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regulator: Make regulator_sync_voltage() usable by coupled regulators 

Make regulator_sync_voltage() to re-balance voltage state of a coupled
regulators instead of changing the voltage directly.

Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Dmitry Osipenko <digetx@gmail.com> # A500 T20 and Nexus7 T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210122174311.28230-1-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dmitry Osipenko 2021-01-22 20:43:11 +03:00 committed by Mark Brown
parent a5872bd339
commit 24be0c7156
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GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 1 deletions
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6
drivers/regulator/core.c
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@ -4131,7 +4131,11 @@ int regulator_sync_voltage(struct regulator *regulator)
if (ret < 0)
goto out;
ret = _regulator_do_set_voltage(rdev, min_uV, max_uV);
/* balance only, if regulator is coupled */
if (rdev->coupling_desc.n_coupled > 1)
ret = regulator_balance_voltage(rdev, PM_SUSPEND_ON);
else
ret = _regulator_do_set_voltage(rdev, min_uV, max_uV);
out:
regulator_unlock(rdev);