[PATCH v4 2/7] regulator: qcom_spmi: Refactor get_mode/set_mode

Jeffrey Hugo
2019-06-13T21:25:49Z

spmi_regulator_common_get_mode and spmi_regulator_common_set_mode use
multi-level ifs which mirror a switch statement. Refactor to use a switch
statement to make the code flow more clear.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
---
drivers/regulator/qcom_spmi-regulator.c | 26 +++++++++++++++++--------
1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c
index 42c429d50743..1b3383a24c9d 100644
--- a/drivers/regulator/qcom_spmi-regulator.c
+++ b/drivers/regulator/qcom_spmi-regulator.c
@@ -911,13 +911,16 @@ static unsigned int spmi_regulator_common_get_mode(struct regulator_dev *rdev)

spmi_vreg_read(vreg, SPMI_COMMON_REG_MODE, &reg, 1);

- if (reg & SPMI_COMMON_MODE_HPM_MASK)
- return REGULATOR_MODE_NORMAL;
+ reg &= SPMI_COMMON_MODE_HPM_MASK | SPMI_COMMON_MODE_AUTO_MASK;

- if (reg & SPMI_COMMON_MODE_AUTO_MASK)
+ switch (reg) {
+ case SPMI_COMMON_MODE_HPM_MASK:
+ return REGULATOR_MODE_NORMAL;
+ case SPMI_COMMON_MODE_AUTO_MASK:
return REGULATOR_MODE_FAST;
-
- return REGULATOR_MODE_IDLE;
+ default:
+ return REGULATOR_MODE_IDLE;
+ }
}

static int
@@ -925,12 +928,19 @@ spmi_regulator_common_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct spmi_regulator *vreg = rdev_get_drvdata(rdev);
u8 mask = SPMI_COMMON_MODE_HPM_MASK | SPMI_COMMON_MODE_AUTO_MASK;
- u8 val = 0;
+ u8 val;

- if (mode == REGULATOR_MODE_NORMAL)
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
val = SPMI_COMMON_MODE_HPM_MASK;
- else if (mode == REGULATOR_MODE_FAST)
+ break;
+ case REGULATOR_MODE_FAST:
val = SPMI_COMMON_MODE_AUTO_MASK;
+ break;
+ default:
+ val = 0;
+ break;
+ }

return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_MODE, val, mask);
}
--
2.17.1