diff options
| author | Yadwinder Singh Brar <yadi.brar01@gmail.com> | 2012-06-11 17:41:08 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-06-17 21:08:52 +0100 |
| commit | 6f0b2c696ca340cc2da381fe693fda3f8fdb2149 (patch) | |
| tree | 71814a0078daec92d97fd3a5651d083cfb424132 /Documentation/devicetree/bindings/regulator/regulator.txt | |
| parent | b5fb77e0188dc85630b395eb0faddc4987be6ddb (diff) | |
regulator: Add ramp_delay configuration to constraints
For some hardwares ramp_delay for BUCKs is a configurable parameter which can
be configured through DT or board file.This patch adds ramp_delay to regulator
constraints and allow user to configure it for regulators which supports this
feature, through DT or board file. It will provide two ways of setting the
ramp_delay for a regulator:
First, by setting it as constraints in board file(for configurable
regulators) and set_machine_constraints() will take care of setting it on
hardware by calling(the provided) .set_ramp_delay() operation(callback).
Second, by setting it as data in regulator_desc(as fixed/default
ramp_delay rate) for a regulator in driver.
regulator_set_voltage_time_sel() will give preference to
constraints->ramp_delay while reading ramp_delay rate for regulator. Similarly
users should also take care accordingly while refering ramp_delay rate(in case
of implementing their private .set_voltage_time_sel() callbacks for different
regulators).
[Rewrote subject for 80 columns -- broonie]
Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'Documentation/devicetree/bindings/regulator/regulator.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/regulator.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index 5b7a408acdaa..d0a7b1296a36 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -10,6 +10,7 @@ Optional properties: - regulator-always-on: boolean, regulator should never be disabled - regulator-boot-on: bootloader/firmware enabled regulator - <name>-supply: phandle to the parent supply/regulator node +- regulator-ramp-delay: ramp delay for regulator(in mV/uS) Example: |