diff mbox series

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

Message ID 20190613212531.10452-2-jeffrey.l.hugo@gmail.com (mailing list archive)
State Superseded
Headers show
Series PM8005 and PMS405 regulator support | expand

Commit Message

Jeffrey Hugo June 13, 2019, 9:25 p.m. UTC 
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(-)

Comments

Bjorn Andersson June 13, 2019, 9:32 p.m. UTC | #1 
On Thu 13 Jun 14:25 PDT 2019, Jeffrey Hugo wrote:

> 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.
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

> 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
>
diff mbox series

Patch

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);
 }