From 24be0c715617ed9bfc63fa9483f8bda1214b9763 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Fri, 22 Jan 2021 20:43:11 +0300 Subject: [PATCH] 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 --- drivers/regulator/core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index fee9241..1a4745e 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); -- 2.7.4