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Date: Mon, 5 Jun 2017 16:06:12 +0530 From: Tirupathi Reddy T <tirupath@...eaurora.org> To: broonie@...nel.org, lgirdwood@...il.com Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org Subject: Re: [PATCH V1] regulator: core: Fix voltage change propagations to supply regulators Mark, Could you please take a look and provide any feedback. Thanks Tirupathi Reddy On 5/25/2017 3:33 PM, Tirupathi Reddy wrote: > Some regulators support get_voltage and some support get_voltage_sel > operations. Do voltage change propagation only when the current > regulator has a minimum dropout voltage specified or if the current > regulator lacks both get_voltage and get_voltage_sel operations. > > Signed-off-by: Tirupathi Reddy <tirupath@...eaurora.org> > --- > drivers/regulator/core.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c > index c0d9ae8..9fecbd4 100644 > --- a/drivers/regulator/core.c > +++ b/drivers/regulator/core.c > @@ -2938,7 +2938,8 @@ static int regulator_set_voltage_unlocked(struct regulator *regulator, > if (rdev->supply && > regulator_ops_is_valid(rdev->supply->rdev, > REGULATOR_CHANGE_VOLTAGE) && > - (rdev->desc->min_dropout_uV || !rdev->desc->ops->get_voltage)) { > + (rdev->desc->min_dropout_uV || !(rdev->desc->ops->get_voltage || > + rdev->desc->ops->get_voltage_sel))) { > int current_supply_uV; > int selector; >
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