diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-02-26 19:24:19 +0000 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2009-03-31 09:56:24 +0100 |
| commit | a308466c24b4f42bab6945026e938874d22cde50 (patch) | |
| tree | 7eea151552bacfa580099cb6f9a32a9140d65c89 /drivers/regulator | |
| parent | fe203ddfa5451a13589b1c7da9edab80b7fc06d1 (diff) | |
| download | kernel-common-a308466c24b4f42bab6945026e938874d22cde50.tar.gz kernel-common-a308466c24b4f42bab6945026e938874d22cde50.tar.bz2 kernel-common-a308466c24b4f42bab6945026e938874d22cde50.zip | |
regulator: Allow regulators to set the initial operating mode
This is useful when wishing to run in a fixed operating mode that isn't
the default.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/core.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index d55a25a6fab2..75abcd85e51b 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -724,6 +724,23 @@ static int set_machine_constraints(struct regulator_dev *rdev, } } + if (constraints->initial_mode) { + if (!ops->set_mode) { + printk(KERN_ERR "%s: no set_mode operation for %s\n", + __func__, name); + ret = -EINVAL; + goto out; + } + + ret = ops->set_mode(rdev, constraints->initial_mode); + if (ret < 0) { + printk(KERN_ERR + "%s: failed to set initial mode for %s: %d\n", + __func__, name, ret); + goto out; + } + } + /* if always_on is set then turn the regulator on if it's not * already on. */ if (constraints->always_on && ops->enable && |