On 04/12/16 02:19, Brian Masney wrote:
> When isl29028_set_proxim_sampling() fails, it was up to both callers to
> log the failure message. This patch moves the logging into
> isl29028_set_proxim_sampling() to reduce the overall amount of code in
> the driver.
>
> Signed-off-by: Brian Masney <masneyb@xxxxxxxxxxxxx>
Minor point inline.
> ---
> drivers/staging/iio/light/isl29028.c | 28 ++++++++++++++--------------
> 1 file changed, 14 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c
> index 23a4db8..0c8a878 100644
> --- a/drivers/staging/iio/light/isl29028.c
> +++ b/drivers/staging/iio/light/isl29028.c
> @@ -79,18 +79,28 @@ struct isl29028_chip {
> static int isl29028_set_proxim_sampling(struct isl29028_chip *chip,
> unsigned int sampling)
> {
> + struct device *dev = regmap_get_device(chip->regmap);
> static unsigned int prox_period[] = {800, 400, 200, 100, 75, 50, 12, 0};
> unsigned int sel;
> unsigned int period = DIV_ROUND_UP(1000, sampling);
> + int ret;
>
> for (sel = 0; sel < ARRAY_SIZE(prox_period); ++sel) {
> if (period >= prox_period[sel])
> break;
> }
>
> - return regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
> - ISL29028_CONF_PROX_SLP_MASK,
> - sel << ISL29028_CONF_PROX_SLP_SH);
> + ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
> + ISL29028_CONF_PROX_SLP_MASK,
> + sel << ISL29028_CONF_PROX_SLP_SH);
> + if (ret < 0)
> + dev_err(dev,
> + "%s(): Error %d setting the proximity sampling\n",
> + __func__, ret);
I'd prefer the cleaner style or a return inside this if statement and dropping the
else.
> + else
> + chip->prox_sampling = sampling;
> +
> + return ret;
> }
>
> static int isl29028_enable_proximity(struct isl29028_chip *chip)
> @@ -296,14 +306,6 @@ static int isl29028_write_raw(struct iio_dev *indio_dev,
> }
>
> ret = isl29028_set_proxim_sampling(chip, val);
> - if (ret < 0) {
> - dev_err(dev,
> - "Setting proximity samp_freq fail, err %d\n",
> - ret);
> - break;
> - }
> -
> - chip->prox_sampling = val;
> break;
> case IIO_LIGHT:
> if (mask != IIO_CHAN_INFO_SCALE) {
> @@ -452,10 +454,8 @@ static int isl29028_chip_init_and_power_on(struct isl29028_chip *chip)
> }
>
> ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling);
> - if (ret < 0) {
> - dev_err(dev, "setting the proximity, err = %d\n", ret);
> + if (ret < 0)
> return ret;
> - }
>
> ret = isl29028_set_als_scale(chip, chip->lux_scale);
> if (ret < 0)
>
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