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Code Issues Releases Wiki Activity

regulator: da9121: Prevent current limit change when enabled

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Prevent changing current limit when enabled as a precaution against
possibile instability due to tight integration with switching cycle

Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
Link: https://lore.kernel.org/r/52ee682476004a1736c1e0293358987319c1c415.1638223185.git.Adam.Ward.opensource@diasemi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Adam Ward 2021-11-29 22:10:12 +00:00 committed by Mark Brown
parent 59eadd2af3
commit 24f0853228
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GPG key ID: 24D68B725D5487D0
1 changed files with 5 additions and 0 deletions
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5
drivers/regulator/da9121-regulator.c
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@ -253,6 +253,11 @@ static int da9121_set_current_limit(struct regulator_dev *rdev,
goto error;
}
if (rdev->desc->ops->is_enabled(rdev)) {
ret = -EBUSY;
goto error;
}
ret = da9121_ceiling_selector(rdev, min_ua, max_ua, &sel);
if (ret < 0)
goto error;