From: Patrick Delaunay patrick.delaunay@st.com
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 ---
drivers/power/regulator/regulator-uclass.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c index 4da8e43259fc..4511625ff251 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); }