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power: regulator: denied disable on always-on regulator

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Don't disable regulator which are tagged as "regulator-always-on" in DT.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jack Mitchell <jack@embed.me.uk>
Tested-by: Jack Mitchell <jack@embed.me.uk>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Richard Röjfors <richard@puffinpack.se>
Tested-by: Richard Röjfors <richard@puffinpack.se>
Reviewed-by: Felix Brack <fb@ltec.ch>
Tested-by: Felix Brack <fb@ltec.ch>
This commit is contained in:
Patrick Delaunay 2018-11-15 13:45:31 +01:00 committed by Simon Glass
parent 7959882049
commit 4f86a724e8
1 changed files with 5 additions and 0 deletions
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5
drivers/power/regulator/regulator-uclass.c
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@ -106,10 +106,15 @@ int regulator_get_enable(struct udevice *dev)
int regulator_set_enable(struct udevice *dev, bool enable)
{
const struct dm_regulator_ops *ops = dev_get_driver_ops(dev);
struct dm_regulator_uclass_platdata *uc_pdata;
if (!ops || !ops->set_enable)
return -ENOSYS;
uc_pdata = dev_get_uclass_platdata(dev);
if (!enable && uc_pdata->always_on)
return -EACCES;
return ops->set_enable(dev, enable);
}