Re: [PATCH/RFC 08/17] iio: humidity: hts221: Use bitfield helpers
From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Date: 2021-11-24 15:21:23
Also in:
linux-aspeed, linux-clk, linux-gpio, linux-iio, linux-media, linux-mmc, linux-omap, linux-pm, linux-renesas-soc, linux-wireless, lkml
On Mon, 22 Nov 2021 16:54:01 +0100 Geert Uytterhoeven [off-list ref] 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
quoted hunk ↗ jump to hunk
--- 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;