linux-kernel - RE: [PATCH 2/2] regulator: da9063: Simplify da9063_buck_set_mode for BUCK_MODE

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Date:   Thu, 26 Sep 2019 09:23:16 +0000
From:   Adam Thomson <Adam.Thomson.Opensource@...semi.com>
To:     Axel Lin <axel.lin@...ics.com>, Mark Brown <broonie@...nel.org>
CC:     Adam Thomson <Adam.Thomson.Opensource@...semi.com>,
        Support Opensource <Support.Opensource@...semi.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 2/2] regulator: da9063: Simplify da9063_buck_set_mode for
 BUCK_MODE_MANUAL case

On 26 September 2019 06:51, Axel Lin wrote:

> The sleep flag bit decides the mode for BUCK_MODE_MANUAL case, simplify
> the logic as the result is the same.
> 
> Signed-off-by: Axel Lin <axel.lin@...ics.com>

Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@...semi.com>

> ---
>  drivers/regulator/da9063-regulator.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-
> regulator.c
> index 28b1b20f45bd..2aceb3b7afc2 100644
> --- a/drivers/regulator/da9063-regulator.c
> +++ b/drivers/regulator/da9063-regulator.c
> @@ -225,7 +225,7 @@ static unsigned da9063_buck_get_mode(struct
> regulator_dev *rdev)
>  {
>  	struct da9063_regulator *regl = rdev_get_drvdata(rdev);
>  	struct regmap_field *field;
> -	unsigned int val, mode = 0;
> +	unsigned int val;
>  	int ret;
> 
>  	ret = regmap_field_read(regl->mode, &val);
> @@ -235,7 +235,6 @@ static unsigned da9063_buck_get_mode(struct
> regulator_dev *rdev)
>  	switch (val) {
>  	default:
>  	case BUCK_MODE_MANUAL:
> -		mode = REGULATOR_MODE_FAST |
> REGULATOR_MODE_STANDBY;
>  		/* Sleep flag bit decides the mode */
>  		break;
>  	case BUCK_MODE_SLEEP:
> @@ -262,11 +261,9 @@ static unsigned da9063_buck_get_mode(struct
> regulator_dev *rdev)
>  		return 0;
> 
>  	if (val)
> -		mode &= REGULATOR_MODE_STANDBY;
> +		return REGULATOR_MODE_STANDBY;
>  	else
> -		mode &= REGULATOR_MODE_NORMAL |
> REGULATOR_MODE_FAST;
> -
> -	return mode;
> +		return REGULATOR_MODE_FAST;
>  }
> 
>  /*
> --
> 2.20.1