diff mbox series

[PATCH/RFC,08/17] iio: humidity: hts221: Use bitfield helpers

Message ID c906f7449c0210cefba53eab2c2d87105d5c8599.1637592133.git.geert+renesas@glider.be (mailing list archive)
State New, archived
Headers show
Series Non-const bitfield helper conversions | expand

Commit Message

Geert Uytterhoeven Nov. 22, 2021, 3:54 p.m. UTC
Use the field_prep() helper, instead of open-coding the same operation.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Compile-tested only.
Marked RFC, as this depends on [PATCH 01/17], but follows a different
path to upstream.
---
 drivers/iio/humidity/hts221_core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Jonathan Cameron Nov. 24, 2021, 3:21 p.m. UTC | #1
On Mon, 22 Nov 2021 16:54:01 +0100
Geert Uytterhoeven <geert+renesas@glider.be> wrote:

> Use the field_prep() helper, instead of open-coding the same operation.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Hi Geert,

If this should got forwards, looks like a nice cleanup for the two IIO
ones, so I'll be happy to pick them up once infrastructure in place
(ideally have the infrastructure an immutable branch to save having
to revisit in 3+ months time!)

Jonathan

> ---
> Compile-tested only.
> Marked RFC, as this depends on [PATCH 01/17], but follows a different
> path to upstream.
> ---
>  drivers/iio/humidity/hts221_core.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/iio/humidity/hts221_core.c b/drivers/iio/humidity/hts221_core.c
> index 6a39615b696114cd..749aedc469ede5c1 100644
> --- a/drivers/iio/humidity/hts221_core.c
> +++ b/drivers/iio/humidity/hts221_core.c
> @@ -7,6 +7,7 @@
>   * Lorenzo Bianconi <lorenzo.bianconi@st.com>
>   */
>  
> +#include <linux/bitfield.h>
>  #include <linux/kernel.h>
>  #include <linux/module.h>
>  #include <linux/device.h>
> @@ -171,7 +172,7 @@ static int hts221_update_avg(struct hts221_hw *hw,
>  			     u16 val)
>  {
>  	const struct hts221_avg *avg = &hts221_avg_list[type];
> -	int i, err, data;
> +	int i, err;
>  
>  	for (i = 0; i < HTS221_AVG_DEPTH; i++)
>  		if (avg->avg_avl[i] == val)
> @@ -180,9 +181,8 @@ static int hts221_update_avg(struct hts221_hw *hw,
>  	if (i == HTS221_AVG_DEPTH)
>  		return -EINVAL;
>  
> -	data = ((i << __ffs(avg->mask)) & avg->mask);
> -	err = regmap_update_bits(hw->regmap, avg->addr,
> -				 avg->mask, data);
> +	err = regmap_update_bits(hw->regmap, avg->addr, avg->mask,
> +				 field_prep(avg->mask, i));
>  	if (err < 0)
>  		return err;
>
diff mbox series

Patch

diff --git a/drivers/iio/humidity/hts221_core.c b/drivers/iio/humidity/hts221_core.c
index 6a39615b696114cd..749aedc469ede5c1 100644
--- a/drivers/iio/humidity/hts221_core.c
+++ b/drivers/iio/humidity/hts221_core.c
@@ -7,6 +7,7 @@ 
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
  */
 
+#include <linux/bitfield.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/device.h>
@@ -171,7 +172,7 @@  static int hts221_update_avg(struct hts221_hw *hw,
 			     u16 val)
 {
 	const struct hts221_avg *avg = &hts221_avg_list[type];
-	int i, err, data;
+	int i, err;
 
 	for (i = 0; i < HTS221_AVG_DEPTH; i++)
 		if (avg->avg_avl[i] == val)
@@ -180,9 +181,8 @@  static int hts221_update_avg(struct hts221_hw *hw,
 	if (i == HTS221_AVG_DEPTH)
 		return -EINVAL;
 
-	data = ((i << __ffs(avg->mask)) & avg->mask);
-	err = regmap_update_bits(hw->regmap, avg->addr,
-				 avg->mask, data);
+	err = regmap_update_bits(hw->regmap, avg->addr, avg->mask,
+				 field_prep(avg->mask, i));
 	if (err < 0)
 		return err;