[PATCH 2/7] iio: light: ltr390: simplify code in write_event_config callback

Julien Stephan posted 7 patches 1 month ago
There is a newer version of this series
[PATCH 2/7] iio: light: ltr390: simplify code in write_event_config callback
Posted by Julien Stephan 1 month ago
iio_ev_state_store is actually using kstrtobool to check user
input, then gives the converted boolean value to the write_event_config
callback.

Remove useless code in write_event_config callback.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
---
 drivers/iio/light/ltr390.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/iio/light/ltr390.c b/drivers/iio/light/ltr390.c
index 8e0a3fc3d923a6f65d2a629c87e7bfd35d82a507..ff6b5d8b582b33eba60b769dff529caa00fb7244 100644
--- a/drivers/iio/light/ltr390.c
+++ b/drivers/iio/light/ltr390.c
@@ -558,9 +558,6 @@ static int ltr390_write_event_config(struct iio_dev *indio_dev,
 	struct ltr390_data *data = iio_priv(indio_dev);
 	int ret;
 
-	if (state != 1  && state != 0)
-		return -EINVAL;
-
 	if (state == 0)
 		return regmap_clear_bits(data->regmap, LTR390_INT_CFG, LTR390_LS_INT_EN);
 

-- 
2.47.0
Re: [PATCH 2/7] iio: light: ltr390: simplify code in write_event_config callback
Posted by Jonathan Cameron 1 month ago
On Thu, 24 Oct 2024 11:11:24 +0200
Julien Stephan <jstephan@baylibre.com> wrote:

> iio_ev_state_store is actually using kstrtobool to check user
> input, then gives the converted boolean value to the write_event_config
> callback.
> 
> Remove useless code in write_event_config callback.
> 
> Signed-off-by: Julien Stephan <jstephan@baylibre.com>
> ---
>  drivers/iio/light/ltr390.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/iio/light/ltr390.c b/drivers/iio/light/ltr390.c
> index 8e0a3fc3d923a6f65d2a629c87e7bfd35d82a507..ff6b5d8b582b33eba60b769dff529caa00fb7244 100644
> --- a/drivers/iio/light/ltr390.c
> +++ b/drivers/iio/light/ltr390.c
> @@ -558,9 +558,6 @@ static int ltr390_write_event_config(struct iio_dev *indio_dev,
>  	struct ltr390_data *data = iio_priv(indio_dev);
>  	int ret;
>  
> -	if (state != 1  && state != 0)
> -		return -EINVAL;
> -
>  	if (state == 0)

Once you apply the final patch, the == 0 here will make less sense.
Can tidy that up here or in that final patch by just making this
if (!state) etc

>  		return regmap_clear_bits(data->regmap, LTR390_INT_CFG, LTR390_LS_INT_EN);
>  
>