tree 7d89f4a2a5f2ac4200cc4e62a02652a0189fe59b
parent 94b3df54ad6d451a0158681758a0996947b5134d
author Matthias Kaehlcke <mka@chromium.org> 1490658852 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1521706664 +0100

regulator: core: Limit propagation of parent voltage count and list


[ Upstream commit fd086045559d90cd7854818b4c60a7119eda6231 ]

Commit 26988efe11b1 ("regulator: core: Allow to get voltage count and
list from parent") introduces the propagation of the parent voltage
count and list for regulators that don't provide this information
themselves. The goal is to support simple switch regulators, however as
a side effect normal continuous regulators can leak details of their
supplies and provide consumers with inconsistent information.

Limit the propagation of the voltage count and list to switch
regulators.

Fixes: 26988efe11b1 ("regulator: core: Allow to get voltage count and
  list from parent")
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>