This is a note to let you know that I've just added the patch titled
regulator: core: Let boot-on regulators be powered off
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
regulator-core-let-boot-on-regulators-be-powered-off.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b Mon Sep 17 00:00:00 2001
From: Pascal Paillet <p.paillet@xxxxxx>
Date: Wed, 13 Nov 2019 11:27:37 +0100
Subject: regulator: core: Let boot-on regulators be powered off
From: Pascal Paillet <p.paillet@xxxxxx>
commit 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b upstream.
Boot-on regulators are always kept on because their use_count value
is now incremented at boot time and never cleaned.
Only increment count value for alway-on regulators.
regulator_late_cleanup() is now able to power off boot-on regulators
when unused.
Fixes: 05f224ca6693 ("regulator: core: Clean enabling always-on regulators + their supplies")
Signed-off-by: Pascal Paillet <p.paillet@xxxxxx>
Link: https://lore.kernel.org/r/20191113102737.27831-1-p.paillet@xxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Acked-by: Andre Kalb <andre.kalb@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/regulator/core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1211,7 +1211,9 @@ static int set_machine_constraints(struc
rdev_err(rdev, "failed to enable\n");
return ret;
}
- rdev->use_count++;
+
+ if (rdev->constraints->always_on)
+ rdev->use_count++;
}
print_constraints(rdev);
Patches currently in stable-queue which might be from p.paillet@xxxxxx are
queue-4.19/regulator-core-let-boot-on-regulators-be-powered-off.patch
