From: Dmitry Osipenko Date: Fri, 22 Jan 2021 17:43:11 +0000 (+0300) Subject: regulator: Make regulator_sync_voltage() usable by coupled regulators X-Git-Tag: v5.12-rc1~117^2^2~10 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=24be0c715617ed9bfc63fa9483f8bda1214b9763;p=thirdparty%2Fkernel%2Flinux.git 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 # Ouya T30 Tested-by: Dmitry Osipenko # A500 T20 and Nexus7 T30 Tested-by: Nicolas Chauvet # PAZ00 T20 Tested-by: Matt Merhar # Ouya T30 Signed-off-by: Dmitry Osipenko Link: https://lore.kernel.org/r/20210122174311.28230-1-digetx@gmail.com Signed-off-by: Mark Brown --- diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index fee924158091b..1a4745ec0305a 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -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);