[PATCH v3 12/18] staging: hikey9xx: hi6421v600-regulator: fix get_optimum_mode

Mauro Carvalho Chehab
2021-01-19T10:49:46Z

During the driver refactor, a regression broke the logic inside
hi6421_spmi_regulator_get_optimum_mode(). Basically, if a LDO
has eco_uA == 0, it doesn't support economic mode. So, it should
return REGULATOR_MODE_NORMAL.

If economic mode is supported, it can return either
REGULATOR_MODE_IDLE or REGULATOR_MODE_NORMAL, depending on the
load current.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
drivers/staging/hikey9xx/hi6421v600-regulator.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/hikey9xx/hi6421v600-regulator.c b/drivers/staging/hikey9xx/hi6421v600-regulator.c
index 72dd779d85e6..5fe77b490166 100644
--- a/drivers/staging/hikey9xx/hi6421v600-regulator.c
+++ b/drivers/staging/hikey9xx/hi6421v600-regulator.c
@@ -206,7 +206,7 @@ hi6421_spmi_regulator_get_optimum_mode(struct regulator_dev *rdev,
{
struct hi6421_spmi_reg_info *sreg = rdev_get_drvdata(rdev);

- if (load_uA || ((unsigned int)load_uA > sreg->eco_uA))
+ if (!sreg->eco_uA || ((unsigned int)load_uA > sreg->eco_uA))
return REGULATOR_MODE_NORMAL;

return REGULATOR_MODE_IDLE;
--
2.29.2