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author | Steffen Trumtrar <s.trumtrar@pengutronix.de> | 2014-06-30 09:51:56 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-07-11 09:56:38 +0200 |
commit | 2eb002699c7fe1650278fc28ad56bc4876817afd (patch) | |
tree | 8c3a15e383b003219d5af5a660311d9d00ccc582 /drivers/regulator | |
parent | 6acc6bc6275a3a7d648a04cede77618f7597ee5b (diff) | |
download | barebox-2eb002699c7fe1650278fc28ad56bc4876817afd.tar.gz barebox-2eb002699c7fe1650278fc28ad56bc4876817afd.tar.xz |
regulator: fixed: add always-on property
Support the "regulator-always-on" property for fixed regulators.
The regulator gets enabled on probe and subsequent disable calls are
ignored.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/regulator')
-rw-r--r-- | drivers/regulator/fixed.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c index 7e649199bf..2515d3e70d 100644 --- a/drivers/regulator/fixed.c +++ b/drivers/regulator/fixed.c @@ -27,6 +27,7 @@ struct regulator_fixed { int gpio; int active_low; + int always_on; struct regulator_dev rdev; }; @@ -44,6 +45,9 @@ static int regulator_fixed_disable(struct regulator_dev *rdev) { struct regulator_fixed *fix = container_of(rdev, struct regulator_fixed, rdev); + if (fix->always_on) + return 0; + if (!gpio_is_valid(fix->gpio)) return 0; @@ -79,6 +83,11 @@ static int regulator_fixed_probe(struct device_d *dev) fix->rdev.ops = &fixed_ops; + if (of_find_property(dev->device_node, "regulator-always-on", NULL)) { + fix->always_on = 1; + regulator_fixed_enable(&fix->rdev); + } + ret = of_regulator_register(&fix->rdev, dev->device_node); if (ret) return ret; |