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| author | Laxman Dewangan <ldewangan@nvidia.com> | 2013-09-18 16:48:02 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-09-18 20:13:02 +0400 |
| commit | 00c877c69ba315d6c565a4df51c71b11e82cdeb8 (patch) | |
| tree | 8b5dcf0d475476da3ee8c2cb310e9bce34e6d30a /Documentation/devicetree/bindings | |
| parent | 272b98c6455f00884f0350f775c5342358ebb73f (diff) | |
| download | linux-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 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/regulator.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 2bd8f0978765..e2c7f1e7251a 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -14,6 +14,11 @@ Optional properties: - regulator-ramp-delay: ramp delay for regulator(in uV/uS) For hardwares which support disabling ramp rate, it should be explicitly intialised to zero (regulator-ramp-delay = <0>) for disabling ramp delay. +- regulator-enable-ramp-delay: The time taken, in microseconds, for the supply + rail to reach the target voltage, plus/minus whatever tolerance the board + design requires. This property describes the total system ramp time + required due to the combination of internal ramping of the regulator itself, + and board design issues such as trace capacitance and load on the supply. Deprecated properties: - regulator-compatible: If a regulator chip contains multiple |