ldewangan@nvidia.com>2013-09-18 16:48:02 +0400
committerMark Brown <broonie@linaro.org>2013-09-18 20:13:02 +0400
commit00c877c69ba315d6c565a4df51c71b11e82cdeb8 (patch)
tree8b5dcf0d475476da3ee8c2cb310e9bce34e6d30a /include/linux/regulator
parent272b98c6455f00884f0350f775c5342358ebb73f (diff)
downloadlinux-00c877c69ba315d6c565a4df51c71b11e82cdeb8.tar.xz
regulator: core: add support for configuring turn-on time through constraints
The turn-on time of the regulator depends on the regulator device's electrical characteristics. Sometimes regulator turn-on time also depends on the capacitive load on the given platform and it can be more than the datasheet value. The driver provides the enable-time as per datasheet. Add support for configure the enable ramp time through regulator constraints so that regulator core can take this value for enable time for that regulator. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'include/linux/regulator')
-rw-r--r--include/linux/regulator/machine.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index 999b20ce06cf..8108751acb86 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -95,6 +95,7 @@ struct regulator_state {
* @initial_state: Suspend state to set by default.
* @initial_mode: Mode to set at startup.
* @ramp_delay: Time to settle down after voltage change (unit: uV/us)
+ * @enable_time: Turn-on time of the rails (unit: microseconds)
*/
struct regulation_constraints {
@@ -129,6 +130,7 @@ struct regulation_constraints {
unsigned int initial_mode;
unsigned int ramp_delay;
+ unsigned int enable_time;
/* constraint flags */
unsigned always_on:1; /* regulator never off when system is on */