There are regulators which are turned on by default (hw-design) and
shouldn't be disabled during the boot. Upstream uses the
regulator-boot-on dt-property for it:
8<--------------------------------------------------
regulator-boot-on:
description: bootloader/firmware enabled regulator
type: boolean
8<--------------------------------------------------
The difference between boot-on and always-on is the linux suspend
handling. Regulators marked as boot-on can be disabled during suspend.
This case isn't interesting for barebox so we can mark those as
always-on too.
Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
---
drivers/regulator/fixed.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index cb5d785817..78b8290ff2 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -86,7 +86,8 @@ static int regulator_fixed_probe(struct device_d *dev)
fix->rdesc.ops = &fixed_ops;
fix->rdev.desc = &fix->rdesc;
- if (of_find_property(dev->device_node, "regulator-always-on", NULL)) {
+ if (of_find_property(dev->device_node, "regulator-always-on", NULL) ||
+ of_find_property(dev->device_node, "regulator-boot-on", NULL)) {
fix->always_on = 1;
regulator_fixed_enable(&fix->rdev);
}
--
2.20.1
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