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authorPatrick Delaunay <patrick.delaunay@st.com>2018-11-15 13:45:31 +0100
committerSimon Glass <sjg@chromium.org>2018-12-05 06:06:44 -0700
commit4f86a724e82c0b74d9ffb7b65f8ae4b011dd0b03 (patch)
treeaddbdb07007e58578bc2438884faaabfd4672fe9 /drivers/power/regulator
parent7959882049a9b389c131eff9a128437ee8ebe08e (diff)
downloadu-boot-4f86a724e82c0b74d9ffb7b65f8ae4b011dd0b03.tar.gz
power: regulator: denied disable on always-on regulator
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>
Diffstat (limited to 'drivers/power/regulator')
-rw-r--r--drivers/power/regulator/regulator-uclass.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
index 4da8e43259..4511625ff2 100644
--- a/drivers/power/regulator/regulator-uclass.c
+++ b/drivers/power/regulator/regulator-uclass.c
@@ -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);
}