shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 12:17:12 +09:00
Code Issues Packages Projects Releases Wiki Activity

UPSTREAM: regulator: helpers: Ensure bypass register field matches ON value

Browse Source 
When checking bypass state for a regulator, we check to see if any bits
in the bypass mask are set. For most cases this is fine because there is
typically, only a single bit used to determine if the regulator is in
bypass. However, for some regulators, such as LDO6 on AS3722, the bypass
state is indicate by a value rather than a single bit. Therefore, when
checking the bypass state, check that the bypass field matches the ON
value.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit dd1a571dae)

Change-Id: Ic9f9ee919969cc744be7e7c94729ee7ab9e0e7a1
Signed-off-by: David Wu <david.wu@rock-chips.com>
This commit is contained in:
Jon Hunter
2016-04-21 17:12:01 +01:00
committed by Huang, Tao
parent e322305bba
commit 14b8d1e030
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/regulator/helpers.c
View File

@@ -460,7 +460,7 @@ int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable)
if (ret != 0)
return ret;
*enable = val & rdev->desc->bypass_mask;
*enable = (val & rdev->desc->bypass_mask) == rdev->desc->bypass_val_on;
return 0;
}