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| author | Laxman Dewangan <ldewangan@nvidia.com> | 2015-04-23 16:10:22 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-04-27 18:59:48 +0100 |
| commit | dcd9ec6ae3667d3bb92cbb9b59c7f4864316448d (patch) | |
| tree | 7d193b04fc4cf186390880bcd12a50e660575b34 /drivers/regulator/max8973-regulator.c | |
| parent | b787f68c36d49bb1d9236f403813641efa74a031 (diff) | |
| download | lwn-dcd9ec6ae3667d3bb92cbb9b59c7f4864316448d.tar.gz lwn-dcd9ec6ae3667d3bb92cbb9b59c7f4864316448d.zip | |
regulator: max8973: set startup time for rail based on BIAS control
In MAX8973, BIAS enable control bit is used for changing the startup time
for voltage output. The startup delay is 240us (typ) when the BIASEN
bit is set to 0. The startup delay is reduced to 20us (typ) when the
BIASEN bit is set to 1.
Pass the enable_time through regulator descriptor based on this flag.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator/max8973-regulator.c')
| -rw-r--r-- | drivers/regulator/max8973-regulator.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c index c3d55c2db593..be9a463d7354 100644 --- a/drivers/regulator/max8973-regulator.c +++ b/drivers/regulator/max8973-regulator.c @@ -266,8 +266,12 @@ static int max8973_init_dcdc(struct max8973_chip *max, if (pdata->control_flags & MAX8973_CONTROL_OUTPUT_ACTIVE_DISCH_ENABLE) control1 |= MAX8973_AD_ENABLE; - if (pdata->control_flags & MAX8973_CONTROL_BIAS_ENABLE) + if (pdata->control_flags & MAX8973_CONTROL_BIAS_ENABLE) { control1 |= MAX8973_BIAS_ENABLE; + max->desc.enable_time = 20; + } else { + max->desc.enable_time = 240; + } if (pdata->control_flags & MAX8973_CONTROL_FREQ_SHIFT_9PER_ENABLE) control1 |= MAX8973_FREQSHIFT_9PER; |