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regulator: core: Add support for disabling ramp delay

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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
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include/linux/regulator/machine.h
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@@ -134,6 +134,7 @@ struct regulation_constraints {
unsigned always_on:1; /* regulator never off when system is on */
unsigned boot_on:1; /* bootloader/firmware enabled regulator */
unsigned apply_uV:1; /* apply uV constraint if min == max */
unsigned ramp_disable:1; /* disable ramp delay */
};
/**